Merge pull request #788 from zalando-incubator/dependabot/go_modules/all-go-mod-patch-and-minor-b5de2b574f

Bump the all-go-mod-patch-and-minor group with 4 updates

.github/dependabot.yml

@@ -3,9 +3,16 @@ updates:
 - package-ecosystem: gomod
   directory: "/"
   schedule:
-    interval: monthly
-    time: "07:00"
+    interval: weekly
   open-pull-requests-limit: 10
+  groups:
+    all-go-mod-patch-and-minor:
+      patterns: ["*"]
+      update-types: ["patch", "minor"]
+  ignore:
+  # Ignore k8s and its transitives modules as they are upgraded manually
+  - dependency-name: "k8s.io/*"
+    update-types: [ "version-update:semver-major", "version-update:semver-minor" ]
 - package-ecosystem: docker
   directory: "/"
   schedule:

.github/workflows/ci.yaml

@@ -10,10 +10,10 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-go@v2
+    - uses: actions/checkout@v4
+    - uses: actions/setup-go@v5
       with:
-        go-version: '^1.19'
+        go-version: '^1.23'
     - run: go version
     - run: go install github.com/mattn/goveralls@latest
     - run: go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest

Dockerfile

@@ -1,9 +1,7 @@
-ARG BASE_IMAGE=registry.opensource.zalan.do/library/alpine-3:latest
+ARG BASE_IMAGE=registry.opensource.zalan.do/library/static:latest
 FROM ${BASE_IMAGE}
 LABEL maintainer="Team Teapot @ Zalando SE <team-teapot@zalando.de>"
 
-RUN apk add --no-cache tzdata
-
 ARG TARGETARCH
 
 ADD build/linux/${TARGETARCH}/kube-metrics-adapter /

Makefile

@@ -42,11 +42,21 @@ $(OPENAPI): go.mod
 	go run k8s.io/kube-openapi/cmd/openapi-gen \
 		--go-header-file hack/boilerplate.go.txt \
 		--logtostderr \
-		-i k8s.io/metrics/pkg/apis/custom_metrics,k8s.io/metrics/pkg/apis/custom_metrics/v1beta1,k8s.io/metrics/pkg/apis/custom_metrics/v1beta2,k8s.io/metrics/pkg/apis/external_metrics,k8s.io/metrics/pkg/apis/external_metrics/v1beta1,k8s.io/metrics/pkg/apis/metrics,k8s.io/metrics/pkg/apis/metrics/v1beta1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/api/resource,k8s.io/apimachinery/pkg/version,k8s.io/api/core/v1 \
-		-p pkg/api/generated/openapi \
-		-o . \
-		-O zz_generated.openapi \
-		-r /dev/null
+		--output-dir pkg/api/generated/openapi \
+		--output-pkg github.com/zalando-incubator/kube-metrics-adapter/pkg/api/generated/openapi \
+		--output-file zz_generated.openapi.go \
+		-r /dev/null \
+		k8s.io/metrics/pkg/apis/custom_metrics \
+		k8s.io/metrics/pkg/apis/custom_metrics/v1beta1 \
+		k8s.io/metrics/pkg/apis/custom_metrics/v1beta2 \
+		k8s.io/metrics/pkg/apis/external_metrics \
+		k8s.io/metrics/pkg/apis/external_metrics/v1beta1 \
+		k8s.io/metrics/pkg/apis/metrics \
+		k8s.io/metrics/pkg/apis/metrics/v1beta1 \
+		k8s.io/apimachinery/pkg/apis/meta/v1 \
+		k8s.io/apimachinery/pkg/api/resource \
+		k8s.io/apimachinery/pkg/version \
+		k8s.io/api/core/v1
 
 build.local: build/$(BINARY) $(GENERATED_CRDS)
 build.linux: build/linux/$(BINARY)

README.md

@@ -71,6 +71,15 @@ export GO111MODULE=on # needed if the project is checked out in your $GOPATH.
 $ make
 ```
 
+## Install in Kubernetes
+
+Clone this repository, and run as below:
+
+```sh
+$ cd kube-metrics-adapter/docs
+$ kubectl apply -f .
+```
+
 ## Collectors
 
 Collectors are different implementations for getting metrics requested by an
@@ -107,6 +116,7 @@ metadata:
   annotations:
     # metric-config.<metricType>.<metricName>.<collectorType>/<configKey>
     metric-config.pods.requests-per-second.json-path/json-key: "$.http_server.rps"
+    metric-config.pods.requests-per-second.json-path/json-eval: "ceil($['active processes'] / $['total processes'] * 100)" # cannot use both json-eval and json-key
     metric-config.pods.requests-per-second.json-path/path: /metrics
     metric-config.pods.requests-per-second.json-path/port: "9090"
     metric-config.pods.requests-per-second.json-path/scheme: "https"
@@ -149,6 +159,10 @@ The json-path query support depends on the
 See the README for possible queries. It's expected that the metric you query
 returns something that can be turned into a `float64`.
 
+The `json-eval` configuration option allows for more complex calculations to be
+performed on the extracted metric. The `json-eval` expression is evaluated using
+[ajson's script engine](https://github.com/spyzhov/ajson?tab=readme-ov-file#script-engine).
+
 The other configuration options `path`, `port` and `scheme` specify where the metrics
 endpoint is exposed on the pod. The `path` and `port` options do not have default values
 so they must be defined. The `scheme` is optional and defaults to `http`.
@@ -816,6 +830,7 @@ metadata:
   annotations:
     # metric-config.<metricType>.<metricName>.<collectorType>/<configKey>
     metric-config.external.unique-metric-name.json-path/json-key: "$.some-metric.value"
+    metric-config.external.unique-metric-name.json-path/json-eval: ceil($['active processes'] / $['total processes'] * 100) # cannot use both json-eval and json-key
     metric-config.external.unique-metric-name.json-path/endpoint: "http://metric-source.app-namespace:8080/metrics"
     metric-config.external.unique-metric-name.json-path/aggregator: "max"
     metric-config.external.unique-metric-name.json-path/interval: "60s" # optional
@@ -843,6 +858,8 @@ The HTTP collector similar to the Pod Metrics collector. The following
 configuration values are supported:
 
 - `json-key` to specify the JSON path of the metric to be queried
+- `json-eval` to specify an evaluate string to [evaluate on the script engine](https://github.com/spyzhov/ajson?tab=readme-ov-file#script-engine), 
+    cannot be used in conjunction with `json-key`
 - `endpoint` the fully formed path to query for the metric. In the above example a Kubernetes _Service_
     in the namespace `app-namespace` is called.
 - `aggregator` is only required if the metric is an array of values and specifies how the values

delivery.yaml

@@ -42,5 +42,5 @@ pipeline:
       make build.linux.amd64 build.linux.arm64
 
       docker buildx create --config /etc/cdp-buildkitd.toml --driver-opt network=host --bootstrap --use
-      docker buildx build --rm --build-arg BASE_IMAGE=container-registry.zalando.net/library/alpine-3:latest -t "${IMAGE}:${VERSION}" --platform linux/amd64,linux/arm64 --push .
+      docker buildx build --rm --build-arg BASE_IMAGE=container-registry.zalando.net/library/static:latest -t "${IMAGE}:${VERSION}" --platform linux/amd64,linux/arm64 --push .
       cdp-promote-image "${IMAGE}:${VERSION}"

docs/cluster_scaling_schedules_crd.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.0
+    controller-gen.kubebuilder.io/version: v0.16.5
   name: clusterscalingschedules.zalando.org
 spec:
   group: zalando.org
@@ -22,18 +22,24 @@ spec:
     name: v1
     schema:
       openAPIV3Schema:
-        description: ClusterScalingSchedule describes a cluster scoped time based
-          metric to be used in autoscaling operations.
+        description: |-
+          ClusterScalingSchedule describes a cluster scoped time based metric
+          to be used in autoscaling operations.
         properties:
           apiVersion:
-            description: 'APIVersion defines the versioned schema of this representation
-              of an object. Servers should convert recognized schemas to the latest
-              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            description: |-
+              APIVersion defines the versioned schema of this representation of an object.
+              Servers should convert recognized schemas to the latest internal value, and
+              may reject unrecognized values.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
             type: string
           kind:
-            description: 'Kind is a string value representing the REST resource this
-              object represents. Servers may infer this from the endpoint the client
-              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            description: |-
+              Kind is a string value representing the REST resource this object represents.
+              Servers may infer this from the endpoint the client submits requests to.
+              Cannot be updated.
+              In CamelCase.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
             type: string
           metadata:
             type: object
@@ -46,25 +52,30 @@ spec:
                 format: int64
                 type: integer
               schedules:
-                description: Schedules is the list of schedules for this ScalingSchedule
+                description: |-
+                  Schedules is the list of schedules for this ScalingSchedule
                   resource. All the schedules defined here will result on the value
-                  to the same metric. New metrics require a new ScalingSchedule resource.
+                  to the same metric. New metrics require a new ScalingSchedule
+                  resource.
                 items:
                   description: Schedule is the schedule details to be used inside
                     a ScalingSchedule.
                   properties:
                     date:
-                      description: Defines the starting date of a OneTime schedule.
-                        It has to be a RFC3339 formatted date.
+                      description: |-
+                        Defines the starting date of a OneTime schedule. It has to
+                        be a RFC3339 formatted date.
                       format: date-time
                       type: string
                     durationMinutes:
-                      description: The duration in minutes (default 0) that the configured
-                        value will be returned for the defined schedule.
+                      description: |-
+                        The duration in minutes (default 0) that the configured value will be
+                        returned for the defined schedule.
                       type: integer
                     endDate:
-                      description: Defines the ending date of a OneTime schedule.
-                        It must be a RFC3339 formatted date.
+                      description: |-
+                        Defines the ending date of a OneTime schedule. It must be
+                        a RFC3339 formatted date.
                       format: date-time
                       type: string
                     period:
@@ -94,8 +105,9 @@ spec:
                           pattern: (([0-1][0-9])|([2][0-3])):([0-5][0-9])
                           type: string
                         timezone:
-                          description: The location name corresponding to a file in
-                            the IANA Time Zone database, like Europe/Berlin.
+                          description: |-
+                            The location name corresponding to a file in the IANA
+                            Time Zone database, like Europe/Berlin.
                           type: string
                       required:
                       - days
@@ -103,7 +115,8 @@ spec:
                       - timezone
                       type: object
                     type:
-                      description: Defines if the schedule is a OneTime schedule or
+                      description: |-
+                        Defines if the schedule is a OneTime schedule or
                         Repeating one. If OneTime, date has to be defined. If Repeating,
                         Period has to be defined.
                       enum:
@@ -128,8 +141,9 @@ spec:
             properties:
               active:
                 default: false
-                description: Active is true if at least one of the schedules defined
-                  in the scaling schedule is currently active.
+                description: |-
+                  Active is true if at least one of the schedules defined in the
+                  scaling schedule is currently active.
                 type: boolean
             type: object
         required:

docs/helm/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: kube-metrics-adapter
-version: 0.2.0
+version: 0.2.3
 description: kube-metrics-adapter helm chart
 home: https://github.com/zalando-incubator/kube-metrics-adapter
 maintainers:

docs/helm/templates/cluster_scaling_schedules_crd.yaml

@@ -3,8 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
-  creationTimestamp: null
+    controller-gen.kubebuilder.io/version: v0.14.0
   name: clusterscalingschedules.zalando.org
 spec:
   group: zalando.org
@@ -23,18 +22,24 @@ spec:
     name: v1
     schema:
       openAPIV3Schema:
-        description: ClusterScalingSchedule describes a cluster scoped time based
-          metric to be used in autoscaling operations.
+        description: |-
+          ClusterScalingSchedule describes a cluster scoped time based metric
+          to be used in autoscaling operations.
         properties:
           apiVersion:
-            description: 'APIVersion defines the versioned schema of this representation
-              of an object. Servers should convert recognized schemas to the latest
-              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            description: |-
+              APIVersion defines the versioned schema of this representation of an object.
+              Servers should convert recognized schemas to the latest internal value, and
+              may reject unrecognized values.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
             type: string
           kind:
-            description: 'Kind is a string value representing the REST resource this
-              object represents. Servers may infer this from the endpoint the client
-              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            description: |-
+              Kind is a string value representing the REST resource this object represents.
+              Servers may infer this from the endpoint the client submits requests to.
+              Cannot be updated.
+              In CamelCase.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
             type: string
           metadata:
             type: object
@@ -47,25 +52,30 @@ spec:
                 format: int64
                 type: integer
               schedules:
-                description: Schedules is the list of schedules for this ScalingSchedule
+                description: |-
+                  Schedules is the list of schedules for this ScalingSchedule
                   resource. All the schedules defined here will result on the value
-                  to the same metric. New metrics require a new ScalingSchedule resource.
+                  to the same metric. New metrics require a new ScalingSchedule
+                  resource.
                 items:
                   description: Schedule is the schedule details to be used inside
                     a ScalingSchedule.
                   properties:
                     date:
-                      description: Defines the starting date of a OneTime schedule.
-                        It has to be a RFC3339 formatted date.
+                      description: |-
+                        Defines the starting date of a OneTime schedule. It has to
+                        be a RFC3339 formatted date.
                       format: date-time
                       type: string
                     durationMinutes:
-                      description: The duration in minutes (default 0) that the configured
-                        value will be returned for the defined schedule.
+                      description: |-
+                        The duration in minutes (default 0) that the configured value will be
+                        returned for the defined schedule.
                       type: integer
                     endDate:
-                      description: Defines the ending date of a OneTime schedule.
-                        It must be a RFC3339 formatted date.
+                      description: |-
+                        Defines the ending date of a OneTime schedule. It must be
+                        a RFC3339 formatted date.
                       format: date-time
                       type: string
                     period:
@@ -95,8 +105,9 @@ spec:
                           pattern: (([0-1][0-9])|([2][0-3])):([0-5][0-9])
                           type: string
                         timezone:
-                          description: The location name corresponding to a file in
-                            the IANA Time Zone database, like Europe/Berlin.
+                          description: |-
+                            The location name corresponding to a file in the IANA
+                            Time Zone database, like Europe/Berlin.
                           type: string
                       required:
                       - days
@@ -104,7 +115,8 @@ spec:
                       - timezone
                       type: object
                     type:
-                      description: Defines if the schedule is a OneTime schedule or
+                      description: |-
+                        Defines if the schedule is a OneTime schedule or
                         Repeating one. If OneTime, date has to be defined. If Repeating,
                         Period has to be defined.
                       enum:
@@ -129,8 +141,9 @@ spec:
             properties:
               active:
                 default: false
-                description: Active is true if at least one of the schedules defined
-                  in the scaling schedule is currently active.
+                description: |-
+                  Active is true if at least one of the schedules defined in the
+                  scaling schedule is currently active.
                 type: boolean
             type: object
         required:
@@ -140,10 +153,4 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
 {{- end}}

docs/helm/templates/scaling_schedules_crd.yaml

@@ -3,8 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
-  creationTimestamp: null
+    controller-gen.kubebuilder.io/version: v0.14.0
   name: scalingschedules.zalando.org
 spec:
   group: zalando.org
@@ -25,18 +24,24 @@ spec:
     name: v1
     schema:
       openAPIV3Schema:
-        description: ScalingSchedule describes a namespaced time based metric to be
-          used in autoscaling operations.
+        description: |-
+          ScalingSchedule describes a namespaced time based metric to be used
+          in autoscaling operations.
         properties:
           apiVersion:
-            description: 'APIVersion defines the versioned schema of this representation
-              of an object. Servers should convert recognized schemas to the latest
-              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            description: |-
+              APIVersion defines the versioned schema of this representation of an object.
+              Servers should convert recognized schemas to the latest internal value, and
+              may reject unrecognized values.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
             type: string
           kind:
-            description: 'Kind is a string value representing the REST resource this
-              object represents. Servers may infer this from the endpoint the client
-              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            description: |-
+              Kind is a string value representing the REST resource this object represents.
+              Servers may infer this from the endpoint the client submits requests to.
+              Cannot be updated.
+              In CamelCase.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
             type: string
           metadata:
             type: object
@@ -49,25 +54,30 @@ spec:
                 format: int64
                 type: integer
               schedules:
-                description: Schedules is the list of schedules for this ScalingSchedule
+                description: |-
+                  Schedules is the list of schedules for this ScalingSchedule
                   resource. All the schedules defined here will result on the value
-                  to the same metric. New metrics require a new ScalingSchedule resource.
+                  to the same metric. New metrics require a new ScalingSchedule
+                  resource.
                 items:
                   description: Schedule is the schedule details to be used inside
                     a ScalingSchedule.
                   properties:
                     date:
-                      description: Defines the starting date of a OneTime schedule.
-                        It has to be a RFC3339 formatted date.
+                      description: |-
+                        Defines the starting date of a OneTime schedule. It has to
+                        be a RFC3339 formatted date.
                       format: date-time
                       type: string
                     durationMinutes:
-                      description: The duration in minutes (default 0) that the configured
-                        value will be returned for the defined schedule.
+                      description: |-
+                        The duration in minutes (default 0) that the configured value will be
+                        returned for the defined schedule.
                       type: integer
                     endDate:
-                      description: Defines the ending date of a OneTime schedule.
-                        It must be a RFC3339 formatted date.
+                      description: |-
+                        Defines the ending date of a OneTime schedule. It must be
+                        a RFC3339 formatted date.
                       format: date-time
                       type: string
                     period:
@@ -97,8 +107,9 @@ spec:
                           pattern: (([0-1][0-9])|([2][0-3])):([0-5][0-9])
                           type: string
                         timezone:
-                          description: The location name corresponding to a file in
-                            the IANA Time Zone database, like Europe/Berlin.
+                          description: |-
+                            The location name corresponding to a file in the IANA
+                            Time Zone database, like Europe/Berlin.
                           type: string
                       required:
                       - days
@@ -106,7 +117,8 @@ spec:
                       - timezone
                       type: object
                     type:
-                      description: Defines if the schedule is a OneTime schedule or
+                      description: |-
+                        Defines if the schedule is a OneTime schedule or
                         Repeating one. If OneTime, date has to be defined. If Repeating,
                         Period has to be defined.
                       enum:
@@ -131,8 +143,9 @@ spec:
             properties:
               active:
                 default: false
-                description: Active is true if at least one of the schedules defined
-                  in the scaling schedule is currently active.
+                description: |-
+                  Active is true if at least one of the schedules defined in the
+                  scaling schedule is currently active.
                 type: boolean
             type: object
         required:
@@ -142,10 +155,4 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
 {{- end}}

docs/helm/templates/service-account.yaml

@@ -3,3 +3,4 @@ apiVersion: v1
 metadata:
   name: kube-metrics-adapter
   namespace: {{ .Values.namespace }}
+  annotations: {{- toYaml .Values.serviceAccountAnnotations | nindent 4 }}

docs/helm/values.yaml

@@ -4,7 +4,7 @@ replicas: 1
 
 registry:
   image: registry.opensource.zalan.do/teapot/kube-metrics-adapter
-  imageTag: v0.2.0
+  imageTag: v0.2.3
   imagePullPolicy: IfNotPresent
 
 service:
@@ -14,15 +14,15 @@ service:
 addDirectoryHeader:
 contentionProfiling:
 profiling:
-enableCustomMetricsApi:
-enableExternalMetricsApi:
+enableCustomMetricsApi: true
+enableExternalMetricsApi: true
 credentialsDirectory:
 disregardIncompatibleHPAs:
 http2MaxStreamsPerConnection:
 listerKubeConfig:
 skipperBackendsAnnotation:
 skipperIngressMetrics:
-skipperRouteGroupMetrics:
+skipperRouteGroupMetrics: true
 token:
 vmodule:
 
@@ -95,7 +95,7 @@ resources:
     memory: 100Mi
 
 scalingSchedule:
-  enabled: false
+  enabled: true
 
 nodeSelector:
   kubernetes.io/os: linux
@@ -107,3 +107,5 @@ affinity: {}
 priorityClassName: ""
 
 podAnnotations: {}
+
+serviceAccountAnnotations: {}

docs/scaling_schedules_crd.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.0
+    controller-gen.kubebuilder.io/version: v0.16.5
   name: scalingschedules.zalando.org
 spec:
   group: zalando.org
@@ -24,18 +24,24 @@ spec:
     name: v1
     schema:
       openAPIV3Schema:
-        description: ScalingSchedule describes a namespaced time based metric to be
-          used in autoscaling operations.
+        description: |-
+          ScalingSchedule describes a namespaced time based metric to be used
+          in autoscaling operations.
         properties:
           apiVersion:
-            description: 'APIVersion defines the versioned schema of this representation
-              of an object. Servers should convert recognized schemas to the latest
-              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            description: |-
+              APIVersion defines the versioned schema of this representation of an object.
+              Servers should convert recognized schemas to the latest internal value, and
+              may reject unrecognized values.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
             type: string
           kind:
-            description: 'Kind is a string value representing the REST resource this
-              object represents. Servers may infer this from the endpoint the client
-              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            description: |-
+              Kind is a string value representing the REST resource this object represents.
+              Servers may infer this from the endpoint the client submits requests to.
+              Cannot be updated.
+              In CamelCase.
+              More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
             type: string
           metadata:
             type: object
@@ -48,25 +54,30 @@ spec:
                 format: int64
                 type: integer
               schedules:
-                description: Schedules is the list of schedules for this ScalingSchedule
+                description: |-
+                  Schedules is the list of schedules for this ScalingSchedule
                   resource. All the schedules defined here will result on the value
-                  to the same metric. New metrics require a new ScalingSchedule resource.
+                  to the same metric. New metrics require a new ScalingSchedule
+                  resource.
                 items:
                   description: Schedule is the schedule details to be used inside
                     a ScalingSchedule.
                   properties:
                     date:
-                      description: Defines the starting date of a OneTime schedule.
-                        It has to be a RFC3339 formatted date.
+                      description: |-
+                        Defines the starting date of a OneTime schedule. It has to
+                        be a RFC3339 formatted date.
                       format: date-time
                       type: string
                     durationMinutes:
-                      description: The duration in minutes (default 0) that the configured
-                        value will be returned for the defined schedule.
+                      description: |-
+                        The duration in minutes (default 0) that the configured value will be
+                        returned for the defined schedule.
                       type: integer
                     endDate:
-                      description: Defines the ending date of a OneTime schedule.
-                        It must be a RFC3339 formatted date.
+                      description: |-
+                        Defines the ending date of a OneTime schedule. It must be
+                        a RFC3339 formatted date.
                       format: date-time
                       type: string
                     period:
@@ -96,8 +107,9 @@ spec:
                           pattern: (([0-1][0-9])|([2][0-3])):([0-5][0-9])
                           type: string
                         timezone:
-                          description: The location name corresponding to a file in
-                            the IANA Time Zone database, like Europe/Berlin.
+                          description: |-
+                            The location name corresponding to a file in the IANA
+                            Time Zone database, like Europe/Berlin.
                           type: string
                       required:
                       - days
@@ -105,7 +117,8 @@ spec:
                       - timezone
                       type: object
                     type:
-                      description: Defines if the schedule is a OneTime schedule or
+                      description: |-
+                        Defines if the schedule is a OneTime schedule or
                         Repeating one. If OneTime, date has to be defined. If Repeating,
                         Period has to be defined.
                       enum:
@@ -130,8 +143,9 @@ spec:
             properties:
               active:
                 default: false
-                description: Active is true if at least one of the schedules defined
-                  in the scaling schedule is currently active.
+                description: |-
+                  Active is true if at least one of the schedules defined in the
+                  scaling schedule is currently active.
                 type: boolean
             type: object
         required:

go.mod

@@ -1,131 +1,191 @@
 module github.com/zalando-incubator/kube-metrics-adapter
 
 require (
-	github.com/argoproj/argo-rollouts v1.6.6
-	github.com/aws/aws-sdk-go v1.51.32
+	github.com/argoproj/argo-rollouts v1.8.0
+	github.com/aws/aws-sdk-go-v2 v1.36.2
+	github.com/aws/aws-sdk-go-v2/config v1.29.7
+	github.com/aws/aws-sdk-go-v2/service/sqs v1.37.15
 	github.com/influxdata/influxdb-client-go v1.4.0
-	github.com/prometheus/client_golang v1.17.0
-	github.com/prometheus/common v0.44.0
+	github.com/prometheus/client_golang v1.21.0
+	github.com/prometheus/common v0.62.0
 	github.com/sirupsen/logrus v1.9.3
-	github.com/spf13/cobra v1.8.0
-	github.com/spyzhov/ajson v0.9.1
-	github.com/stretchr/testify v1.9.0
+	github.com/spf13/cobra v1.9.1
+	github.com/spyzhov/ajson v0.9.6
+	github.com/stretchr/testify v1.10.0
 	github.com/szuecs/routegroup-client v0.28.2
-	github.com/zalando-incubator/cluster-lifecycle-manager v0.0.0-20230601114834-6ed1bba3c85d
-	golang.org/x/net v0.24.0
-	golang.org/x/oauth2 v0.18.0
-	golang.org/x/sync v0.7.0
-	k8s.io/api v0.28.9
-	k8s.io/apimachinery v0.28.9
-	k8s.io/apiserver v0.28.9
-	k8s.io/client-go v0.28.9
-	k8s.io/code-generator v0.28.9
-	k8s.io/component-base v0.28.9
+	github.com/zalando-incubator/cluster-lifecycle-manager v0.0.0-20240619093047-7853f3386b71
+	golang.org/x/net v0.35.0
+	golang.org/x/oauth2 v0.26.0
+	golang.org/x/sync v0.11.0
+	k8s.io/api v0.31.6
+	k8s.io/apimachinery v0.31.6
+	k8s.io/apiserver v0.31.6
+	k8s.io/client-go v0.31.6
+	k8s.io/code-generator v0.31.6
+	k8s.io/component-base v0.31.6
 	k8s.io/klog v1.0.0
-	k8s.io/kube-openapi v0.0.0-20230901164831-6c774f458599
-	k8s.io/metrics v0.28.9
-	sigs.k8s.io/controller-tools v0.12.0
-	sigs.k8s.io/custom-metrics-apiserver v1.28.0
+	k8s.io/kube-openapi v0.0.0-20240620174524-b456828f718b
+	k8s.io/metrics v0.31.6
+	k8s.io/utils v0.0.0-20240711033017-18e509b52bc8
+	sigs.k8s.io/controller-tools v0.16.5
+	sigs.k8s.io/custom-metrics-apiserver v1.30.1-0.20241105195130-84dc8cfe2555
 )
 
 require (
+	github.com/BurntSushi/toml v1.4.0 // indirect
+	github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 // indirect
+	github.com/CloudyKit/jet/v6 v6.2.0 // indirect
+	github.com/Joker/jade v1.1.3 // indirect
 	github.com/NYTimes/gziphandler v1.1.1 // indirect
-	github.com/antlr/antlr4/runtime/Go/antlr/v4 v4.0.0-20230305170008-8188dc5388df // indirect
+	github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06 // indirect
+	github.com/andybalholm/brotli v1.1.0 // indirect
+	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.17.60 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.29 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.33 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.33 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.14 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.24.16 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.28.15 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.33.15 // indirect
+	github.com/aws/smithy-go v1.22.2 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/bytedance/sonic v1.11.9 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/coreos/go-semver v0.3.1 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/deepmap/oapi-codegen v1.11.0 // indirect
-	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
-	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
-	github.com/fatih/color v1.15.0 // indirect
-	github.com/felixge/httpsnoop v1.0.3 // indirect
-	github.com/fsnotify/fsnotify v1.6.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/deepmap/oapi-codegen v1.16.3 // indirect
+	github.com/emicklei/go-restful/v3 v3.12.1 // indirect
+	github.com/fatih/color v1.18.0 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/flosch/pongo2/v4 v4.0.2 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.4 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/gin-gonic/gin v1.10.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-openapi/jsonpointer v0.20.2 // indirect
-	github.com/go-openapi/jsonreference v0.20.4 // indirect
-	github.com/go-openapi/swag v0.22.9 // indirect
-	github.com/gobuffalo/flect v1.0.2 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.22.0 // indirect
+	github.com/gobuffalo/flect v1.0.3 // indirect
+	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/cel-go v0.16.1 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/gomarkdown/markdown v0.0.0-20241205020045-f7e15b2f3e62 // indirect
+	github.com/google/cel-go v0.20.1 // indirect
 	github.com/google/gnostic-models v0.6.9-0.20230804172637-c7be7c783f49 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/google/uuid v1.3.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/gorilla/css v1.0.1 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.11.3 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
 	github.com/imdario/mergo v0.3.16 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf // indirect
-	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/iris-contrib/schema v0.0.6 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/kataras/blocks v0.0.8 // indirect
+	github.com/kataras/golog v0.1.12 // indirect
+	github.com/kataras/iris/v12 v12.2.11 // indirect
+	github.com/kataras/pio v0.0.13 // indirect
+	github.com/kataras/sitemap v0.0.6 // indirect
+	github.com/kataras/tunnel v0.0.4 // indirect
+	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
+	github.com/kylelemons/godebug v1.1.0 // indirect
+	github.com/labstack/echo/v4 v4.12.0 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mailgun/raymond/v2 v2.0.48 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.17 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.26 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_model v0.6.0 // indirect
-	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stoewer/go-strcase v1.2.0 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.9 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.9 // indirect
-	go.etcd.io/etcd/client/v3 v3.5.9 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.35.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.35.1 // indirect
-	go.opentelemetry.io/otel v1.14.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.10.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.10.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.10.0 // indirect
-	go.opentelemetry.io/otel/metric v0.31.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.10.0 // indirect
-	go.opentelemetry.io/otel/trace v1.14.0 // indirect
-	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
-	go.uber.org/atomic v1.10.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/schollz/closestmatch v2.1.0+incompatible // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
+	github.com/stoewer/go-strcase v1.3.0 // indirect
+	github.com/tdewolff/minify/v2 v2.20.34 // indirect
+	github.com/tdewolff/parse/v2 v2.7.15 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	github.com/vmihailenco/msgpack/v5 v5.4.1 // indirect
+	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
+	github.com/yosssi/ace v0.0.5 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.14 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.14 // indirect
+	go.etcd.io/etcd/client/v3 v3.5.14 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.53.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.53.0 // indirect
+	go.opentelemetry.io/otel v1.28.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.27.0 // indirect
+	go.opentelemetry.io/otel/metric v1.28.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.28.0 // indirect
+	go.opentelemetry.io/otel/trace v1.28.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.21.0 // indirect
-	golang.org/x/crypto v0.22.0 // indirect
-	golang.org/x/exp v0.0.0-20220827204233-334a2380cb91 // indirect
-	golang.org/x/mod v0.14.0 // indirect
-	golang.org/x/sys v0.19.0 // indirect
-	golang.org/x/term v0.19.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	go.uber.org/zap v1.26.0 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.33.0 // indirect
+	golang.org/x/exp v0.0.0-20240613232115-7f521ea00fb8 // indirect
+	golang.org/x/mod v0.21.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
+	golang.org/x/term v0.29.0 // indirect
+	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
-	golang.org/x/tools v0.16.1 // indirect
-	google.golang.org/appengine v1.6.8 // indirect
-	google.golang.org/genproto v0.0.0-20230706204954-ccb25ca9f130 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20230706204954-ccb25ca9f130 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
-	google.golang.org/grpc v1.57.1 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	golang.org/x/tools v0.26.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240903143218-8af14fe29dc1 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240903143218-8af14fe29dc1 // indirect
+	google.golang.org/grpc v1.68.1 // indirect
+	google.golang.org/protobuf v1.36.1 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/apiextensions-apiserver v0.28.9 // indirect
-	k8s.io/gengo v0.0.0-20230829151522-9cce18d56c01 // indirect
-	k8s.io/klog/v2 v2.120.1 // indirect
-	k8s.io/kms v0.28.9 // indirect
-	k8s.io/utils v0.0.0-20240102154912-e7106e64919e // indirect
-	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.1.2 // indirect
+	k8s.io/apiextensions-apiserver v0.31.2 // indirect
+	k8s.io/gengo/v2 v2.0.0-20240228010128-51d4e06bde70 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/kms v0.31.6 // indirect
+	sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.30.3 // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
 	sigs.k8s.io/yaml v1.4.0 // indirect
 )
 
-replace go.opentelemetry.io/otel => go.opentelemetry.io/otel v1.10.0
-
-go 1.22
+go 1.23

hack/update-codegen.sh

@@ -24,51 +24,40 @@ CUSTOM_RESOURCE_NAME="zalando.org"
 CUSTOM_RESOURCE_VERSION="v1"
 
 SCRIPT_ROOT="$(dirname "${BASH_SOURCE[0]}")/.."
-OUTPUT_BASE="$(dirname "${BASH_SOURCE[0]}")/"
 
-# generate the code with:
-# --output-base    because this script should also be able to run inside the vendor dir of
-#                  k8s.io/kubernetes. The output-base is needed for the generators to output into the vendor dir
-#                  instead of the $GOPATH directly. For normal projects this can be dropped.
-
-OUTPUT_PKG="${GOPKG}/pkg/client"
+OUTPUT_DIR="pkg/client"
+OUTPUT_PKG="${GOPKG}/${OUTPUT_DIR}"
 APIS_PKG="${GOPKG}/pkg/apis"
 GROUPS_WITH_VERSIONS="${CUSTOM_RESOURCE_NAME}:${CUSTOM_RESOURCE_VERSION}"
 
 echo "Generating deepcopy funcs"
 go run k8s.io/code-generator/cmd/deepcopy-gen \
-  --input-dirs "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}" \
-  -O zz_generated.deepcopy \
+  --output-file zz_generated.deepcopy.go \
   --bounding-dirs "${APIS_PKG}" \
   --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
-  --output-base "$OUTPUT_BASE"
+  "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}"
 
 echo "Generating clientset for ${GROUPS_WITH_VERSIONS} at ${OUTPUT_PKG}/${CLIENTSET_PKG_NAME:-clientset}"
 go run k8s.io/code-generator/cmd/client-gen \
   --clientset-name versioned \
   --input-base "" \
   --input "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}" \
-  --output-package "${OUTPUT_PKG}/clientset" \
+  --output-pkg "${OUTPUT_PKG}/clientset" \
   --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
-  --output-base "$OUTPUT_BASE"
+  --output-dir "${OUTPUT_DIR}/clientset"
 
 echo "Generating listers for ${GROUPS_WITH_VERSIONS} at ${OUTPUT_PKG}/listers"
 go run k8s.io/code-generator/cmd/lister-gen \
-  --input-dirs "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}" \
-  --output-package "${OUTPUT_PKG}/listers" \
+  --output-pkg "${OUTPUT_PKG}/listers" \
   --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
-  --output-base "$OUTPUT_BASE"
+  --output-dir "${OUTPUT_DIR}/listers" \
+  "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}"
 
 echo "Generating informers for ${GROUPS_WITH_VERSIONS} at ${OUTPUT_PKG}/informers"
 go run k8s.io/code-generator/cmd/informer-gen \
-  --input-dirs "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}" \
   --versioned-clientset-package "${OUTPUT_PKG}/${CLIENTSET_PKG_NAME:-clientset}/${CLIENTSET_NAME_VERSIONED:-versioned}" \
   --listers-package "${OUTPUT_PKG}/listers" \
-  --output-package "${OUTPUT_PKG}/informers" \
+  --output-pkg "${OUTPUT_PKG}/informers" \
   --go-header-file "${SCRIPT_ROOT}/hack/boilerplate.go.txt" \
-  --output-base "$OUTPUT_BASE"
-
-# hack to make the generated code work with Go module based projects
-cp -r "$OUTPUT_BASE/$GOPKG/pkg/apis" ./pkg
-cp -r "$OUTPUT_BASE/$GOPKG/pkg/client" ./pkg
-rm -rf "${OUTPUT_BASE:?}${SRC}"
+  --output-dir "${OUTPUT_DIR}/informers" \
+  "${APIS_PKG}/${CUSTOM_RESOURCE_NAME}/${CUSTOM_RESOURCE_VERSION}"

pkg/apis/zalando.org/v1/types.go

@@ -6,6 +6,13 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
+// ScalingScheduler is an interface that represents a ScalingSchedule resource,
+// namespaced or cluster wide.
+type ScalingScheduler interface {
+	Identifier() string
+	ResourceSpec() ScalingScheduleSpec
+}
+
 // +genclient
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
 // +kubebuilder:object:root=true
@@ -25,6 +32,17 @@ type ScalingSchedule struct {
 	Status ScalingScheduleStatus `json:"status"`
 }
 
+// Identifier returns the namespaced scalingScale Identifier in the format
+// `<namespace>/<name>`.
+func (s *ScalingSchedule) Identifier() string {
+	return s.ObjectMeta.Namespace + "/" + s.ObjectMeta.Name
+}
+
+// ResourceSpec returns the ScalingScheduleSpec of the ScalingSchedule.
+func (s *ScalingSchedule) ResourceSpec() ScalingScheduleSpec {
+	return s.Spec
+}
+
 // +genclient
 // +genclient:nonNamespaced
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
@@ -46,6 +64,17 @@ type ClusterScalingSchedule struct {
 	Status ScalingScheduleStatus `json:"status"`
 }
 
+// Identifier returns the cluster scalingScale Identifier in the format
+// `<name>`.
+func (s *ClusterScalingSchedule) Identifier() string {
+	return s.ObjectMeta.Name
+}
+
+// ResourceSpec returns the ScalingScheduleSpec of the ClusterScalingSchedule.
+func (s *ClusterScalingSchedule) ResourceSpec() ScalingScheduleSpec {
+	return s.Spec
+}
+
 // ScalingScheduleSpec is the spec part of the ScalingSchedule.
 // +k8s:deepcopy-gen=true
 type ScalingScheduleSpec struct {

pkg/client/clientset/versioned/fake/clientset_generated.go

@@ -31,8 +31,12 @@ import (
 
 // NewSimpleClientset returns a clientset that will respond with the provided objects.
 // It's backed by a very simple object tracker that processes creates, updates and deletions as-is,
-// without applying any validations and/or defaults. It shouldn't be considered a replacement
+// without applying any field management, validations and/or defaults. It shouldn't be considered a replacement
 // for a real clientset and is mostly useful in simple unit tests.
+//
+// DEPRECATED: NewClientset replaces this with support for field management, which significantly improves
+// server side apply testing. NewClientset is only available when apply configurations are generated (e.g.
+// via --with-applyconfig).
 func NewSimpleClientset(objects ...runtime.Object) *Clientset {
 	o := testing.NewObjectTracker(scheme, codecs.UniversalDecoder())
 	for _, obj := range objects {

pkg/client/clientset/versioned/typed/zalando.org/v1/clusterscalingschedule.go

@@ -20,14 +20,13 @@ package v1
 
 import (
 	"context"
-	"time"
 
 	v1 "github.com/zalando-incubator/kube-metrics-adapter/pkg/apis/zalando.org/v1"
 	scheme "github.com/zalando-incubator/kube-metrics-adapter/pkg/client/clientset/versioned/scheme"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	types "k8s.io/apimachinery/pkg/types"
 	watch "k8s.io/apimachinery/pkg/watch"
-	rest "k8s.io/client-go/rest"
+	gentype "k8s.io/client-go/gentype"
 )
 
 // ClusterScalingSchedulesGetter has a method to return a ClusterScalingScheduleInterface.
@@ -40,6 +39,7 @@ type ClusterScalingSchedulesGetter interface {
 type ClusterScalingScheduleInterface interface {
 	Create(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.CreateOptions) (*v1.ClusterScalingSchedule, error)
 	Update(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (*v1.ClusterScalingSchedule, error)
+	// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
 	UpdateStatus(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (*v1.ClusterScalingSchedule, error)
 	Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error
 	DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error
@@ -52,133 +52,18 @@ type ClusterScalingScheduleInterface interface {
 
 // clusterScalingSchedules implements ClusterScalingScheduleInterface
 type clusterScalingSchedules struct {
-	client rest.Interface
+	*gentype.ClientWithList[*v1.ClusterScalingSchedule, *v1.ClusterScalingScheduleList]
 }
 
 // newClusterScalingSchedules returns a ClusterScalingSchedules
 func newClusterScalingSchedules(c *ZalandoV1Client) *clusterScalingSchedules {
 	return &clusterScalingSchedules{
-		client: c.RESTClient(),
+		gentype.NewClientWithList[*v1.ClusterScalingSchedule, *v1.ClusterScalingScheduleList](
+			"clusterscalingschedules",
+			c.RESTClient(),
+			scheme.ParameterCodec,
+			"",
+			func() *v1.ClusterScalingSchedule { return &v1.ClusterScalingSchedule{} },
+			func() *v1.ClusterScalingScheduleList { return &v1.ClusterScalingScheduleList{} }),
 	}
 }
-
-// Get takes name of the clusterScalingSchedule, and returns the corresponding clusterScalingSchedule object, and an error if there is any.
-func (c *clusterScalingSchedules) Get(ctx context.Context, name string, options metav1.GetOptions) (result *v1.ClusterScalingSchedule, err error) {
-	result = &v1.ClusterScalingSchedule{}
-	err = c.client.Get().
-		Resource("clusterscalingschedules").
-		Name(name).
-		VersionedParams(&options, scheme.ParameterCodec).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// List takes label and field selectors, and returns the list of ClusterScalingSchedules that match those selectors.
-func (c *clusterScalingSchedules) List(ctx context.Context, opts metav1.ListOptions) (result *v1.ClusterScalingScheduleList, err error) {
-	var timeout time.Duration
-	if opts.TimeoutSeconds != nil {
-		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
-	}
-	result = &v1.ClusterScalingScheduleList{}
-	err = c.client.Get().
-		Resource("clusterscalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Watch returns a watch.Interface that watches the requested clusterScalingSchedules.
-func (c *clusterScalingSchedules) Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
-	var timeout time.Duration
-	if opts.TimeoutSeconds != nil {
-		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
-	}
-	opts.Watch = true
-	return c.client.Get().
-		Resource("clusterscalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Watch(ctx)
-}
-
-// Create takes the representation of a clusterScalingSchedule and creates it.  Returns the server's representation of the clusterScalingSchedule, and an error, if there is any.
-func (c *clusterScalingSchedules) Create(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.CreateOptions) (result *v1.ClusterScalingSchedule, err error) {
-	result = &v1.ClusterScalingSchedule{}
-	err = c.client.Post().
-		Resource("clusterscalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(clusterScalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Update takes the representation of a clusterScalingSchedule and updates it. Returns the server's representation of the clusterScalingSchedule, and an error, if there is any.
-func (c *clusterScalingSchedules) Update(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (result *v1.ClusterScalingSchedule, err error) {
-	result = &v1.ClusterScalingSchedule{}
-	err = c.client.Put().
-		Resource("clusterscalingschedules").
-		Name(clusterScalingSchedule.Name).
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(clusterScalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// UpdateStatus was generated because the type contains a Status member.
-// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-func (c *clusterScalingSchedules) UpdateStatus(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (result *v1.ClusterScalingSchedule, err error) {
-	result = &v1.ClusterScalingSchedule{}
-	err = c.client.Put().
-		Resource("clusterscalingschedules").
-		Name(clusterScalingSchedule.Name).
-		SubResource("status").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(clusterScalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Delete takes name of the clusterScalingSchedule and deletes it. Returns an error if one occurs.
-func (c *clusterScalingSchedules) Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error {
-	return c.client.Delete().
-		Resource("clusterscalingschedules").
-		Name(name).
-		Body(&opts).
-		Do(ctx).
-		Error()
-}
-
-// DeleteCollection deletes a collection of objects.
-func (c *clusterScalingSchedules) DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error {
-	var timeout time.Duration
-	if listOpts.TimeoutSeconds != nil {
-		timeout = time.Duration(*listOpts.TimeoutSeconds) * time.Second
-	}
-	return c.client.Delete().
-		Resource("clusterscalingschedules").
-		VersionedParams(&listOpts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Body(&opts).
-		Do(ctx).
-		Error()
-}
-
-// Patch applies the patch and returns the patched clusterScalingSchedule.
-func (c *clusterScalingSchedules) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.ClusterScalingSchedule, err error) {
-	result = &v1.ClusterScalingSchedule{}
-	err = c.client.Patch(pt).
-		Resource("clusterscalingschedules").
-		Name(name).
-		SubResource(subresources...).
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(data).
-		Do(ctx).
-		Into(result)
-	return
-}

pkg/client/clientset/versioned/typed/zalando.org/v1/fake/fake_clusterscalingschedule.go

@@ -40,20 +40,22 @@ var clusterscalingschedulesKind = v1.SchemeGroupVersion.WithKind("ClusterScaling
 
 // Get takes name of the clusterScalingSchedule, and returns the corresponding clusterScalingSchedule object, and an error if there is any.
 func (c *FakeClusterScalingSchedules) Get(ctx context.Context, name string, options metav1.GetOptions) (result *v1.ClusterScalingSchedule, err error) {
+	emptyResult := &v1.ClusterScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootGetAction(clusterscalingschedulesResource, name), &v1.ClusterScalingSchedule{})
+		Invokes(testing.NewRootGetActionWithOptions(clusterscalingschedulesResource, name, options), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ClusterScalingSchedule), err
 }
 
 // List takes label and field selectors, and returns the list of ClusterScalingSchedules that match those selectors.
 func (c *FakeClusterScalingSchedules) List(ctx context.Context, opts metav1.ListOptions) (result *v1.ClusterScalingScheduleList, err error) {
+	emptyResult := &v1.ClusterScalingScheduleList{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootListAction(clusterscalingschedulesResource, clusterscalingschedulesKind, opts), &v1.ClusterScalingScheduleList{})
+		Invokes(testing.NewRootListActionWithOptions(clusterscalingschedulesResource, clusterscalingschedulesKind, opts), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 
 	label, _, _ := testing.ExtractFromListOptions(opts)
@@ -72,36 +74,39 @@ func (c *FakeClusterScalingSchedules) List(ctx context.Context, opts metav1.List
 // Watch returns a watch.Interface that watches the requested clusterScalingSchedules.
 func (c *FakeClusterScalingSchedules) Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
 	return c.Fake.
-		InvokesWatch(testing.NewRootWatchAction(clusterscalingschedulesResource, opts))
+		InvokesWatch(testing.NewRootWatchActionWithOptions(clusterscalingschedulesResource, opts))
 }
 
 // Create takes the representation of a clusterScalingSchedule and creates it.  Returns the server's representation of the clusterScalingSchedule, and an error, if there is any.
 func (c *FakeClusterScalingSchedules) Create(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.CreateOptions) (result *v1.ClusterScalingSchedule, err error) {
+	emptyResult := &v1.ClusterScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootCreateAction(clusterscalingschedulesResource, clusterScalingSchedule), &v1.ClusterScalingSchedule{})
+		Invokes(testing.NewRootCreateActionWithOptions(clusterscalingschedulesResource, clusterScalingSchedule, opts), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ClusterScalingSchedule), err
 }
 
 // Update takes the representation of a clusterScalingSchedule and updates it. Returns the server's representation of the clusterScalingSchedule, and an error, if there is any.
 func (c *FakeClusterScalingSchedules) Update(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (result *v1.ClusterScalingSchedule, err error) {
+	emptyResult := &v1.ClusterScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootUpdateAction(clusterscalingschedulesResource, clusterScalingSchedule), &v1.ClusterScalingSchedule{})
+		Invokes(testing.NewRootUpdateActionWithOptions(clusterscalingschedulesResource, clusterScalingSchedule, opts), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ClusterScalingSchedule), err
 }
 
 // UpdateStatus was generated because the type contains a Status member.
 // Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-func (c *FakeClusterScalingSchedules) UpdateStatus(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (*v1.ClusterScalingSchedule, error) {
+func (c *FakeClusterScalingSchedules) UpdateStatus(ctx context.Context, clusterScalingSchedule *v1.ClusterScalingSchedule, opts metav1.UpdateOptions) (result *v1.ClusterScalingSchedule, err error) {
+	emptyResult := &v1.ClusterScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootUpdateSubresourceAction(clusterscalingschedulesResource, "status", clusterScalingSchedule), &v1.ClusterScalingSchedule{})
+		Invokes(testing.NewRootUpdateSubresourceActionWithOptions(clusterscalingschedulesResource, "status", clusterScalingSchedule, opts), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ClusterScalingSchedule), err
 }
@@ -115,7 +120,7 @@ func (c *FakeClusterScalingSchedules) Delete(ctx context.Context, name string, o
 
 // DeleteCollection deletes a collection of objects.
 func (c *FakeClusterScalingSchedules) DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error {
-	action := testing.NewRootDeleteCollectionAction(clusterscalingschedulesResource, listOpts)
+	action := testing.NewRootDeleteCollectionActionWithOptions(clusterscalingschedulesResource, opts, listOpts)
 
 	_, err := c.Fake.Invokes(action, &v1.ClusterScalingScheduleList{})
 	return err
@@ -123,10 +128,11 @@ func (c *FakeClusterScalingSchedules) DeleteCollection(ctx context.Context, opts
 
 // Patch applies the patch and returns the patched clusterScalingSchedule.
 func (c *FakeClusterScalingSchedules) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.ClusterScalingSchedule, err error) {
+	emptyResult := &v1.ClusterScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewRootPatchSubresourceAction(clusterscalingschedulesResource, name, pt, data, subresources...), &v1.ClusterScalingSchedule{})
+		Invokes(testing.NewRootPatchSubresourceActionWithOptions(clusterscalingschedulesResource, name, pt, data, opts, subresources...), emptyResult)
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ClusterScalingSchedule), err
 }

pkg/client/clientset/versioned/typed/zalando.org/v1/fake/fake_scalingschedule.go

@@ -41,22 +41,24 @@ var scalingschedulesKind = v1.SchemeGroupVersion.WithKind("ScalingSchedule")
 
 // Get takes name of the scalingSchedule, and returns the corresponding scalingSchedule object, and an error if there is any.
 func (c *FakeScalingSchedules) Get(ctx context.Context, name string, options metav1.GetOptions) (result *v1.ScalingSchedule, err error) {
+	emptyResult := &v1.ScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewGetAction(scalingschedulesResource, c.ns, name), &v1.ScalingSchedule{})
+		Invokes(testing.NewGetActionWithOptions(scalingschedulesResource, c.ns, name, options), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ScalingSchedule), err
 }
 
 // List takes label and field selectors, and returns the list of ScalingSchedules that match those selectors.
 func (c *FakeScalingSchedules) List(ctx context.Context, opts metav1.ListOptions) (result *v1.ScalingScheduleList, err error) {
+	emptyResult := &v1.ScalingScheduleList{}
 	obj, err := c.Fake.
-		Invokes(testing.NewListAction(scalingschedulesResource, scalingschedulesKind, c.ns, opts), &v1.ScalingScheduleList{})
+		Invokes(testing.NewListActionWithOptions(scalingschedulesResource, scalingschedulesKind, c.ns, opts), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 
 	label, _, _ := testing.ExtractFromListOptions(opts)
@@ -75,40 +77,43 @@ func (c *FakeScalingSchedules) List(ctx context.Context, opts metav1.ListOptions
 // Watch returns a watch.Interface that watches the requested scalingSchedules.
 func (c *FakeScalingSchedules) Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
 	return c.Fake.
-		InvokesWatch(testing.NewWatchAction(scalingschedulesResource, c.ns, opts))
+		InvokesWatch(testing.NewWatchActionWithOptions(scalingschedulesResource, c.ns, opts))
 
 }
 
 // Create takes the representation of a scalingSchedule and creates it.  Returns the server's representation of the scalingSchedule, and an error, if there is any.
 func (c *FakeScalingSchedules) Create(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.CreateOptions) (result *v1.ScalingSchedule, err error) {
+	emptyResult := &v1.ScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewCreateAction(scalingschedulesResource, c.ns, scalingSchedule), &v1.ScalingSchedule{})
+		Invokes(testing.NewCreateActionWithOptions(scalingschedulesResource, c.ns, scalingSchedule, opts), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ScalingSchedule), err
 }
 
 // Update takes the representation of a scalingSchedule and updates it. Returns the server's representation of the scalingSchedule, and an error, if there is any.
 func (c *FakeScalingSchedules) Update(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (result *v1.ScalingSchedule, err error) {
+	emptyResult := &v1.ScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewUpdateAction(scalingschedulesResource, c.ns, scalingSchedule), &v1.ScalingSchedule{})
+		Invokes(testing.NewUpdateActionWithOptions(scalingschedulesResource, c.ns, scalingSchedule, opts), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ScalingSchedule), err
 }
 
 // UpdateStatus was generated because the type contains a Status member.
 // Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-func (c *FakeScalingSchedules) UpdateStatus(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (*v1.ScalingSchedule, error) {
+func (c *FakeScalingSchedules) UpdateStatus(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (result *v1.ScalingSchedule, err error) {
+	emptyResult := &v1.ScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewUpdateSubresourceAction(scalingschedulesResource, "status", c.ns, scalingSchedule), &v1.ScalingSchedule{})
+		Invokes(testing.NewUpdateSubresourceActionWithOptions(scalingschedulesResource, "status", c.ns, scalingSchedule, opts), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ScalingSchedule), err
 }
@@ -123,7 +128,7 @@ func (c *FakeScalingSchedules) Delete(ctx context.Context, name string, opts met
 
 // DeleteCollection deletes a collection of objects.
 func (c *FakeScalingSchedules) DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error {
-	action := testing.NewDeleteCollectionAction(scalingschedulesResource, c.ns, listOpts)
+	action := testing.NewDeleteCollectionActionWithOptions(scalingschedulesResource, c.ns, opts, listOpts)
 
 	_, err := c.Fake.Invokes(action, &v1.ScalingScheduleList{})
 	return err
@@ -131,11 +136,12 @@ func (c *FakeScalingSchedules) DeleteCollection(ctx context.Context, opts metav1
 
 // Patch applies the patch and returns the patched scalingSchedule.
 func (c *FakeScalingSchedules) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.ScalingSchedule, err error) {
+	emptyResult := &v1.ScalingSchedule{}
 	obj, err := c.Fake.
-		Invokes(testing.NewPatchSubresourceAction(scalingschedulesResource, c.ns, name, pt, data, subresources...), &v1.ScalingSchedule{})
+		Invokes(testing.NewPatchSubresourceActionWithOptions(scalingschedulesResource, c.ns, name, pt, data, opts, subresources...), emptyResult)
 
 	if obj == nil {
-		return nil, err
+		return emptyResult, err
 	}
 	return obj.(*v1.ScalingSchedule), err
 }

pkg/client/clientset/versioned/typed/zalando.org/v1/scalingschedule.go

@@ -20,14 +20,13 @@ package v1
 
 import (
 	"context"
-	"time"
 
 	v1 "github.com/zalando-incubator/kube-metrics-adapter/pkg/apis/zalando.org/v1"
 	scheme "github.com/zalando-incubator/kube-metrics-adapter/pkg/client/clientset/versioned/scheme"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	types "k8s.io/apimachinery/pkg/types"
 	watch "k8s.io/apimachinery/pkg/watch"
-	rest "k8s.io/client-go/rest"
+	gentype "k8s.io/client-go/gentype"
 )
 
 // ScalingSchedulesGetter has a method to return a ScalingScheduleInterface.
@@ -40,6 +39,7 @@ type ScalingSchedulesGetter interface {
 type ScalingScheduleInterface interface {
 	Create(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.CreateOptions) (*v1.ScalingSchedule, error)
 	Update(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (*v1.ScalingSchedule, error)
+	// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
 	UpdateStatus(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (*v1.ScalingSchedule, error)
 	Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error
 	DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error
@@ -52,144 +52,18 @@ type ScalingScheduleInterface interface {
 
 // scalingSchedules implements ScalingScheduleInterface
 type scalingSchedules struct {
-	client rest.Interface
-	ns     string
+	*gentype.ClientWithList[*v1.ScalingSchedule, *v1.ScalingScheduleList]
 }
 
 // newScalingSchedules returns a ScalingSchedules
 func newScalingSchedules(c *ZalandoV1Client, namespace string) *scalingSchedules {
 	return &scalingSchedules{
-		client: c.RESTClient(),
-		ns:     namespace,
+		gentype.NewClientWithList[*v1.ScalingSchedule, *v1.ScalingScheduleList](
+			"scalingschedules",
+			c.RESTClient(),
+			scheme.ParameterCodec,
+			namespace,
+			func() *v1.ScalingSchedule { return &v1.ScalingSchedule{} },
+			func() *v1.ScalingScheduleList { return &v1.ScalingScheduleList{} }),
 	}
 }
-
-// Get takes name of the scalingSchedule, and returns the corresponding scalingSchedule object, and an error if there is any.
-func (c *scalingSchedules) Get(ctx context.Context, name string, options metav1.GetOptions) (result *v1.ScalingSchedule, err error) {
-	result = &v1.ScalingSchedule{}
-	err = c.client.Get().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		Name(name).
-		VersionedParams(&options, scheme.ParameterCodec).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// List takes label and field selectors, and returns the list of ScalingSchedules that match those selectors.
-func (c *scalingSchedules) List(ctx context.Context, opts metav1.ListOptions) (result *v1.ScalingScheduleList, err error) {
-	var timeout time.Duration
-	if opts.TimeoutSeconds != nil {
-		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
-	}
-	result = &v1.ScalingScheduleList{}
-	err = c.client.Get().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Watch returns a watch.Interface that watches the requested scalingSchedules.
-func (c *scalingSchedules) Watch(ctx context.Context, opts metav1.ListOptions) (watch.Interface, error) {
-	var timeout time.Duration
-	if opts.TimeoutSeconds != nil {
-		timeout = time.Duration(*opts.TimeoutSeconds) * time.Second
-	}
-	opts.Watch = true
-	return c.client.Get().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Watch(ctx)
-}
-
-// Create takes the representation of a scalingSchedule and creates it.  Returns the server's representation of the scalingSchedule, and an error, if there is any.
-func (c *scalingSchedules) Create(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.CreateOptions) (result *v1.ScalingSchedule, err error) {
-	result = &v1.ScalingSchedule{}
-	err = c.client.Post().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(scalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Update takes the representation of a scalingSchedule and updates it. Returns the server's representation of the scalingSchedule, and an error, if there is any.
-func (c *scalingSchedules) Update(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (result *v1.ScalingSchedule, err error) {
-	result = &v1.ScalingSchedule{}
-	err = c.client.Put().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		Name(scalingSchedule.Name).
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(scalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// UpdateStatus was generated because the type contains a Status member.
-// Add a +genclient:noStatus comment above the type to avoid generating UpdateStatus().
-func (c *scalingSchedules) UpdateStatus(ctx context.Context, scalingSchedule *v1.ScalingSchedule, opts metav1.UpdateOptions) (result *v1.ScalingSchedule, err error) {
-	result = &v1.ScalingSchedule{}
-	err = c.client.Put().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		Name(scalingSchedule.Name).
-		SubResource("status").
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(scalingSchedule).
-		Do(ctx).
-		Into(result)
-	return
-}
-
-// Delete takes name of the scalingSchedule and deletes it. Returns an error if one occurs.
-func (c *scalingSchedules) Delete(ctx context.Context, name string, opts metav1.DeleteOptions) error {
-	return c.client.Delete().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		Name(name).
-		Body(&opts).
-		Do(ctx).
-		Error()
-}
-
-// DeleteCollection deletes a collection of objects.
-func (c *scalingSchedules) DeleteCollection(ctx context.Context, opts metav1.DeleteOptions, listOpts metav1.ListOptions) error {
-	var timeout time.Duration
-	if listOpts.TimeoutSeconds != nil {
-		timeout = time.Duration(*listOpts.TimeoutSeconds) * time.Second
-	}
-	return c.client.Delete().
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		VersionedParams(&listOpts, scheme.ParameterCodec).
-		Timeout(timeout).
-		Body(&opts).
-		Do(ctx).
-		Error()
-}
-
-// Patch applies the patch and returns the patched scalingSchedule.
-func (c *scalingSchedules) Patch(ctx context.Context, name string, pt types.PatchType, data []byte, opts metav1.PatchOptions, subresources ...string) (result *v1.ScalingSchedule, err error) {
-	result = &v1.ScalingSchedule{}
-	err = c.client.Patch(pt).
-		Namespace(c.ns).
-		Resource("scalingschedules").
-		Name(name).
-		SubResource(subresources...).
-		VersionedParams(&opts, scheme.ParameterCodec).
-		Body(data).
-		Do(ctx).
-		Into(result)
-	return
-}

pkg/client/informers/externalversions/factory.go

@@ -42,6 +42,7 @@ type sharedInformerFactory struct {
 	lock             sync.Mutex
 	defaultResync    time.Duration
 	customResync     map[reflect.Type]time.Duration
+	transform        cache.TransformFunc
 
 	informers map[reflect.Type]cache.SharedIndexInformer
 	// startedInformers is used for tracking which informers have been started.
@@ -80,6 +81,14 @@ func WithNamespace(namespace string) SharedInformerOption {
 	}
 }
 
+// WithTransform sets a transform on all informers.
+func WithTransform(transform cache.TransformFunc) SharedInformerOption {
+	return func(factory *sharedInformerFactory) *sharedInformerFactory {
+		factory.transform = transform
+		return factory
+	}
+}
+
 // NewSharedInformerFactory constructs a new instance of sharedInformerFactory for all namespaces.
 func NewSharedInformerFactory(client versioned.Interface, defaultResync time.Duration) SharedInformerFactory {
 	return NewSharedInformerFactoryWithOptions(client, defaultResync)
@@ -184,6 +193,7 @@ func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internal
 	}
 
 	informer = newFunc(f.client, resyncPeriod)
+	informer.SetTransform(f.transform)
 	f.informers[informerType] = informer
 
 	return informer
@@ -218,6 +228,7 @@ type SharedInformerFactory interface {
 
 	// Start initializes all requested informers. They are handled in goroutines
 	// which run until the stop channel gets closed.
+	// Warning: Start does not block. When run in a go-routine, it will race with a later WaitForCacheSync.
 	Start(stopCh <-chan struct{})
 
 	// Shutdown marks a factory as shutting down. At that point no new

pkg/client/listers/zalando.org/v1/clusterscalingschedule.go

@@ -20,8 +20,8 @@ package v1
 
 import (
 	v1 "github.com/zalando-incubator/kube-metrics-adapter/pkg/apis/zalando.org/v1"
-	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/listers"
 	"k8s.io/client-go/tools/cache"
 )
 
@@ -39,30 +39,10 @@ type ClusterScalingScheduleLister interface {
 
 // clusterScalingScheduleLister implements the ClusterScalingScheduleLister interface.
 type clusterScalingScheduleLister struct {
-	indexer cache.Indexer
+	listers.ResourceIndexer[*v1.ClusterScalingSchedule]
 }
 
 // NewClusterScalingScheduleLister returns a new ClusterScalingScheduleLister.
 func NewClusterScalingScheduleLister(indexer cache.Indexer) ClusterScalingScheduleLister {
-	return &clusterScalingScheduleLister{indexer: indexer}
-}
-
-// List lists all ClusterScalingSchedules in the indexer.
-func (s *clusterScalingScheduleLister) List(selector labels.Selector) (ret []*v1.ClusterScalingSchedule, err error) {
-	err = cache.ListAll(s.indexer, selector, func(m interface{}) {
-		ret = append(ret, m.(*v1.ClusterScalingSchedule))
-	})
-	return ret, err
-}
-
-// Get retrieves the ClusterScalingSchedule from the index for a given name.
-func (s *clusterScalingScheduleLister) Get(name string) (*v1.ClusterScalingSchedule, error) {
-	obj, exists, err := s.indexer.GetByKey(name)
-	if err != nil {
-		return nil, err
-	}
-	if !exists {
-		return nil, errors.NewNotFound(v1.Resource("clusterscalingschedule"), name)
-	}
-	return obj.(*v1.ClusterScalingSchedule), nil
+	return &clusterScalingScheduleLister{listers.New[*v1.ClusterScalingSchedule](indexer, v1.Resource("clusterscalingschedule"))}
 }

pkg/client/listers/zalando.org/v1/scalingschedule.go

@@ -20,8 +20,8 @@ package v1
 
 import (
 	v1 "github.com/zalando-incubator/kube-metrics-adapter/pkg/apis/zalando.org/v1"
-	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/client-go/listers"
 	"k8s.io/client-go/tools/cache"
 )
 
@@ -38,25 +38,17 @@ type ScalingScheduleLister interface {
 
 // scalingScheduleLister implements the ScalingScheduleLister interface.
 type scalingScheduleLister struct {
-	indexer cache.Indexer
+	listers.ResourceIndexer[*v1.ScalingSchedule]
 }
 
 // NewScalingScheduleLister returns a new ScalingScheduleLister.
 func NewScalingScheduleLister(indexer cache.Indexer) ScalingScheduleLister {
-	return &scalingScheduleLister{indexer: indexer}
-}
-
-// List lists all ScalingSchedules in the indexer.
-func (s *scalingScheduleLister) List(selector labels.Selector) (ret []*v1.ScalingSchedule, err error) {
-	err = cache.ListAll(s.indexer, selector, func(m interface{}) {
-		ret = append(ret, m.(*v1.ScalingSchedule))
-	})
-	return ret, err
+	return &scalingScheduleLister{listers.New[*v1.ScalingSchedule](indexer, v1.Resource("scalingschedule"))}
 }
 
 // ScalingSchedules returns an object that can list and get ScalingSchedules.
 func (s *scalingScheduleLister) ScalingSchedules(namespace string) ScalingScheduleNamespaceLister {
-	return scalingScheduleNamespaceLister{indexer: s.indexer, namespace: namespace}
+	return scalingScheduleNamespaceLister{listers.NewNamespaced[*v1.ScalingSchedule](s.ResourceIndexer, namespace)}
 }
 
 // ScalingScheduleNamespaceLister helps list and get ScalingSchedules.
@@ -74,26 +66,5 @@ type ScalingScheduleNamespaceLister interface {
 // scalingScheduleNamespaceLister implements the ScalingScheduleNamespaceLister
 // interface.
 type scalingScheduleNamespaceLister struct {
-	indexer   cache.Indexer
-	namespace string
-}
-
-// List lists all ScalingSchedules in the indexer for a given namespace.
-func (s scalingScheduleNamespaceLister) List(selector labels.Selector) (ret []*v1.ScalingSchedule, err error) {
-	err = cache.ListAllByNamespace(s.indexer, s.namespace, selector, func(m interface{}) {
-		ret = append(ret, m.(*v1.ScalingSchedule))
-	})
-	return ret, err
-}
-
-// Get retrieves the ScalingSchedule from the indexer for a given namespace and name.
-func (s scalingScheduleNamespaceLister) Get(name string) (*v1.ScalingSchedule, error) {
-	obj, exists, err := s.indexer.GetByKey(s.namespace + "/" + name)
-	if err != nil {
-		return nil, err
-	}
-	if !exists {
-		return nil, errors.NewNotFound(v1.Resource("scalingschedule"), name)
-	}
-	return obj.(*v1.ScalingSchedule), nil
+	listers.ResourceIndexer[*v1.ScalingSchedule]
 }

pkg/collector/aws_collector.go

@@ -1,14 +1,14 @@
 package collector
 
 import (
+	"context"
 	"fmt"
 	"strconv"
 	"time"
 
-	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/session"
-	"github.com/aws/aws-sdk-go/service/sqs"
-	"github.com/aws/aws-sdk-go/service/sqs/sqsiface"
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/service/sqs"
+	"github.com/aws/aws-sdk-go-v2/service/sqs/types"
 	autoscalingv2 "k8s.io/api/autoscaling/v2"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -22,22 +22,26 @@ const (
 )
 
 type AWSCollectorPlugin struct {
-	sessions map[string]*session.Session
+	configs map[string]aws.Config
 }
 
-func NewAWSCollectorPlugin(sessions map[string]*session.Session) *AWSCollectorPlugin {
+func NewAWSCollectorPlugin(configs map[string]aws.Config) *AWSCollectorPlugin {
 	return &AWSCollectorPlugin{
-		sessions: sessions,
+		configs: configs,
 	}
 }
 
 // NewCollector initializes a new skipper collector from the specified HPA.
-func (c *AWSCollectorPlugin) NewCollector(hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
-	return NewAWSSQSCollector(c.sessions, hpa, config, interval)
+func (c *AWSCollectorPlugin) NewCollector(ctx context.Context, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
+	return NewAWSSQSCollector(ctx, c.configs, hpa, config, interval)
+}
+
+type sqsiface interface {
+	GetQueueAttributes(ctx context.Context, params *sqs.GetQueueAttributesInput, optFns ...func(*sqs.Options)) (*sqs.GetQueueAttributesOutput, error)
 }
 
 type AWSSQSCollector struct {
-	sqs        sqsiface.SQSAPI
+	sqs        sqsiface
 	interval   time.Duration
 	queueURL   string
 	queueName  string
@@ -46,7 +50,7 @@ type AWSSQSCollector struct {
 	metricType autoscalingv2.MetricSourceType
 }
 
-func NewAWSSQSCollector(sessions map[string]*session.Session, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (*AWSSQSCollector, error) {
+func NewAWSSQSCollector(ctx context.Context, configs map[string]aws.Config, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (*AWSSQSCollector, error) {
 	if config.Metric.Selector == nil {
 		return nil, fmt.Errorf("selector for queue is not specified")
 	}
@@ -60,17 +64,17 @@ func NewAWSSQSCollector(sessions map[string]*session.Session, hpa *autoscalingv2
 		return nil, fmt.Errorf("sqs queue region is not specified on metric")
 	}
 
-	session, ok := sessions[region]
+	cfg, ok := configs[region]
 	if !ok {
 		return nil, fmt.Errorf("the metric region: %s is not configured", region)
 	}
 
-	service := sqs.New(session)
+	service := sqs.NewFromConfig(cfg)
 	params := &sqs.GetQueueUrlInput{
 		QueueName: aws.String(name),
 	}
 
-	resp, err := service.GetQueueUrl(params)
+	resp, err := service.GetQueueUrl(context.TODO(), params)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get queue URL for queue '%s': %v", name, err)
 	}
@@ -78,7 +82,7 @@ func NewAWSSQSCollector(sessions map[string]*session.Session, hpa *autoscalingv2
 	return &AWSSQSCollector{
 		sqs:        service,
 		interval:   interval,
-		queueURL:   aws.StringValue(resp.QueueUrl),
+		queueURL:   aws.ToString(resp.QueueUrl),
 		queueName:  name,
 		namespace:  hpa.Namespace,
 		metric:     config.Metric,
@@ -86,19 +90,19 @@ func NewAWSSQSCollector(sessions map[string]*session.Session, hpa *autoscalingv2
 	}, nil
 }
 
-func (c *AWSSQSCollector) GetMetrics() ([]CollectedMetric, error) {
+func (c *AWSSQSCollector) GetMetrics(ctx context.Context) ([]CollectedMetric, error) {
 	params := &sqs.GetQueueAttributesInput{
 		QueueUrl:       aws.String(c.queueURL),
-		AttributeNames: aws.StringSlice([]string{sqs.QueueAttributeNameApproximateNumberOfMessages}),
+		AttributeNames: []types.QueueAttributeName{types.QueueAttributeNameApproximateNumberOfMessages},
 	}
 
-	resp, err := c.sqs.GetQueueAttributes(params)
+	resp, err := c.sqs.GetQueueAttributes(ctx, params)
 	if err != nil {
 		return nil, err
 	}
 
-	if v, ok := resp.Attributes[sqs.QueueAttributeNameApproximateNumberOfMessages]; ok {
-		i, err := strconv.Atoi(aws.StringValue(v))
+	if v, ok := resp.Attributes[string(types.QueueAttributeNameApproximateNumberOfMessages)]; ok {
+		i, err := strconv.Atoi(v)
 		if err != nil {
 			return nil, err
 		}

pkg/collector/collector.go

@@ -1,6 +1,7 @@
 package collector
 
 import (
+	"context"
 	"fmt"
 	"time"
 
@@ -50,7 +51,7 @@ func NewCollectorFactory() *CollectorFactory {
 }
 
 type CollectorPlugin interface {
-	NewCollector(hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error)
+	NewCollector(ctx context.Context, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error)
 }
 
 type PluginNotFoundError struct {
@@ -120,38 +121,38 @@ func (c *CollectorFactory) RegisterExternalCollector(metrics []string, plugin Co
 	}
 }
 
-func (c *CollectorFactory) NewCollector(hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
+func (c *CollectorFactory) NewCollector(ctx context.Context, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
 	switch config.Type {
 	case autoscalingv2.PodsMetricSourceType:
 		// first try to find a plugin by format
 		if plugin, ok := c.podsPlugins.Named[config.CollectorType]; ok {
-			return plugin.NewCollector(hpa, config, interval)
+			return plugin.NewCollector(ctx, hpa, config, interval)
 		}
 
 		// else try to use the default plugin if set
 		if c.podsPlugins.Any != nil {
-			return c.podsPlugins.Any.NewCollector(hpa, config, interval)
+			return c.podsPlugins.Any.NewCollector(ctx, hpa, config, interval)
 		}
 	case autoscalingv2.ObjectMetricSourceType:
 		// first try to find a plugin by kind
 		if kinds, ok := c.objectPlugins.Named[config.ObjectReference.Kind]; ok {
 			if plugin, ok := kinds.Named[config.CollectorType]; ok {
-				return plugin.NewCollector(hpa, config, interval)
+				return plugin.NewCollector(ctx, hpa, config, interval)
 			}
 
 			if kinds.Any != nil {
-				return kinds.Any.NewCollector(hpa, config, interval)
+				return kinds.Any.NewCollector(ctx, hpa, config, interval)
 			}
 			break
 		}
 
 		// else try to find a default plugin for this kind
 		if plugin, ok := c.objectPlugins.Any.Named[config.CollectorType]; ok {
-			return plugin.NewCollector(hpa, config, interval)
+			return plugin.NewCollector(ctx, hpa, config, interval)
 		}
 
 		if c.objectPlugins.Any.Any != nil {
-			return c.objectPlugins.Any.Any.NewCollector(hpa, config, interval)
+			return c.objectPlugins.Any.Any.NewCollector(ctx, hpa, config, interval)
 		}
 	case autoscalingv2.ExternalMetricSourceType:
 		// First type to get metric type from the `type` label,
@@ -169,7 +170,7 @@ func (c *CollectorFactory) NewCollector(hpa *autoscalingv2.HorizontalPodAutoscal
 		}
 
 		if plugin, ok := c.externalPlugins[pluginKey]; ok {
-			return plugin.NewCollector(hpa, config, interval)
+			return plugin.NewCollector(ctx, hpa, config, interval)
 		}
 	}
 
@@ -189,7 +190,7 @@ type CollectedMetric struct {
 }
 
 type Collector interface {
-	GetMetrics() ([]CollectedMetric, error)
+	GetMetrics(ctx context.Context) ([]CollectedMetric, error)
 	Interval() time.Duration
 }
 

pkg/collector/collector_test.go

@@ -1,6 +1,7 @@
 package collector
 
 import (
+	"context"
 	"testing"
 	"time"
 
@@ -13,7 +14,7 @@ type mockCollectorPlugin struct {
 	Name string
 }
 
-func (c *mockCollectorPlugin) NewCollector(hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
+func (c *mockCollectorPlugin) NewCollector(_ context.Context, hpa *autoscalingv2.HorizontalPodAutoscaler, config *MetricConfig, interval time.Duration) (Collector, error) {
 	return &mockCollector{Name: c.Name}, nil
 }
 
@@ -21,7 +22,7 @@ type mockCollector struct {
 	Name string
 }
 
-func (c *mockCollector) GetMetrics() ([]CollectedMetric, error) {
+func (c *mockCollector) GetMetrics(_ context.Context) ([]CollectedMetric, error) {
 	return nil, nil
 }
 
@@ -114,7 +115,7 @@ func TestNewCollector(t *testing.T) {
 			require.NoError(t, err)
 			require.Len(t, configs, 1)
 
-			collector, err := collectorFactory.NewCollector(tc.hpa, configs[0], 0)
+			collector, err := collectorFactory.NewCollector(context.Background(), tc.hpa, configs[0], 0)
 			if tc.expectedCollector == "" {
 				require.Error(t, err)
 			} else {

pkg/collector/external_rps_collector.go

@@ -1,6 +1,7 @@
 package collector
 
 import (
+	"context"
 	"fmt"
 	"regexp"
 	"strconv"
@@ -48,6 +49,7 @@ func NewExternalRPSCollectorPlugin(
 
 // NewCollector initializes a new skipper collector from the specified HPA.
 func (p *ExternalRPSCollectorPlugin) NewCollector(
+	ctx context.Context,
 	hpa *autoscalingv2.HorizontalPodAutoscaler,
 	config *MetricConfig,
 	interval time.Duration,
@@ -95,7 +97,7 @@ func (p *ExternalRPSCollectorPlugin) NewCollector(
 		),
 	}
 
-	c, err := p.promPlugin.NewCollector(hpa, &confCopy, interval)
+	c, err := p.promPlugin.NewCollector(ctx, hpa, &confCopy, interval)
 	if err != nil {
 		return nil, err
 	}
@@ -107,8 +109,8 @@ func (p *ExternalRPSCollectorPlugin) NewCollector(
 }
 
 // GetMetrics gets hostname metrics from Prometheus
-func (c *ExternalRPSCollector) GetMetrics() ([]CollectedMetric, error) {
-	v, err := c.promCollector.GetMetrics()
+func (c *ExternalRPSCollector) GetMetrics(ctx context.Context) ([]CollectedMetric, error) {
+	v, err := c.promCollector.GetMetrics(ctx)
 	if err != nil {
 		return nil, err
 	}