Description of the change
Add support for a new value: dnsConfig, to be passed to the statefulset pod template configuration.
Default is {}, and does not change anything from current default pod configuration.
Benefits
Ability to fix some issues encountered with Alpine-based docker images, which may break DNS resolving on some clusters.
In particular, this allows to lower the ndots value, which fixes DNS resolving of FQDNs.
dnsConfig:
options:
- name: ndots
value: "1"
Also, with this setting, one can set other parameters to finely tune DNS configuration for Gitea pods, if needed:
https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-dns-config
Possible drawbacks
None.
Additional information
Some relevant links about the issue this setting allows to fix:
https://stackoverflow.com/questions/65181012/does-alpine-have-known-dns-issue-within-kuberneteshttps://gitlab.alpinelinux.org/alpine/aports/-/issues/9017
Checklist
Parameters are documented in the values.yaml and added to the README.md using readme-generator-for-helm
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/329
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Reviewed-by: luhahn <luhahn@noreply.gitea.io>
Co-authored-by: dek <dek@noreply.gitea.io>
Co-committed-by: dek <dek@noreply.gitea.io>
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