### Description of the change
Checking the existence of the config directory should be done with the directory path itself. Not its parent directory.
This simple fix addresses that by using the config directory for its existence check.
### Benefits
Prior to #337 there was no other way to install this helm chart using the `extraVolumeMounts` setting with these values:
```yaml
replicaCount: %d
extraVolumes:
- name: config-volume
configMap:
name: %s
extraVolumeMounts:
- name: config-volume
mountPath: /data/gitea/templates/custom
```
Without this fix, the Gitea pod would never initialize, and would crashloop with the same error in #296.
### Additional information
Mounting a configMap to `/data/gitea/templates/custom` causes the `/data/gitea` folder to exist even though the `/data/gitea/conf` had not been initialized yet. The initialization script saw that the `/data/gitea` dir existed and exited early without initializing `/data/gitea/conf`.
Co-authored-by: cboin1996 <christianboin@hotmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/310
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Reviewed-by: pat-s <pat-s@noreply.gitea.io>
Co-authored-by: cboin1996 <cboin1996@noreply.gitea.io>
Co-committed-by: cboin1996 <cboin1996@noreply.gitea.io>
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