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feat(deployment)!: configurable init containers and Secret checksum lookup

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The chart-managed init containers were hardcoded inside `deployment.yaml`. Their image, environment, resources,
security context and volume mounts could not be adjusted individually, and custom init containers could only be
prepended or appended as a whole via `preExtraInitContainers`/`postExtraInitContainers`.

The init containers are now rendered from `deployment.initContainers`, an ordered list whose entries either `link` a
chart-managed init container (`initDirectories`, `initAppIni`, `initConfigureGPG`, `initConfigureGitea`) or provide a
free-form `container` definition. This allows custom containers at any position and makes the execution order
explicit. Each linked init container has its own configuration block in `values.yaml` and falls back to
`deployment.gitea.securityContext` and `initContainers.resources` when unset.

To support per-container images, `gitea.image` was split into the generic helper `gitea.image.name`, which renders an
arbitrary `image` dict instead of only `deployment.gitea.image`.

The pod annotations moved from `deployment.yaml` into the new helper `gitea.pod.annotations`. The SHA sum annotations
now also cover user-provided Secrets: their content is unknown to the chart, so the Secret is read from the cluster via
Helm's `lookup` function. Chart-managed Secrets keep using the rendered manifest, because the cluster still holds their
pre-upgrade state during rendering.

Because `lookup` requires `get` permission on Secrets and silently returns nothing during client-side rendering
(`helm template`, `--dry-run`, Argo CD without a live cluster), `addSHASumAnnotation` now defaults to `false`. The
trade-offs are documented in the README so users can make an informed decision.

BREAKING CHANGE: `preExtraInitContainers` and `postExtraInitContainers` have been removed. Add an entry with a
`container` key before or after the linked init containers in `deployment.initContainers` instead.

BREAKING CHANGE: `secrets.<secret>.addSHASumAnnotation` now defaults to `false`. Set it to `true` explicitly to keep
the rollout trigger on Secret changes.

Co-authored-by: Copilot <copilot@github.com>
This commit is contained in:
volker.raschek
2026-09-13 19:11:28 +02:00
co-authored by Copilot
parent c409e201b3
commit e8f3a058ce
15 changed files with 1267 additions and 444 deletions
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templates/gitea/deprecation.yaml
+10
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@@ -85,6 +85,16 @@
{{- fail "`podSecurityContext` does no longer exist. Please refer to the changelog and configure `deployment.securityContext` instead." -}}
{{- end -}}
{{/* POST EXTRA INIT CONTAINERS */}}
{{- if .Values.postExtraInitContainers -}}
{{- fail "`postExtraInitContainers` does no longer exist. Please refer to the changelog and append an entry with a `container` key to `deployment.initContainers` instead." -}}
{{- end -}}
{{/* PRE EXTRA INIT CONTAINERS */}}
{{- if .Values.preExtraInitContainers -}}
{{- fail "`preExtraInitContainers` does no longer exist. Please refer to the changelog and prepend an entry with a `container` key to `deployment.initContainers` instead." -}}
{{- end -}}
{{/* RESOURCES */}}
{{- if .Values.resources -}}
{{- fail "`resources` does no longer exist. Please refer to the changelog and configure `deployment.gitea.resources` instead." -}}