feat!: replace postgresql-ha with CloudNativePG

The bundled `postgresql-ha` sub-chart was the only HA-ready database option, but it pinned us to a Bitnami chart
whose images are no longer freely distributed, and it bundled repmgr and pgpool into the release. Operating a
Postgres cluster through a Helm release also means the chart has to reimplement failover, backup and upgrade
orchestration that a dedicated operator already solves.

CloudNativePG is the de-facto standard operator for Postgres on Kubernetes and handles instance management,
streaming replication, switchover and rolling upgrades itself. The operator is deliberately *not* part of this
chart: cluster-scoped CRDs and controllers do not belong into an application release and would conflict with an
operator that is already installed. The chart only renders the namespaced `Cluster` resource, so the operator can
be managed independently.

Because the operator cannot be assumed to be present, `cloudnativePG.enabled` defaults to `false`. Existing users
of `postgresql` or an external database are therefore unaffected.

Credentials follow the chart-wide `secrets.*` convention. Only the password is read from a Secret, because
CloudNativePG requires `bootstrap.initdb.database` and `bootstrap.initdb.owner` as literals in the `Cluster` spec
and cannot resolve them from a Secret. The password is injected into the `init-app-ini` container as
`GITEA__database__PASSWD` instead of being written into the generated `app.ini`.

BREAKING CHANGE: The `postgresql-ha` sub-chart and all `postgresql-ha.*` values have been removed. There is no
in-place migration path between the two deployments: dump the database of the old `postgresql-ha` release with
`pg_dump`, remove the `postgresql-ha` values, deploy the chart with `cloudnativePG.enabled=true` and restore the
dump. Setting `postgresql-ha` now fails the release with a pointer to the changelog.

Co-authored-by: Copilot <copilot@github.com>

This commit is contained in:

volker.raschek

2026-10-04 00:18:34 +02:00

co-authored by

Copilot

parent eeacda2a25

commit 1b82a15b7f

23 changed files with 601 additions and 271 deletions

									
										templates/_pods.tpl
									
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				@@ -9,6 +9,11 @@

				checksum/admin: {{ include "gitea.secret.checksum" (list . "admin") }}

				{{- end }}

				{{/* secret - cloudnativePG */}}

				{{- if and .Values.cloudnativePG.enabled .Values.cloudnativePG.credentials.addSHASumAnnotation }}

				checksum/cloudnativePG: {{ include "gitea.secret.checksum" (list . "cloudnativePG") }}

				{{- end }}

				{{/* secret - config */}}

				{{- if and .Values.secrets.config.enabled .Values.secrets.config.addSHASumAnnotation }}

				checksum/config: {{ include "gitea.secret.checksum" (list . "config") }}