Replaces the three standalone Dockerfiles (openzaak, opennotificaties,
keycloak) with `build.dockerfile_inline` recipes in the compose files, so the
config bake has no separate Dockerfile artifacts to maintain. Behaviour is
identical: each derived image still COPYies its config in.
- oz-init / keycloak / flowable-init: 2-line inline Dockerfiles.
- Open Notificaties needs no bake at all now — nrc-init runs migrations only,
so all NRC services use the plain base image (removes a whole derived image).
Why dockerfile_inline and not `docker cp` into named volumes: docker cp avoids
images entirely but needs `docker compose create`, which podman-compose (the
local dev runtime) does not implement — it would break `make openzaak-up` etc.
locally. dockerfile_inline works on both podman-compose and the CI runner
(verified both: oz-init + keycloak inline builds locally; flowable-init inline
has been green on CI since run 27).
Docs updated: gitea-actions-gotchas.md and openzaak.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Niek Otten
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