`containers/valkey/container.py` builds Alpine 3.22 arm64 on the indri
k8s runner (used by paperless). Adding `containers/valkey/default.nix`
gives us an amd64 image built via nix on the ringtail
nix-container-builder, so immich-ringtail can stop pulling the upstream
`docker.io/valkey/valkey` multi-arch image.
Both builds track upstream valkey 8.1.x; bumping to 8.1.7 (Alpine 3.22
ships 8.1.7-r0, nixpkgs ships 8.1.7) — version-check now reports
`container.py=8.1.7, nix=8.1.7, service-versions=8.1.7`.
A follow-up commit on this branch will swap the immich-ringtail and
paperless kustomization tags once both builds succeed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Erich Blume
02859c55d1