Start postgres:18+ images: pin PGDATA below the data mount - #11
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postgres:18+ images abort when a volume is mounted on their pre-18 default data directory (/var/lib/postgresql/data), which is exactly what the generated db service did. An explicit PGDATA one level below the mount is accepted by every major from 13 to 18, so the mount stays where it is and existing configs keep working; stacks created before this pick the new layout up with `reset-db`. Release v0.1.0-beta.21. Claude-Session: https://claude.ai/code/session_01WgWTM3kM3C2eLM6wcZuMhU
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postgres:18+images refuse to start when a volume is mounted on/var/lib/postgresql/data, their pre-18 default data directory (docker-library/postgres#1259). The generateddbservice mounted exactly there, so anypostgresImage: "postgres:18.x"config produced a db container in a restart loop andsetupfailed after 60 readiness probes.Fix: set
PGDATA=/var/lib/postgresql/data/pgdataon the db service. The mount is unchanged, and this layout is accepted by every major from 13 to 18 (verified withpostgres:16andpostgres:18.6). Stacks created before this release keep their old data directory root;reset-dbrebuilds them on the new layout.test/core/compose-model.test.ts0.1.0-beta.21; tagv0.1.0-beta.21after merge to publishValidated end to end on a real project:
setup(full module install + template snapshot) andtestonpostgres:18.6.https://claude.ai/code/session_01WgWTM3kM3C2eLM6wcZuMhU