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Marc-André Bombeck
485161a657
After the migrations the entrypoint ensures healthlog_app, a login role with row access to the app's schema, MAINTAIN on measurements and ownership of the pgboss schema, and starts the app with a DATABASE_URL for it in place of the owner's. The role cannot alter or drop tables, create roles, schemas or functions in the app's schema, read server files or run programs, or write the migration history. The password is an HMAC of a fixed label under API_TOKEN_HMAC_KEY, so a separate worker container derives the same one, and it is sent as a SCRAM verifier. Every boot re-applies the grants in one transaction under an advisory lock, and drops as the owner the indexes the maintenance job may no longer drop. When the owner cannot create roles, the server is older than Postgres 17, or the role cannot log in, the boot says why and the app stays on the owner as before. DB_APP_ROLE=off skips it.