Unset bootstrap credentials before exec-ing the server#1412
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POSTGRES_PASSWORD (and related vars) are only needed during initdb and the temporary-server initialisation phase. After that they serve no purpose, but remain in the process environment for the entire lifetime of the container, where any loaded C extension can read them via environ. Unsetting them immediately before the final exec ensures the running PostgreSQL server process starts with a clean environment.
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POSTGRES_PASSWORD (and related vars) are only needed during initdb and the temporary-server initialisation phase. After that they serve no purpose, but remain in the process environment for the entire lifetime of the container, where any loaded C extension can read them via environ.
Unsetting them immediately before the final exec ensures the running PostgreSQL server process starts with a clean environment.