Running PostgreSQL with Docker

Short summary

A practical guide to running PostgreSQL in Docker for local development, covering one-off containers, docker-compose setups, persistent volumes, init scripts, and health checks. Key patterns include pinning image versions, using named volumes for data persistence, and leveraging depends_on with health conditions to coordinate service startup. Common pitfalls like password auth failures and networking between services are addressed.

• •Use docker-compose with named volumes for reproducible, persistent Postgres instances
• •Pin image versions and use health checks to coordinate app startup
• •Init scripts in /docker-entrypoint-initdb.d/ run only on first startup with a fresh volume

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