Dockerization

Dockerize PostgreSQL: Tuned Configs, Automated Backups, Zero Data Loss

Running PostgreSQL in Docker is straightforward — until you need custom tuning, point-in-time recovery, and automated backups. We set up Postgres containers with production-grade postgresql.conf tuning, WAL archiving, scheduled pg_dump backups, and health checks that verify the database is actually accepting connections.

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Why Dockerize PostgreSQL

PostgreSQL's default configuration is designed for a laptop with 1 GB of RAM — shared_buffers at 128 MB, work_mem at 4 MB, effective_cache_size at 4 GB. Running Postgres in Docker with these defaults means wasting your server's resources.

Dockerized Postgres also needs persistent storage that survives container recreation, a backup strategy that does not depend on SSH access, and monitoring that integrates with your container orchestrator's health check system.

Our Docker Implementation for PostgreSQL

Production Postgres Compose stack:

  • Postgres container: FROM postgres:16-alpine — custom postgresql.conf mounted via volume, tuned for your server's RAM: shared_buffers=RAM/4, effective_cache_size=RAM*3/4, work_mem based on connection count, maintenance_work_mem=RAM/16. Initialization scripts in /docker-entrypoint-initdb.d/.
  • Backup container: Sidecar running pg_dump on a cron schedule, compressing with gzip, and rotating old backups. Optionally pushes to S3-compatible storage.
  • Exporter container: postgres_exporter for Prometheus metrics.

Health check: pg_isready -U $POSTGRES_USER -d $POSTGRES_DB. Data lives on a named volume pgdata:/var/lib/postgresql/data. Connection pooling via PgBouncer sidecar for high-connection apps.

What You Get

  • docker-compose.yml with tuned Postgres, backup sidecar, and optional PgBouncer
  • Custom postgresql.conf tuned for your server's resources
  • Automated backup with retention policy and optional S3 upload
  • Initialization scripts for database, user, and extension setup
  • Health check with pg_isready
  • Prometheus exporter for monitoring

Why Anubiz Engineering

100% async — no calls, no meetings
Delivered in days, not weeks
Full documentation included
Production-grade from day one
Security-first approach
Post-delivery support included

Ready to get started?

Skip the research. Tell us what you need, and we'll scope it, implement it, and hand it back — fully documented and production-ready.

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