p9s / postgres

Implementation of the Autopilot Pattern for Postgres

Autopilot Pattern Postgres

This repo serves as a blueprint demonstrating Postgres designed for automated operation using the Autopilot Pattern.

Environment Variables

• CONSUL: consul hostname
• CONSUL_AGENT: determines if the consul agent is executed in the container
• DEBUG: used to control the Node.js debug module
• LOG_LEVEL: control the amount of logging from ContainerPilot
• PGDATA: sets the location of the Postgres database files
• POSTGRES_DB: the name of the Postgres database
• POSTGRES_PASSWORD: the password used to access the Postgres database
• POSTGRES_USER: the username used to access the Postgres database

Example Usage

$ cd examples/compose
$ docker-compose up -d
$ docker-compose scale db=3

The first instance creates a Postgres master. All additional instances create read-only replicas.

Modifying this Pattern

This image extends the official postgres:9.6.4-alpine image. Postgres can be configured as needed by modifying etc/pg_hba.conf, etc/postgresql.conf.ctmpl, and etc/recovery.conf.ctmpl, and then rebuilding the image.