k0st/alpine-postgres

Multiple purpose PostgreSQL database based on Alpine

Image is based on the gliderlabs/alpine base image

Docker image size

Docker image usage

docker run [docker-options] k0st/alpine-postgres

Variables

Following environment variables will be used when running:

Standard

PGDATA - location of PostgreSQL database files (default: /var/lib/postgresql/data) POSTGRES_USER - PostgreSQL username (if not specified: postgres) POSTGRES_PASSWORD - PostgreSQL password (if not specified: empty)

Specific to this image

POSTGRES_DB - PostgreSQL database name (if not specified: same as POSTGRES_USER) POSTGRES_FIX_OWNERSHIP - PostgreSQL fix ownership of PGDATA

Remarks

Note that if you don't specify any POSTGRES environment parameters, postgres will listen on all interfaces with ALL privileges as postgres user.

You just need to minimaly specify POSTGRES_USER as env variable in order to create PostgreSQL database with same name. Password will be empty.

By default, only permissions to access POSTGRES_DB is given to POSTGRES_USER. No SUPERUSER permissions will be given.

But you don't need SUPERUSER permissions really. If you connect locally, it should not ask you for password, so you can use following procedure:

docker exec -it postgres_containerid /bin/sh
# gosu postgres psql

Only if nothing is specified, user postgres will have SUPERUSER privileges with access allowed from all hosts.

Examples

Quick testing (you can connect to this host from any hosts with username postgres):

docker run -it --rm k0st/alpine-postgres

Typical usage, create user test and database test:

docker run -it -v /host/dir/for/db:/var/lib/postgresql/data -e POSTGRES_USER=test k0st/alpine-postgres

Typical usage, create user test with password Passw0rd and database testdb

docker run -it -v /host/dir/for/db:/var/lib/postgresql/data -e POSTGRES_USER=test -e POSTGRES_PASSWORD=Passw0rd -e POSTGRES_DB=testdb k0st/alpine-postgres

Todo

• Provide more examples