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Postgresql password change

(Debajyoti) #1

I am writing own custom Dockerfile, I am not able to change the postgres user passwd

Last line of the Dockerfile.

CMD ["/"] contains

su - postgres -c '/usr/pgsql-9.3/bin/postgres -D /pg_home’
su - postgres -c “psql -U postgres -c “alter user postgres with password ‘postgres1234’;””

I am able to build the image container is getting started, but passwd is not getting changed.

(David Ham) #2

If you can use the official postgres image, or base your image on it, you can pass in a username and password as an environment variable when you docker run it. Like so:

docker run -it -e POSTGRES_PASSWORD=some_password postgres:9.4

You can also pass in POSTGRES_USER, POSTGRES_DB, and PGDATA, which is a file location where the database should store the data files.