CODEWITHSUNDEEP
postgresqldockerdockerfile
Ken Tan
Ken Tan

Reputation: 21

Extending postgres image using dockerfile with POSTGRES_PASSWORD

I'm extending the postgres image with an argument POSTGRES_PASSWORD=postgres so that my derived container would already have a default password using docker build with dockerfile.

Whenever I ran psql -U postgres on the container from the derived image i made from postgres, I get: 

could not connect to server: No such file or directory
        Is the server running locally and accepting
        connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?

On my DockerFile I have:

ARG POSTGRES_PASSWORD=postgres
FROM postgres:alpine

RUN apk add --update nodejs
RUN apk add --update npm
RUN apk add --update erlang
RUN apk add --update elixir

CMD ["/bin/bash"]

then I ran

docker build -t myImage .
docker run --name sample -d -it myImage
docker exec -it sample bash

I want to run psql -U postgres on sample container (image extended from postgres).

Upvotes: 1

Views: 1503

Answers (1)

Schisme
Schisme

Reputation: 463

Try to replace ARG POSTGRES_PASSWORD=postgres by ENV POSTGRES_PASSWORD postgres

The postgres docker image documentation state that this parameter is an Environement Variable, so this might help.

Upvotes: 2

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