Public Repository

Last pushed: 7 months ago
Short Description
A Ruby image with PostgreSQL to be used with Bitbucket Pipelines
Full Description

Ruby and PostgreSQL for Bitbucket Pipelines

This repository contains a Dockerfile as well as a simple example that shows how you can run your own Docker container with Ruby and PostgreSQL on Bitbucket Pipelines.

The Docker image is using Ruby 2.3.0 and PostgreSQL 9.4

Quickstart

Using the image with Bitbucket Pipelines

Just copy/paste the YML below in your bitbucket-pipelines.yml and adapt the script to your needs.

# This is a sample build configuration for Ruby.
# Only use spaces to indent your .yml configuration.
# -----
# You can specify a custom docker image from Dockerhub as your build environment.
image: spittet/ruby-postgresql

pipelines:
  default:
    - step:
        script: # Modify the commands below to build your repository.
          - /etc/init.d/postgresql start
          - sudo -u postgres sh -c 'createuser root & createdb ruby'
          - gem install 'pg'
          - ruby test.rb

Using this in a script

You'll find a sample script in this repository in test.rb. It simply connects to PostgreSQL and then lists the existing databases.

require 'pg'
con = PG.connect :dbname => 'ruby', :user => 'root'
puts con.server_version

dbs = con.exec('SELECT datname FROM pg_database WHERE datistemplate = false;')

dbs.each do |db|
  puts db
end

con.close

Create your own image

If you want to use a different version of Ruby you can simply create your own image for it. Just copy the content of the Dockerfile and replace the first line.

This image is built from the official Ruby image at https://hub.docker.com/_/ruby/ and you can find there all the different versions that are supported.

Your Dockerfile won't need to have an ENTRYPOINT or CMD line as Bitbucket Pipelines will run the script commands that you put in your bitbucket-pipelines.yml file instead.

FROM ruby:2.3.0 
RUN apt-get update \
  && apt-get install -y postgresql postgresql-contrib \
  && apt-get install sudo \
  && apt-get clean \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# This Dockerfile doesn't need to have an entrypoint and a command
# as Bitbucket Pipelines will overwrite it with a bash script.

Build the image

docker build -t <your-docker-account>/ruby-postgresql .

Run the image locally with bash to make some tests

docker run -i -t <your-docker-account>/ruby-postgresql /bin/bash

Push the image back to the Docker Hub

docker push <your-docker-account>/ruby-postgresql
Docker Pull Command
Owner
spittet

Comments (1)
pjmuller
10 months ago

Hi Sten,

I was wondering how to create an image with Postgresql 9.5

Doing apt-get install -y postgresql-9.5 postgresql-contrib-9.5 doesn't work as I get package not found.

And I have not found a way (within your Dockerfile template) to add extra repos to apt-get