Install Postgres extensions in bitbucket pipeline - postgresql

Question

So I've setup a bitbucket-pipelines.yml for my python app. It needs a postgres database so I've followed the tutorial here (https://confluence.atlassian.com/bitbucket/test-with-databases-in-bitbucket-pipelines-856697462.html) which has led me to the following config:
image: node
pipelines:
default:
- step:
script:
- npm install
- npm test
services:
- postgres
definitions:
services:
postgres:
image: postgres
environment:
POSTGRES_DB: 'pipelines'
POSTGRES_USER: 'test_user'
POSTGRES_PASSWORD: 'test_user_password'
I need some specific extensions in my db, how can I add these. I tried to add an extra in the script that installs them but at that point postgres doesn't seem to be up and running.

Answer 1

This worked for me, without the need to build my own image (I add 2 extensions to postgres):
image: node:8.11.1 # or any image you need
clone:
depth: 1 # include the last commit
definitions:
services:
postgres:
image: postgres
environment:
POSTGRES_DB: test
POSTGRES_USER: postgres
POSTGRES_PASSWORD: your_password
pipelines:
default:
- step:
caches:
- node
script:
- npm install
- apt-get update
- apt-get -y install postgresql-client
- ./bin/utilities/wait-for-it.sh -h localhost -p 5432 -t 30
- PGPASSWORD=your_password psql -h localhost -p 5432 -c "create extension if not exists \"uuid-ossp\"; create extension if not exists pg_trgm;" -U postgres test;
- npm test test/drivers/* test/helpers/* test/models/*
services:
- postgres
wait-for-it.sh makes sure that postgres is ready to run, you can find it here: https://github.com/vishnubob/wait-for-it
Then, I run psql to create the extensions in the test database. Here note the variable PGPASSWORD I set before running that and that I use the -h and -p parameters to connect to the running postgres instance (otherwise it will try to do it with unix sockets, which doesn't seem to work).

Answer 2

You need to create your own image based on postgres, then push it to repository and use in pipeline
definitions:
services:
postgres:
image: your_custom_image_based_on_postgres
environment:
POSTGRES_DB: 'pipelines'
POSTGRES_USER: 'test_user'
POSTGRES_PASSWORD: 'test_user_password'
You can also find image that suit your requirements in https://hub.docker.com/