github actions - run sql script in postgres service

Question

I want to run a script in the postgres service in github actions that creates a table and adds an extension. How can I do that? Do I need to make a shell script or can I do right in the yaml file?

sql script

drop database mydb;
create database mydb;
\c mydb;
CREATE EXTENSION "pgcrypto";

workflow

name: API Integration Tests

on: 
    pull_request:
    push:
        branches:
            -master

env:
    DB_HOST: localhost
    DB_USERNAME: postgres
    DB_PASSWORD: rt

jobs:
    build:
        runs-on: ubuntu-latest

        strategy:
          matrix:
            node-version: [10.x, 12.x, 13.x]


    services:
        postgres:
          image: postgres:latest
          env:
            POSTGRES_DB: mydb        
            POSTGRES_PASSWORD: helloworl
            POSTGRES_USER: postgres
          ports:
            - 5433:5432
          # Set health checks to wait until postgres has started
          options: >-
            --health-cmd pg_isready
            --health-interval 10s
            --health-timeout 5s
            --health-retries 5
    steps:
        - uses: actions/checkout@v1
        - name: Use Node.js ${{ matrix.node-version }}
            uses: actions/setup-node@v1
            with:
            node-version: ${{ matrix.node-version }}
        - name: npm install
            run: npm ci
        - name: npm test
            run: npm run test

Answer 1

You can add a step that uses PSQL commands.

Here's an example step that creates your database:

- name: Create database
  run: |
     PGPASSWORD=helloworl psql -U postgres -tc "SELECT 'CREATE DATABASE mydb' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'mydb')"

By the way, I note that the next command you wanted was: CREATE EXTENSION "pgcrypto"; , which I assume is because you want to generate UUIDs (Common use case). Please note that you do not need this for get_random_uuid() as this is natively support in Postgres from v13 onwards.

However if you really, really, really wanted to add pgcrypto, you can use this step:

- name: Enable pgcrypto extension
  run: |
     PGPASSWORD=helloworl psql -U postgres -tc "CREATE EXTENSION 'pgcrypto';"