add github workflows

.github/workflows/tests.yml

@@ -0,0 +1,61 @@
+name: tests
+
+on:
+  push:
+
+jobs:
+  rspec:
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby_version: ["2.6", "2.7", "3.0"]
+        postgres-version: ["12", "13", "14", "15", "16"]
+
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:${{ matrix.postgres-version }}
+        env:
+          POSTGRES_DB: que-test
+          POSTGRES_USER: ubuntu
+          POSTGRES_PASSWORD: password
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 10
+      lock_database:
+        image: postgres:${{ matrix.postgres-version }}
+        env:
+          POSTGRES_DB: lock-test
+          POSTGRES_USER: ubuntu
+          POSTGRES_PASSWORD: password
+        ports:
+          - 5434:5434
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 10
+      
+    env:
+      PGDATABASE: que-test
+      PGUSER: ubuntu
+      PGPASSWORD: password
+      PGHOST: localhost
+      LOCK_PGDATABASE: lock-test
+      LOCK_PGUSER: ubuntu
+      LOCK_PGPASSWORD: password
+      LOCK_PGHOST: localhost
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: "${{ matrix.ruby-version }}"
+      - name: Run specs
+        run: |
+          bundle exec rspec

Gemfile

@@ -22,6 +22,6 @@ group :test do
 end
 
 gem 'prometheus-client', '~> 1.0'
-gem 'prometheus_gcstat', git: 'git@github.com:gocardless/prometheus_gcstat_ruby'
+# gem 'prometheus_gcstat', git: 'git@github.com:gocardless/prometheus_gcstat_ruby'
 
 gemspec

spec/spec_helper.rb

@@ -43,6 +43,7 @@ def self.establish_lock_database_connection
       user: ENV.fetch("LOCK_PGUSER", "postgres"),
       password: ENV.fetch("LOCK_PGPASSWORD", ""),
       database: ENV.fetch("LOCK_PGDATABASE", "lock-test"),
+      port: ENV.fetch("LOCK_PGPORT", 5434),
     )
   end
   def self.connection