feat(workflows/test): Add matrix for different tests

Add different os and os versions for the base image and Postgres version
to check compatibility in different environments with different Postgres
versions.

.github/workflows/integration-test.yml

@@ -11,6 +11,12 @@ on:
 
 jobs:
   test:
+    strategy:
+      matrix:
+        os: [ubuntu]
+        os_version: [20.04, 22.04]
+        postgres_version: [9.5, 10, 11, 12, 13]
+
     runs-on: ubuntu-20.04
 
     steps:
@@ -21,6 +27,10 @@ jobs:
 
       - name: Start containers
         run: docker-compose -f "deployment/docker-compose.yml" up -d --build
+        env:
+          OS: ${{os}}
+          OS_VERSION: ${{os_version}}
+          POSTGRES_VERSION: ${{postgres_version}}
 
       - name: Sleep so containers are ready
         run: sleep 15

deployment/Dockerfile

@@ -1,4 +1,7 @@
-FROM ubuntu:22.04
+ARG OS=ubuntu
+ARG OS_VERSION=22.04
+
+FROM ${OS}:${OS_VERSION}
 
 ENV container docker
 ENV LC_ALL C
@@ -15,7 +18,8 @@ RUN apt-get update && apt-get install -y \
 	lsb-core
 RUN echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list
 RUN curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
-RUN apt-get update && apt-get install -y postgresql-12
+ARG POSTGRES_VERSION=13
+RUN apt-get update && apt-get install -y postgresql-${POSTGRES_VERSION}
 
 RUN pip3 install pyyaml
 

deployment/docker-compose.yml

@@ -7,6 +7,10 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args:
+        OS: ${OS}
+        OS_VERSION: ${OS_VERSION}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
     hostname: master
     restart: always
     command: 'bash -c "/init.sh && sleep 3600"'
@@ -20,6 +24,10 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args:
+        OS: ${OS}
+        OS_VERSION: ${OS_VERSION}
+        POSTGRES_VERSION: ${POSTGRES_VERSION}
     hostname: replica
     restart: always
     command: 'bash -c "/init.sh && exec /lib/systemd/systemd" && sleep 3600'