Add GitHub Actions workflow for building and testing PG master

.github/workflows/build-and-test-pg-master.yml

@@ -0,0 +1,103 @@
+name: Build & Test PG Master
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "main"
+  pull_request:
+
+jobs:
+  params:
+    runs-on: ubuntu-latest
+    name: Initialize parameters
+    outputs:
+      build_image_name: "ghcr.io/citusdata/extbuilder"
+      test_image_name: "ghcr.io/citusdata/exttester"
+      pg_master_version: '{ "major": "master", "full": "master" }'
+      image_suffix: "-veab367a"
+    steps:
+      - name: Set up parameters
+        run: echo 'noop'
+
+  build_pg_master:
+    needs: params
+    name: Build for PG${{ fromJson(matrix.pg_version).major }}
+    strategy:
+      fail-fast: false
+      matrix:
+        image_name:
+          - ${{ needs.params.outputs.build_image_name }}
+        pg_version:
+          - ${{ needs.params.outputs.pg_master_version }}
+        image_suffix:
+          - ${{ needs.params.outputs.image_suffix }}
+    runs-on: ubuntu-20.04
+    container:
+      image: "${{ matrix.image_name }}:${{ fromJson(matrix.pg_version).full }}${{ matrix.image_suffix }}"
+      options: --user root
+    steps:
+      - uses: actions/checkout@v4
+      - name: Expose PG_MAJOR to GitHub Environment
+        run: echo "PG_MAJOR=${{ fromJson(matrix.pg_version).major }}" >> $GITHUB_ENV
+        shell: bash
+      - name: Build Citus with PG master branch
+        run: "./ci/build-citus.sh"
+        shell: bash
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: build-${{ env.PG_MAJOR }}
+          path: |-
+            ./build-${{ env.PG_MAJOR }}/*
+            ./install-${{ env.PG_MAJOR }}.tar
+
+  test_citus_pg_master:
+    needs: build_pg_master
+    name: PG${{ fromJson(matrix.pg_version).major }} - Test Citus
+    strategy:
+      fail-fast: false
+      matrix:
+        suite:
+          - regress
+        image_name:
+          - ${{ needs.params.outputs.test_image_name }}
+        pg_version:
+          - ${{ needs.params.outputs.pg_master_version }}
+        make:
+          - check-split
+          - check-multi
+          - check-multi-1
+          - check-multi-mx
+          - check-vanilla
+          - check-isolation
+          - check-operations
+          - check-follower-cluster
+          - check-columnar
+          - check-columnar-isolation
+          - check-enterprise
+          - check-enterprise-isolation
+          - check-enterprise-isolation-logicalrep-1
+          - check-enterprise-isolation-logicalrep-2
+          - check-enterprise-isolation-logicalrep-3
+    runs-on: ubuntu-20.04
+    container:
+      image: "${{ matrix.image_name }}:${{ fromJson(matrix.pg_version).full }}${{ needs.params.outputs.image_suffix }}"
+      options: --user root --dns=8.8.8.8
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/setup_extension
+      - name: Run tests
+        run: gosu circleci make -C src/test/${{ matrix.suite }} ${{ matrix.make }}
+        timeout-minutes: 20
+      - name: Save logs and results
+        if: always()
+        uses: ./.github/actions/save_logs_and_results
+        with:
+          folder: ${{ fromJson(matrix.pg_version).major }}_${{ matrix.make }}
+      - name: Upload coverage results
+        if: always()
+        uses: ./.github/actions/upload_coverage
+        with:
+          flags: ${{ env.PG_MAJOR }}_${{ matrix.suite }}_${{ matrix.make }}
+          codecov_token: ${{ secrets.CODECOV_TOKEN }}