Add a key4hep-build workflow

.github/workflows/key4hep-build.yaml

@@ -1,13 +1,75 @@
 name: Key4hep build
 
 on:
-  pull_request:
+  push:
+    branches:
+      - main
   workflow_dispatch:
 
+build_commands: &build_commands |
+  source ${{ matrix.release }}/setup.sh
+  mkdir build
+  cd build
+  cmake .. -DCMAKE_CXX_STANDARD=17 -DCMAKE_INSTALL_PREFIX=../install -G Ninja
+  ninja install
+  ctest -j $(nproc) --output-on-failure
+
+build_strategy: &build_strategy
+  strategy:
+    fail-fast: false
+    matrix:
+      release: ["sw.hsf.org/key4hep",
+                "sw-nightlies.hsf.org/key4hep"]
+
 jobs:
-  test:
+  job1:
     runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/key4hep-images/alma9-build:latest
+
+    <<: *build_strategy
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up CVMFS
+        uses: cvmfs-contrib/github-action-cvmfs@v3
+
+      - name: Setup environment and build
+        run: *build_commands
+
+  job2:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/key4hep-images/ubuntu22-build:latest
+
+    <<: *build_strategy
+
     steps:
-    - uses: actions/checkout@v3
-    - uses: cvmfs-contrib/github-action-cvmfs@v3
-    - uses: key4hep/key4hep-actions/key4hep-build-test@main
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up CVMFS
+        uses: cvmfs-contrib/github-action-cvmfs@v3
+
+      - name: Setup environment and build
+        run: *build_commands
+
+
+  job3:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/key4hep-images/centos7-build:latest
+
+    <<: *build_strategy
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up CVMFS
+        uses: cvmfs-contrib/github-action-cvmfs@v3
+
+      - name: Setup environment and build
+        run: *build_commands