Only rebuild images on request, or once 14 days old

.github/workflows/build-env/action.yml

@@ -0,0 +1,99 @@
+name: Build Fenix's Environment Image
+
+on:
+  # workflow_call = called by another workflow
+  workflow_call:
+    inputs:
+      ompi_version:
+        description: "Open MPI version to build"
+        type: string
+        required: true
+      max_age:
+        description: "Maximum image age before rebuild, in days"
+        type: number
+        required: false
+        default: 14
+  # workflow_dispatch = manual trigger
+  workflow_dispatch:
+    inputs:
+      ompi_version:
+        description: "Open MPI version to build"
+        type: string
+        required: true
+      max_age:
+        description: "Maximum image age before rebuild, in days"
+        type: number
+        required: false
+        default: 0
+
+env:
+  IMAGE_NAME: ghcr.io/sandialabs/fenix/env
+
+jobs:
+  detect_image:
+    runs-on: ubuntu-latest
+    outputs:
+      found: ${{ steps.outputs.found }}
+    steps:
+      - name: Check for valid image
+        run: |
+          IMG=${{ env.IMAGE_NAME }}:${{ inputs.ompi_version }}
+          docker image rm -f $IMG; docker pull $IMG || true
+          IMG_CREATED=$(docker inspect --type=image --format '{{.Created}}' $IMG 2>/dev/null)
+          if [ -z "$IMG_CREATED" ]; then
+            echo "found=false" >> $GITHUB_OUTPUT
+            exit 0
+          fi
+
+          IMG_AGE=$(( ($(date +%s) - $(date -d "$IMG_CREATED" +%s)) / (60*60*24) ))
+          if [ "$IMG_AGE" -lt ${{ inputs.max_age }} ]; then
+            echo "found=true" >> $GITHUB_OUTPUT
+          else
+            echo "found=false" >> $GITHUB_OUTPUT
+          fi
+  
+  build_image:
+    runs-on: ubuntu-latest
+    needs: detect_image
+    if: needs.detect_image.outputs.found == 'false'
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Log in to GHCR container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Bake the bootstrap docker image
+        uses: docker/bake-action@v5
+        with:
+          files: .github/docker-compose.yml
+          targets: bootstrap
+          workdir: .
+          set: |
+            *.output=type=docker,name=bootstrap
+            *.cache-from=type=gha,scope=bootstrap/${{ matrix.ompi_version }}
+            *.cache-to=type=gha,mode=max,scope=bootstrap/${{ matrix.ompi_version }}
+            *.args.OMPI_VERSION=${{ matrix.ompi_version }}
+      
+      - name: Bootstrap the environment Dockerfile
+        run: docker run -v ${GITHUB_WORKSPACE}/.github:/configs bootstrap
+
+      - name: Build the environment
+        uses: docker/bake-action@v5
+        with:
+          files: .github/docker-compose.yml
+          targets: env
+          workdir: .
+          pull: true
+          set: |
+            *.cache-from=type=gha,scope=env/${{ matrix.ompi_version }}
+            *.cache-to=type=gha,mode=max,scope=env/${{ matrix.ompi_version }}
+            env.tags=ghcr.io/sandialabs/fenix/env:${{ matrix.ompi_version }}
+            env.output=type=registry,name=ghcr.io/sandialabs/fenix/env:${{ matrix.ompi_version }}

.github/workflows/ci_checks.yaml

@@ -22,51 +22,19 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-
-      - name: Log in to GHCR container registry
-        uses: docker/login-action@v3
+      - name: Build the environment image
+        uses: ./.github/workflows/build-env
         with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+          ompi_version: ${{ matrix.ompi_version }}
 
-      - name: Bake the bootstrap docker image
-        uses: docker/bake-action@v5
-        with:
-          files: .github/docker-compose.yml
-          targets: bootstrap
-          workdir: .
-          set: |
-            *.output=type=docker,name=bootstrap
-            *.cache-from=type=gha,scope=bootstrap/${{ matrix.ompi_version }}
-            *.cache-to=type=gha,mode=max,scope=bootstrap/${{ matrix.ompi_version }}
-            *.args.OMPI_VERSION=${{ matrix.ompi_version }}
-      
-      - name: Bootstrap the environment Dockerfile
-        run: docker run -v ${GITHUB_WORKSPACE}/.github:/configs bootstrap
-
-      - name: Build the environment
-        uses: docker/bake-action@v5
-        with:
-          files: .github/docker-compose.yml
-          targets: env
-          workdir: .
-          pull: true
-          set: |
-            *.cache-from=type=gha,scope=env/${{ matrix.ompi_version }}
-            *.cache-to=type=gha,mode=max,scope=env/${{ matrix.ompi_version }}
-            env.tags=ghcr.io/sandialabs/fenix/env:${{ matrix.ompi_version }}
-            env.output=type=registry,name=ghcr.io/sandialabs/fenix/env:${{ matrix.ompi_version }}
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
 
       - name: Build Fenix
         uses: docker/bake-action@v5
         with:
-          source: .
           files: .github/docker-compose.yml
           targets: fenix
-          workdir: .
           set: |
             *.output=type=docker,name=fenix
             *.args.OMPI_VERSION=${{ matrix.ompi_version }}