Added cache for GitHub Actions Docker builds (#2214)

Author: tobiasmcnulty

.github/workflows/docker-publish.yml

@@ -19,6 +19,9 @@ jobs:
             - name: Checkout repository
               uses: actions/checkout@v4
 
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v3
+
             - name: Log in to the Container registry
               uses: docker/login-action@v3
               with:
@@ -44,3 +47,5 @@ jobs:
                   push: true
                   tags: ${{ steps.meta.outputs.tags }}
                   labels: ${{ steps.meta.outputs.labels }}
+                  cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-buildcache:bc-publish-${{ github.ref_name }}
+                  cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-buildcache:bc-publish-${{ github.ref_name }},mode=max

.github/workflows/docker-test-build.yml

@@ -3,12 +3,17 @@ name: Docker test build
 on:
     pull_request:
 
+env:
+    REGISTRY: ghcr.io
+    IMAGE_NAME: ${{ github.repository }}
+
 concurrency:
     group: ${{ github.workflow }}-${{ github.ref }}
     cancel-in-progress: true
 
 permissions:
     contents: read
+    packages: write
 
 jobs:
     build-image:
@@ -25,10 +30,22 @@ jobs:
             - name: Checkout repository
               uses: actions/checkout@v4
 
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v3
+
+            - name: Log in to the Container registry
+              uses: docker/login-action@v3
+              with:
+                  registry: ${{ env.REGISTRY }}
+                  username: ${{ github.actor }}
+                  password: ${{ secrets.GITHUB_TOKEN }}
+
             - name: Test docker image build (local development)
               uses: docker/build-push-action@v6
               with:
                   context: .
                   push: false
                   build-args: |
                       REQ_FILE=requirements/${{ matrix.req_file }}
+                  cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-buildcache:bc-test-build-${{ matrix.req_file }}
+                  cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-buildcache:bc-test-build-${{ matrix.req_file }},mode=max