Add Docker caching overlay for all services in CI workflows

Co-authored-by: dannystaple <426859+dannystaple@users.noreply.github.com>

Author: Copilot

.github/workflows/on_call_build_site.yaml

@@ -8,9 +8,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build the site with docker compose
         run: |
-          docker compose run --build build
+          docker compose -f docker-compose.yml -f docker-compose.ci.yml run --build build
 
       - name: Tarball the site
         run: |

.github/workflows/on_call_staging_test.yaml

@@ -42,7 +42,7 @@ jobs:
           # Run BDD integration tests using docker compose
           echo "## BDD Test Results" >> $GITHUB_STEP_SUMMARY
           echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          docker compose run test 2>&1 | tee bdd_output.txt
+          docker compose -f docker-compose.yml -f docker-compose.ci.yml run test 2>&1 | tee bdd_output.txt
           bdd_exit_code=$?
           cat bdd_output.txt >> $GITHUB_STEP_SUMMARY
           echo "\`\`\`" >> $GITHUB_STEP_SUMMARY

docker-compose.ci.yml

@@ -1,7 +1,56 @@
 services:
+  serve:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
+  dist:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
+  build:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
   staging:
     build:
       cache_from:
         - type=gha
       cache_to:
-        - type=gha,mode=max
+        - type=gha,mode=max
+
+  test:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
+  shell:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
+  http_serve:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max
+
+  broken_links:
+    build:
+      cache_from:
+        - type=gha
+      cache_to:
+        - type=gha,mode=max