Cache chromium for arm64 builds

.gitlab/ci/definitions.yml

@@ -1,32 +1,60 @@
-.build_and_push:
-  stage: custom
-  needs: []
+.install-qemu:
+  timeout: 2 hours # builds with emulation can take a long time to complete
   tags:
     - docker
     - high-cpu
   variables:
     QEMU_IMAGE: tonistiigi/binfmt:qemu-v6.2.0
-  timeout: 2 hours
   before_script:
-    - echo "$CI_REGISTRY_PASSWORD" | docker login "$CI_REGISTRY" -u "$CI_REGISTRY_USER" --password-stdin
     - |
-      if [ "${ARCH:-amd64}" != "amd64" ]; then
+      if [ "$PUSH_CUSTOM_IMAGE" == "true" ]; then
+        echo "$CI_REGISTRY_PASSWORD" | docker login "$CI_REGISTRY" -u "$CI_REGISTRY_USER" --password-stdin
+      fi
+    - |
+      if [[ "${ARCH:-amd64}" =~ arm64 ]]; then
         echo -e "\033[1;33mInstalling latest qemu emulators\033[0m"
         docker pull -q ${QEMU_IMAGE};
         docker run --rm --privileged ${QEMU_IMAGE} --uninstall qemu-*;
         docker run --rm --privileged ${QEMU_IMAGE} --install all;
       fi
+
+.build_and_push:
+  stage: custom
+  extends: .install-qemu
+  needs: []
   script:
     - ./scripts/lib/custom-docker-build
   rules:
     - if: '$CI_PIPELINE_SOURCE == "merge_request_event" && $CI_SERVER_HOST == "gitlab.com"'
-      variables:
-        BASE_BUILD_REGISTRY_IMAGE: registry.gitlab.com/gitlab-org/gitlab-build-images
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH && $CI_SERVER_HOST == "gitlab.com"'
       variables:
         PUSH_CUSTOM_IMAGE: "true"
-        BASE_BUILD_REGISTRY_IMAGE: registry.gitlab.com/gitlab-org/gitlab-build-images
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH && ($CI_SERVER_HOST == "ops.gitlab.net" || $CI_SERVER_HOST == "dev.gitlab.org")'
       variables:
         PUSH_CUSTOM_IMAGE: "true"
         BASE_BUILD_REGISTRY_IMAGE: $CI_REGISTRY_IMAGE
+
+.cache-google-chrome:
+  stage: automation
+  extends: .install-qemu
+  needs: []
+  variables:
+    ARCH: linux/amd64,linux/arm64
+  before_script:
+    - !reference [.install-qemu, before_script]
+    - docker buildx create --use # creates context that's capable of building multiple architectures in parallel
+  script:
+    - |
+      docker buildx build \
+        --build-arg CI_API_V4_URL=$CI_API_V4_URL \
+        --build-arg CI_PROJECT_ID=$CI_PROJECT_ID \
+        --build-arg CI_JOB_TOKEN=$CI_JOB_TOKEN \
+        --platform $ARCH \
+        -f "Dockerfile.cache-chrome" \
+        .
+  rules:
+    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH && $CI_SERVER_HOST == "gitlab.com"'
+    - if: '$CI_PIPELINE_SOURCE == "schedule" && $CI_SERVER_HOST == "gitlab.com"'
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event" && $CI_SERVER_HOST == "gitlab.com"'
+      when: manual
+      allow_failure: true