Earthly Build Caching in GitLab Container Registry

.gitlab-ci.yml

@@ -12,18 +12,27 @@ stages:
 
 test_amd64:
   stage: test
-  image: earthly/earthly:v0.7.15
+  image: docker
+  services:
+    - docker:dind
   only:
-     - main
-     - merge_requests
-  script:
+    - main
+    - merge_requests
+  before_script:
+    - apk update && apk add git
+    - wget https://github.com/earthly/earthly/releases/download/v0.6.2/earthly-linux-amd64 -O /usr/local/bin/earthly
+    - chmod +x /usr/local/bin/earthly
     - earthly bootstrap
-    - earthly --ci +unit-tests-linux-amd64
-  when: manual
+    - echo $CI_REGISTRY_PASSWORD | docker login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
+  script:
+    - if [ "$CI_COMMIT_BRANCH" == "main" ]; then cache_args="--save-inline-cache --push"; fi
+    - if [ "$CI_PROJECT_PATH" != "veilid/veilid" ]; then project_args="--CI_PROJECT_PATH=$CI_PROJECT_PATH"; fi
+    - earthly --use-inline-cache $cache_args --ci +unit-tests-linux $project_args
+  resource_group: test
 
 release_job:
   stage: release
-  image: registry.gitlab.com/gitlab-org/release-cli:latest        
+  image: registry.gitlab.com/gitlab-org/release-cli:latest
   script:
     - echo "running release_job"
   release:                               # See https://docs.gitlab.com/ee/ci/yaml/#release for available properties
@@ -55,7 +64,7 @@ package_amd64_deb:
     - /home/gitlab-runner/scp-to-orchestrator.sh
   rules:
     - if: '$CI_COMMIT_TAG =~ /v\d.+/'
-  
+
 package_arm64_deb:
   stage: build_packages
   needs:
@@ -113,4 +122,4 @@ delete_build_machines:
     - /home/gitlab-runner/build-machine-ctl.sh delete arm64-deb
     - /home/gitlab-runner/build-machine-ctl.sh delete amd64-rpm
   rules:
-    - if: '$CI_COMMIT_TAG =~ /v\d.+/'
+    - if: '$CI_COMMIT_TAG =~ /v\d.+/'