ci: enable base image caching

.gitlab-ci.yml

@@ -6,7 +6,7 @@ daemon:
   script:
     - mkdir -p /kaniko/.docker
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-    - /kaniko/executor --context $CI_PROJECT_DIR/daemon --dockerfile $CI_PROJECT_DIR/daemon/Dockerfile --destination $CI_REGISTRY_IMAGE:daemon-${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA} --destination $CI_REGISTRY_IMAGE:daemon
+    - /kaniko/executor --cache=true --context $CI_PROJECT_DIR/daemon --dockerfile $CI_PROJECT_DIR/daemon/Dockerfile --destination $CI_REGISTRY_IMAGE:daemon-${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA} --destination $CI_REGISTRY_IMAGE:daemon
 wireguard:
   stage: build
   image:
@@ -15,4 +15,4 @@ wireguard:
   script:
     - mkdir -p /kaniko/.docker
     - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
-    - /kaniko/executor --context $CI_PROJECT_DIR/wireguard --dockerfile $CI_PROJECT_DIR/wireguard/Dockerfile --destination $CI_REGISTRY_IMAGE:wireguard-${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA} --destination $CI_REGISTRY_IMAGE:wireguard
+    - /kaniko/executor --cache=true --context $CI_PROJECT_DIR/wireguard --dockerfile $CI_PROJECT_DIR/wireguard/Dockerfile --destination $CI_REGISTRY_IMAGE:wireguard-${CI_COMMIT_TAG:-$CI_COMMIT_SHORT_SHA} --destination $CI_REGISTRY_IMAGE:wireguard