Build dev images too

.gitlab-ci.yml

 stages:
   - build
 
-build:
+build_prod:
   stage: build
   retry: 2
   image:
@@ -13,3 +13,15 @@ build:
   only:
     - tags
 
+build_dev:
+  stage: build
+  retry: 2
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/Dockerfile --destination $CI_REGISTRY_IMAGE/api:$CI_COMMIT_REF_SLUG
+  only:
+    - tags
+