fix(build): tag images with architecture

.gitlab-ci.yml

@@ -36,6 +36,7 @@ stages:
   allow_failure: false
 
 .build-docker: &build-docker
+  stage: image
   image: docker:18.09.9
   services:
     - docker:18.09.9-dind
@@ -50,11 +51,13 @@ stages:
     - echo "${DOCKER_SECRET}" | base64 -d > ${HOME}/.docker/config.json
     - docker info
   script:
-    - docker build -t $IMAGE_TAG .
-    - docker push $IMAGE_TAG
+    - docker build -f Dockerfile.${IMAGE_ARCH} -t ${IMAGE_TAG}-${IMAGE_ARCH} .
+    - docker push ${IMAGE_TAG}-${IMAGE_ARCH}
   after_script:
     - rm -rfv ${HOME}/.docker
 
+  dependencies:
+    - build-node
   variables: &vars-docker
     DOCKER_DRIVER: overlay2
     DOCKER_HOST: tcp://localhost:2375
@@ -98,28 +101,40 @@ build-node:
       - node_modules
       - out/cache
 
-build-image-branch:
+.build-image-alpine-branch:
   <<: [*build-docker]
-  stage: image
   except:
     - tags
-
-  dependencies:
-    - build-node
   variables:
     <<: [*vars-docker]
+    IMAGE_ARCH: alpine
     IMAGE_TAG: "ssube/salty-dog:${CI_COMMIT_REF_SLUG}"
 
-build-image-tag:
+.build-image-alpine-tag:
   <<: [*build-docker]
-  stage: image
   only:
     - tags
-
-  dependencies:
-    - build-node
   variables:
     <<: [*vars-docker]
+    IMAGE_ARCH: alpine
+    IMAGE_TAG: "ssube/salty-dog:${CI_COMMIT_TAG}"
+
+build-image-stretch-branch:
+  <<: [*build-docker]
+  except:
+    - tags
+  variables:
+    <<: [*vars-docker]
+    IMAGE_ARCH: stretch
+    IMAGE_TAG: "ssube/salty-dog:${CI_COMMIT_REF_SLUG}"
+
+build-image-stretch-tag:
+  <<: [*build-docker]
+  only:
+    - tags
+  variables:
+    <<: [*vars-docker]
+    IMAGE_ARCH: stretch
     IMAGE_TAG: "ssube/salty-dog:${CI_COMMIT_TAG}"
 
 # publish jobs