Build docker from CI and move docker-compose config in another repo

https://framagit.org/framasoft/joinmobilizon/docker

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

.gitlab-ci.yml

@@ -4,6 +4,7 @@ stages:
   - check
   - test
   - deploy
+  - docker
 
 variables:
   MIX_ENV: "test"
@@ -121,3 +122,29 @@ exunit:
 #     expire_in: 1 hour
 #     paths:
 #       - public
+
+.docker: &docker
+  stage: docker
+  cache: {}
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  before_script:
+    - mkdir -p /kaniko/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$CI_REGISTRY_AUTH\",\"email\":\"$CI_REGISTRY_EMAIL\"}}}" > /kaniko/.docker/config.json
+  script:
+    - /kaniko/executor --context $CI_PROJECT_DIR --dockerfile $CI_PROJECT_DIR/docker/production/Dockerfile --destination $DOCKER_IMAGE_NAME
+
+build-docker-master:
+  <<: *docker
+  only:
+    - schedules
+  variables:
+    DOCKER_IMAGE_NAME: framasoft/mobilizon:master
+
+build-docker-tag:
+  <<: *docker
+  only:
+    - tags
+  variables:
+    DOCKER_IMAGE_NAME: framasoft/mobilizon:$CI_COMMIT_TAG