Merge branch 'gitlab-ci-fix' into 'develop'

Gitlab ci fix

See merge request !14

.gitlab-ci.yml

@@ -1,5 +1,7 @@
 variables:
   GIT_SUBMODULE_STRATEGY: normal
+  DOCKER_COMPOSE_VERSION: 1.14.0
+  PY_DOCKER_VERSION: 2.4.2
   CI: "true"
 
 cache:
@@ -43,6 +45,8 @@ test_job:
 
 deploy_review:
   stage: deploy
+  only:
+    - develop
   environment: review
   variables:
     COMPOSE_TLS_VERSION: "TLSv1_2"
@@ -51,7 +55,9 @@ deploy_review:
     DOCKER_CERT_PATH: "certs"
   before_script:
     - apk add --no-cache py-pip
-    - pip install docker-compose
+    - pip install --upgrade pip
+    - pip install docker-compose==$DOCKER_COMPOSE_VERSION
+    - pip install -U docker==$PY_DOCKER_VERSION
     - mkdir -p $DOCKER_CERT_PATH
     - echo "$DEPLOYMENT_CACERT"      > $DOCKER_CERT_PATH/ca.pem
     - echo "$DEPLOYMENT_CLIENT_CERT" > $DOCKER_CERT_PATH/cert.pem
@@ -64,7 +70,5 @@ deploy_review:
   image: docker:17
   dependencies:
     - build_job
-  only:
-    - develop
   tags:
     - docker