Add gitlab-ci file clean up dockerfile and docker-compose-staging.yml

.gitlab-ci.yml

+stages:
+  - build
+  - deploy
+
+build:
+  stage: build
+  only:
+    - staging
+  script:
+    - docker-compose -f docker-compose-staging.yml build
+    
+deploy:
+  stage: deploy
+  only:
+    - staging
+  script:
+    - docker-compose -f docker-compose-staging.yml up -d

Dockerfile

@@ -8,9 +8,6 @@ WORKDIR /app/webapp
 # Install npm dependencies
 RUN npm install
 
-# For windows environment, with already a node_modules folder, we need reinstall the node-sass package
-#RUN npm rebuild node-sass
-
 # Building the Angular app /dist i18n
 RUN npm run build-i18n
 

docker-compose-staging.yml

 version: "2"
 
 services:
-  # proxy-elasticsearch:
-  #   image: nginx
-  #   volumes: 
-  #     - ./proxy.conf:/etc/nginx/conf.d/default.conf
-  #   ports: 
-  #     - 8000:80
-
   nginx-app:
     build:
       context: ./
@@ -15,5 +8,4 @@ services:
       - ./webapp-nginx.conf:/etc/nginx/conf.d/default.conf
     ports: 
       - 8080:8080
-  
   
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