Docker build in CI, use nginx for 'web' image

.gitlab-ci.yml

 stages:
   - test
+  - build
  
 test_api:
   image: ruby:2.5
@@ -16,4 +17,30 @@ test_web:
   script:
     - cd schedules_web
     - yarn
-    - yarn build
\ No newline at end of file
+    - yarn build
+
+build_web:
+  stage: build
+  retry: 2
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+    - mkdir -p /root/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /root/.docker/config.json
+    - /kaniko/executor --context $CI_PROJECT_DIR/schedules_web --dockerfile $CI_PROJECT_DIR/schedules_web/Dockerfile --destination $CI_REGISTRY_IMAGE/web:$CI_COMMIT_TAG
+  only:
+    - tags
+
+build_api:
+  stage: build
+  retry: 2
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
+  script:
+    - mkdir -p /root/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /root/.docker/config.json
+    - /kaniko/executor --context $CI_PROJECT_DIR/schedules_api --dockerfile $CI_PROJECT_DIR/schedules_api/Dockerfile --destination $CI_REGISTRY_IMAGE/api:$CI_COMMIT_TAG
+  only:
+    - tags

docker-cloud.yml

+version: "3.3"
+
+volumes:
+  dbdata:
+
+configs:
+  nginx_conf:
+    file: ./schedules_web/nginx.conf
+
+networks:
+  front:
+  back:
+
+services:
+  api:
+    image: registry.srct.gmu.edu/srct/schedules/api:0.1.0
+    networks:
+      back:
+
+  web:
+    image: registry.srct.gmu.edu/srct/schedules/web:0.1.0
+    networks:
+      front:
+      back:
+    volumes:
+      - ./schedules_web:/web
+    ports:
+      - 8085:80

schedules_api/Dockerfile

@@ -6,6 +6,8 @@ ADD . /api
 
 EXPOSE 3000
 
+ENV RAILS_ENV production
+
 RUN bundle install
 RUN rails db:migrate
 RUN rails db:seed

schedules_web/Dockerfile

 FROM node:9
 
-RUN mkdir /web
+COPY . /web
 WORKDIR /web
-ADD . /web
 
-EXPOSE 8080
+RUN yarn install && yarn run build
 
-RUN yarn
-RUN yarn build
+FROM nginx:1.15.0
+COPY --from=0 /web/dist /web