Build, tag and push images via CI

[refs #a604d5dbc223]

.circleci/config.yml

@@ -21,5 +21,16 @@ jobs:
       - run:
           name: Running the test suite
           command: ./scripts/run-specs.sh
+      - run:
+          name: Signing in to Docker Hub
+          command: docker login -u $DOCKER_USER -p $DOCKER_PASS
+      - run:
+          name: Building and pushing images
+          command: |
+            set -e
+            export COMPOSE_FILE=docker-compose.build.yml
+            export GIT_SHA=`git rev-parse HEAD`
+            docker-compose build --pull
+            docker-compose push
       - store_artifacts:
           path: /tmp/artifacts

docker-compose.build.yml

@@ -0,0 +1,27 @@
+version: '3.3'
+
+services:
+  current:
+    image: jfahrer/demo_web_app:${GIT_SHA}
+    build:
+      context: .
+      args:
+        PREPARE_DATABASE: "true"
+        WAIT_FOR_POSTGRES: "false"
+
+  latest:
+    image: jfahrer/demo_web_app:latest
+    build:
+      context: .
+      args:
+        PREPARE_DATABASE: "true"
+        WAIT_FOR_POSTGRES: "false"
+
+  wait_for_pg:
+    image: jfahrer/demo_web_app:wait_for_pg
+    build:
+      context: .
+      args:
+        PREPARE_DATABASE: "true"
+        WAIT_FOR_POSTGRES: "true"
+