Incorporate first round of feedback

docker-compose.yml

@@ -1,22 +1,27 @@
 version: '2'
 services:
-    database:
-      image: mongo:latest
-      ports:
-        - 27017
-      container_name: database
-      restart: always
-    api:
-      build: ./docker/api
-      image: mozilla/ssh_scan_api
-      command: /app/bin/ssh_scan_api
-      ports:
-        - 8000
-      container_name: api
-      restart: always
-    worker:
-      build: ./docker/worker
-      image: mozilla/ssh_scan_worker
-      command: /app/bin/ssh_scan_worker
-      container_name: worker
-      restart: always
+  database:
+    image: mongo:latest
+    ports:
+      - 27017
+    container_name: database.internal
+    volumes:
+      - mongodb:/data/db
+    restart: always
+  api:
+    build: ./docker/api
+    command: /app/bin/ssh_scan_api
+    ports:
+      - 8000
+    environment:
+      - database.host=database.internal
+    container_name: api.internal
+    link: database.internal
+    restart: always
+  worker:
+    build: ./docker/worker
+    environment:
+      - api.host=api.internal
+    command: /app/bin/ssh_scan_worker
+    container_name: worker
+    restart: always

docker/api

@@ -1,4 +1,4 @@
-FROM ruby
+FROM ruby:latest
 MAINTAINER Jonathan Claudius
 ENV PROJECT=github.com/mozilla/ssh_scan_api
 
@@ -7,5 +7,4 @@ ADD . /app
 WORKDIR /app
 
 RUN gem install bundler
-RUN bundle install
-CMD /app/bin/ssh_scan_api
+RUN bundle install

docker/worker

@@ -1,4 +1,4 @@
-FROM ruby
+FROM ruby:latest
 MAINTAINER Jonathan Claudius
 ENV PROJECT=github.com/mozilla/ssh_scan_api
 
@@ -7,5 +7,4 @@ ADD . /app
 WORKDIR /app
 
 RUN gem install bundler
-RUN bundle install
-CMD /app/bin/ssh_scan_worker
+RUN bundle install