feat(docker): Shrink Docker image size

Dockerfile-build

@@ -1,19 +1,19 @@
-FROM node:4.5.0
+FROM mhart/alpine-node:4.7.2
 
-RUN groupadd --gid 10001 app && \
-    useradd --uid 10001 --gid 10001 --home /app --create-home app
+RUN addgroup -g 10001 app && \
+    adduser -D -G app -h /app -u 10001 app
+WORKDIR /app
+
+# S3 bucket in Cloud Services prod IAM
+ADD https://s3.amazonaws.com/dumb-init-dist/v1.2.0/dumb-init_1.2.0_amd64 /usr/local/bin/dumb-init
+RUN chmod +x /usr/local/bin/dumb-init
+ENTRYPOINT ["/usr/local/bin/dumb-init", "--"]
 
 USER app
 
-WORKDIR /app
-
+COPY npm-shrinkwrap.json npm-shrinkwrap.json
 COPY package.json package.json
 
-RUN npm install && \
-    npm cache clear && \
-    rm -rf ~app/.node-gyp ~app/.npm
+RUN npm install --production && rm -rf ~app/.npm /tmp/*
 
 COPY . /app
-
-ENTRYPOINT ["/app/scripts/docker-exec.sh"]
-CMD ["test"]

Dockerfile-test

@@ -0,0 +1,2 @@
+FROM fxa-basket-proxy:build
+RUN npm install

circle.yml

@@ -21,11 +21,12 @@ dependencies:
         "$CIRCLE_BUILD_URL"
         | tee config/version.json version.json
 
-    - docker build -f Dockerfile-build -t app:build .
+    - docker build -f Dockerfile-build -t fxa-basket-proxy:build .
+    - docker build -f Dockerfile-test -t fxa-basket-proxy:test .
 
 test:
   override:
-    - docker run app:build test
+    - docker run fxa-basket-proxy:test npm test
 
 # appropriately tag and push the container to dockerhub
 deployment:
@@ -34,7 +35,7 @@ deployment:
     commands:
       - "[ ! -z $DOCKERHUB_REPO ]"
       - docker login -e "$DOCKER_EMAIL" -u "$DOCKER_USER" -p "$DOCKER_PASS"
-      - "docker tag app:build ${DOCKERHUB_REPO}:latest"
+      - "docker tag fxa-basket-proxy:build ${DOCKERHUB_REPO}:latest"
       - "docker push ${DOCKERHUB_REPO}:latest"
 
   hub_releases:
@@ -44,6 +45,6 @@ deployment:
       - "[ ! -z $DOCKERHUB_REPO ]"
       - docker login -e "$DOCKER_EMAIL" -u "$DOCKER_USER" -p "$DOCKER_PASS"
       - "echo ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
-      - "docker tag app:build ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
+      - "docker tag fxa-basket-proxy:build ${DOCKERHUB_REPO}:${CIRCLE_TAG}"
       - "docker images"
       - "docker push ${DOCKERHUB_REPO}:${CIRCLE_TAG}"

scripts/docker-exec.sh

@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-if [ "$1" == "test" ]; then
-  exec npm test
-elif [ "$1" == "web" ]; then
-  exec node bin/basket-proxy-server.js
-elif [ "$1" == "worker" ]; then
-  exec node basket-event-handler.js
-else
-  echo "unknown mode: $1"
-  exit 1
-fi