Mutli-stage docker build

.yarnrc

@@ -0,0 +1 @@
+--ignore-engines true

CHANGELOG.md

@@ -11,7 +11,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 - Use yarn --frozen-lockfile instead of --pure-lockfile
-- Update Dockerfiles
+- Use COS ember-base image and multi-stage build
+  - Notify DevOps prior to merging into master to update Jenkins
 
 
 ## [0.115.0] - 2017-10-27

Dockerfile

@@ -1,56 +1,30 @@
-FROM node:8
-
-RUN apt-get update \
-    && apt-get install -y \
-        git \
-        # Next 2 needed for yarn
-        apt-transport-https \
-        ca-certificates \
-        # watchman
-        build-essential \
-        automake \
-        autoconf \
-        python-dev \
-    && apt-get clean \
-    && apt-get autoremove -y \
-    && rm -rf /var/lib/apt/lists/*
-
-RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
-    && echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list \
-    && apt-get update \
-    && apt-get install -y \
-        yarn \
-    && apt-get clean \
-    && apt-get autoremove -y \
-    && rm -rf /var/lib/apt/lists/*
-
-ENV WATCHMAN_VERSION 4.9.0
-RUN cd /tmp \
-    && git clone https://github.com/facebook/watchman.git \
-    && cd watchman \
-    && git checkout v$WATCHMAN_VERSION \
-    && ./autogen.sh \
-    && ./configure --enable-statedir=/tmp \
-    && make \
-    && make install \
-    && mv watchman /usr/local/bin/watchman \
-    && rm -Rf /tmp/watchman
+### App code
+FROM quay.io/centerforopenscience/ember-base AS app
 
-RUN mkdir -p /code
-WORKDIR /code
-
-COPY ./package.json ./yarn.lock /code/
-RUN yarn --frozen-lockfile --ignore-engines
+COPY ./package.json ./yarn.lock ./.yarnrc ./
+RUN yarn --frozen-lockfile
 
-COPY ./.bowerrc /code/.bowerrc
-COPY ./bower.json /code/bower.json
+COPY ./.bowerrc ./bower.json ./
 RUN ./node_modules/.bin/bower install --allow-root --config.interactive=false
 
-COPY ./ /code/
+COPY ./ ./
 
 ARG GIT_COMMIT=
 ENV GIT_COMMIT ${GIT_COMMIT}
 
-RUN ./node_modules/.bin/ember build --env ${APP_ENV}
+RUN yarn build --environemnt=production
+
+### Dist
+FROM node:8-alpine AS dist
+
+RUN mkdir -p /code
+WORKDIR /code
+
+COPY --from=app /code/dist /code/dist
+
+### Dev
+FROM app AS dev
+
+EXPOSE 4200
 
 CMD ["yarn", "start"]