don't install coffeescript in runtime image

Signed-off-by: Petros Angelatos <petrosagg@gmail.com>

Dockerfile.build.template

@@ -14,8 +14,7 @@ RUN apt-get update \
 		python \
 		rsync \
 		wget \
-	&& rm -rf /var/lib/apt/lists/ \
-	&& npm install -g coffee-script
+	&& rm -rf /var/lib/apt/lists/
 
 ENV DOCKER_COMPOSE_VERSION 1.7.1
 
@@ -41,12 +40,17 @@ RUN set -x \
 
 COPY package.json /usr/src/app/
 
-RUN JOBS=MAX npm install --unsafe-perm --production --no-optional \
-	&& npm dedupe
+# First install devDependencies too in order to run the build
+RUN JOBS=MAX npm install --unsafe-perm
 
 COPY src /usr/src/app/src
 
-RUN coffee -c src
+RUN npm run build
+
+# Re-install just production modules. This should be fast due to npm cache from previous layer
+RUN rm -rf node_modules \
+	&& JOBS=MAX npm install --unsafe-perm --production --no-optional \
+	&& npm dedupe
 
 # Remove various uneeded filetypes in order to reduce space
 RUN find . -path '*/coverage/*' -o -path '*/test/*' -o -path '*/.nyc_output/*' \

package.json

@@ -3,6 +3,7 @@
   "version": "2.1.1",
   "scripts": {
     "start": "./entry.sh",
+    "build": "coffee -c src",
     "lint": "resin-lint src/"
   },
   "dependencies": {
@@ -11,7 +12,6 @@
     "bluebird": "^2.9.24",
     "body-parser": "^1.12.0",
     "buffer-equal-constant-time": "^1.0.1",
-    "coffee-script": "~1.10.0",
     "docker-delta": "0.0.11",
     "docker-progress": "^2.1.0",
     "docker-toolbelt": "^1.0.0",
@@ -40,6 +40,7 @@
     "node": "0.10.22"
   },
   "devDependencies": {
+    "coffee-script": "~1.10.0",
     "resin-lint": "^1.3.1"
   }
 }