Add Dockerfile

Dockerfile

@@ -0,0 +1,17 @@
+FROM openjdk:alpine
+
+LABEL maintainer "Jeff Sippel <[email protected]>"
+
+RUN apk update && apk upgrade
+
+RUN addgroup -g 9000 -S code && \
+  adduser -S -G code app
+USER app
+
+COPY codeclimate-scalastyle-assembly-0.1.0.jar /usr/src/app/engine-core.jar
+COPY src/main/resources/docker /usr/src/app
+
+WORKDIR /code
+VOLUME /code
+
+CMD ["/usr/src/app/bin/scalastyle"]

README.md

@@ -8,6 +8,12 @@
 1. Install [sbt](http://www.scala-sbt.org/)
 2. Run `sbt docker`
 
+
+### Building release docker image
+1. Run `sbt assembly && cp target/scala-2.12/codeclimate-scalastyle-assembly-<version>.jar ./`.
+   This will create assembled jar with all dependencies.
+2. Run `docker build -t codeclimate/codeclimate-scalastyle .`    
+
 ### Installation
 
 1. If you haven't already, [install the Code Climate CLI](https://github.com/codeclimate/codeclimate).

build.sbt

@@ -34,7 +34,7 @@ imageNames in docker := Seq(
   ImageName(
     namespace = Some("codeclimate"),
     repository = name.value,
-    tag = Some("v" + version.value)
+    tag = Some(version.value)
   )
 )
 

src/main/resources/docker/engine.json

@@ -2,10 +2,10 @@
   "name": "scalastyle",
   "description": "Run scalastyle checks",
   "maintainer": {
-    "name": "Ivan Luzyanin",
-    "email": "ivan@acorns.com"
+    "name": "Jeff Sippel",
+    "email": "jsippel@acorns.com"
   },
   "languages" : ["Scala"],
-  "version": "v0.1.0",
+  "version": "0.1.0",
   "spec_version": "0.0.1"
 }