Publish docker image (#11)

* setup_remote_docker

* Go back to plain golang

* persist to workspace

* Faster iteration

* Add bin/liche to alpine

* Path

* Use Dockerfile.test

.circleci/config.yml

@@ -1,11 +1,13 @@
 version: 2
 jobs:
+
   build:
     docker:
       - image: golang
     working_directory: /go/src/github.com/raviqqe/liche
     steps:
       - checkout
+      - setup_remote_docker
       - run:
           name: Setup
           command: |
@@ -32,3 +34,21 @@ jobs:
       - run:
           name: Install
           command: rake install
+      - persist_to_workspace:
+          root: .
+          paths: [ bin/liche, Dockerfile.test ]
+
+  docker:
+    docker:
+      - image: docker:17.05.0-ce-git
+    steps:
+      - attach_workspace: { at: . }
+      - setup_remote_docker
+      - run: docker build -f Dockerfile.test -t raviqqe/docker-liche:latest .
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - build
+      - docker: { requires: [ build ] }

Dockerfile

@@ -0,0 +1,10 @@
+FROM golang:latest
+RUN CGO_ENABLED=0 GOOS=linux go get -u github.com/raviqqe/liche
+
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+WORKDIR /root/
+COPY --from=0 /go/bin/liche /go/bin/liche
+ENV PATH "/go/bin:$PATH"
+RUN liche --help
+CMD liche

Dockerfile.test

@@ -0,0 +1,7 @@
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+WORKDIR /root/
+ADD bin/liche /go/bin/liche
+ENV PATH "/go/bin:$PATH"
+RUN liche --help
+CMD liche

rakefile.rb

@@ -9,7 +9,7 @@ task :deps do
 end
 
 task :build do
-  sh 'go build -o bin/liche'
+  sh 'CGO_ENABLED=0 GOOS=linux go build -o bin/liche'
 end
 
 task :fast_unit_test do