Add Dockerfile

Author: dunglas

Dockerfile

@@ -0,0 +1,15 @@
+FROM golang:alpine
+
+RUN mkdir -p /go/src/github.com/dunglas/stack2slack
+WORKDIR /go/src/github.com/dunglas/stack2slack
+ADD . /go/src/github.com/dunglas/stack2slack
+
+RUN apk add --no-cache --virtual .build-deps git \
+    && go get \
+    && go install \
+    && apk del .build-deps \
+    && rm -rf /go/pkg \
+    && rm -rf /go/src \
+    && rm -rf /go/cache/apk/*
+
+ENTRYPOINT ["/go/bin/stack2slack"]

README.md

@@ -8,17 +8,23 @@ in a dedicated channel of the Slack of [Les-Tilleuls.coop](https://les-tilleuls.
 
 [![Go Report Card](https://goreportcard.com/badge/github.com/dunglas/stack2slack)](https://goreportcard.com/report/github.com/dunglas/stack2slack)
 [![Build Status](https://travis-ci.org/dunglas/stack2slack.svg?branch=master)](https://travis-ci.org/dunglas/stack2slack)
+[![Docker Automated build](https://img.shields.io/docker/automated/dunglas/stack2slack.svg)](https://hub.docker.com/r/dunglas/stack2slack/)
 
 ## Installing
 
-This bot is written in [Go](https://golang.org/) (golang), you need a proper install of Go to compile it from sources.
+The easiest way to get started is to use the official [Docker](https://www.docker.com/) image:
 
-1. [Create new Slack bot](https://my.slack.com/services/new/bot) and grab the generated API token
-2. Clone this repository: `git clone https://github.com/dunglas/stack2slack.git`
-3. Get the  dependencies `go get`
-4. Compile the app: `go build`
-5. Start the daemon: `DEBUG=1 SLACK_API_TOKEN=<your-API-token> TAG_TO_CHANNEL='{"stackoverflow-tag": "slack-channel"}' ./stack2slack`
-6. Finally, you need to invite the bot in channels it will post: `/invite @bot-name`
+1. [Register a new Slack bot](https://my.slack.com/services/new/bot) and grab the generated API token
+2. Start the daemon: `docker run -e DEBUG=1 -e SLACK_API_TOKEN=<your-API-token> -e TAG_TO_CHANNEL='{"stackoverflow-tag": "slack-channel"}' dunglas/stack2slack`
+6. Finally, invite the bot in channels it will post: `/invite @bot-name`
+
+## Building from Sources
+
+This bot is written in [Go](https://golang.org/) (golang), you need a proper install of it to compile the sources.
+
+1. Clone this repository: `git clone https://github.com/dunglas/stack2slack.git`
+2. Get the  dependencies `go get`
+3. Compile the app: `go build`
 
 ## Credits