Adds links support for the target container.

blendle · Apr 9, 2015 · 20b9366 · 20b9366
1 parent 196fa2e
commit 20b9366
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Showing 3 changed files with 20 additions and 11 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -10,12 +10,14 @@ ENV IMAGE ubuntu
 ENV CONTAINER_NAME ubuntu-test
 #ENV CMD sleep 500
 
+
 #ENV USERNAME you
 #ENV PASSWORD secret
 
+#ENV LINKS "your-db:db something-redis:redis"
 ENV PASS_ENV PASS_ENV
 
-
+EXPOSE 8080
 WORKDIR /gopath/src/app
 ADD . /gopath/src/app/
 

diff --git a/README.md b/README.md
@@ -22,13 +22,14 @@ docker run -P -v /var/run/docker.sock:/var/run/docker.sock -e ENDPOINT=/secret -
 
 The go script uses these environment variables as config:
 
-| ENV            | Required | Default                     | Description                                                                               |
-| -------------- |--------- |---------------------------- |------------------------------------------------------------------------------------------ |
-| PASSWORD       | true     |                             | Your dockerhub username when pulling an image                                             |
-| USERNAME       | true     |                             | Your dockerhub password when pulling an image                                             |
-| DOCKERSOCKET   | true     | unix:///var/run/docker.sock | The URI used to connect to the Docker host                                                |
-| ENDPOINT       | true     | /                           | The __secret__ endpoint that triggers the deploy (CHANGE THIS!)                           |
-| IMAGE          | true     | ubuntu                      | The image name to pull and re-create                                                      |
-| CONTAINER_NAME | true     | ubuntu-test                 | The name of the instance container to kill and start again                                |
-| CMD            | false    |                             | The command to run inside the deployed container, can be empty                            |
-| PASS_ENV       | false    | PASS_ENV                    | A space seperated list of environment variables to pass on to the newly created container |
+| ENV            | Default                     | Description                                                                               |
+| -------------- | --------------------------- | ----------------------------------------------------------------------------------------- |
+| PASSWORD       |                             | Your dockerhub username when pulling an image                                             |
+| USERNAME       |                             | Your dockerhub password when pulling an image                                             |
+| DOCKERSOCKET   | unix:///var/run/docker.sock | The URI used to connect to the Docker host                                                |
+| ENDPOINT       | /                           | The __secret__ endpoint that triggers the deploy (CHANGE THIS!)                           |
+| IMAGE          | ubuntu                      | The image name to pull and re-create                                                      |
+| CONTAINER_NAME | ubuntu-test                 | The name of the instance container to kill and start again                                |
+| CMD            |                             | The command to run inside the deployed container, can be empty                            |
+| PASS_ENV       | PASS_ENV                    | A space seperated list of environment variables to pass on to the newly created container |
+| LINKS          |                             | Links for the docker container, format is "container:alias" seperated by space            |
diff --git a/main.go b/main.go
@@ -48,6 +48,12 @@ func main() {
 	}
 	create := docker.CreateContainerOptions{Name: containerName, Config: &config}
 	hostConfig := docker.HostConfig{PublishAllPorts: true}
+
+	links := os.Getenv("LINKS")
+	if len(links) != 0 {
+		hostConfig.Links = strings.Split(links, " ")
+	}
+
 	deploy := make(chan int, 100)
 
 	go func() {