Add default endpoint used by Docker for Mac

[davidxia]

No description provided.

[mattnworb]

👍

[aantono]

Trying to use DOCKER_HOST=unix:///var/run/docker.sock mvn -X docker:build still fails with

Caused by: java.lang.IllegalArgumentException: An HTTPS URI for DOCKER_HOST must be provided to use Docker client certificates
    at com.spotify.docker.client.DefaultDockerClient.<init>(DefaultDockerClient.java:303)
    at com.spotify.docker.client.DefaultDockerClient.<init>(DefaultDockerClient.java:294)
    at com.spotify.docker.client.DefaultDockerClient$Builder.build(DefaultDockerClient.java:1857)
    at com.spotify.docker.AbstractDockerMojo.execute(AbstractDockerMojo.java:127)
    ... 23 more

Adding DOCKER_TLS_VERIFY=0 didn't seem to help either.

Using docker-maven-plugin version 0.4.10

---

Update: Looks like removing ~/.docker directory solved that problem.

[jangalinski]

I am using 0.4.10, the osx docker 1.11.2-beta15 and tried to set DOCKER_HOST as above. But it still fails