CODEWITHSUNDEEP
macosdocker
Michael Nelson
Michael Nelson

Reputation: 535

Make Docker for mac listen on a tcp port

I'm trying to get docker-java (https://github.com/docker-java/docker-java) to work with Docker for mac (https://docs.docker.com/docker-for-mac/).

How can I set the equivalent of:

DOCKER_OPTS="-H tcp://127.0.0.1:2375 -H unix:///var/run/docker.sock"

On the mac version of Docker?

Upvotes: 10

Views: 10026

Answers (4)

Rajeev
Rajeev

Reputation: 409

This is probably because you don't have a machine running. 

eval $(docker-machine env default)

If the output is stating that no default machine, then execute,

docker-machine create default --driver virtualbox

This will create a default machine and the connection will be successful.

Upvotes: 0

anilzown
anilzown

Reputation: 1

$ docker info

HTTP Proxy: docker.for.mac.http.internal:3128

HTTPS Proxy: docker.for.mac.http.internal:3129

Registry: https://index.docker.io/v1/

Hope this helps

Upvotes: -3

Marcello Romani
Marcello Romani

Reputation: 3144

There is a related answer which suggests a workaround using socat.

It does indeed work to expose port 2375 on the network:

socat TCP-LISTEN:2375,reuseaddr,fork UNIX-CONNECT:/var/run/docker.sock

Reference: Access Docker daemon Remote api on Docker for Mac

Upvotes: 17

VonC
VonC

Reputation: 1325107

If you are using the last docker for mac beta, according to issue 25064:

~/Library/Containers/com.docker.docker/Data/database/com.docker.driver.amd64-linux is a git database.

Note: if ~/Library/Containers/com.docker.docker/Data/database/ does not contain com.docker.driver.amd64-linux, go to that database/ folder, and do a git reset --hard.

The daemon configuration is under etc/docker/daemon.json, which just uses the config from the Linux configuration file.

You need to change the config and then do a git commit: docker should restart automatically at that point (if not, restart it) with the new configuration.

As mentioned by the OP Michael Nelson in the comments, and detailed in "Docker for Windows" (which has sections relevant for "Docker for Mac")

The VM (Alpine-based) uses OpenRC as its init system.

The Docker init script relies on a /usr/bin/mobyconfig script.
This mobyconfig script requires the kernel to boot with a com.docker.database label specifying the location of the config file or it bails.

The mobyconfig script is able to retrieve network and insecure-registry configuration for the Docker daemon or pick up a config file from /etc/docker/daemon.json.

Upvotes: 3

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