Spotify docker-maven-plugin can't connect to localhost:2375

Docker Desktop for Mac
1

Expected behavior

I would like to have the maven plugin to be able to do it’s job. It might be a problem with the plugin implementation, (and I have filed a bug). I think some tools depends on DOCKER_HOST to be set

Actual behavior

[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:0.4.5:build (server) on project web-service: Exception caught: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1, localhost/fe80:0:0:0:0:0:0:1%1] failed: Connection refused -> [Help 1]

Could it be that port 2375 needs to be forwarded to localhost?

Information

OS X: version 10.11.4 (build: 15E65)
Docker.app: version v1.11.0-beta6
Running diagnostic tests:
[OK] docker-cli
[OK] Moby booted
[OK] driver.amd64-linux
[OK] vmnetd
[OK] osxfs
[OK] db
[OK] slirp
[OK] menubar
[OK] environment
[OK] Docker
[OK] VT-x
Docker logs are being collected into /tmp/20160414-075248.tar.gz.
Your unique id in bugsnag is: 057F3766-D887-471F-A57F-8D352F2B2857
Please quote this in all correspondence.

Steps to reproduce the behavior

  1. Build a project with maven using the Spotify Docker plugin
    Maven version 3.2.3
    Plugin version 0.4.5
2

Hello

I had the same issue, you just need to
export DOCKET_HOST=unix:///private/var/tmp/docker.sock

and it then work

Hope it helps

1 Like
3

Yes, the plugin should default to the default local socket if DOCKER_HOST is not set - this is an upstream bug.

1 Like
4

minor typo on the variable name. The correct one is:

export DOCKER_HOST=unix:///private/var/tmp/docker.sock
5

I am running into the same problem, but when I set the DOCKER_HOST then I am unable to connect to the docker daemon.

6

It turned out that I was using an older version of the Spotify plugin and I have upgraded to version 0.4.9 and used the following to get it to work:

DOCKER_HOST=unix:///var/run/docker.sock mvn clean install

1 Like
7

Looks like this is no more required with spotify plugin 0.4.13. I recently switch from docker toolbox to docker for mac and I was running a very old version of spotify plugin. Upgrading to 0.4.13 was enough to solve the issue, no need to define DOCKER_HOST variable.

8

I am facing same issue in WIndows, how to set DOCKER_HOST?
IS this a env variable

1 Like
9

@jinnabalu
Which version of spotify plugin are you using? Upgrade to 0.4.13 if you are using older version. For me upgrading to this version was enough to solve the issue.

10

I also have the same problem , i use
Windows 10 and Docker for Windows and no Machines.
When i build from maven i included the spotify plugin version 0.4.13 But still it is not resolved

Connect to localhost:2375
[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:0.4.13:build
Caused by: com.spotify.docker.client.exceptions.DockerException: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect

12

I went into settings for docker and turned on “Expose daemon to tcp://localhost:2375 without TLS” and it started working.

5 Likes
13

This also worked for me: “Expose daemon to tcp://localhost:2375 without TLS”

1 Like
14

export DOCKET_HOST=unix:///private/var/tmp/docker.sock which file should it be set

15

I ran into same issue in windows 10 env. I went to: “Expose daemon to tcp://localhost:2375 without TLS”; switched it off and back on couple of time and the error went away.

1 Like
16

Go to your notification tab, right click the Whale Icon and then click Settings.
In the first page in the very end you will have “Expose daemon tcp://localhost:2375 without TLS” check this box

3 Likes
17

Thanks gowrav27, this saved my bacon. This also works on the new replacement plugin named “dockerfile-maven-plugin”, same problem and solution.

18

Hi Gowrav,

Please can you advise, how to do it through docker
tools for windows?

Thanks
Devd

19

I Havent used the docker tool, I have to play around in it, let me know if this helps Are you trying to connect to a TLS-enabled daemon without TLS?
If not reply back, I will see what I can do

20

Thanks, it works for me! :slight_smile:

21

I’m having the same issue, on Docker Community Edition Version 17.12.0-ce-mac55 (23011).

I want to use @gowrav27 's solution, but when I right click the whale icon in the top menu bar, I see “Preferences” not “Settings”. In “Preferences” I don’t see “Expose daemon tcp://localhost:2375 without TLS”.

Any suggestions/?