Permission Denied while trying to connect to Docke

Question

I am trying to run Jenkins pipeline job in my macbook. I also have docker instance running locally. Initially I got the "docker command not found" error while running the Jenkins Job. I fixed the error by adding a symlink "ln -f -s /Applications/Docker.app/Contents/Resources/bin/* /usr/local/bin"

I also applied these two changes so that jenkins user has the access to the docker directory

1. chmod -R 777 /Users/myUserName/Library/Containers/com.docker.docker/
2. chmod -R 777 /Users/myUserName/Library/Containers/com.docker.helper/

I am getting below errors:

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.27/containers/openjdk:8/json: dial unix /var/run/docker.sock: connect: permission denied [Pipeline] sh [test] Running shell script + docker pull openjdk:8 Warning: failed to get default registry endpoint from daemon (Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.27/info: dial unix /var/run/docker.sock: connect: permission denied). Using system default: https://index.docker.io/v1/ Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.27/images/create?fromImage=openjdk&tag=8: dial unix /var/run/docker.sock: connect: permission denied [Pipeline] } [Pipeline] // node [Pipeline] End of Pipeline ERROR: script returned exit code 1 Finished: FAILURE

Answer 1

There are any ways to solve this issue, I faced it last week, I solved but with docker-compose this setup is replicable to docker, you can create a shared volume that points from the location of docker.sock in your host /var/run/docker.sock to location of docker.sock in your container /var/run/docker.sock. Something like this:

version: '2'
services:
  jenkins:
    build:
      context: ./jenkins
    ports:
      - "8080:8080"
    expose:
      - "8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/bin/docker:/usr/bin/docker
      - /usr/local/bin/docker-compose:/usr/local/bin/docker-compose

  nginx:
    build:
      context: ./nginx
    container_name: "prueba"
    links:
      - jenkins
    ports:
      - "80:80"
    depends_on:
      - jenkins

To works well you have to give permissons of user to the socketsudo chown $USER:$USER /var/run/docker.sock and to the group of docker , as Innocent Anigbo mentioned.

Answer 2

You can try this and worked for me:

docker run --rm -p 8080:8080 -p 4040:4040 -v /var/run/docker.sock:/var/run/docker.sock -v $PWD/jenkins_home:/var/jenkins_home logimethods/jenkins

Answer 3

This is a docker permission issue. Add the jenkins user to docker group as follow:

usermod -aG docker ${USER}