Jenkins docker_login ansible playbook : Permission denied - docker

Question

I would like to copy docker container inside docker registry with Jenkins.
When I execute Ansible playbook i get :
"msg": "Error connecting: Error while fetching server API version: ('Connection aborted.', error(13, 'Permission denied'))"
I suppose that ansible is run under user jenkins because this link, and because of the log file:
<127.0.0.1> ESTABLISH LOCAL CONNECTION FOR USER: jenkins
Because the ansible playbook try to do a docker_login, I understand that user jenkins need to be able to connect to docker.
So I add jenkins to a docker users :
I don't understand why the permission is denied
The whole log jenkins file:
TASK [Log into Docker registry]
************************************************
task path: /var/jenkins_home/workspace/.../build_docker.yml:8
Using module file /usr/lib/python2.7/dist-
packages/ansible/modules/core/cloud/docker/docker_login.py
<127.0.0.1> ESTABLISH LOCAL CONNECTION FOR USER: jenkins
<127.0.0.1> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo ~/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502 `" && echo ansible-tmp-1543388409.78-179785864196502="` echo ~/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502 `" ) && sleep 0'
<127.0.0.1> PUT /tmp/tmpFASoHo TO /var/jenkins_home/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502/docker_login.py
<127.0.0.1> EXEC /bin/sh -c 'chmod u+x /var/jenkins_home/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502/ /var/jenkins_home/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502/docker_login.py && sleep 0'
<127.0.0.1> EXEC /bin/sh -c '/usr/bin/python /var/jenkins_home/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502/docker_login.py; rm -rf "/var/jenkins_home/.ansible/tmp/ansible-tmp-1543388409.78-179785864196502/" > /dev/null 2>&1 && sleep 0'
fatal: [localhost]: FAILED! => {
"changed": false,
"failed": true,
"invocation": {
"module_args": {
"api_version": null,
"cacert_path": null,
"cert_path": null,
"config_path": "~/.docker/config.json",
"debug": false,
"docker_host": null,
"email": null,
"filter_logger": false,
"key_path": null,
"password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER",
"reauthorize": false,
"registry_url": "https://registry.docker....si",
"ssl_version": null,
"timeout": null,
"tls": null,
"tls_hostname": null,
"tls_verify": null,
"username": "jenkins"
},
"module_name": "docker_login"
},
"msg": "Error connecting: Error while fetching server API version: ('Connection aborted.', error(13, 'Permission denied'))"
}
to retry, use: --limit #/var/jenkins_home/workspace/.../build_docker.retry
The whole ansible playbook
---
- hosts: localhost
vars:
git_branch: "{{ GIT_BRANCH|default('development') }}"
tasks:
- name: Log into Docker registry
docker_login:
registry_url: https://registry.docker.....si
username: ...
password: ....

Answer 1

If anyone have the same problem I found the solution,...
My registry doesn't have valid HTTPS certificate. So, you need to add
{
"insecure-registries" : [ "https://registry.docker.....si" ]
}
inside /etc/docker/daemon.json