How to execute an ansible playbook using a jenkins pipeline script?

Question

We developed declarative pipeline code to execute an Ansible playbook. We tested the playbook from CLI and it is working properly. My playbook actually performs some shell commands on remote server.

SSH configuration between two servers has been done: I have generated an ssh key and copied it to the remote server, and I am able to ping the server.

The Error msg:

ansible-playbook /var/lib/jenkins/workspace/test1/playbook2.yml -i 
/var/lib/jenkins/workspace/test1/inventory.ini -b --become-user root
[WARNING] Ansible is in a world writable directory 
(/var/lib/jenkins/workspace/test1), ignoring it as an ansible.cfg source

fatal: [17.14.69.21]: UNREACHABLE! => {"changed": false, "msg": "Failed to 
connect to the host via ssh: Permission denied (publickey,gssapi- 
keyex,gssapi-with-mic,password).\r\n", "unreachable": true}
[17.14.69.21]: 
FATAL: command execution failed
hudson.AbortException: Ansible playbook execution failed.

I have given sudo access to Jenkins user and Jenkins is running as Jenkins user.

Solution

If you have Jenkins user public key, on your target hosts authorized keys file, for the user you want to login as, ssh connection authorization should work.

This is an example of Jenkinsfile step.

ansiblePlaybook colorized: true, installation: 'Ansible', inventory: 'inventory', playbook: 'playbook.yml',tags: "" , skippedTags: "", extras: "--extra-vars ' hst=targetHost "

This is Ansible Inventory example. You can define the args at the host level as well.

[targetHost]
17.14.69.21 ansible_ssh_user=sshuser

[all:vars]
ansible_connection=ssh
ansible_ssh_common_args='-o StrictHostKeyChecking=no -oHostKeyAlgorithms=+ssh-dss'

Comments

[Tensibai]

Please avoid using the answer section as comment, this is not an answer to the question and --become-user root is to tell ansible to sudo to user root before doing anything else, the solution is not to allow root login as it won't fix the login problem anyway..

[Samy Omar]

Hi, Finally i did it... Added ssh key into known_host jenkins workspace. And in inventory host given the servers details in below format. [jboss] 192.xx.xx.xx. ansible_ssh_pass=xxxxx123 ansible_ssh_user=user1

[hakkican]

In inventory file I would not put user/password. You can direct keys path in that file. "--become-user root" why do you need this ?

[Samy Omar]

I dont know the logc behind it. I also tried without mentioning user/password. It doesnt worked for me. After executing this i tried multiple possibilities still it only worked when i mention user/password.