Ansible - Failed to add the host to the list of known hosts

Archives Ansible Developer
1

Hi

i’m trying to run may first playbook with become_user : cftadmin and i got this error msg :

fatal: [ANS_IAWGAP01]: FAILED! => {“changed”: false, “module_stderr”: “Failed to add the host to the list of known hosts (/tmp/$USER/ansible/configuration/known_hosts).\r\nSorry, user C405372 is not allowed to execute ‘/bin/sh -c echo BECOME-SUCCESS-yzuuugnflqcoylvtkjanapdugeokgrat; /usr/bin/python’ as cftadmin on iawgap01.\n”, “module_stdout”: “”, “msg”: “MODULE FAILURE”, “rc”: 1}

i tried pipeline = True in ssh section :

ssh_args = -o GSSAPIAuthentication=yes -o UserKnownHostsFile=/tmp/$USER/ansible/configuration/known_hosts
scp_if_ssh=True
pipelining = true

but i still have the problem …

can someone help me please ?

2

Hi,

  • Is cftadmin user present in both master and node ?- Have you generated ssh key for cftadmin on master and did ssh-copy-id to node system ?
  • Have you set “PasswordAuthentication yes” in /etc/sshd/sshd_config file and restarted sshd service ?
  • Is “ansible all -m ping” returning pong for the node you are are trying to connect ?

I followed the below youtube link to run my first Ansible playbook and it went through smooth.
https://www.youtube.com/watch?v=79xFyOc_eEY

Hope this helps.

3

Looks like the youtube link is not displayed properly in the post because the admin might have removed it. In youtube, you can search for “Ansible Installation & Configuration on AWS | Ansible basics | install & configure Ansible on EC2” topic by Valaxy Technologies.