title: Failed to connect to the host via ssh: Host key verification failed.\r\n
body: <p>Getting error when i try to connect to hosts in ansible</p>
  
  <p>I am able to ping ssh_connection in local host (ansible), but not in jenkins pipeline build.</p>
  
  <p>I have tried almost everything.</p>
  
  <pre><code>----------
  [FPipeline] Running shell script
  + ansible all -m ping -vvv
  ansible 2.4.0.0
  config file = /var/lib/jenkins/workspace/FPipeline/ansible.cfg
  configured module search path = 
  [u'/var/lib/jenkins/.ansible/plugins/modules', 
  u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /bin/ansible
  python version = 2.7.5 (default, Aug  4 2017, 00:39:18) [GCC 4.8.5 20150623 
  (Red Hat 4.8.5-16)]
  Using /var/lib/jenkins/workspace/FPipeline/ansible.cfg as config file
  Parsed /etc/ansible/hosts inventory source with ini plugin
  META: ran handlers
  Using module file /usr/lib/python2.7/site-
  packages/ansible/modules/system/ping.py
  &lt;localhost&gt; ESTABLISH SSH CONNECTION FOR USER: None
  &lt;localhost&gt; SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 
  KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-
  mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 
  ConnectTimeout=10 -o ControlPath=/var/lib/jenkins/.ansible/cp/8a5a4c6a60 
  localhost '/bin/sh -c '"'"'echo ~ &amp;&amp; sleep 0'"'"''
  Using module file /usr/lib/python2.7/site-
  packages/ansible/modules/system/ping.py
  &lt;192.168.219.131&gt; ESTABLISH SSH CONNECTION FOR USER: None
  &lt;192.168.219.131&gt; SSH: EXEC ssh -C -o ControlMaster=auto -o 
  ControlPersist=60s -o KbdInteractiveAuthentication=no -o 
  PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o 
  PasswordAuthentication=no -o ConnectTimeout=10 -o 
  ControlPath=/var/lib/jenkins/.ansible/cp/81147ff3f7 192.168.219.131 '/bin/sh 
  -c '"'"'echo ~ &amp;&amp; sleep 0'"'"''
  &lt;192.168.219.131&gt; (255, '', 'Host key verification failed.\r\n')
  server1 | UNREACHABLE! =&gt; {
  "changed": false, 
  "msg": "Failed to connect to the host via ssh: Host key verification  
  failed.\r\n", 
  "unreachable": true
  }
  &lt;localhost&gt; (255, '', 'Host key verification failed.\r\n')
  localhost | UNREACHABLE! =&gt; {
  "changed": false, 
  "msg": "Failed to connect to the host via ssh: Host key verification 
  failed.\r\n", 
  "unreachable": true
  }
  
  ----------
  </code></pre>
  
  <p>Can you please help me regarding this...</p>