Re: [ansible-project] local_action / delegate_to: 127.0.0.1 fail when they try to use ssh.

[Grant BlahaErath]

local_action didn't work either, but maybe for other reasons.  I have to do more research on my local_action failure, as I'd like to follow best practice.  I was using this commit " 2 improvements to delegate_to" (https://github.com/ansible/ansible/pull/1093) as my guide previously. My confusion came from two things:   - the ansible_connection setting was coming from a section of code I thought was out of scope for the affected playbook, so I didn't look there right away.      - the ansible_connection setting existed long before the the affected playbook was authored, so I didn't go look at older code   - the affected playbook worked without issue for weeks, but something unknown caused a variable from a different group to enter the scope of the affected playbook.  However, since my real goal was to share the negative case to save the next developer a few hours of debugging, I'll state the negative case more precisely so that the goog will pick it up for them. if using:     - delegate_to: 127.0.0.1     - delegate_to: localhost it can fail with an error:     -  Authentication failed! when either appear in your group variables or inventory:     - ansible_connection: ssh     - ansible_connection=ssh The recommended fix is to either:     - remove the ansible_connection setting or:     - use local_action Hopefully this negative learning on my part will save someone some time.  -g On 11/21/13 11:23 PM, Michael DeHaan wrote: Delegate_to was told to use SSH.  Use local_action like we suggested and you will be fine. -- Michael On Nov 21, 2013, at 10:33 PM, "Grant BlaħaErath" <gr...@spryhive.com> wrote: Hi, I have a rare behavior reported earlier, and I want to share it in case a third person encounters it.  This behavior appeared misteriously in previously working code, and it causes ansible to ssh into the localhost running the playbook.  The error I got was "Authentication failed!" I fixed it, and it behaves the same as the issue reported here: https://github.com/ansible/ansible/issues/3174 .  This issue was closed because of non-reproducible case.  I do not have any repo steps, but I have more detail. Here is the task: - name: Generate public key from private key   sudo: no   delegate_to: 127.0.0.1   command: 'ssh-keygen -y -f ../config/ssh/{{sshkey}}'    register: pubkeyresult   changed_when: false Here is the -vvvv from that task: TASK: [boxprep | Generate public key from private key] ************************  <127.0.0.1> ESTABLISH CONNECTION FOR USER: azureuser <127.0.0.1> EXEC ['sshpass', '-d12', 'ssh', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/home/xxx/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'StrictHostKeyChecking=no', '-o', 'Port=22', '-o', 'GSSAPIAuthentication=no', '-o', 'PubkeyAuthentication=no', '-o', 'User=prepuser', '-o', 'ConnectTimeout=10', '127.0.0.1', "/bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-1385089465.95-27966096848090 && chmod a+rx $HOME/.ansible/tmp/ansible-1385089465.95-27966096848090 && echo $HOME/.ansible/tmp/ansible-1385089465.95-27966096848090'"] fatal: [vgrid01] => Authentication failure. It looks like its trying to ssh into 127.0.0.1 with a user account that is only on the target machine.   My inventory looks like this: [boxprep] vgrid01 ansible_ssh_host=myhost  ansible_ssh_user=preconfiguser ansible_ssh_pass=myhostpassword [hdpsolos] vgrid01 ansible_ssh_host=myhost ansible_ssh_user=postconfiguser ansible_ssh_private_key=../path/to/preconfiguration_private_key After I found the original report, I grepped for "ansible_connection" and found it in some group_vars for [hdpsolos].  I commented out the line and delgate_to started working again: TASK: [boxprep | Generate public key from private key] ************************  <127.0.0.1> EXEC ['/bin/sh', '-c', 'mkdir -p $HOME/.ansible/tmp/ansible-1385090296.49-167490580878593 && chmod a+rx $HOME/.ansible/tmp/ansible-1385090296.49-167490580878593 && echo $HOME/.ansible/tmp/ansible-1385090296.49-167490580878593'] <127.0.0.1> REMOTE_MODULE command ssh-keygen -y -f ../config/ssh/preconfig.key <127.0.0.1> PUT /tmp/tmpE2RcBw TO /home/xxx/.ansible/tmp/ansible-1385090296.49-167490580878593/command <127.0.0.1> EXEC ['/bin/sh', '-c', '/usr/bin/python /home/xxx/.ansible/tmp/ansible-1385090296.49-167490580878593/command; rm -rf /home/xxx/.ansible/tmp/ansible-1385090296.49-167490580878593/ >/dev/null 2>&1'] ok: [vgrid01] => {"changed": false, "cmd": ["ssh-keygen", "-y", "-f", "../config/ssh/preconfig.key"], "delta": "0:00:00.029258", "end": "2013-11-21 19:18:16.650485", "item": "", "rc": 0, "start": "2013-11-21 19:18:16.621227", "stderr": "", "stdout": "ssh-rsa ideletedthepubkeyfromthisoutput", "stdout_lines": ["ssh-rsa ideletedthepubkeyfromthisoutput"]} If I uncomment the "ansible_connection: ssh" line, the local_action starts failing again. This code has worked for weeks and weeks.  Now it failed.  Further, the playbook running the task operated against [boxprep] but was affected by the setting in [hdpsolo]'s group_vars.   I don't really need the ansible_connection: ssh value, it was a leftover from my inexperience with ansible.  So I'm good to go, but maybe this will help someone in the future.  I recommend greping your entire working directory to find the setting.  I had forgotten ever using it. -g -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to a topic in the Google Groups "Ansible Project" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/ansible-project/jHJazDG_moE/unsubscribe. 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