Kubeinit / kubeinit

Ansible automation to have a KUBErnetes cluster INITialized as soon as possible...

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Execute commands in worker nodes

logeshwaris opened this issue · comments

commented

I am deploying a OKD cluster with 1 master and 2 worker nodes. As of now, I can see that we can execute commands in the service node.
When I tried to executing commands by delegating to the bootstrap node, i was getting the python interpreter error.
Is there any way to execute commands in the bootstrap or worker nodes in ansible playbook?

commented

Hi, tried to execute the below task in kubeinit_okd/tasks/main.yml and getting the below error. When i tried to run the same in separate playbook, it is working fine. Any idea why it throws "/bin/sh: line 1: /usr/bin/python3: No such file or directory\n" ?
I tried setting python_interpreter as well, but no luck.

-  name:  copy local script to destination
  ansible.builtin.copy:
    src: script.sh
    dest: /tmp/script.sh
  vars:
    ansible_user: core
    ansible_ssh_private_key_file: "~/.ssh/okdcluster_id_rsa"
    ansible_ssh_common_args: '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=accept-new'
  delegate_to: 20.0.0.4

Error:
TASK [kubeinit.kubeinit.kubeinit_okd : copy local script to destination] ****************************************************************************
task path: /home/slogeshw/.ansible/collections/ansible_collections/kubeinit/kubeinit/roles/kubeinit_okd/tasks/main.yml:41
Thursday 05 May 2022 23:30:41 +0530 (0:00:00.425) 0:34:05.783 **********
<20.0.0.4> ESTABLISH SSH CONNECTION FOR USER: core
<20.0.0.4> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/home/slogeshw/.ssh/okdcluster_id_rsa"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="core"' -o ConnectTimeout=10 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=accept-new -o ControlPath=/home/slogeshw/.ansible/cp/01cba4ce83 20.0.0.4 '/bin/sh -c '"'"'echo ~core && sleep 0'"'"''
<20.0.0.4> (0, b'/var/home/core\n', b"Warning: Permanently added '20.0.0.4' (ECDSA) to the list of known hosts.\r\n")
<20.0.0.4> ESTABLISH SSH CONNECTION FOR USER: core
<20.0.0.4> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/home/slogeshw/.ssh/okdcluster_id_rsa"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="core"' -o ConnectTimeout=10 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=accept-new -o ControlPath=/home/slogeshw/.ansible/cp/01cba4ce83 20.0.0.4 '/bin/sh -c '"'"'( umask 77 && mkdir -p "echo /var/home/core/.ansible/tmp"&& mkdir "echo /var/home/core/.ansible/tmp/ansible-tmp-1651773642.0561326-2387299-158629332054312" && echo ansible-tmp-1651773642.0561326-2387299-158629332054312="echo /var/home/core/.ansible/tmp/ansible-tmp-1651773642.0561326-2387299-158629332054312" ) && sleep 0'"'"''
<20.0.0.4> (0, b'ansible-tmp-1651773642.0561326-2387299-158629332054312=/var/home/core/.ansible/tmp/ansible-tmp-1651773642.0561326-2387299-158629332054312\n', b'')
Using module file /usr/local/lib/python3.6/site-packages/ansible/modules/stat.py
Pipelining is enabled.
<20.0.0.4> ESTABLISH SSH CONNECTION FOR USER: core
<20.0.0.4> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/home/slogeshw/.ssh/okdcluster_id_rsa"' -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="core"' -o ConnectTimeout=10 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=accept-new -o ControlPath=/home/slogeshw/.ansible/cp/01cba4ce83 20.0.0.4 '/bin/sh -c '"'"'/usr/bin/python3 && sleep 0'"'"''
<20.0.0.4> (127, b'', b'/bin/sh: line 1: /usr/bin/python3: No such file or directory\n')
<20.0.0.4> Failed to connect to the host via ssh: /bin/sh: line 1: /usr/bin/python3: No such file or directory
<20.0.0.4> ESTABLISH SSH CONNECTION FOR USER: core
<20.0.0.4> SSH: EXEC ssh -C -o ControlMaster=auto -o ControlPersist=60s -o 'IdentityFile="/home/slogeshw/.ssh/okdcluster_id_rsa"' -o KbdInteract
thentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o 'User="core"' -o ConnectTimeout=10 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=accept-new -o ControlPath=/home/slogeshw/.ansible/cp/01cba4ce83 20.0.0.4 '/bin/sh -c '"'"'rm -f -r /var/home/core/.ansible/tmp/ansible-tmp-1651773642.0561326-2387299-158629332054312/ > /dev/null 2>&1 && sleep 0'"'"''
<20.0.0.4> (0, b'', b'')
fatal: [localhost -> 20.0.0.4]: FAILED! => {
"msg": "Failed to get information on remote file (/tmp/script.sh): /bin/sh: line 1: /usr/bin/python3: No such file or directory\n"
}