Fail on Remove immutable flag from /etc/resolv.conf

[dalekurt]

OS: Ubuntu 22.04
Release: 2024.1.1

Having an issue with this task Remove immutable flag from /etc/resolv.conf. See my terminal output below:

task ansible:run playbook=cluster-prepare
Run Ansible playbook 'cluster-prepare'... continue? [y/N]
y
task: Task "workstation:venv" is up to date
task: Task "ansible:deps" is up to date
task: [ansible:run] /path/to/homelab/.venv/bin/ansible-playbook --inventory /path/to/homelab/ansible/inventory/hosts.yaml /path/to/homelab/ansible/playbooks/cluster-prepare.yaml

PLAY [Prepare System] ********************************************************************************************************************************************************************************************

TASK [Gathering Facts] *******************************************************************************************************************************************************************************************
ok: [worker-3]
ok: [worker-2]
ok: [worker-1]
ok: [control-plane]

TASK [Pausing for 5 seconds...] **********************************************************************************************************************************************************************************
Pausing for 5 seconds
(ctrl+C then 'C' = continue early, ctrl+C then 'A' = abort)
ok: [control-plane]

TASK [Populate service facts] ************************************************************************************************************************************************************************************
ok: [worker-3]
ok: [worker-2]
ok: [worker-1]
ok: [control-plane]

TASK [Locale | Set timezone] *************************************************************************************************************************************************************************************
ok: [worker-3]
ok: [worker-1]
ok: [worker-2]
ok: [control-plane]

TASK [Packages | Install] ****************************************************************************************************************************************************************************************
ok: [worker-3]
ok: [worker-2]
ok: [worker-1]
ok: [control-plane]

TASK [Network Configuration | Set hostname] **********************************************************************************************************************************************************************
ok: [worker-1]
ok: [worker-2]
ok: [worker-3]
ok: [control-plane]

TASK [Network Configuration | Update hosts] **********************************************************************************************************************************************************************
ok: [worker-2]
ok: [worker-1]
ok: [worker-3]
ok: [control-plane]

TASK [Network Configuration | Remove immutable flag from /etc/resolv.conf] ***************************************************************************************************************************************
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: Exception: Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf
fatal: [control-plane]: FAILED! => {"changed": false, "details": "Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf\n", "gid": 103, "group": "systemd-resolve", "mode": "0644", "msg": "chattr failed", "owner": "systemd-resolve", "path": "/run/systemd/resolve/stub-resolv.conf", "size": 934, "state": "file", "uid": 102}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: Exception: Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf
fatal: [worker-1]: FAILED! => {"changed": false, "details": "Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf\n", "gid": 103, "group": "systemd-resolve", "mode": "0644", "msg": "chattr failed", "owner": "systemd-resolve", "path": "/run/systemd/resolve/stub-resolv.conf", "size": 934, "state": "file", "uid": 102}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: Exception: Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf
fatal: [worker-2]: FAILED! => {"changed": false, "details": "Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf\n", "gid": 103, "group": "systemd-resolve", "mode": "0644", "msg": "chattr failed", "owner": "systemd-resolve", "path": "/run/systemd/resolve/stub-resolv.conf", "size": 934, "state": "file", "uid": 102}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: Exception: Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf
fatal: [worker-3]: FAILED! => {"changed": false, "details": "Error while setting attributes: /usr/bin/chattr: Operation not supported while reading flags on /run/systemd/resolve/stub-resolv.conf\n", "gid": 103, "group": "systemd-resolve", "mode": "0644", "msg": "chattr failed", "owner": "systemd-resolve", "path": "/run/systemd/resolve/stub-resolv.conf", "size": 934, "state": "file", "uid": 102}

NO MORE HOSTS LEFT ***********************************************************************************************************************************************************************************************

PLAY RECAP *******************************************************************************************************************************************************************************************************
control-plane              : ok=7    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0
worker-1                   : ok=6    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0
worker-2                   : ok=6    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0
worker-3                   : ok=6    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0

task: Failed to run task "ansible:run": exit status 2

My solution for now has been a little hacky. I deleted the symlink sudo rm /etc/resolv.conf and re-created an empty file touch /etc/resolv.conf. Then re-ran the task

[onedr0p]

You will see this error on Ubuntu because it uses systemd-resolved and probably not compatible since the playbook is geared towards Debian 12 which does not have systemd-resolved.

I would suggest using Debian 12 as there is less junk included than Ubuntu. See these packages I used to remove for example