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Description of problem:

distros/rhel.py has no default value of init_cmd set, as a result it defaults to the global value of "service" instead of sytemctl https://github.com/canonical/cloud-init/blob/5147e8d4764e368ab8ccea7433b02e4ff9d6c901/cloudinit/distros/__init__.py#L78

The 'service' command helper is provided by the initscripts rpm, which is not called out as a dependency. As a result if cloud-init tries to restart any services, it fails out with a backtrace due the missing service command if the initscripts rpm is not installed

Version-Release number of selected component (if applicable):
cloud-init-21.1-19.el9

How reproducible:
Always

Steps to Reproduce:
1. Create an image without the initscripts rpm
2. Try to run any module that restarts a service (I used cc_set_passwords for ssh configuration)


Actual results:
Cloud-init does not succeed

Expected results:
Cloud-init should succeed always

Additional info:

This issue can be reproduced with cloud-init 21.1 and previous versions, and it has been fixed in 22.1
See upstream PR  https://github.com/canonical/cloud-init/pull/1074


@Emanuele, @Eduardo
how about creating z-stream bugs for RHEL 9.0 and all RHEL 8.* which is <= 8.6?

@Anish

Thanks for reporting this issue, we will handle it.

Since the issue cannot be reproduced in rhel 9.1 (upstream patch is already present), I am closing this BZ.
Clones will handle all other releases (9.0, 8.6, 8.4, 8.2).

Thank you,
Emanuele