[flatcar] add python dependency check for helm-apps

[palmeXx]

What type of PR is this?
/kind bug

What this PR does / why we need it:

helm-apps require PyYAML https://docs.ansible.com/ansible/latest/collections/kubernetes/core/helm_module.html as a dependency on the node where the Helm binaries are executed. The setup process does not install PyYAML during the OS bootstrapping, which can cause helm apps to fail due to missing dependencies.

 TASK [helm-apps : Add Helm repositories] ******************************************************************************************************************************************************************
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ModuleNotFoundError: No module named 'yaml'
[WARNING]: Module did not set no_log for pass_credentials
failed: [cluster-k8s-az1-master1] (item={'name': 'kubelet-csr-approver', 'url': 'https://postfinance.github.io/kubelet-csr-approver'}) => {"ansible_loop_var": "item", "changed": false, "item": {"nam
e": "kubelet-csr-approver", "url": "https://postfinance.github.io/kubelet-csr-approver"}, "msg": "Failed to import the required Python library (yaml) on cluster-k8s-az1-master1's Python /opt/bin/pyt
hon. Please read the module documentation and install it in the appropriate location. If the required library is installed, but Ansible is using the wrong Python interpreter, please consult the documenta
tion on ansible_python_interpreter"}

The problem was encountered when activating kubelet_rotate_server_certificates with Flatcar as the operating system and kubespray release v2.22.0.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[flatcar] add python dependency check for helm-apps

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: palmeXx / name: palme (c3ef779, a1cc976)

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[k8s-ci-robot]

Hi @palmeXx. Thanks for your PR.

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[MrFreezeex]

Hi @palmeXx, thanks for your contribution however there is already a PR open for that: #10165

[palmeXx]

Hi @palmeXx, thanks for your contribution however there is already a PR open for that: #10165
Hi, i missed this pr.

Issue: This does not address the dependencies on Flatcar as there is no package manager available for installing the pyyaml package.

[MrFreezeex]

Hmmm indeed it does not, could you then make this flatcar specific? IMO installing system wide packages via pip is a rather bad idea but I am fine it it's only a workaround for flatcar and possibly other distros that doesn't package it.

[palmeXx]

i'm with you...
I will prepare a solution

[MrFreezeex]

FYI the other PR has been merged so please rebase your commit and also squash them if necessary and make it obvious it's for flatcar in the first commit title/PR title (or distros where pyyaml is not packaged if you find any and willing to do that, which is fine if you don't).

[MrFreezeex]

Thanks for the contribution and all the change :D!
/lgtm
/ok-to-test

[MrFreezeex]

/lgtm

[oomichi]

Thanks for your contribution @palmeXx
After reviewing #10204 I guessed we could have the same simple way for Flatcar also.
But that is already discussed in this pull request, so looks good for me.

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: MrFreezeex, oomichi, palmeXx

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