cks: fix token TTL, set it to never expire

[shwstppr]

Description

Fixes #4742

kubeadm init is called with --token-ttl 0
This will allow the token to remain valid forever.

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

Checked token details after k8s cluster deployment;

Container Linux by CoreOS stable (2303.3.0)
Update Strategy: No Reboots
core@t2-master ~ $ sudo kubadm token list
sudo: kubadm: command not found
core@t2-master ~ $ sudo kubeadm token list
TOKEN                     TTL         EXPIRES                USAGES                   DESCRIPTION                                                EXTRA GROUPS
00dec2.178dc8478dbecfc5   <forever>   <never>                authentication,signing   The default bootstrap token generated by 'kubeadm init'.   system:bootstrappers:kubeadm:default-node-token
ul9g7i.jl1ehlghm8apx634   1h          2021-03-03T12:03:15Z   <none>                   Proxy for managing TTL for the kubeadm-certs secret        <none>

[shwstppr]

Explicitly set the base branch to 4.14 in case 4.14.2 is released in future.

@blueorangutan package

[blueorangutan]

@shwstppr a Jenkins job has been kicked to build packages. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result: ✔centos7 ✖centos8 ✔debian. JID-2860

[yadvr]

@blueorangutan test

[blueorangutan]

@rhtyd a Trillian-Jenkins test job (centos7 mgmt + kvm-centos7) has been kicked to run smoke tests

[blueorangutan]

Trillian test result (tid-3646)
Environment: kvm-centos7 (x2), Advanced Networking with Mgmt server 7
Total time taken: 32954 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr4747-t3646-kvm-centos7.zip
Intermittent failure detected: /marvin/tests/smoke/test_internal_lb.py
Intermittent failure detected: /marvin/tests/smoke/test_vm_life_cycle.py
Smoke tests completed. 81 look OK, 2 have error(s)
Only failed tests results shown below:

Test	Result	Time (s)	Test File
test_04_rvpc_internallb_haproxy_stats_on_all_interfaces	Error	190.60	test_internal_lb.py
test_01_migrate_VM_and_root_volume	Error	60.69	test_vm_life_cycle.py
test_02_migrate_VM_with_two_data_disks	Error	48.77	test_vm_life_cycle.py

[Pearl1594]

Code LGTM

[blueorangutan]

Packaging result: ✔️ centos7 ✖️ centos8 ✔️ debian. SL-JID 49