fix: do not restart addon-manager if a reboot is required

[CecileRobertMichon]

Reason for Change:

Related to #3668 (comment)
Seeing some clusters fail with exit 36 recently where CSE failed to get the addon-manager pod as part of ensureAddons().

+ for i in $(seq 1 $retries)
+ timeout 30 /usr/local/bin/kubectl --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n kube-system
+ '[' 120 -eq 120 ']'
+ echo Executed '"/usr/local/bin/kubectl' --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n 'kube-system"' 120 times
Executed "/usr/local/bin/kubectl --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n kube-system" 120 times

This PR might not fix the underlying root cause but we should not be getting/restarting pods when the vm is marked for reboot so this PR addresses that.

/cc @mboersma @Michael-Sinz

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[acs-bot]

@CecileRobertMichon: GitHub didn't allow me to request PR reviews from the following users: Michael-Sinz.

Note that only Azure members and repo collaborators can review this PR, and authors cannot review their own PRs.

In response to this:

Reason for Change:

Related to #3668 (comment)
Seeing some clusters fail with exit 36 recently where CSE failed to get the addon-manager pod as part of ensureAddons().

+ for i in $(seq 1 $retries)
+ timeout 30 /usr/local/bin/kubectl --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n kube-system
+ '[' 120 -eq 120 ']'
+ echo Executed '"/usr/local/bin/kubectl' --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n 'kube-system"' 120 times
Executed "/usr/local/bin/kubectl --kubeconfig=/home/azureuser/.kube/config get pods -l app=kube-addon-manager -n kube-system" 120 times

This PR might not fix the underlying root cause but we should not be getting/restarting pods when the vm is marked for reboot so this PR addresses that.

/cc @mboersma @Michael-Sinz

Issue Fixed:

Requirements:

• uses conventional commit messages

• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[codecov]

Codecov Report

Merging #3721 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3721   +/-   ##
=======================================
  Coverage   73.16%   73.16%           
=======================================
  Files         147      147           
  Lines       25318    25318           
=======================================
  Hits        18525    18525           
  Misses       5655     5655           
  Partials     1138     1138           

Impacted Files	Coverage Δ
pkg/engine/templates_generated.go	53.42% <ø> (ø)
pkg/api/common/versions.go	96.84% <0.00%> (ø)

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[mboersma]

/lgtm

[jackfrancis]

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon, jackfrancis, mboersma

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• OWNERS [CecileRobertMichon,jackfrancis,mboersma]

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