Website: Update Flannel manifest URL

[atoato88]

This is a...

• [ ] Feature Request
• [x] Bug Report

Problem:
Deployment cluster with Flannel is stuck at "Installing a pod network add-on" section.

As of now, instruction of this page1(at Flannel tab) say following.

kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml

But this manifest is old. Toleration of DaemonSet is insufficient.
As a result of this, kube-flannel Pod doesn't run.

Proposed Solution:
At coreos/flannel2 repository, issue3 exists and PR is merged4.

Should change instructions at kubectl apply -f
from

https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml

to

https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml

Page to Update:
https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/#pod-network

v1.12.0

[tengqm]

Should we wait for the next release of flannel?

[neolit123]

@tengqm @atoato88

Should we wait for the next release of flannel?

the 0.11.0 release of flannel is nowhere in sight.
i agree with this change as it would unbreak flannel for k8s 1.12.

i think the tab should move to a single link instead of having the two links - one for 0.10.0 and one with a SHA having the multi-arch support.

the link:
https://raw.githubusercontent.com/coreos/flannel/bc79dd1505b0c8681ece4de4c0d86c5cd2643275/Documentation/kube-flannel.yml
is correct.

@atoato88 would you be able to send a PR for this?

[neolit123]

/kind bug
/priority critical-urgent
/sig cluster-lifecycle

[atoato88]

@neolit123 OK, I'll create PR.

[neolit123]

thank you! please mention me on the PR.