update kubelet hostname override

[ryane]

• Installs cleanly on a fresh build of most recent master branch
• Upgrades cleanly from the most recent release
• Updates documentation relevant to the changes

This or #1374 is sufficient to fix at least one of the problems in #1367 but both together is probably better.

[BrianHicks]

Did you just not mark the "upgrade" because you're not sure? Because it looks like that'd upgrade just fine to me.

[ryane]

Yeah, I tend to only mark it if I actually tested it but that's probably not sustainable. I agree, it looks like it will upgrade ok

[andreimc]

@ryane I will test this fix on vagrant later today let you know if it fixes the issue

[andreimc]

@ryane still getting 502 with this merged in.

[andreimc]

I get the following

TASK: [kubernetes-addons | create or update dashboard] ************************
failed: [control-01] => {"failed": true}
msg: error running kubectl (/bin/kubectl --server=http://localhost:8085/ --namespace=kube-system create --filename=/etc/kubernetes/manifests/kubernetes-dashboard.yaml) command (rc=1): replicationcontroller "kubernetes-dashboard" created

FATAL: all hosts have already failed -- aborting

[sehqlr]

I tested this on AWS and Vagrant. LGTM

[distributorofpain]

Not sure if this is related, but i just deployed a fresh deployment to Digital Ocean ( no errors ). Freshly built command server with latest centos 7.2 image. Consul shows kubernetes all green, but when i try to launch the UI i get 404 not found from nginx/1.6.2 . All other aspects of mantl are working properly.

i should note that i set kubeworker_count = 0 in the terraform.tf file being used for deployment.