oc cluster join -- how to use?

[debianmaster]

It would be great if a guide / readme provided on how to use oc cluster join command

Version

oc v1.5.0-rc.0+49a4a7a
kubernetes v1.5.2+43a9be4
features: Basic-Auth

Server https://127.0.0.1:8443
openshift v1.5.0-alpha.3+cf7e336
kubernetes v1.5.2+43a9be4

Steps To Reproduce

oc cluster up
oc cluster join

Current Result

Prompts for
Please paste the contents of your secret here and hit ENTER:
and does not take any values as input, i have to ctrl + c to exit

Expected Result

join another cluster

[debianmaster]

let me know if you need help this task, i will try my best

[csrwng]

@debianmaster sorry I haven't had time to look into this. But, if you want to try it out, the secret that it's expecting is the contents of admin.kubeconfig from the master's config. You need to make sure that the address specified inside that config is accessible to the node you're trying to add.

[debianmaster]

i tried pasting the content of admin.kubeconfig and HIT enter.
prompt never leaves to next step its struck on asking secret content.

[debianmaster]

@csrwng can you help me with this? i'm trying to automate platform scaling and i do not want to do it in a non- standard way

[csrwng]

@debianmaster cluster join is at a very early, experimental stage. Using it to scale the platform is definitely not standard.

[LorbusChris]

I am interested in this as well, although I haven't had time to test it, yet.

@debianmaster I think the intended usecase is a bit different from yours, as stated in #9547

Add a new command oc cluster join which launches a container that acts as a node.

As I understand it you'd be bootstrapping that container on your machine as a node host to the cluster that is existing somewhere else. Question is are you supposed to run cluster up on that machine prior to cluster join? Have you tried it without?

I am imagining a use case where on one reasonably available bare-metal host I want to run an all-in-one setup (like cluster up) that provides the ability to scale out into a federated HA setup. Hence, my next Question:

Can anybody give an indication whether joining clusters to federations is something that will likely be supported within oc cluster in the future? (>v1.6)

[debianmaster]

😢 waiting.....

just a heads u to thoose following this thread, the paste is waiting for a EOF on the file, so paste it in, and then hit CTRL-D

[debianmaster]

did that work for you? what config file did you use? kubeconfig? @joshprismon