slauger/hcloud-okd4

adjusting replicas does not seem to work

ebartz opened this issue · 3 comments

ebartz commented

Hi Simon,

first of all, this project is really awesome! Thanks for putting all this together.

One thing that does not seem to work for me is having more nodes. I thought that it would be done by specifying a number of workers/masters like this:

---
apiVersion: v1
baseDomain: 'example.com'
metadata:
  name: 'okd4'
compute:
- hyperthreading: Enabled
  name: worker
  replicas: 4
controlPlane:
  hyperthreading: Enabled
  name: master
  replicas: 3
networking:
  clusterNetworks:
  - cidr: 10.128.0.0/14
    hostPrefix: 23
  networkType: OpenShiftSDN
  serviceNetwork:
  - 172.30.0.0/16
  machineCIDR:
platform:
  none: {}
pullSecret: '{"auths":{"none":{"auth": "none"}}}'
sshKey: ssh-rsa AABBCC... Some_Service_User

But that did not do the trick for me. Am I missing something?

slauger commented

Hi @ebartz,

I hope you are doing well! Nice that you also work with OpenShift.

We are dealing with an UPI install here. The number compute replicas is only relevant for IPI installs. It applies to the MCO (Machine Config Operator). We do not have an hcloud integration in the MCO. Please always keep the value to zero for UPI. This does not apply to the control plane.

For scaling of master and worker nodes there is also an extra Terraform variable.

export TF_VAR_replicas_master=3
export TF_VAR_replicas_worker=4
ebartz commented

Thanks for pointing this out. Works great now:

image

  • 👍2