Rescale Master Nodes from CPX11 to CPX21

[psavva]

Dear @vitobotta

I'm looking at rescaling my master nodes for example from CPX11 to CPX21.

If i simply change

  masters_pool:
  instance_type: cpx11
  location: nbg1
  instance_count: 3

to

masters_pool:
  instance_type: cpx21
  location: nbg1
  instance_count: 3

A new cluster is created.

How do you go about scaling the master nodes?

[vitobotta]

Hi, sorry for the delay. I am going to dedicate some time to the project this coming week and I am planning to remove the instance type from the name of the servers to avoid this. This change will apply to new clusters only though, so existing clusters will need to keep the legacy naming convention.

For existing clusters, the easiest procedure is:

• drain the master
• rescale and wait it to be up and running
• uncordon the master when it's up