multi cluster with one ip

[wingsuitist]

Possibility for multiple clusters with one IP.

Scenario 10 clusters:

• osc01
• osc02
• ...
• osc10

Main Domain: example.com

API using different ports:

• api.osc01.example.com:6001
• api.osc02.example.com:6002
• ...
• api.osc10.example.com:6010

Todo: Check if reverse proxy can reliably handle API calls using different host names or if different ports are required.

Apps:

• *.apps.osc01.example.com
• *.apps.osc02.example.com
• ...
• *.apps.osc10.example.com

Possible solutions:

• Single HA Proxy which differentiates per "cluster domain" (e.g. osc01.exymple.com).
• Separate HA Proxy per cluster, but additional reverse Proxy sending traffic to each HA proxy.

[rbo]

I tried a long time ago to put many clusters behind a haproxy via "cluster domain" based routing. And I failed, there were some strange errors. That's why I decided to go with additional IPs. If you can provide a reliable solution, we can add a new docs part how to set it up or an add-on.

I'm not pretty sure how many users who really need. Most of the users I know have just one cluster running.

[wingsuitist]

We are currently evaluating if we can use it to spin up a clusters for a few days or just hours, and then destroy it again. Mostly for integration testing, but also for experiments where we quickly need a clean setup, and can not do the experiment on the same cluster as other experiments. Hope we can find the time to solve it.

=> About the errors: Was ist also problematic for the whole "*apps.xyz" part or only for the api?

[rbo]

I cannot remember, might be API only because of client cert auth.