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Basically title. I was just wondering, since this is the advertised default setting in kube.tf. What are the downsides of distributing the control-plane nodes? |
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You typically want your control-plane as highly available as possible, since without a control-plane, no changes in pods can occur, including spawning new ones. The biggest downside is that whenever the cloud provider has maintenance or an outage, the chance of something being down is higher than when you run everything together, however the impact is lower. |
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Exactly! And always in odd numbers, and at least 3. |
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What about latency? I heard that highish latency can also disrupt a cluster. maybe @mysticaltech can also give is opinion? |
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You typically want your control-plane as highly available as possible, since without a control-plane, no changes in pods can occur, including spawning new ones.
The biggest downside is that whenever the cloud provider has maintenance or an outage, the chance of something being down is higher than when you run everything together, however the impact is lower.