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Merge pull request #766 from jnummelin/backport-docs-to-0.11
Backport docs to 0.11
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## Control Plane High Availability | ||
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The following pre-requisites are required in order to configure an HA control plane: | ||
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### Requirements | ||
##### Load Balancer | ||
A load balancer with a single external address should be configured as the IP gateway for the controllers. | ||
The load balancer should allow traffic to each controller on the following ports: | ||
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- 6443 | ||
- 8132 | ||
- 8133 | ||
- 9443 | ||
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##### Cluster configuration | ||
On each controller node, a k0s.yaml configuration file should be configured. | ||
The following options need to match on each node, otherwise the control plane components will end up in very unknown states: | ||
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- `network` | ||
- `storage`: Needless to say, one cannot create a clustered control plane with each node only storing data locally on SQLite. | ||
- `externalAddress` | ||
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[Full configuration file refrence](configuration.md) |
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