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Accept initial worker node labels and taints map on bare-metal

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* Add `worker_node_labels` map from node name to a list of initial
node label strings
* Add `worker_node_taints` map from node name to a list of initial
node taint strings
* Unlike cloud platforms, bare-metal node labels and taints
are defined via a map from node name to list of labels/taints.
Bare-metal clusters may have heterogeneous hardware so per node
labels and taints are accepted
* Only worker node names are allowed. Workloads are not scheduled
on controller nodes so altering their labels/taints isn't suitable

```
module "mercury" {
  ...

  worker_node_labels = {
    "node2" = ["role=special"]
  }

  worker_node_taints = {
    "node2" = ["role=special:NoSchedule"]
  }
}
```

Related: https://github.com/poseidon/typhoon/issues/429
This commit is contained in:
Dalton Hubble
2020-03-08 20:39:18 -07:00
parent 7b0ea23cdc
commit ab7913a061
9 changed files with 50 additions and 1 deletions
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docs/cl/bare-metal.md
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@ -361,4 +361,6 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/bare-me
| pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
| service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |
| kernel_args | Additional kernel args to provide at PXE boot | [] | ["kvm-intel.nested=1"] |
| worker_node_labels | Map from worker name to list of initial node labels | {} | {"node2" = ["role=special"]} |
| worker_node_taints | Map from worker name to list of initial node taints | {} | {"node2" = ["role=special:NoSchedule"]} |