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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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CHANGES.md
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@ -17,11 +17,16 @@ Notable changes between versions.
#### Azure
* Upgrade to `terraform-provider-azurerm` [v2.0+](https://www.terraform.io/docs/providers/azurerm/guides/2.0-upgrade-guide.html) (action required)
* Change `worker_priority` from `Low` to `Spot` if used (action required)
* Switch to Azure's new Linux VM and Linux VM Scale Set resources
* If set, change `worker_priority` from `Low` to `Spot` (action required)
* Set controller's Azure disk caching to None
* Associate subnets (in addition to NICs) with security groups (aesthetic)
#### Bare-Metal
* Add `worker_node_labels` map variable for per-worker node labels ([#663](https://github.com/poseidon/typhoon/pull/663))
* Add `worker_node_taints` map variable for per-worker node taints ([#663](https://github.com/poseidon/typhoon/pull/663))
#### Google Cloud
* Fix `worker_node_labels` on Fedora CoreOS ([#651](https://github.com/poseidon/typhoon/pull/651))