Create a dedicated nodepool for OHW event

[sgibson91]

ref: #2879

I've set the minimum to 0 for now. I can scale it up Monday AM before the start of the event.

[sgibson91]

Output of `tf plan`

``` Terraform will perform the following actions:

google_container_node_pool.notebook["ohw"] will be created

• resource "google_container_node_pool" "notebook" {

  • cluster = "pilot-hubs-cluster"

  • id = (known after apply)

  • initial_node_count = 0

  • instance_group_urls = (known after apply)

  • location = "us-central1-b"

  • managed_instance_group_urls = (known after apply)

  • max_pods_per_node = (known after apply)

  • name = "nb-ohw"

  • name_prefix = (known after apply)

  • node_count = (known after apply)

  • node_locations = (known after apply)

  • operation = (known after apply)

  • project = "two-eye-two-see"

  • version = (known after apply)

  • autoscaling {

    • location_policy = (known after apply)
    • max_node_count = 100
    • min_node_count = 0
      }

  • management {

    • auto_repair = true
    • auto_upgrade = false
      }

  • node_config {

    • disk_size_gb = (known after apply)

    • disk_type = "pd-balanced"

    • guest_accelerator = (known after apply)

    • image_type = (known after apply)

    • labels = {

      • "2i2c.org/community" = "ohw"
      • "hub.jupyter.org/node-purpose" = "user"
      • "k8s.dask.org/node-purpose" = "scheduler"
        }

    • local_ssd_count = (known after apply)

    • logging_variant = "DEFAULT"

    • machine_type = "n1-highmem-16"

    • metadata = (known after apply)

    • min_cpu_platform = (known after apply)

    • oauth_scopes = [

      • "https://www.googleapis.com/auth/cloud-platform",
        ]

    • preemptible = false

    • resource_labels = {

      • "community" = "ohw"
        }

    • service_account = "[email protected]"

    • spot = false

    • tags = []

    • taint = [

      • {
        • effect = "NO_SCHEDULE"
        • key = "hub.jupyter.org_dedicated"
        • value = "user"
          },
      • {
        • effect = "NO_SCHEDULE"
        • key = "2i2c.org/community"
        • value = "ohw"
          },
          ]

    • workload_metadata_config {

      • mode = "GKE_METADATA"
        }
        }
        }

Plan: 1 to add, 0 to change, 0 to destroy.

Changes to Outputs:
~ regular_channel_latest_k8s_versions = {
~ "1." = "1.27.2-gke.1200" -> "1.27.3-gke.100"
~ "1.24." = "1.24.14-gke.1200" -> "1.24.14-gke.2700"
~ "1.25." = "1.25.10-gke.1200" -> "1.25.10-gke.2700"
~ "1.26." = "1.26.5-gke.1200" -> "1.26.5-gke.2700"
~ "1.27." = "1.27.2-gke.1200" -> "1.27.3-gke.100"
}

</details>

[github-actions]

Merging this PR will trigger the following deployment actions.

Support and Staging deployments

Cloud Provider	Cluster Name	Upgrade Support?	Reason for Support Redeploy	Upgrade Staging?	Reason for Staging Redeploy
gcp	2i2c	No		Yes	Following prod hubs require redeploy: ohw

Production deployments

Cloud Provider	Cluster Name	Hub Name	Reason for Redeploy
gcp	2i2c	ohw	Following helm chart values files were modified: ohw.values.yaml

[sgibson91]

Applied successfully!

[github-actions]

🎉🎉🎉🎉

Monitor the deployment of the hubs here 👉 https://github.com/2i2c-org/infrastructure/actions/runs/5763522346