Schedule dask gateway pods with user-scheduler

deployments/gcp-uscentral1b/config/prod.yaml

@@ -11,3 +11,15 @@ daskhub:
     hub:
       extraEnv:
         OAUTH_CALLBACK_URL: "https://us-central1-b.gcp.pangeo.io/hub/oauth_callback"
+
+  dask-gateway:
+    backend:
+      # Ensure the scheduler and worker pods end up on 
+      # nodes that are already being used, to avoid scheduling on nodes
+      # that would otherwise be reclaimed by the cluster autoscaler.
+      scheduler:
+        extraPodConfig:
+          schedulerName: gcp-uscentral1b-prod-user-scheduler
+      worker:
+        extraPodConfig:
+          schedulerName: gcp-uscentral1b-prod-user-scheduler

deployments/gcp-uscentral1b/config/staging.yaml

@@ -19,6 +19,17 @@ daskhub:
     scheduling:
       userScheduler:
         enabled: false
+  dask-gateway:
+    backend:
+      # Ensure the scheduler and worker pods end up on
+      # nodes that are already being used, to avoid scheduling on nodes
+      # that would otherwise be reclaimed by the cluster autoscaler.
+      scheduler:
+        extraPodConfig:
+          schedulerName: gcp-uscentral1b-staging-user-scheduler
+      worker:
+        extraPodConfig:
+          schedulerName: gcp-uscentral1b-staging-user-scheduler
 
 metrics:
   enabled: true

deployments/icesat2/config/prod.yaml

@@ -33,3 +33,15 @@ daskhub:
           - aws-uswest2.pangeo.io
         letsencrypt:
           contactEmail: [email protected]
+
+  dask-gateway:
+    backend:
+      # Ensure the scheduler and worker pods end up on
+      # nodes that are already being used, to avoid scheduling on nodes
+      # that would otherwise be reclaimed by the cluster autoscaler.
+      scheduler:
+        extraPodConfig:
+          schedulerName: icesat2-prod-user-scheduler
+      worker:
+        extraPodConfig:
+          schedulerName: icesat2-prod-staging-user-scheduler

deployments/icesat2/config/staging.yaml

@@ -45,3 +45,15 @@ daskhub:
           - staging.aws-uswest2.pangeo.io
         letsencrypt:
           contactEmail: [email protected]
+
+  dask-gateway:
+    backend:
+      # Ensure the scheduler and worker pods end up on
+      # nodes that are already being used, to avoid scheduling on nodes
+      # that would otherwise be reclaimed by the cluster autoscaler.
+      scheduler:
+        extraPodConfig:
+          schedulerName: icesat2-staging-user-scheduler
+      worker:
+        extraPodConfig:
+          schedulerName: icesat2-staging-user-scheduler