add PDB

Author: funkypenguin

charts/stable/skypilot/Chart.yaml

@@ -3,7 +3,7 @@ name: skypilot
 description: A Helm chart for deploying SkyPilot API server on Kubernetes
 icon: "https://raw.githubusercontent.com/skypilot-org/skypilot/master/charts/skypilot/skypilot.svg"
 type: application
-version: 0.0.2-pre-10
+version: 0.0.2-pre-11
 appVersion: "0.0"
 dependencies:
   - name: ingress-nginx

charts/stable/skypilot/templates/pdb.yaml

@@ -0,0 +1,12 @@
+{{ if .Values.podDisruptionBudget.enabled }}
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ .Release.Name }}-api
+  namespace: {{ .Release.Namespace }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ .Release.Name }}-api
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+{{- end }}

charts/stable/skypilot/values.yaml

@@ -4,6 +4,12 @@ apiService:
   image: berkeleyskypilot/skypilot-nightly:latest
   # Number of replicas to deploy - replicas > 1 is not well tested.
   replicas: 1
+
+  # Enable/disable PodDisruptionBudget for the API server when replicas > 1
+  podDisruptionBudget:
+    enabled: false
+    minAvailable: 1
+
   preDeployHook: |-
     # Run commands before deploying the API server, e.g. installing an admin policy.
     # Refer to https://docs.skypilot.co/en/latest/cloud-setup/policy.html for more details about admin policy.