feat: add node affinity/anti-affinity and storage class knobs to run this on a cluster

k8s/charts/deluge/templates/deluge-pvc.yaml

@@ -11,4 +11,7 @@ spec:
     - ReadWriteMany
   resources:
     requests:
-      storage: {{ include "storage.size" . }}
+      storage: {{ include "storage.size" . }}
+  {{- if .Values.deployment.storageClass }}
+  storageClassName: {{ .Values.deployment.storageClass }}
+  {{- end }}

k8s/charts/deluge/templates/deluge-statefulset.yaml

@@ -20,6 +20,22 @@ spec:
         {{- include "deluge-benchmarks.labels" . | nindent 8 }}
 
     spec:
+      {{- if not .Values.experiment.allowColocation }}
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchExpressions:
+                  - key: app.kubernetes.io/component
+                    operator: In
+                    values:
+                      - deluge-node
+              topologyKey: "kubernetes.io/hostname"
+      {{- end }}
+      {{- with .Values.deployment.delugeNodePool }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: deluge-node
           image: codexstorage/deluge

k8s/charts/deluge/templates/testrunner-job.yaml

@@ -15,6 +15,10 @@ spec:
         {{- include "deluge-benchmarks.labels" . | nindent 8 }}
 
     spec:
+      {{- with .Values.deployment.runnerNodePool }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: deluge-experiment-runner
           image: codexstorage/bittorrent-benchmarks:latest

k8s/charts/deluge/templates/tracker-deployment.yaml

@@ -21,6 +21,10 @@ spec:
         {{- include "deluge-benchmarks.labels" . | nindent 8 }}
 
     spec:
+      {{- with .Values.deployment.trackerNodePool }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: bittorrent-tracker
           image: codexstorage/bittorrent-tracker

k8s/charts/deluge/values.yaml

@@ -15,4 +15,18 @@ experiment:
 
 deployment:
   pvcName: ""
-  appName: ""
+  appName: ""
+
+  # If false, Deluge nodes will not be allowed to run on the same node.
+  allowColocation: true
+
+  # Labels for setting Deluge, tracker, and experiment runner node affinity towards pools.
+  # Example:
+  #   delugeNodePool:
+  #     workload: benchmarks
+  delugeNodePool: {}
+  trackerNodePool: {}
+  runnerNodePool: {}
+
+  # Storage class for persistent volume claims.
+  storageClass: ""