Assigning backup jobs to specific nodes

charts/timescaledb-single/Chart.yaml

@@ -4,7 +4,7 @@
 apiVersion: v1
 name: timescaledb-single
 description: 'TimescaleDB HA Deployment.'
-version: 0.33.2
+version: 0.33.3
 icon: https://cdn.iconscout.com/icon/free/png-256/timescaledb-1958407-1651618.png
 
 # appVersion specifies the version of the software, which can vary wildly,

charts/timescaledb-single/templates/pgbackrest.yaml

@@ -71,6 +71,18 @@ spec:
               - |
                   {"type": {{ quote .type }}}
               - "http://{{ template "timescaledb.fullname" $ }}-backup:8081/backups/"
+          {{- with $.Values.backup.nodeSelector }}
+          nodeSelector:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with $.Values.backup.tolerations }}
+          tolerations:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- if $.Values.backup.affinity }}
+          affinity:
+            {{- $.Values.backup.affinity | toYaml | nindent 12 }}
+          {{- end }}
 ...
 {{- end }}
 {{ end }}

charts/timescaledb-single/values.schema.json

@@ -120,6 +120,16 @@
             "null"
           ]
         },
+        "affinity": {
+          "additionalProperties": true,
+          "type": "object"
+        },
+        "tolerations": {
+          "type": "array"
+        },
+        "nodeSelector": {
+          "type": "object"
+        },
         "jobs": {
           "type": "array"
         },

charts/timescaledb-single/values.schema.yaml

@@ -472,6 +472,13 @@ properties:
         type:
           - object
           - "null"
+    nodeSelector:
+      type: object
+    tolerations:
+      type: array
+    affinity:
+      type: object
+      additionalProperties: true
   secrets:
     type: object
     additionalProperties: false

charts/timescaledb-single/values.yaml

@@ -147,6 +147,27 @@ backup:
   # requests:
   #   cpu: 100m
   #   memory: 128Mi
+  # https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
+  #  tolerations:
+  #    - key: node-group
+  #      operator: Equal
+  #      value: spot-job
+  tolerations: []
+  # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity
+  #  affinity:
+  #    nodeAffinity:
+  #      requiredDuringSchedulingIgnoredDuringExecution:
+  #        nodeSelectorTerms:
+  #          - matchExpressions:
+  #              - key: node-group
+  #                operator: In
+  #                values:
+  #                  - spot-job
+  affinity: {}
+  # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector
+  #  nodeSelector:
+  #    node-group: spot-job
+  nodeSelector: {}
 
 # When creating a *new* deployment, the default is to initialize (using initdb) the database.
 # If however, you want to initialize the database using an existing backup, you can do so by