Configurable pod (anti)Affinity. Fixes #89

infinispan · Jul 31, 2024 · 7db9abb · 7db9abb
1 parent 7f7f7ec
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Showing 6 changed files with 50 additions and 10 deletions.
diff --git a/README.md b/README.md
@@ -44,6 +44,8 @@ Configure your Infinispan cluster by specifying values in the `deploy.*` section
 | `deploy.tolerations` | Node taints to tolerate | `[]` | - |
 | `deploy.nodeSelector` | Defines the nodeSelector policy used by the cluster's StatefulSet | `{}` | - |
 | `deploy.nodeAffinity` | Defines the nodeAffinity policy used by the cluster's StatefulSet | `{}` | - |
+| `deploy.podAffinity` | Defines the podAffinity policy used by the cluster's StatefulSet | `{}` | - |
+| `deploy.podAntiAffinity` | Defines the podAntiAffinity policy used by the cluster's StatefulSet | <pre><code>podAntiAffinity:  <br>preferredDuringSchedulingIgnoredDuringExecution:<br>      - podAffinityTerm:<br>          labelSelector:<br>            matchLabels:<br>              clusterName: "{{ tpl include \"infinispan-helm-charts.name\" . }}"<br>              app: infinispan-pod<br>          topologyKey: kubernetes.io/hostname<br>        weight: 100</code></pre> | - |
 | `deploy.makeDataDirWritable` | Allows write access to the `data` directory for each Infinispan Server node. | false | Setting the value to `true` creates an initContainer that runs `chmod -R` on the `/opt/infinispan/server/data` directory and changes its permissions. |
 | `deploy.monitoring.enabled` | Enable or disable `ServiceMonitor` functionality. | false | Users must have `monitoring-edit` role assigned by the admin to deploy the Helm chart with `ServiceMonitor` enabled. |
 | `deploy.nameOverride` | Specifies a name for all Infinispan cluster resources. | Helm Chart release name | Configure a name for the created resources only if you need it to be different to the Helm Chart release name. |

diff --git a/README.md.tpl b/README.md.tpl
@@ -44,6 +44,8 @@ Configure your {brandname} cluster by specifying values in the `deploy.*` sectio
 | `deploy.tolerations` | Node taints to tolerate | `[]` | - |
 | `deploy.nodeSelector` | Defines the nodeSelector policy used by the cluster's StatefulSet | `{}` | - |
 | `deploy.nodeAffinity` | Defines the nodeAffinity policy used by the cluster's StatefulSet | `{}` | - |
+| `deploy.podAffinity` | Defines the podAffinity policy used by the cluster's StatefulSet | `{}` | - |
+| `deploy.podAntiAffinity` | Defines the podAntiAffinity policy used by the cluster's StatefulSet | <pre><code>podAntiAffinity:  <br>preferredDuringSchedulingIgnoredDuringExecution:<br>      - podAffinityTerm:<br>          labelSelector:<br>            matchLabels:<br>              clusterName: "{{ tpl include \"infinispan-helm-charts.name\" . }}"<br>              app: infinispan-pod<br>          topologyKey: kubernetes.io/hostname<br>        weight: 100</code></pre> | - |
 | `deploy.makeDataDirWritable` | Allows write access to the `data` directory for each {brandname} Server node. | false | Setting the value to `true` creates an initContainer that runs `chmod -R` on the `/opt/infinispan/server/data` directory and changes its permissions. |
 | `deploy.monitoring.enabled` | Enable or disable `ServiceMonitor` functionality. | false | Users must have `monitoring-edit` role assigned by the admin to deploy the Helm chart with `ServiceMonitor` enabled. |
 | `deploy.nameOverride` | Specifies a name for all {brandname} cluster resources. | Helm Chart release name | Configure a name for the created resources only if you need it to be different to the Helm Chart release name. |

diff --git a/documentation/asciidoc/topics/ref_deployment_configuration_values.adoc b/documentation/asciidoc/topics/ref_deployment_configuration_values.adoc
@@ -118,9 +118,30 @@ This can be used to change the group of mounted file systems. Set `securityConte
 |Specifies a name for all {brandname} cluster resources.
 |Helm Chart release name.
 
+| `deploy.nodeAffinity`
+| Defines the nodeAffinity policy used by the cluster's StatefulSet
+| `{}`
+
+| `deploy.podAffinity`
+| Defines the podAffinity policy used by the cluster's StatefulSet
+| `{}`
+
+| `deploy.podAntiAffinity`
+| Defines the podAntiAffinity policy used by the cluster's StatefulSet
+a|[source, yaml]
+....
+  preferredDuringSchedulingIgnoredDuringExecution:
+    - podAffinityTerm:
+        labelSelector:
+          matchLabels:
+            clusterName: "{{ tpl include \"infinispan-helm-charts.name\" . }}"
+              app: infinispan-pod
+        topologyKey: kubernetes.io/hostname
+      weight: 100
+....
+
 |`deploy.infinispan`
 |{brandname} Server configuration.
 |{brandname} provides default server configuration.
 For more information about configuring server instances, see xref:#server-configuration-values_configuring-servers[_{brandname} Server configuration values_].
-
 |===
diff --git a/templates/statefulset.yaml b/templates/statefulset.yaml
@@ -41,15 +41,18 @@ spec:
       {{- end }}
       {{- end }}
       affinity:
+        {{- if .Values.deploy.podAffinity }}
+        podAffinity:
+        {{- with .Values.deploy.podAffinity }}
+          {{- toYaml . | nindent 10 }}
+        {{- end }}
+        {{- end }}
+        {{- if .Values.deploy.podAntiAffinity }}
         podAntiAffinity:
-          preferredDuringSchedulingIgnoredDuringExecution:
-            - podAffinityTerm:
-                labelSelector:
-                  matchLabels:
-                    clusterName: {{ include "infinispan-helm-charts.name" . }}
-                    app: infinispan-pod
-                topologyKey: kubernetes.io/hostname
-              weight: 100
+        {{- with .Values.deploy.podAntiAffinity }}
+          {{- toYaml . | nindent 10 }}
+        {{- end }}
+        {{- end }}
         {{- if .Values.deploy.nodeAffinity }}
         nodeAffinity:
         {{- with .Values.deploy.nodeAffinity }}

diff --git a/values.schema.json b/values.schema.json
@@ -482,7 +482,7 @@
                                                                   "minLength": 1
                                                                }
                                                             },
-                                                         "required": ["path"]
+                                                         "required": ["alias","path","password"]
 
                                                          }
                                                       }

diff --git a/values.yaml b/values.yaml
@@ -86,6 +86,18 @@ deploy:
 
   nodeAffinity: {}
 
+  podAffinity: {}
+
+  podAntiAffinity:
+    preferredDuringSchedulingIgnoredDuringExecution:
+      - podAffinityTerm:
+          labelSelector:
+            matchLabels:
+              clusterName: "{{ tpl include \"infinispan-helm-charts.name\" . }}"
+              app: infinispan-pod
+          topologyKey: kubernetes.io/hostname
+        weight: 100
+
   nodeSelector: {}
 
   securityContext: {}
-Original file line number
+Diff line change
@@ Expand Up / @@ -482,7 +482,7 @@ @@
                                                                       "minLength": 1
                                                                    }
                                                                 },
-                                                             "required": ["path"]
+                                                             "required": ["alias","path","password"]
                                                              }
                                                           }
@@ Expand Down @@