[stable/openldap] Add deployment strategy configuration (#10499)

* [stable/openldap] Add deployment strategy configuration

Signed-off-by: Jacek Ciwiś <jacek.ciwis@thesoftwarehouse.pl>

* [stable/openldap] Bump to version 0.3.0

Signed-off-by: Jacek Ciwiś <jacek.ciwis@thesoftwarehouse.pl>

* [stable/openldap] Prevent from merging unsupported parameters

Signed-off-by: Jacek Ciwiś <jacek.ciwis@thesoftwarehouse.pl>

stable/openldap/Chart.yaml

@@ -1,6 +1,6 @@
 name: openldap
 home: https://www.openldap.org
-version: 0.2.4
+version: 0.3.0
 appVersion: 2.4.44
 description: Community developed LDAP software
 icon: http://www.openldap.org/images/headers/LDAPworm.gif

stable/openldap/README.md

@@ -26,6 +26,7 @@ The following table lists the configurable parameters of the openldap chart and
 | Parameter                          | Description                                                               | Default           |
 | ---------------------------------- | ------------------------------------------------------------------------- | ------------------|
 | `replicaCount`                     | Number of replicas                                                        | `1`               |
+| `strategy`                         | Deployment strategy                                                       | `{}`              |
 | `image.repository`                 | Container image repository                                                | `osixia/openldap` |
 | `image.tag`                        | Container image tag                                                       | `1.1.10`          |
 | `image.pullPolicy`                 | Container pull policy                                                     | `IfNotPresent`    |

stable/openldap/templates/deployment.yaml

@@ -12,6 +12,10 @@ metadata:
 {{- end }}
 spec:
   replicas: {{ .Values.replicaCount }}
+{{- if .Values.strategy }}
+  strategy:
+{{ toYaml .Values.strategy | indent 4 }}
+{{- end }}
   selector:
     matchLabels:
       app: {{ template "openldap.name" . }}

stable/openldap/values.yaml

@@ -3,6 +3,19 @@
 # Declare variables to be passed into your templates.
 
 replicaCount: 1
+
+# Define deployment strategy - IMPORTANT: use rollingUpdate: null when use Recreate strategy.
+# It prevents from merging with existing map keys which are forbidden.
+strategy: {}
+  # type: RollingUpdate
+  # rollingUpdate:
+  #   maxSurge: 1
+  #   maxUnavailable: 0
+  #
+  # or
+  #
+  # type: Recreate
+  # rollingUpdate: null
 image:
   # From repository https://github.com/osixia/docker-openldap
   repository: osixia/openldap