Added image pull secret option to download custom image from private repository (#18760)

Signed-off-by: Javier Martínez <jmartinezfl@minsait.com>

stable/sonatype-nexus/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: sonatype-nexus
-version: 1.20.0
+version: 1.21.0
 appVersion: 3.17.0-01
 description: Sonatype Nexus is an open source repository manager
 keywords:

stable/sonatype-nexus/README.md

@@ -68,6 +68,7 @@ The following table lists the configurable parameters of the Nexus chart and the
 | `nexus.imageName`                           | Nexus image                         | `quay.io/travelaudience/docker-nexus`   |
 | `nexus.imageTag`                            | Version of Nexus                    | `3.17.0`                                 |
 | `nexus.imagePullPolicy`                     | Nexus image pull policy             | `IfNotPresent`                          |
+| `nexus.imagePullSecret`                     | Secret to download Nexus image from private registry      | `nil`             |
 | `nexus.env`                                 | Nexus environment variables         | `[{install4jAddVmParams: -Xms1200M -Xmx1200M -XX:MaxDirectMemorySize=2G -XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap}]` |
 | `nexus.resources`                           | Nexus resource requests and limits  | `{}`                                    |
 | `nexus.dockerPort`                          | Port to access docker               | `5003`                                  |

stable/sonatype-nexus/templates/deployment-statefulset.yaml

@@ -55,6 +55,10 @@ spec:
       hostAliases:
 {{ toYaml .Values.nexus.hostAliases | indent 8 }}
       {{- end }}
+      {{- if .Values.nexus.imagePullSecret }}
+      imagePullSecrets:
+        - name: {{ .Values.nexus.imagePullSecret }}
+      {{- end }}
       containers:
         - name: nexus
           image: {{ .Values.nexus.imageName }}:{{ .Values.nexus.imageTag }}