[stable/jenkins] Ability to specify raw yaml template (#13319)

* Add agent raw pod yaml option

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

* Update documentation

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

* Add empty value for readability and editor use

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

* Allow variable usage in yamlTemplate

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

* Use html escaping function

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

* Eliminate leading newline using trim

Signed-off-by: Joshua Bussdieker <jbussdieker@gmail.com>

stable/jenkins/Chart.yaml

@@ -1,6 +1,6 @@
 name: jenkins
 home: https://jenkins.io/
-version: 1.1.9
+version: 1.1.10
 appVersion: lts
 description: Open source continuous integration server. It supports multiple SCM tools
   including CVS, Subversion and Git. It can execute Apache Ant and Apache Maven-based

stable/jenkins/README.md

@@ -175,6 +175,7 @@ Some third-party systems, e.g. GitHub, use HTML-formatted data in their payload
 | `agent.containerCap`       | Maximum number of agent                         | 10                     |
 | `agent.podName`            | slave Pod base name                             | Not set                |
 | `agent.idleMinutes`        | Allows the Pod to remain active for reuse       | 0                      |
+| `agent.yamlTemplate`       | The raw yaml of a Pod API Object to merge into the agent spec | Not set                |
 
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`.

stable/jenkins/templates/config.yaml

@@ -116,6 +116,9 @@ data:
               <imagePullSecrets/>
 {{- end }}
               <nodeProperties/>
+{{- if .Values.agent.yamlTemplate }}
+              <yaml>{{ tpl .Values.agent.yamlTemplate . | html | indent 4 | trim }}</yaml>
+{{- end }}
               <podRetention class="org.csanchez.jenkins.plugins.kubernetes.pod.retention.Default"/>
             </org.csanchez.jenkins.plugins.kubernetes.PodTemplate>
 {{- end -}}

stable/jenkins/values.yaml

@@ -356,6 +356,18 @@ agent:
   # Allows the Pod to remain active for reuse until the configured number of
   # minutes has passed since the last step was executed on it.
   idleMinutes: 0
+  # Raw yaml template for the Pod. For example this allows usage of toleration for agent pods.
+  # https://github.com/jenkinsci/kubernetes-plugin#using-yaml-to-define-pod-templates
+  # https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
+  yamlTemplate:
+  # yamlTemplate: |-
+  #   apiVersion: v1
+  #   kind: Pod
+  #   spec:
+  #     tolerations:
+  #     - key: "key"
+  #       operator: "Equal"
+  #       value: "value"
 
 persistence:
   enabled: true