feat: expose jenkins master terminationGracePeriodSeconds (#1012)

Co-authored-by: brokenpip3 <brokenpip3@gmail.com>

api/v1alpha2/jenkins_types.go

@@ -386,6 +386,13 @@ type JenkinsMaster struct {
 	// HostAliases for Jenkins master pod and SeedJob agent
 	// +optional
 	HostAliases []corev1.HostAlias `json:"hostAliases,omitempty"`
+
+	// The grace period is the duration in seconds after the processes running in the pod are sent
+	// a termination signal and the time when the processes are forcibly halted with a kill signal.
+	// Set this value longer than the expected cleanup time for your process.
+	// Defaults to 30 seconds.
+	// +optional
+	TerminationGracePeriodSeconds *int64 `json:"terminationGracePeriodSeconds,omitempty"`
 }
 
 // Service defines Kubernetes service attributes

api/v1alpha2/zz_generated.deepcopy.go

@@ -368,6 +368,11 @@ func (in *JenkinsMaster) DeepCopyInto(out *JenkinsMaster) {
 			(*in)[i].DeepCopyInto(&(*out)[i])
 		}
 	}
+	if in.TerminationGracePeriodSeconds != nil {
+		in, out := &in.TerminationGracePeriodSeconds, &out.TerminationGracePeriodSeconds
+		*out = new(int64)
+		**out = **in
+	}
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new JenkinsMaster.

chart/jenkins-operator/README.md

@@ -90,6 +90,7 @@ Kubernetes native operator which fully manages Jenkins on Kubernetes
 | jenkins.seedJobAgentImage | string | `""` |  |
 | jenkins.seedJobs | list | `[]` |  |
 | jenkins.serviceAccount.annotations | object | `{}` |  |
+| jenkins.terminationGracePeriodSeconds | int | `30` |  |
 | jenkins.tolerations | list | `[]` |  |
 | jenkins.validateSecurityWarnings | bool | `false` |  |
 | jenkins.volumeMounts | list | `[]` |  |

chart/jenkins-operator/crds/jenkins-crd.yaml

@@ -1330,6 +1330,10 @@ spec:
                             type: string
                         type: object
                     type: object
+                  terminationGracePeriodSeconds:
+                    description: 'Optional duration in seconds the pod needs to terminate gracefully.'
+                    type: integer
+                    default: 30
                   tolerations:
                     description: If specified, the pod's tolerations.
                     items:

chart/jenkins-operator/templates/jenkins.yaml

@@ -115,6 +115,9 @@ spec:
     {{- with .Values.jenkins.hostAliases }}
     hostAliases: {{ toYaml . | nindent 4 }}
     {{- end }}
+    {{- if .Values.jenkins.terminationGracePeriodSeconds }}
+    terminationGracePeriodSeconds: {{ .Values.jenkins.terminationGracePeriodSeconds }}
+    {{- end }}
     containers:
       - name:  jenkins-master
         image: {{ .Values.jenkins.image }}

chart/jenkins-operator/values.yaml

@@ -65,6 +65,10 @@ jenkins:
   #   - "foo.remote"
   #   - "bar.remote"
 
+  # Optional duration in seconds the pod needs to terminate gracefully.
+  # Default 30sec
+  terminationGracePeriodSeconds: 30
+
   # validateSecurityWarnings enables or disables validating potential security warnings in Jenkins plugins via admission webhooks.
   validateSecurityWarnings: false
 

config/crd/bases/jenkins.io_jenkins.yaml

@@ -1330,6 +1330,14 @@ spec:
                             type: string
                         type: object
                     type: object
+                  terminationGracePeriodSeconds:
+                    description: The grace period is the duration in seconds after
+                      the processes running in the pod are sent a termination signal
+                      and the time when the processes are forcibly halted with a kill
+                      signal. Set this value longer than the expected cleanup time
+                      for your process. Defaults to 30 seconds.
+                    format: int64
+                    type: integer
                   tolerations:
                     description: If specified, the pod's tolerations.
                     items:

pkg/configuration/base/resources/pod.go

@@ -369,20 +369,26 @@ func NewJenkinsMasterPod(objectMeta metav1.ObjectMeta, jenkins *v1alpha2.Jenkins
 	objectMeta.Name = GetJenkinsMasterPodName(jenkins)
 	objectMeta.Labels = GetJenkinsMasterPodLabels(*jenkins)
 
+	if jenkins.Spec.Master.TerminationGracePeriodSeconds == nil {
+		defaultGracePeriod := constants.DefaultTerminationGracePeriodSeconds
+		jenkins.Spec.Master.TerminationGracePeriodSeconds = &defaultGracePeriod
+	}
+
 	return &corev1.Pod{
 		TypeMeta:   buildPodTypeMeta(),
 		ObjectMeta: objectMeta,
 		Spec: corev1.PodSpec{
-			ServiceAccountName: serviceAccountName,
+			ServiceAccountName:            serviceAccountName,
-			RestartPolicy:      corev1.RestartPolicyNever,
+			RestartPolicy:                 corev1.RestartPolicyNever,
-			NodeSelector:       jenkins.Spec.Master.NodeSelector,
+			NodeSelector:                  jenkins.Spec.Master.NodeSelector,
-			Containers:         newContainers(jenkins),
+			Containers:                    newContainers(jenkins),
-			Volumes:            append(GetJenkinsMasterPodBaseVolumes(jenkins), jenkins.Spec.Master.Volumes...),
+			Volumes:                       append(GetJenkinsMasterPodBaseVolumes(jenkins), jenkins.Spec.Master.Volumes...),
-			SecurityContext:    jenkins.Spec.Master.SecurityContext,
+			SecurityContext:               jenkins.Spec.Master.SecurityContext,
-			ImagePullSecrets:   jenkins.Spec.Master.ImagePullSecrets,
+			ImagePullSecrets:              jenkins.Spec.Master.ImagePullSecrets,
-			Tolerations:        jenkins.Spec.Master.Tolerations,
+			Tolerations:                   jenkins.Spec.Master.Tolerations,
-			PriorityClassName:  jenkins.Spec.Master.PriorityClassName,
+			PriorityClassName:             jenkins.Spec.Master.PriorityClassName,
-			HostAliases:        jenkins.Spec.Master.HostAliases,
+			HostAliases:                   jenkins.Spec.Master.HostAliases,
+			TerminationGracePeriodSeconds: jenkins.Spec.Master.TerminationGracePeriodSeconds,
 		},
 	}
 }

pkg/constants/constants.go

@@ -15,4 +15,6 @@ const (
 	DefaultSlavePortInt32 = int32(50000)
 	// JavaOpsVariableName is the name of environment variable which consists Jenkins Java options
 	JavaOpsVariableName = "JAVA_OPTS"
+	// DefaultTerminationGracePeriodSeconds is the default pod termination period second
+	DefaultTerminationGracePeriodSeconds = int64(30)
 )

test/e2e/configuration_test.go

@@ -111,6 +111,8 @@ func verifyJenkinsMasterPodAttributes(jenkins *v1alpha2.Jenkins) {
 	jenkinsPod := getJenkinsMasterPod(jenkins)
 	jenkins = getJenkins(jenkins.Namespace, jenkins.Name)
 
+	defaultGracePeriod := constants.DefaultTerminationGracePeriodSeconds
+
 	assertMapContainsElementsFromAnotherMap(jenkins.Spec.Master.Annotations, jenkinsPod.ObjectMeta.Annotations)
 	Expect(jenkinsPod.Spec.NodeSelector).Should(Equal(jenkins.Spec.Master.NodeSelector))
 
@@ -125,6 +127,7 @@ func verifyJenkinsMasterPodAttributes(jenkins *v1alpha2.Jenkins) {
 
 	Expect(jenkinsPod.Labels).Should(Equal(resources.GetJenkinsMasterPodLabels(*jenkins)))
 	Expect(jenkinsPod.Spec.PriorityClassName).Should(Equal(jenkins.Spec.Master.PriorityClassName))
+	Expect(jenkinsPod.Spec.TerminationGracePeriodSeconds).Should(Equal(&defaultGracePeriod))
 
 	for _, actualContainer := range jenkinsPod.Spec.Containers {
 		if actualContainer.Name == resources.JenkinsMasterContainerName {