diff --git a/api/v1alpha2/jenkins_types.go b/api/v1alpha2/jenkins_types.go
index bd4e6607..1f73d8ea 100644
--- a/api/v1alpha2/jenkins_types.go
+++ b/api/v1alpha2/jenkins_types.go
@@ -372,6 +372,10 @@ type JenkinsMaster struct {
 	// PriorityClassName for Jenkins master pod
 	// +optional
 	PriorityClassName string `json:"priorityClassName,omitempty"`
+
+	// HostAliases for Jenkins master pod and SeedJob agent
+	// +optional
+	HostAliases []corev1.HostAlias `json:"hostAliases,omitempty"`
 }
 
 // Service defines Kubernetes service attributes
diff --git a/pkg/configuration/base/resources/deployment.go b/pkg/configuration/base/resources/deployment.go
index 8c8d2a44..c5f7481d 100644
--- a/pkg/configuration/base/resources/deployment.go
+++ b/pkg/configuration/base/resources/deployment.go
@@ -37,6 +37,7 @@ func NewJenkinsDeployment(objectMeta metav1.ObjectMeta, jenkins *v1alpha2.Jenkin
 					ImagePullSecrets:   jenkins.Spec.Master.ImagePullSecrets,
 					Tolerations:        jenkins.Spec.Master.Tolerations,
 					PriorityClassName:  jenkins.Spec.Master.PriorityClassName,
+					HostAliases: 	    jenkins.Spec.Master.HostAliases,
 				},
 			},
 			Selector: selector,
diff --git a/pkg/configuration/base/resources/pod.go b/pkg/configuration/base/resources/pod.go
index 26f202ed..c832667d 100644
--- a/pkg/configuration/base/resources/pod.go
+++ b/pkg/configuration/base/resources/pod.go
@@ -380,6 +380,7 @@ func NewJenkinsMasterPod(objectMeta metav1.ObjectMeta, jenkins *v1alpha2.Jenkins
 			ImagePullSecrets:   jenkins.Spec.Master.ImagePullSecrets,
 			Tolerations:        jenkins.Spec.Master.Tolerations,
 			PriorityClassName:  jenkins.Spec.Master.PriorityClassName,
+			HostAliases: 	    jenkins.Spec.Master.HostAliases,
 		},
 	}
 }
diff --git a/pkg/configuration/user/seedjobs/seedjobs.go b/pkg/configuration/user/seedjobs/seedjobs.go
index 96d1df75..dadc3e97 100644
--- a/pkg/configuration/user/seedjobs/seedjobs.go
+++ b/pkg/configuration/user/seedjobs/seedjobs.go
@@ -439,6 +439,7 @@ func agentDeployment(jenkins *v1alpha2.Jenkins, namespace string, agentName stri
 					NodeSelector:     jenkins.Spec.Master.NodeSelector,
 					Tolerations:      jenkins.Spec.Master.Tolerations,
 					ImagePullSecrets: jenkins.Spec.Master.ImagePullSecrets,
+					HostAliases:      jenkins.Spec.Master.HostAliases,
 					Containers: []corev1.Container{
 						{
 							Name:  "jnlp",