Allow `RunnerDeployment`s to configure `dnsPolicy` for runners (#1892)

* Add DnsPolicy field to RunnerPodSpec struct

* Ensure the runnerSpec's DNSPolicy is mirrored to the pod.Spec

* Run `make manifests`

api/v1alpha1/runner_types.go

@@ -170,6 +170,9 @@ type RunnerPodSpec struct {
 	// +optional
 	RuntimeClassName *string `json:"runtimeClassName,omitempty"`
 
+	// +optional
+	DnsPolicy corev1.DNSPolicy `json:"dnsPolicy,omitempty"`
+
 	// +optional
 	DnsConfig *corev1.PodDNSConfig `json:"dnsConfig,omitempty"`
 

charts/actions-runner-controller/crds/actions.summerwind.dev_runnerdeployments.yaml

@@ -1381,6 +1381,9 @@ spec:
                                 type: string
                               type: array
                           type: object
+                        dnsPolicy:
+                          description: DNSPolicy defines how a pod's DNS will be configured.
+                          type: string
                         dockerEnabled:
                           type: boolean
                         dockerEnv:

charts/actions-runner-controller/crds/actions.summerwind.dev_runnerreplicasets.yaml

@@ -1378,6 +1378,9 @@ spec:
                                 type: string
                               type: array
                           type: object
+                        dnsPolicy:
+                          description: DNSPolicy defines how a pod's DNS will be configured.
+                          type: string
                         dockerEnabled:
                           type: boolean
                         dockerEnv:

charts/actions-runner-controller/crds/actions.summerwind.dev_runners.yaml

@@ -1325,6 +1325,9 @@ spec:
                         type: string
                       type: array
                   type: object
+                dnsPolicy:
+                  description: DNSPolicy defines how a pod's DNS will be configured.
+                  type: string
                 dockerEnabled:
                   type: boolean
                 dockerEnv:

config/crd/bases/actions.summerwind.dev_runnerdeployments.yaml

@@ -1381,6 +1381,9 @@ spec:
                                 type: string
                               type: array
                           type: object
+                        dnsPolicy:
+                          description: DNSPolicy defines how a pod's DNS will be configured.
+                          type: string
                         dockerEnabled:
                           type: boolean
                         dockerEnv:

config/crd/bases/actions.summerwind.dev_runnerreplicasets.yaml

@@ -1378,6 +1378,9 @@ spec:
                                 type: string
                               type: array
                           type: object
+                        dnsPolicy:
+                          description: DNSPolicy defines how a pod's DNS will be configured.
+                          type: string
                         dockerEnabled:
                           type: boolean
                         dockerEnv:

config/crd/bases/actions.summerwind.dev_runners.yaml

@@ -1325,6 +1325,9 @@ spec:
                         type: string
                       type: array
                   type: object
+                dnsPolicy:
+                  description: DNSPolicy defines how a pod's DNS will be configured.
+                  type: string
                 dockerEnabled:
                   type: boolean
                 dockerEnv:

controllers/runner_controller.go

@@ -650,6 +650,10 @@ func (r *RunnerReconciler) newPod(runner v1alpha1.Runner) (corev1.Pod, error) {
 		pod.Spec.HostAliases = runnerSpec.HostAliases
 	}
 
+	if runnerSpec.DnsPolicy != "" {
+		pod.Spec.DNSPolicy = runnerSpec.DnsPolicy
+	}
+
 	if runnerSpec.DnsConfig != nil {
 		pod.Spec.DNSConfig = runnerSpec.DnsConfig
 	}