Teach ccm what it needs to look after the control plane endpoint

controllers/packetmachine_controller.go

@@ -208,6 +208,9 @@ func (r *PacketMachineReconciler) reconcile(ctx context.Context, machineScope *s
 		}
 	}
 	if dev == nil {
+		createDeviceReq := packet.CreateDeviceRequest{
+			MachineScope: machineScope,
+		}
 		mUID := uuid.New().String()
 		tags := []string{
 			packet.GenerateMachineTag(mUID),
@@ -228,13 +231,13 @@ func (r *PacketMachineReconciler) reconcile(ctx context.Context, machineScope *s
 					Address: controlPlaneEndpoint.Address,
 				}
 				addrs = append(addrs, a)
-				// This tag is currently not used. I placed it there to easely localize the device that currently has the IP attached.
-				// Probably it is not neeed but I wil get back to it when working at #141.
-				tags = append(tags, fmt.Sprintf("capp.control-plane-endpoint=%s", controlPlaneEndpoint.Address))
 			}
+			createDeviceReq.ControlPlaneEndpoint = controlPlaneEndpoint.Address
 		}
 
-		dev, err = r.PacketClient.NewDevice(machineScope, tags)
+		createDeviceReq.ExtraTags = tags
+
+		dev, err = r.PacketClient.NewDevice(createDeviceReq)
 		if err != nil {
 			errs := fmt.Errorf("failed to create machine %s: %v", machineScope.Name(), err)
 			machineScope.SetErrorReason(capierrors.CreateMachineError)

pkg/cloud/packet/client.go

@@ -67,15 +67,21 @@ func (p *PacketClient) GetDevice(deviceID string) (*packngo.Device, error) {
 	return dev, err
 }
 
-func (p *PacketClient) NewDevice(machineScope *scope.MachineScope, extraTags []string) (*packngo.Device, error) {
-	userDataRaw, err := machineScope.GetRawBootstrapData()
+type CreateDeviceRequest struct {
+	ExtraTags            []string
+	MachineScope         *scope.MachineScope
+	ControlPlaneEndpoint string
+}
+
+func (p *PacketClient) NewDevice(req CreateDeviceRequest) (*packngo.Device, error) {
+	userDataRaw, err := req.MachineScope.GetRawBootstrapData()
 	if err != nil {
 		return nil, errors.Wrap(err, "impossible to retrieve bootstrap data from secret")
 	}
 
 	userData := string(userDataRaw)
-	tags := append(machineScope.PacketMachine.Spec.Tags, extraTags...)
-	if machineScope.IsControlPlane() {
+	tags := append(req.MachineScope.PacketMachine.Spec.Tags, req.ExtraTags...)
+	if req.MachineScope.IsControlPlane() {
 		// control plane machines should get the API key injected
 		tmpl, err := template.New("control-plane-user-data").Parse(userData)
 		if err != nil {
@@ -85,6 +91,9 @@ func (p *PacketClient) NewDevice(machineScope *scope.MachineScope, extraTags []s
 		apiKeyStruct := map[string]interface{}{
 			"apiKey": p.Client.APIKey,
 		}
+		if req.ControlPlaneEndpoint != "" {
+			apiKeyStruct["controlPlaneEndpoint"] = req.ControlPlaneEndpoint
+		}
 		if err := tmpl.Execute(stringWriter, apiKeyStruct); err != nil {
 			return nil, fmt.Errorf("error executing control-plane userdata template: %v", err)
 		}
@@ -94,24 +103,24 @@ func (p *PacketClient) NewDevice(machineScope *scope.MachineScope, extraTags []s
 		tags = append(tags, infrastructurev1alpha3.WorkerTag)
 	}
 	serverCreateOpts := &packngo.DeviceCreateRequest{
-		Hostname:              machineScope.Name(),
-		ProjectID:             machineScope.PacketCluster.Spec.ProjectID,
-		Facility:              []string{machineScope.PacketCluster.Spec.Facility},
-		BillingCycle:          machineScope.PacketMachine.Spec.BillingCycle,
-		HardwareReservationID: machineScope.PacketMachine.Spec.HardwareReservationID,
-		Plan:                  machineScope.PacketMachine.Spec.MachineType,
-		OS:                    machineScope.PacketMachine.Spec.OS,
+		Hostname:              req.MachineScope.Name(),
+		ProjectID:             req.MachineScope.PacketCluster.Spec.ProjectID,
+		Facility:              []string{req.MachineScope.PacketCluster.Spec.Facility},
+		BillingCycle:          req.MachineScope.PacketMachine.Spec.BillingCycle,
+		HardwareReservationID: req.MachineScope.PacketMachine.Spec.HardwareReservationID,
+		Plan:                  req.MachineScope.PacketMachine.Spec.MachineType,
+		OS:                    req.MachineScope.PacketMachine.Spec.OS,
 		Tags:                  tags,
 		UserData:              userData,
 	}
 
 	// Update server options to pass pxe url if specified
-	if machineScope.PacketMachine.Spec.IPXEUrl != "" {
+	if req.MachineScope.PacketMachine.Spec.IPXEUrl != "" {
 		// Error if pxe url and OS conflict
-		if machineScope.PacketMachine.Spec.OS != ipxeOS {
+		if req.MachineScope.PacketMachine.Spec.OS != ipxeOS {
 			return nil, fmt.Errorf("os should be set to custom_pxe when using pxe urls")
 		}
-		serverCreateOpts.IPXEScriptURL = machineScope.PacketMachine.Spec.IPXEUrl
+		serverCreateOpts.IPXEScriptURL = req.MachineScope.PacketMachine.Spec.IPXEUrl
 	}
 
 	dev, _, err := p.Client.Devices.Create(serverCreateOpts)

templates/cluster-template.yaml

@@ -26,6 +26,14 @@ spec:
         kubeletExtraArgs:
           cloud-provider: external
     postKubeadmCommands:
+    - |
+        cat <<EOF >> /etc/network/interfaces
+        auto lo:0
+        iface lo:0 inet static
+          address {{ .controlPlaneEndpoint }}
+          netmask 255.255.255.255
+        EOF
+    - systemctl restart networking
     - 'kubectl --kubeconfig /etc/kubernetes/admin.conf create secret generic -n kube-system packet-cloud-config --from-literal=cloud-sa.json=''{"apiKey": "{{ .apiKey }}","projectID": "${PROJECT_ID}"}'''
     - kubectl apply --kubeconfig /etc/kubernetes/admin.conf -f https://raw.githubusercontent.com/packethost/packet-ccm/9779a5b1dcaa039c40159a6a2c2e57b8ab4874d8/deploy/releases/v1.0.1/deployment.yaml
     preKubeadmCommands:
@@ -44,14 +52,7 @@ spec:
     - systemctl daemon-reload
     - systemctl enable docker
     - systemctl start docker
-    - |
-        cat <<EOF >> /etc/network/interfaces
-        auto lo:0
-        iface lo:0 inet static
-          address $(curl -s https://metadata.packet.net/metadata | jq -r '.network.addresses[] | select(.address_family == 4 and .public == true and .management == false) | .address')
-          netmask 255.255.255.255
-        EOF
-    - systemctl restart networking
+    - ping -c 3 -q {{ .controlPlaneEndpoint }} && echo OK || ip addr add {{ .controlPlaneEndpoint }} dev lo
 ---
 apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
 kind: PacketMachineTemplate