Add eject virtual media phase

If the virtual media is not explicitly ejected, the ephemeral node can
reinstall as ephemeral node after converted as a worker or controller
during reboot.

Change-Id: I9f383a1d8ead6fea6f37ace9eade64e70fcc72e4

manifests/function/bootstrap/replacements/remotedirect-vars.yaml

@@ -34,3 +34,12 @@ replacements:
       kind: BaremetalManager
       name: PowerOffEphemeral
     fieldrefs: ["spec.hostSelector.name%EPHEMERAL_NODE%"]
+- source:
+    objref:
+      name: versions-remotedirect
+    fieldref: spec.remotedirect.node
+  target:
+    objref:
+      kind: BaremetalManager
+      name: EjectVirtualMediaEphemeral
+    fieldrefs: ["spec.hostSelector.name%EPHEMERAL_NODE%"]

manifests/phases/executors.yaml

@@ -238,6 +238,17 @@ spec:
     name: EPHEMERAL_NODE
 ---
 apiVersion: airshipit.org/v1alpha1
+kind: BaremetalManager
+metadata:
+  name: EjectVirtualMediaEphemeral
+  labels:
+    airshipit.org/deploy-k8s: "false"
+spec:
+  operation: eject-virtual-media
+  hostSelector:
+    name: EPHEMERAL_NODE
+---
+apiVersion: airshipit.org/v1alpha1
 kind: GenericContainer
 metadata:
   name: iso-cloud-init-data

manifests/phases/phases.yaml

@@ -268,6 +268,16 @@ config:
 ---
 apiVersion: airshipit.org/v1alpha1
 kind: Phase
+metadata:
+  name: eject-virtual-media-ephemeral
+config:
+  executorRef:
+    apiVersion: airshipit.org/v1alpha1
+    kind: BaremetalManager
+    name: EjectVirtualMediaEphemeral
+---
+apiVersion: airshipit.org/v1alpha1
+kind: Phase
 metadata:
   name: kubectl-wait-node-ephemeral
   clusterName: ephemeral-cluster

manifests/type/gating/phases/plan.yaml

@@ -95,6 +95,8 @@ phases:
   # To get ConfigMap for this phase, execute `airshipctl phase render --source config -k ConfigMap`
   # and find ConfigMap with name kubectl-wait-cluster
   - name: kubectl-wait-cluster-target
+  # Eject virtual media Ephemeral baremetal host to ensure it can reused.
+  - name: eject-virtual-media-ephemeral
   # Power off Ephemeral baremetal host avoid DHCP conflict
   - name: power-off-ephemeral
   # Create target k8s cluster resources