Add version catalogues

This takes advantage of version catalogue replacement, which was added to
airshipctl in the changes below.  It also refactors the kustomize structure
a bit to support that well.

This adds a treasuremap clusterctl function, which kustomizes the same function
from airshipctl to correct for paths.  This replaces the previous
site-level clusterctl entrypoints.

This gives each type and site a catalogues entrypoint, which are wired together
(site inheriting from type, and network-cloud from airship-core) for
inheritance.  Each phase that needs catalogue-based replacement now
pulls in its' site's catalogues definition, and then applies any
phase specific overrides only when necessary.

https://review.opendev.org/#/c/746608
https://review.opendev.org/#/c/746764/

Change-Id: I18364083f72628f9519af3d2fab0d6a4879d2d14
Relates-To: https://github.com/airshipit/airshipctl/issues/316

manifests/site/virtual-network-cloud/ephemeral/controlplane/control-machine-template-patch.yaml

@@ -1,11 +0,0 @@
----
-apiVersion: infrastructure.cluster.x-k8s.io/v1alpha3
-kind: Metal3MachineTemplate
-metadata:
-  name: cluster-controlplane
-spec:
-  template:
-    spec:
-      image:
-        url: http://10.23.24.1:8099/target-image.qcow2
-        checksum: http://10.23.24.1:8099/target-image.qcow2.md5sum

manifests/site/virtual-network-cloud/ephemeral/controlplane/kustomization.yaml

@@ -2,8 +2,11 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - ../../../../type/network-cloud/ephemeral/controlplane
+  - ../../shared/catalogues
   # TODO (dukov) It's recocommended to upload BareMetalHost objects separately
   # otherwise nodes will hang in 'registering' state for quite a long time
   - nodes
 patchesStrategicMerge:
-  - control-machine-template-patch.yaml
+  - versions-catalogue-patch.yaml
+transformers:
+  - ../../../../type/network-cloud/ephemeral/controlplane/replacements

manifests/site/virtual-network-cloud/ephemeral/controlplane/versions-catalogue-patch.yaml

@@ -0,0 +1,11 @@
+# Patch the versions catalogue to use the site-specific local image URL
+# TODO: patch this in from a site-networking catalogue in the future
+apiVersion: airshipit.org/v1alpha1
+kind: VariableCatalogue
+metadata:
+  name: versions-airshipctl
+files:
+  k8scontrol:
+    cluster_controlplane_image:
+      url: http://10.23.24.1:8099/target-image.qcow2
+      checksum: http://10.23.24.1:8099/target-image.qcow2.md5sum

manifests/site/virtual-network-cloud/ephemeral/initinfra/kustomization.yaml

@@ -1,4 +1,7 @@
 resources:
   - ../../../../type/network-cloud/ephemeral/initinfra
+  - ../../shared/catalogues
 patchesStrategicMerge:
   - patch_bmo_config.yaml
+transformers:
+  - ../../../../type/airship-core/ephemeral/initinfra/replacements

manifests/site/virtual-network-cloud/shared/catalogues/hosts.yaml

@@ -3,6 +3,8 @@
 apiVersion: airshipit.org/v1alpha1
 kind: VariableCatalogue
 metadata:
+  labels:
+    airshipit.org/deploy-k8s: "false"
   name: host-catalogue
 hosts:
   m3: