salt/solutions: Deploy Solutions K8s dependencies

Some objects are required for MetalK8s to manage Solutions, notably a
Namespace and ConfigMap for Admin UIs, and the `Environment` CRD.

Issue: #1852

buildchain/buildchain/salt_tree.py

@@ -221,8 +221,10 @@ def _get_parts(self) -> Iterator[str]:
     Path('salt/metalk8s/addons/ui/deployed/namespace.sls'),
     Path('salt/metalk8s/addons/ui/deployed/ui.sls'),
 
-    Path('salt/metalk8s/addons/solutions/deployed.sls'),
-    Path('salt/metalk8s/addons/solutions/environment-crd.sls'),
+    Path('salt/metalk8s/addons/solutions/deployed/init.sls'),
+    Path('salt/metalk8s/addons/solutions/deployed/environment-crd.sls'),
+    Path('salt/metalk8s/addons/solutions/deployed/namespace.sls'),
+    Path('salt/metalk8s/addons/solutions/deployed/uis-configmap.sls'),
 
     Path('salt/metalk8s/addons/volumes/deployed.sls'),
     targets.TemplateFile(

salt/metalk8s/addons/solutions/deployed/init.sls

@@ -0,0 +1,4 @@
+include:
+  - .environment-crd
+  - .namespace
+  - .uis-configmap

salt/metalk8s/addons/solutions/deployed/namespace.sls

@@ -0,0 +1,10 @@
+#!kubernetes kubeconfig=/etc/kubernetes/admin.conf&context=kubernetes-admin@kubernetes
+
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: metalk8s-solutions
+  labels:
+    app.kubernetes.io/managed-by: metalk8s
+    app.kubernetes.io/part-of: metalk8s
+    heritage: metalk8s

salt/metalk8s/addons/solutions/deployed/uis-configmap.sls

@@ -0,0 +1,19 @@
+#!jinja | kubernetes kubeconfig=/etc/kubernetes/admin.conf&context=kubernetes-admin@kubernetes
+
+{%- from "metalk8s/map.jinja" import repo with context %}
+
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ui-branding
+  namespace: metalk8s-solutions
+  data:
+    config.json: |
+      {
+        "url": "https://{{ pillar.metalk8s.api_server.host }}:6443",
+        "registry_prefix": "{{ repo.registry_endpoint }}"
+      }
+    theme.json: |
+      {
+        "brand": {"primary": "#403e40", "secondary": "#e99121"}
+      }