slack-config/sig-arch: Add enhancements-owners usergroup

Signed-off-by: Stephen Augustus <saugustus@vmware.com>

communication/slack-config/restrictions.yaml

@@ -18,7 +18,7 @@ restrictions:
       - "^k8s-conformance$"
       - "^prod-readiness$"
     usergroups:
-      - ".*"
+      - "^enhancements-owners$"
   - path: "sig-docs/*.yaml"
     channels:
       - "^kubernetes-docs-[a-z]{2}$"

communication/slack-config/sig-architecture/usergroups.yaml

@@ -0,0 +1,15 @@
+# This file contains a list of all Slack User Groups that are managed by SIG Architecture.
+
+usergroups:
+  - name: enhancements-owners
+    long_name: Enhancements Owners
+    description: Process owners for the Enhancements subproject.
+    channels:
+      - enhancements
+      - sig-architecture
+      - sig-release
+    members:
+      - jeremyrickard # subproject owner
+      - johnbelamaric # subproject owner
+      - justaugustus # subproject owner
+      - mrbobbytables # subproject owner

communication/slack-config/users.yaml

@@ -18,6 +18,8 @@ users:
   idvoretskyi: U0CBHE6GM
   jdumars: U0YJS6LHL
   jeefy: U5MCFK468
+  jeremyrickard: U72ESU398
+  johnbelamaric: U246A1A0N
   jonasrosland: U0A4G34S2
   justaugustus: U0E0E78AK
   katharine: UBTBNJ6GL