backport of commit ec864cb31a (#16414)

Co-authored-by: Claire <claire@hashicorp.com>

.release/ci.hcl

@@ -38,6 +38,41 @@ event "prepare" {
   }
 }
 
+## These are promotion and post-publish events
+## they should be added to the end of the file after the verify event stanza.
+
+event "trigger-staging" {
+// This event is dispatched by the bob trigger-promotion command
+// and is required - do not delete.
+}
+
+event "promote-staging" {
+  depends = ["trigger-staging"]
+  action "promote-staging" {
+    organization = "hashicorp"
+    repository = "crt-workflows-common"
+    workflow = "promote-staging"
+    config = "release-metadata.hcl"
+  }
+
+  notification {
+    on = "always"
+  }
+}
+
+event "promote-staging-docker" {
+  depends = ["promote-staging"]
+  action "promote-staging-docker" {
+    organization = "hashicorp"
+    repository = "crt-workflows-common"
+    workflow = "promote-staging-docker"
+  }
+
+  notification {
+    on = "always"
+  }
+}
+
 event "trigger-production" {
 // This event is dispatched by the bob trigger-promotion command
 // and is required - do not delete.