Add new ingest role (#504)

Fixes #501

Author: trueleo

server/src/rbac/role.rs

@@ -125,6 +125,7 @@ pub mod model {
         Editor,
         Writer { stream: String },
         Reader { stream: String, tag: Option<String> },
+        Ingest { stream: String },
     }
 
     impl From<&DefaultPrivilege> for RoleBuilder {
@@ -142,6 +143,9 @@ pub mod model {
                     }
                     reader
                 }
+                DefaultPrivilege::Ingest { stream } => {
+                    ingest_perm_builder().with_stream(stream.to_owned())
+                }
             }
         }
     }
@@ -210,4 +214,12 @@ pub mod model {
             tag: None,
         }
     }
+
+    fn ingest_perm_builder() -> RoleBuilder {
+        RoleBuilder {
+            actions: vec![Action::Ingest],
+            stream: None,
+            tag: None,
+        }
+    }
 }