db = db.getSiblingDB('test1');

db.testdoc.insertOne({ person:"mark", color: "red", pencils : 10});
db.testdoc.insertOne({ person:"john", color: "blue", pencils : 20});
db.testdoc.insertOne({ person:"heidi", color: "purple", pencils : 30});
db.testdoc.insertOne({ person:"collin", color: "black", pencils : 40});
db.testdoc.insertOne({ person:"tristan", color: "red", pencils : 50});

db.createRole(
   {
     role: "test_read",
     privileges: [
       { resource: { db: "test1", collection: "testdoc" }, actions: [ "find"] },
     ],
     roles: []
   }
)

db.createRole(
   {
     role: "test_read_insert",
     privileges: [
       { resource: { db: "test1", collection: "testdoc" }, actions: [ "find", "insert"] },
     ],
     roles: []
   }
)

db.createRole(
   {
     role: "test_read_update",
     privileges: [
       { resource: { db: "test1", collection: "testdoc" }, actions: [ "find", "update"] },
     ],
     roles: []
   }
)

db.createRole(
   {
     role: "test_read_remove",
     privileges: [
       { resource: { db: "test1", collection: "testdoc" }, actions: [ "find", "remove"] },
     ],
     roles: []
   }
)