the index creation:
[ec2-user@ip-172-31-26-41 ~]$ sudo docker exec -it clearml-mongo /bin/bash root@3fc365193ed0:/# mongo MongoDB shell version v3.6.5 connecting to: mongodb://127.0.0.1:27017 MongoDB server version: 3.6.5 Welcome to the MongoDB shell. For interactive help, type "help". For more comprehensive documentation, see Questions? Try the support group `
Server has startup warnings:
2021-01-25T05:58:37.309+0000 I CONTROL [initandlisten]
2021-01-25T05:58:37.309+0000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database.
2021-01-25T05:58:37.309+0000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
2021-01-25T05:58:37.309+0000 I CONTROL [initandlisten]

use auth
switched to db auth
db.user.createIndex({"name": 1, "comapny": 1})
{
"createdCollectionAutomatically" : false,
"numIndexesBefore" : 2,
"numIndexesAfter" : 3,
"ok" : 1
}

bye
root@3fc365193ed0:/# exit `