# Unmanged Cluster - what is the point of mongos?

**URL:** <https://forums.percona.com/t/unmanged-cluster-what-is-the-point-of-mongos/17970>\
**Category:** Percona Operator for MongoDB\
**Created:** [October 12, 2022, 8:18pm UTC](https://forums.percona.com/t/unmanged-cluster-what-is-the-point-of-mongos/17970 "2022-10-12T20:18:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Vitaly\_Orbidan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/vitaly_orbidan/32/7979_2.png) [@Vitaly\_Orbidan](https://forums.percona.com/u/Vitaly_Orbidan)\
**Post date:** [October 12, 2022, 8:18pm UTC](https://forums.percona.com/t/unmanged-cluster-what-is-the-point-of-mongos/17970/1 "2022-10-12T20:18:58Z")

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Using PSMDB Operator v1.13.0, configuring cross-k8s-clusters replication.  
Main cluster comes online and ready. Replica cluster hangs in `initializing` status.  
Noticed that `mongos` pods would not come up, logs are saying `Authentication failed","attr":{"mechanism":"SCRAM-SHA-256"...` which should be expected, as according to [this](https://docs.percona.com/percona-operator-for-mongodb/replication.html#operator-replication:~:text=Setting%20unmanaged%20to%20true%20will%20not%20only%20prevent%20the%20Operator%20from%20controlling%20the%20Replica%20Set%20configuration%2C%20but%20it%20will%20also%20result%20in%20not%20generating%20certificates%20and%20users%20credentials%20for%20new%20clusters.) the operator for unmanaged cluster will not create secrets, certs, users, etc.

Does mongos in unmanaged cluster make any sense?

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**Author:** ![Sergey\_Pronin](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/sergey_pronin/32/14887_2.png) [@Sergey\_Pronin](https://forums.percona.com/u/Sergey_Pronin)\
**Post date:** [October 19, 2022, 6:19pm UTC](https://forums.percona.com/t/unmanged-cluster-what-is-the-point-of-mongos/17970/2 "2022-10-19T18:19:58Z")

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Yeah, it does in case of sharded clusters and failovers. You need to inherit certs from your “main” cluster and magic would happen once you add RS nodes.

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**Author:** ![Vitaly\_Orbidan](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/vitaly_orbidan/32/7979_2.png) [@Vitaly\_Orbidan](https://forums.percona.com/u/Vitaly_Orbidan)\
**Post date:** [October 19, 2022, 6:42pm UTC](https://forums.percona.com/t/unmanged-cluster-what-is-the-point-of-mongos/17970/3 "2022-10-19T18:42:58Z")

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I am running with `allowUnsafeConfigurations: true`, which, I thought, makes SSL not needed.

I “hate” the magic :), I mean I love it, but since it’s me trying to tap into this magic - I need to understand it