[Image Update] Add Mongo/ Cassandra/ Postgres Shell Packages

[sourabh1007]

Thank you for filing this request! Please take a few minutes to fill out this template so that we can better understand the request.

Which image would you like to change?

Add Mongo/ Cassandra/ Postgres Shells (latest version)

What changes are you requesting?

Add Mongo/ Cassandra/ Postgres Shells (latest version)

What scenario are these changes enabling?

We are adding shells for Cosmos DBs on portal and for that we are leveraging Cloudshell. There are few packages we want to get preinstalled on Cloudshell container. It will enable us to use Cloudshell directly without installing the packages explicitly.

By how much does this change the image size?

It should not be much.

[surajssd]

Postgres client is already installed on cloudshell.

$ psql --version
psql (PostgreSQL) 14.14

But the other tools are not packaged in mariner as of today.

[mbifeld]

Closing this issue as there is nothing for Cloud Shell team to do now. @sourabh1007 Please reopen or make a new issue when the other tools are available in Azure Linux (Mariner).