In the previous demo we have successfully created a new MongoDB cluster.
Let's add a Secondary/Arbiter node to our Primary node now.

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You need to navigate to the Inventory area in the right part of the Layout section.
Below the Nodes section you will see an icon:
::| Drag me on Primary to add a Secondary/Arbiter.

You need to drag this icon onto Primary node and new window will appear.

You can choose between two services for your installation:

• Proxmox
• Your own VM

Select Next and create strong custom OS password.

Select Next again and choose the Cluster Role: Secondary or Arbiter.

‍You can enable or disable the Is Voting option for this node.

• In MongoDB, 'voting' is a key part of how a replica set maintains high availability and automatic failover. Please refer to official MongoDB documentation for in-depth explanation.

Here you can choose the Сluster size: small, medium, large and very large.
Click on the Rest API icon.

• You can paste generated code for use in automation in your preferred DevOps tool.

Select Submit to finalize your installation.

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Your installation path will look like this:Inventory area → Nodes → Drag me icon → Primary node → Choose service for your installation → Install a new MongoDB Secondary/Arbiter → Enter node details → Click Submit