SSH Nodes: Download Files Ambiguous Error

[Erick-Reyes]

Expected behavior:
When accessing a specific node in the Teleport UI, which shares a name with other nodes, it should allow you to download a file using the file transfer dialog without any issues.

Current behavior:
When starting a session through the Teleport UI to a specific node, which shares a name with other nodes, it fails to download any file using the file transfer dialog with the following error:

Bug details:

• Teleport version: 12.0.x (tested on v12.0.1 and v12.0.4)
• Recreation steps:

1. Add 2 Ubuntu 20.04 to your Teleport Cluster with the same node name
2. Attempt to download a file from any of the nodes

• Debug logs: failed connecting to node ninja-node4. err-node-is-ambiguous

[russjones]

@avatus Can you fix this while you are working on moderated sessions downloads? We should connect/download via UUID instead of node name.

cc @zmb3

[avatus]

Sure thing!

[ravicious]

I've addressed a similar issue in Connect a few weeks ago when I was working on removing the resource cache. We were using the hostname (which we had to get from the resource cache) while the UUID is available from the URIs used by Connect.

• Connect: Use SSH server UUID instead of hostname for file transfer #21913

[avatus]

@ravicious basically same solution here. We already sent the serverID in the http request itself, so rather than searching for a hostname, I just passed in the serverID and all is well 👍