Teleport login problem

[klizhentas]

What happened:

Tsh login does not work normally with two proxies/auth servers connected to the same SAML/OIDC auth provider.

What you expected to happen:

Credentials will work for both first proxy and second proxy.

How to reproduce it (as minimally and precisely as possible):

Have two proxies/auth servers connected to the same OIDC/SAML provider.
Login to the first proxy with a user
Login to the second proxy with a user

As long as user does second login, tsh ls stops working for both first and second login, always prompting user to relogin.

Environment:

• Teleport version (use teleport version):
  2.4.0

• Tsh version (use tsh version):
  2.4.0

• OS (e.g. from /etc/os-release):
  linux
  Browser environment
  N/A

• Browser Version (for UI-related issues):

• Install tools:

• Others:

Relevant Debug Logs If Applicable

• tsh --debug
• teleport --debug

[klizhentas]

It picks wrong keys when username is the same, this interface should accept proxy name as a parameter and use the keys from currently logged in proxy.

https://github.com/gravitational/teleport/blob/master/lib/client/keystore.go#L117