Preserve per-window environment variables between workspace changes

[vkk-steigend]

• VSCode Version: 1.44.2
• Local OS Version: Ubuntu 18.04.4 LTS
• Remote OS Version: Debian Buster (10.3)
• Remote Extension/Connection Type: Docker

Steps to Reproduce:

1. Open a terminal in host machine
2. Start an ssh-agent by eval $(ssh-agent -s)
3. Add a key (key1) using ssh-add ~/.ssh/id_ed25519_key1
4. Open VS Code from the same terminal code .
5. Run ssh-add -l in VS Code terminal (shows the identity of key1) (:+1: )
6. Open folder in Remote Container
7. Run ssh-add -l in VS Code terminal (shows the identity of key1) (:+1: )
8. Open another terminal in host machine
9. Start a new ssh-agent by eval $(ssh-agent -s)
10. Add a key (key2) using ssh-add ~/.ssh/id_ed25519_key2
11. Open VS Code from the same terminal code .
12. Run ssh-add -l in VS Code terminal (shows the identity of key2) (:+1: )
13. Open folder in Remote Container
14. Run ssh-add -l in VS Code terminal (shows the identity of key1) (:-1: )

VS Code somehow only forwards the first ssh-agent to remote container eventhough it has the correct ssh-agent forwarded locally. Am I missing any configuration? Can this be fixed with any settings in devcontainer.json?

Does this issue occur when you try this locally?: No
Does this issue occur when you try this locally and all extensions are disabled?: N/A

[chrmarti]

@bpasero Opening a second window from an (external) terminal passes the environment variables from that terminal to the second window (which is good). These environment variables are then lost when that window opens another folder/URI and the environment variables from the first window are used (causing the unexpected behavior here).

Simplified steps (on Mac):

• Close all VS Code windows.
• In external terminal: FOO=window1 code
  • Verify in integrated terminal: echo $FOO (window1)
• In external terminal: FOO=window2 code -n
  • Verify in integrated terminal: echo $FOO (window2)
• Open another folder in second window.
  • Check in integrated terminal: echo $FOO (window1) 🐛

[bpasero]

Slightly related: #15452