[feat] devcontainer `vscode server` downloaded within `tmpfs` should be deleted, or use better cache location

[loynoir]

brief

devcontainer vscode server downloaded within tmpfs should be deleted, or use better cache location

detail

vscode server tarball

https://update.code.visualstudio.com/commit:{{hash}}/server-linux-x64/stable

Downloaded into tmpfs location

/tmp/vsch-{{USERNAME}}/serverCache/{{hash}}/vscode-server-linux-x64.tar.gz

And decompressed into docker volume vscode

/var/lib/docker/volumes/vscode/_data/vscode-server/bin/linux-x64/{{hash}}/package.json

But, tarball within tmpfs is not deleted.

feat

If server tarball is not expected to be cached

• temp file should be deleted, once decompressed done

If server tarball is expected to be cached

• tmpfs is a bad cache location, which is brand new per boot.
• should use better cache location, such as look in order of

1. /var/cache/vscode_server_cache
2. $HOME/.cache/vscode_server_cache
3. /tmp/vsch-{{USERNAME}}/serverCache/