Adds a new subcommand to print the current session token for use in
scripts and automation, similar to `gh auth token`.
## Usage
```bash
CODER_SESSION_TOKEN=$(coder login token)
```
Fixes#21515
Make keyring usage for session token storage on by default for supported
platforms (Windows and macOS), with the ability to opt-out via
--use-keyring=false.
This change will be a breaking change for any users depending on the
session token being stored on disk, though users can restore file usage
via the flag above.
This change will also require CLI users to authenticate after updating.
This change implements optional secure storage of the CLI token using the operating system
keyring for Windows, with groundwork laid for macOS in a future change. Previously, the
Coder CLI stored authentication tokens in plaintext configuration files, which posed a
security risk because users' tokens are stored unencrypted and can be easily accessed by
other processes or users with file system access.
The keyring is opt-in to preserve compatibility with applications (like the JetBrains
Toolbox plugin, VS code plugin, etc). Users can opt into keyring use with a new
`--use-keyring` flag.
The secure storage is platform dependent. Windows Credential Manager API is used on Windows.
The session token continues to be stored in plain text on macOS and Linux. macOS is omitted
for now while we figure out the best path forward for compatibility with apps like Coder Desktop.
https://www.notion.so/coderhq/CLI-Session-Token-in-OS-Keyring-293d579be592808b8b7fd235304e50d5https://github.com/coder/coder/issues/19403
Kacper Sawicki