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Using the Bitwarden SSH Agent in WSL2 Ubuntu
Using SSH keys in WSL2 (Ubuntu) when using Bitwarden as the SSH agent can be implemented with a few brief (scripted) steps. This post introduces the script designed to link the Bitwarden SSH agent through to your WSL2 environment (for Ubuntu only).
Script Functionality
The setup-bw-ssh-agent.sh script automates the necessary configurations:
- Installs
npiperelay: A utility that exposes Windows named pipes as standard input/output streams, enabling WSL processes to interact with services (like the OpenSSH agent) running on the Windows host via named pipes. - Installs
socat: A powerful command-line utility that establishes two bidirectional byte streams and transfers data between them, crucial for bridging the Unix socket to the npiperelay process for SSH agent forwarding. - Creates
agent-bridge.sh: This script establishes and forwards a Unix socket to your Bitwarden SSH agent on Windows. - Integrates with
.bashrc: The bridge script is automatically sourced in your.bashrc, ensuring the SSH agent is available upon shell startup.
Usage
To set up the Bitwarden SSH agent in your WSL2 Ubuntu environment, execute the following in your terminal:
wget https://gist.githubusercontent.com/jkwmoore/ce9eab106fe378709f447c843b0090e4/raw/setup-bw-ssh-agent.sh && bash setup-bw-ssh-agent.sh
After script execution, restart your shell or run source ~/scripts/agent-bridge.sh to activate the changes.
Thanks go to Aaron and the original work discussed here: https://www.rebelpeon.com/bitwarden-ssh-agent-on-wsl2/