With great pleasure we are announcing the release of a new tool on Semaphore – the ability to SSH into your CI environment.
As of today, you are able to interactively inspect and run commands in the Semaphore environment right from your terminal.
This new feature enables you to easily find the subtle differences between your local development environment and the Semaphore platform that are a frequent cause of hard-to-debug build failures.
If your project has a complex setup for its build environment, an SSH session can also be of great help. After inspecting the environment and making your tests pass in the SSH session, you can easily copy the steps and configuration for your automated builds.
Starting an SSH session
To SSH into the Semaphore environment, open one of your recent builds and look for the Launch SSH button to start a new build environment.

Semaphore will start an environment identical to the one of your current build or deploy:
- Your project’s Git repository will be checked out at the same revision.
- Semaphore will also export any configuration files and environment variables which you have configured in your project’s settings.
Note: The first time you launch a session, Semaphore will guide you through the process of setting up a public key. You can find out more about setting up public SSH keys in our documentation.
We’re rolling this feature out to all users in the coming days.
We hope that you will enjoy this feature as much as we do. Happy SSH-ing!