I want to run selenium tests with Buildkite.
So to configure BuildKite CI Agent, run the following script (view the source), which will download and install the correct binary for your system and architecture:
TOKEN="your system token" bash -c "`curl -sL https://raw.githubusercontent.com/buildkite/agent/master/install.sh`"
Then, you need to start the agent, using below command:
Thats it. You BuildKite CI Agent will be configured and ready to go. You can also refer Linux agent docs for more details.