When you use glooctl, it tries to read a configuration file located at $HOME/.gloo/glooctl-config.yaml. You can override the location of this file by setting the --config value (or alias -f) when you run a glooctl command. If the file does not exist, glooctl tries to write it.
You can set the following top-level values.
checkTimeoutSeconds: int. The maximum length of time to wait, in seconds, before giving up on an entire glooctl check call. A value of zero means no timeout. (default 0s)