Chapter 7. Checking greenboot scripts status

Procedure

• Check the current greenboot health check status by running the following command:

  $ systemctl show --property=SubState --value greenboot-healthcheck.service

  where:

  start

  Greenboot checks are still running.

  exited

  Checks have passed and greenboot has exited. Greenboot runs the scripts in the green.d directory when the system is in a healthy state.

  failed

  Checks have not passed. Greenboot runs the scripts in the red.d directory when the system is in this state and restarts the system.

• Check the numerical exit code of the greenboot health check service by running the following command:

  $ systemctl show --property=ExecMainStatus --value greenboot-healthcheck.service

  An exit code of 0 means the health check succeeded. A non-zero exit code means the health check failed.

• To see a report showing a message about boot status, such as Boot Status is GREEN - Health Check SUCCESS, use the following command:

  $ cat /run/motd.d/boot-status

  Example output

  Boot Status is GREEN - Health Check SUCCESS