Ensure icinga alerts are raised if scheduler journal client service is down
Related to T3502
Test Plan
octo-diff cannot be used here (required collection resources).
Vagrant:
- Install the checks as collected resources (puppet agent --test on vm scheduler nodes, saatchi, scheduler0-staging).
- Then installed on vm pergamon (puppet agent --test).
- Checks are appropriately either down or up when modifying their status on scheduler vms in the icinga ui.
Migrated from D6163 (view on Phabricator)