Install latest/stable of cos-alerter
Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
Install using the command line
sudo snap install cos-alerter
Don't have snapd? Get set up for snaps.
COS Alerter is a watchdog used to alert on alertmanager notification failures. By leveraging an always-firing alert rule routed specifically to cos-alerter, you'll be alerted if the pings stop happening - meaning your alertmanager is likely malfunctioning.
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Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the installing snapd documentation.