Simple alerts for all disks in Cloud Foundry/BOSH

Here is a Pager Duty alert for a persistent disk being greater than 80% full on an etcd node:

It turned out to be relatively simple to "turn on" disk monitoring on all jobs that contained persistent disks, across all deployments, across all stages of our client’s pipeline.

We created a simple BOSH release that just adds some monit monitoring; and BOSH health monitor does the rest. It was all built-in.

Introducing monitor-server

https://github.com/cloudfoundry-community/monitor-server-boshrelease

This BOSH release initially includes monitoring of ephemeral and persistent disks on a BOSH VM. Conceptually it could monitor for any global attribute of a VM that good ol’ monit can monitor

[See Quick guide to using Monit in BOSH for an introduction to Monit in BOSH]

By default it alerts on either disks reaching 80% capacity.

See the monitor-server README for how to co-locate it with all your BOSH deployments for instant disk monitoring.

BOSH health alerts

BOSH already includes a Health Monitor that forwards any alerts from any VM’s monit monitor. All you have to do is turn it on.

Currently the following backends are supported:

• SMTP/email
• Pager Duty
• DataDog
• AWS CloudWatch

Read the BOSH docs for more information on monitoring:

• https://bosh.io/docs/monitoring.html
• https://bosh.io/docs/hm-config.html
• https://bosh.io/docs/vm-monit.html