Fix a Nagios Service Stuck in Scheduled Downtime
Today an issue was brought to my attention in which a Nagios service check was genuinely stuck in downtime, with the only way to fix it being manually updating the nagios_servicestatus table....
Using Explicit Waits in Selenium to Improve Test Case Reliability
Selenium test cases can be a pain to write. They seem to fail for inane and irreplicable reasons that vanish on the next run of the test case. However, incorporating Explicit Waits can help reduce the number of false failures you receive....
Migrating Grafana's Database from SQLite to Postgres
Grafana is a fantastic tool for creating and sharing dashboards. However, you may quickly find yourself outgrowing its default SQLite database if you have too many people trying to use your Grafana instance at once....
Deduplicating Prometheus Blackbox ICMP checks with File Based Service Discovery
In my Prometheus set up, most of my scrape targets come from a file_sd service discovery set up. This poses a challenge of deduplicating ICMP...
Configure Nginx to Export Prometheus-formatted Metrics
How to build Nginx from source with an integration to serve Prometheus-formatted metrics...