This blog post explains the concepts of SLO, SLI, and SLA, which are all important for ensuring that a service meets expectations for reliability. It also introduces a free, open-source tool named SLO Tracker that helps users track SLOs and Error Budgets.
Here are the key takeaways:
SLO (Service Level Objective): A target for how often a specific aspect of a service should be available or functional (e.g., 99.9% uptime).
SLI (Service Level Indicator): A measurable metric that reflects an SLO (e.g., percentage of time a service is up).
SLA (Service Level Agreement): A formal agreement between a service provider and its customers that outlines the expected level of service (including SLOs and consequences for not meeting them).
The blog post also highlights the challenges of SLO monitoring and how SLO Tracker can help by providing features like:
A unified dashboard for viewing SLOs and SLIs.
Error Budget visualization and alerts.
Integration with observability tools.
Ability to manage false positive alerts.