Prometheus Certified Associate (PCA)

01. Observability Fundamentals

• Introduction to Observability
• Understanding SLO / SLA / SLI

02. Prometheus Fundamentals

• Prometheus Use Case and Architecture
• Installation: systemd and Binary Demo
• Node Exporter: System and systemd configuration
• Authentication and Encryption basics
• Exploring the Expression Browser
• Monitoring Containers and Prometheus in Docker
• Introduction to PromTools

03. PromQL (Prometheus Query Language)

• Selectors, Matchers, and Modifiers
• Binary Operators and Vector Matching
• Aggregation and Functions
• Understanding Subqueries
• Histograms and Summaries
• Recording Rules and HTTP API

04. Dashboard & Visualization

• Expression Browser and Console Templates

05. Application Instrumentation

• Instrumentation Basics and Best Practices
• Metric Types: Counters, Gauges, Histograms, and Summaries
• Working with Labels

06. Service Discovery

• File-based vs. Cloud-based (AWS) Discovery
• Re-Labeling: Concepts and Configuration Demo

07. Push Gateway

• Push Gateway Installation and Use Cases
• Pushing Metrics via Client Libraries

08. Alerting with Alertmanager

• Labels, Annotations, and Alertmanager Architecture
• Installation and systemd Configuration
• Receivers, Notifiers, and Silence Management
• Alertmanager Demo and Rules Configuration

09. Monitoring Kubernetes

• Installing Prometheus using Helm Charts
• Prometheus Chart Overview and Configuration
• Deploying Demo Applications
• Service Monitors and Additional Scrape Configurations
• Managing Alerting Rules in Kubernetes