Course Outline
Module 1: Microservices Design
• Establishing effective Microservice Boundaries
• Utilising Domain Driven Design (DDD)
• Alternatives to Business Domain Boundaries (Volatility, Data, Technology, Organizational)
• Decomposing the Monolith
• Avoiding Premature decomposition
• Decomposition By Layer
• Applying Decomposition Patterns (Strangler, Parallel Run, Feature Toggle)
• Data Decomposition Concerns (Performance, Integrity, Transactions)
Module 2: Optimizing Docker and the Runtime
• Selecting the appropriate base image
• Minimizing the number of layers
• Utilising multi-stage builds
• Image optimization (sorting multi-line arguments, etc.)
• Leveraging the build cache
• Pinning image versions
• Fine-tuning resource allocation
• Adhering to secure container practices
• Configuring the runtime for optimal performance
Module 3: Kubernetes & Release Strategies
Overview of Kubernetes Deployments
• Creating and executing an Initial Deployment
• Kubernetes Deployment Options
Executing Rolling Update Deployments
• Understanding Rolling Update mechanisms
• Creating and executing a Rolling Update
• Rolling Back a Deployment
Executing Canary Deployments
• Understanding Canary Deployments
• Creating and executing a Canary Deployment
Executing Blue-Green Deployments
• Understanding Blue-Green Deployments
• Creating and executing a Blue-Green Deployment
Running Jobs and CronJobs
• Creating a Job and CronJob
Performing Monitoring and Troubleshooting Tasks
• Troubleshooting Techniques with kubectl
Module 4: Automation & Operational Efficiency
Automating Common Tasks in Kubernetes Using Python
• Using Python to perform administrative operations in Kubernetes
• Using Python to define Configuration objects
• Using Python to create Deployment objects
• Watching Kubernetes Events using Python
• Scaling a Deployment using Python
Understanding the Challenges of Automating Deployments
• Declarative Configuration with Kubernetes
• Managing the Integrity of Configuration
Implementing the GitOps Approach for Automating Deployments
• GitOps Principles
• Introducing Flux
• Installing Flux to a Kubernetes Cluster
Configuring Flux for Automated Deployments
• Utilising Notifications
• Structure of the Source Repository
Managing Application Updates with Image Automation
• Updating an Application Deployment with Flux
• Scanning Container Image Repositories for Tags
• Defining Policy for Latest Image selection
• Configuring Flux to Perform Automatic Image Updates
Module 5: Observability & Root Cause Clarity
Kubernetes Logging and Tracing Capabilities
• The Importance of Logging and Tracing
• Accessing Kubernetes Logs
• Pod and Container Logs
• Control Plane Logs
• Resource Usage of Nodes and Pods
Collecting and Analyzing Logs
• Log Aggregation
• Log Visualization
Distributed Tracing in Kubernetes
• Defining distributed tracing
• Utilising OpenTelemetry
• Distributed Tracing Tools
• Instrumenting an Application
• Using Tracing to Identify Performance Issues
Monitoring with Prometheus and Grafana
• Observability concepts
• Monitoring Tools
• Utilising Prometheus Instrumentation
Advanced Use Cases for Logging
• Processing Logs
• Filtering and Enriching Logs
• Event Sourcing
Module 6: Cluster Crisis Simulation & Incident Response
• Understanding various types of failures in a cluster environment
• Simulating Node Failures
• Pod Eviction & Resource Exhaustion Scenarios
• Network Issues
• DNS Failures for Application Timeout Handling
• Simulating an API Server Outage
• Simulating High Traffic for System Stability
• Storage Failure
• Configuration Errors
• Understanding Incident Reporting Procedures
Module 7: Leveraging AI for Troubleshooting
• Benefits of Generative AI for Kubernetes
• K8sGPT CLI Architecture
• Installing the K8sGPT CLI
• K8sGPT Commands and Usage
• Utilising K8sGPT Analyzers (podAnalyzer, pvcAnalyzer, rsAnalyzer, etc.)
• Analyzing the Cluster using K8sGPT
• Analyzing Real-Time Issues using K8sGPT
• In-Cluster Operator for K8sGPT
Requirements
- Basic knowledge of Linux command line
- Experience with application development or system administration
- Familiarity with containers (Docker concepts)
- Basic understanding of Kubernetes concepts (pods, deployments, services)
- General understanding of software architecture (e.g. APIs, services)
Target audience:
- DevOps Engineers
- Site Reliability Engineers (SREs)
- Backend / Software Developers working with microservices
- Cloud Engineers and Platform Engineers
-
System Administrators transitioning to Kubernetes environments
Testimonials (2)
Craig was extremely involved in the training, always making sure we are paying attention, adapted the examples to our day-to-day activities and always provided an answer when asked, even if the information was not added in the presentation.
Ecaterina Ioana Nicoale - BOOKING HOLDINGS ROMANIA SRL
Course - DevOps Foundation®
High level of commitment and knowledge of the trainer
