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 Duration 14 hours

Course Outline

Introduction to Service Mesh

  • Challenges associated with managing microservices at scale
  • The problems a service mesh addresses
  • Comparison of Istio with alternative service meshes (Linkerd, Consul)

Fundamentals of Kubernetes Networking

  • Core networking model in Kubernetes
  • Services, Ingress, and load balancing mechanisms
  • Limitations inherent to native Kubernetes networking

Istio Features and Architecture

  • Distinction between control plane and data plane
  • The function of Envoy sidecars
  • Key Istio components: Pilot, Citadel, Mixer (legacy), and Istiod

Installing Istio on Kubernetes

  • Preparing a Kubernetes cluster for Istio deployment
  • Installing Istio using Helm and Istioctl
  • Verifying installation and sidecar injection

Managing Traffic with Istio

  • Configuring routing, retries, and failover strategies
  • Implementing Blue/green and canary deployments
  • Utilizing Istio Gateway for ingress traffic

Securing Service Meshes with Istio

  • Mutual TLS (mTLS) for service-to-service authentication
  • Authorization policies (RBAC and ABAC)
  • Implementing Zero Trust architecture in Istio

Observability and Monitoring

  • Leveraging Prometheus and Grafana with Istio
  • Distributed tracing using Jaeger and Zipkin
  • Analyzing metrics, logs, and traces

Integrating Istio with Calico

  • Enforcing advanced network policies
  • Securing pod-to-pod communication
  • Best practices for deploying Istio + Calico

Troubleshooting and Best Practices

  • Addressing common issues in Istio deployments
  • Debugging sidecar proxies
  • Operational best practices for production service meshes

Summary and Next Steps

Requirements

  • Foundational understanding of networking concepts
  • Proficiency with the Linux command line
  • Knowledge of containers and Kubernetes

Audience

  • Developers
  • Cloud architects
  • DevOps engineers
  • Network engineers
  • System administrators

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