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 Duration 14 hours

Course Outline

Service Mesh Foundations

  • Difficulties associated with managing microservices at scale
  • The problems that a service mesh addresses
  • Comparing Istio to alternative service meshes (Linkerd, Consul)

Kubernetes Networking Basics

  • The fundamental Kubernetes networking model
  • Services, Ingress, and load balancing mechanisms
  • Constraints of native Kubernetes networking

Istio Capabilities and Design

  • Control plane versus data plane
  • The function of Envoy sidecars
  • Essential Istio components: Pilot, Citadel, Mixer (legacy), Istiod

Deploying Istio on Kubernetes

  • Preparing a Kubernetes cluster for Istio
  • Installing Istio using Helm and Istioctl
  • Confirming the installation and sidecar injection

Managing Traffic with Istio

  • Setting up routing, retries, and failover strategies
  • Blue/green and canary deployment techniques
  • Leveraging the Istio Gateway for ingress traffic

Enhancing Service Mesh Security with Istio

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

Observability and Surveillance

  • Utilizing Prometheus and Grafana alongside Istio
  • Distributed tracing using Jaeger and Zipkin
  • Interpreting metrics, logs, and traces

Combining Istio with Calico

  • Enforcing advanced network policies
  • Securing communication between pods
  • Optimal practices for Istio + Calico setups

Debugging and Optimal Practices

  • Frequent challenges in Istio deployments
  • Diagnosing sidecar proxy issues
  • Operational best practices for production service meshes

Conclusion and Future Steps

Requirements

  • A solid grasp of networking concepts
  • Proficiency with the Linux command line
  • Familiarity with containers and Kubernetes

Target Audience

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

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