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Course Outline

Introduction to Service Mesh

  • Challenges associated with managing microservices at scale.
  • How a service mesh resolves these challenges.
  • Comparing Istio with alternative service meshes such as Linkerd and Consul.

Fundamentals of Kubernetes Networking

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

Istio Features and Architecture

  • Distinction between the 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.
  • Validating the installation and sidecar injection process.

Managing Traffic with Istio

  • Configuring routing, retries, and failover strategies.
  • Implementing Blue/green and canary deployments.
  • Utilising the Istio Gateway for ingress traffic management.

Securing the Service Mesh with Istio

  • Implementing mutual TLS (mTLS) for service-to-service authentication.
  • Defining authorization policies (RBAC and ABAC).
  • Applying Zero Trust architecture within Istio.

Observability and Monitoring

  • Integrating Prometheus and Grafana with Istio.
  • Performing distributed tracing with Jaeger and Zipkin.
  • Analysing metrics, logs, and traces effectively.

Integrating Istio with Calico

  • Enforcing advanced network policies.
  • Securing pod-to-pod communication.
  • Best practices for deploying Istio alongside 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

  • A solid understanding of networking concepts.
  • Proficiency with the Linux command line.
  • Knowledge of containers and Kubernetes.

Target Audience

  • Developers.
  • Cloud Architects.
  • DevOps Engineers.
  • Network Engineers.
  • System Administrators.
 14 Hours

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