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Istio Service Mesh

Master Istio and service mesh fundamentals to secure, observe, and manage microservices at scale on Kubernetes.
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Course Duration: 10 Hours
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Istio Service Mesh is a comprehensive, hands-on course designed to help developers, DevOps engineers, and cloud architects master microservices networking and service mesh patterns using Istio. As applications move to Kubernetes and cloud-native ecosystems, Istio has emerged as the leading tool to provide service discovery, traffic management, observability, and security across distributed services.
 
This course introduces Istio from the ground up, starting with service mesh basics, then progressing to advanced topics like traffic routing, mTLS security, observability with Prometheus/Grafana, and multi-cluster deployments.
 
By the end of this course, you’ll be able to deploy Istio confidently in production environments, enabling resilient, secure, and observable microservices architectures.
What You Will Gain

  • Understand service mesh architecture and Istio’s role in Kubernetes.

  • Deploy and configure Istio on a Kubernetes cluster.

  • Implement traffic management (canary releases, A/B testing, retries, and failovers).

  • Enable secure communication with mTLS and fine-grained access policies.

  • Monitor services using Prometheus, Grafana, and Jaeger.

  • Manage multi-cluster and hybrid-cloud deployments with Istio.

  • Troubleshoot and optimize Istio performance in real-world scenarios.

Who This Course Is For

  • Kubernetes practitioners looking to enhance microservices management.

  • DevOps engineers seeking advanced observability and networking tools.

  • Cloud architects designing scalable, secure, and resilient systems.

  • Developers building cloud-native apps who want better traffic control and debugging.

  • Students & professionals entering the cloud-native ecosystem.

How to Use This Course Effectively

  1. Follow the modules step by step – each builds on the previous.

  2. Practice on a live Kubernetes cluster – using Minikube, Kind, or a managed service (EKS, AKS, GKE).

  3. Experiment with traffic routing – deploy sample apps and try canary rollouts.

  4. Use observability tools – integrate Grafana dashboards and Jaeger tracing.

  5. Simulate failures – test Istio’s resilience features like retries and circuit breaking.

  6. Explore documentation and community – Istio evolves quickly; learning to use docs is key.

Course Objectives Back to Top

By the end of this course, learners will be able to:

  • Deploy Istio and configure sidecar proxies with Envoy.

  • Implement service discovery, traffic routing, and load balancing.

  • Secure communication with mTLS and RBAC policies.

  • Collect metrics, logs, and traces for observability.

  • Manage microservices across multi-cluster Kubernetes.

  • Apply best practices for production-ready Istio deployments.

Course Syllabus Back to Top

Course Syllabus

Module 1: Introduction to Service Mesh

  • Why service meshes?

  • Istio vs alternatives (Linkerd, Consul)

  • Core components of Istio

Module 2: Installing Istio on Kubernetes

  • Prerequisites and setup

  • Istioctl and Helm installation methods

  • Deploying the Istio control plane

Module 3: Istio Architecture

  • Data plane (Envoy proxy)

  • Control plane (Pilot, Mixer, Citadel)

  • Istio’s CRDs (VirtualService, DestinationRule, Gateway)

Module 4: Traffic Management

  • Routing, load balancing, and failover

  • Canary releases and A/B testing

  • Traffic mirroring for safe rollouts

Module 5: Security with Istio

  • Mutual TLS (mTLS)

  • Authentication and Authorization policies

  • Role-Based Access Control (RBAC)

Module 6: Observability and Monitoring

  • Metrics with Prometheus and Grafana

  • Distributed tracing with Jaeger/Zipkin

  • Logging and debugging

Module 7: Advanced Features

  • Circuit breaking and retries

  • Rate limiting and quotas

  • Policy enforcement

Module 8: Multi-Cluster and Hybrid Deployments

  • Istio across multiple clusters

  • Federation in hybrid cloud

  • Service mesh expansion

Module 9: Real-World Projects

  • Deploying a microservices demo app (Bookinfo app)

  • Canary rollout with observability dashboards

  • Secure service-to-service communication

Module 10: Production Best Practices

  • Scaling Istio

  • Performance tuning

  • Common troubleshooting patterns

Certification Back to Top

Upon successful completion, learners receive a Certificate of Completion from Uplatz validating their expertise in Istio Service Mesh, Kubernetes traffic management, observability, and microservices security. This certificate highlights readiness for advanced roles in DevOps, Site Reliability Engineering (SRE), and Cloud Architecture.

Career & Jobs Back to Top

After completing this course, learners can pursue roles such as:

  • DevOps Engineer (Service Mesh)

  • Site Reliability Engineer (SRE)

  • Cloud Infrastructure Engineer

  • Kubernetes Platform Engineer

  • Microservices Architect

Istio is widely adopted in fintech, SaaS, telecom, and enterprise cloud companies for managing microservices at scale.

Interview Questions Back to Top

  1. What is Istio and why is it used?
    Istio is a service mesh that manages communication between microservices. It provides traffic management, security, and observability in Kubernetes environments.

  2. What are the main components of Istio?

  • Envoy → data plane proxy.

  • Pilot → configures proxies for routing.

  • Mixer → policy and telemetry (deprecated, replaced by extensions).

  • Citadel → provides certificates for mTLS.

  1. How does traffic routing work in Istio?
    Traffic is controlled using CRDs like VirtualService and DestinationRule, allowing canary rollouts, A/B testing, and traffic mirroring.

  2. What is mTLS in Istio?
    Mutual TLS encrypts service-to-service communication and ensures both client and server authenticate each other.

  3. What are sidecar proxies?
    Sidecar proxies (Envoy) run alongside each service pod to intercept and manage traffic without changing the app code.

  4. How does Istio improve observability?
    It integrates with Prometheus, Grafana, and Jaeger to collect metrics, logs, and traces for monitoring and debugging.

  5. What is circuit breaking in Istio?
    Circuit breaking prevents service overload by limiting concurrent requests or retries, ensuring system stability.

  6. What is the difference between a Gateway and VirtualService in Istio?

  • Gateway manages ingress/egress traffic at the mesh boundary.

  • VirtualService defines routing rules for in-mesh services.

  1. Can Istio work across multiple clusters?
    Yes, Istio supports multi-cluster deployments, enabling services to communicate securely across Kubernetes clusters.

  2. What are the challenges of using Istio in production?
    Resource overhead, steep learning curve, and managing Istio upgrades are common challenges.

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