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EX328
Red Hat — Specialist Certification

Resilient Microservices

Specialist EX328

From Service Mesh deployment and traffic management to canary releases, circuit breakers, mTLS, fault injection, and Ingress/Egress policies — master every skill tested in the EX328 exam.

Service Mesh Istio Envoy Kiali VirtualService DestinationRule mTLS Circuit Breaker Canary A/B Testing
Enroll Now Brochure
OpenShift Service Mesh — admin@cluster:~
OpenShift Service Mesh 2 | EX328 Lab # Canary release: 90% stable, 10% v2 apiVersion: networking.istio.io/v1beta1 kind: VirtualService spec: http: - route: - destination: {host: reviews, subset: v1} weight: 90 - destination: {host: reviews, subset: v2} weight: 10 # Circuit breaker + outlier detection kind: DestinationRule spec: trafficPolicy: connectionPool: tcp: {maxConnections: 100} outlierDetection: consecutive5xxErrors: 5 ejectionTime: 30s [admin@cluster ~]$ oc get smcp -n istio-system basic ComponentsReady True 2.4.3 30d OSSM 2.4 • Istio • Envoy • Kiali • EX328 Exam Ready • Zetlan Technologies
9
Modules
Full EX328 stack
35+ hrs
Duration
Hands-on labs
Cert Prep
Included
Exam-aligned
24/7
Support
Expert guidance
What You Master

The Complete Service Mesh Skill Set

From Service Mesh deployment and sidecar injection to canary releases, circuit breakers, mTLS, Ingress/Egress gateways, policy checks, and fault injection for resilience testing.

🕸️
Complete Service Mesh Resilience Pipeline

Master OSSM Custom Resources, sidecar injection, VirtualService traffic routing, canary and A/B deployments, traffic shifting with percentage splits, Ingress/Egress gateway policies, timeout and retry strategies, circuit breakers with outlier detection, mTLS peer authentication, AuthorizationPolicy, rate limiting, and fault injection for delay and abort testing.

IstioVirtualServiceDestinationRuleGatewaymTLSCircuit BreakerPeerAuthAuthorizationPolicyKialiEnvoy
🚀
Deploy on Service Mesh

OSSM Custom Resources, manual and annotation-based sidecar injection, network policies and member configuration.

🔀
Traffic Management

Static and dynamic routing to different app versions, VirtualService and DestinationRule configuration.

9
specialist domains covering every Service Mesh skill tested in the EX328 exam.
🎯
Release Patterns

A/B testing, canary releases, staged rollouts with percentage traffic splits, dark launches, traffic mirroring.

🛡️
Resilience, mTLS & Policy Checks

Circuit breakers, timeouts, retry strategies, connection pool and outlier detection policies, mTLS peer authentication, secure naming, AuthorizationPolicy, rate limiting, access quotas, and fault injection for delay and error simulation.

PeerAuthentication:
 mtls: STRICT
AuthorizationPolicy:
 action: ALLOW
 rules: [{from: ...}]
🌐
Ingress & Egress

Manage inbound and outbound traffic, define gateway entry points, enable controlled access to external services.

🧪
Fault Injection

Inject delays to simulate network latency, produce crash failures with error responses and TCP connection failures.

Why EX328

Service Mesh Is the Resilience Layer for Modern Microservices

Every enterprise running microservices on OpenShift needs Service Mesh for traffic management, mTLS security, and resilience patterns. EX328 certifies you can configure and maintain it at production scale.

Microservices Need a Resilience Layer

Circuit breakers, canary releases, mTLS, and traffic management are not optional in production microservices — EX328 proves you can configure all of them.

Performance-Based Live Exam

EX328 is a hands-on exam on a real OpenShift Service Mesh cluster — you configure VirtualServices, DestinationRules, and policy resources under live exam conditions.

Strong Demand in Cloud Native Engineering

Service Mesh skills are in high demand at telcos, banks, and cloud-native companies deploying microservices architectures on OpenShift globally.

Full 9-Domain Coverage

Our curriculum covers every EX328 objective — Service Mesh deployment, traffic management, canary releases, circuit breakers, mTLS, and fault injection.

Live OpenShift Service Mesh Lab

Practise on real OSSM 2.4 environments — every module includes exam-style hands-on tasks with Istio custom resources and Kiali observability.

Tools & Technologies You'll Master
OSSM 2.4
Istio
Envoy Proxy
Kiali
Jaeger
VirtualService
DestinationRule
Gateway CRD
PeerAuthentication
AuthorizationPolicy
ServiceMeshControlPlane
ServiceMeshMemberRoll
Circuit Breaker
mTLS
Fault Injection
Prometheus
OSSM 2.4
Istio
Envoy Proxy
Kiali
Jaeger
VirtualService
DestinationRule
Gateway CRD
PeerAuthentication
AuthorizationPolicy
ServiceMeshControlPlane
ServiceMeshMemberRoll
Circuit Breaker
mTLS
Fault Injection
Prometheus
Curriculum

9-Module EX328 Programme

From Service Mesh deployment and traffic management to canary releases, circuit breakers, mTLS security, policy checks, and fault injection.

  • Understand and work with Red Hat OpenShift Service Mesh Custom Resources
  • Install sidecar manually in pod applications
  • Automatic sidecar injection using annotations
  • Understand the configuration of network policies (Mesh members, external services, etc.)
  • Configure static and dynamic request routing to different versions of an application
  • Providing more complex operational functionality
  • A/B testing
  • Canary releases
  • Traffic shifting migration within the mesh producing between different services (A/B testing)
  • Canary rollouts
  • Staged rollouts with percentage-based traffic splits
  • Dark launches for a selective group of users
  • Traffic mirroring capabilities to bring changes to the microservices
  • Shadowing launches copying the live traffic
  • Managing the ingress and egress traffic control policies
  • Define and control gateway entry points into the mesh for incoming traffic
  • Enable controlled access to external publicly accessible services from within the Istio cluster
  • Dynamically manage failing nodes to prevent localized failures from cascading
  • Control the waiting time for replies by defining timeouts
  • Enhance service availability specifying request attempts with retry strategies
  • Apply circuit breaker mechanisms to limit calls and prevent access to overloaded hosts
  • Specify connection and ejection pool policies configuring load balancing destination rules
  • Define enforcement features through policies, configure local and global rate limiting, define access quotas
  • Enable and configure authorization for denial and allow policies applied to a workload
  • Provide service-to-service communication with secure naming authorization
  • Tunnel service-to-service communication using mutual TLS (mTLS)
  • Map the identity of the service name with secure naming
  • Define peer authentication policies to enforce the mutual TLS mode
  • Define the required end-user authentication policy check
  • Inject timing failures producing delays to mimic increased network latency or overloaded services
  • Produce crash failures with error response injections and TCP connection failures
Course Snapshot
9 Modules
Full EX328 objectives
35+ Hours
Total learning time
Cert Prep
Exam-aligned content
Tech Support
Call / WhatsApp
Mon–Fri
9 AM – 6 PM
Enroll Now Download Brochure
Have Questions?

Chat with our Service Mesh certified trainers instantly.

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Pricing & Packages

Get a Custom Quotation

Flexible pricing for live and blended training modes — we reply within 24 hours.

Career Outcomes

EX328 Careers in Microservices & Platform Engineering

Service Mesh skills are valued at telcos, banks, FinTech companies, and cloud-native enterprises deploying large-scale microservices architectures globally.

Nokia
Service Mesh
Ericsson
Istio/OSSM
IBM
Cloud Native
Accenture
Microservices
Service Mesh Engineer
Configure and maintain OpenShift Service Mesh for traffic management, mTLS, and resilience patterns.
₹10–22 LPA
Cloud Native Developer
Build and deploy resilient microservices using Istio service mesh patterns on OpenShift clusters.
₹12–28 LPA
Platform Security Engineer
Implement mTLS, AuthorizationPolicy, and zero-trust networking across microservice fleets.
₹12–30 LPA
DevOps/SRE Engineer
Deploy canary releases, A/B tests, and fault injection to validate microservice resilience in production.
₹14–35 LPA
Microservices Architect
Design resilient service mesh architectures with full observability, traffic policies, and security.
₹18–48 LPA
9
Modules
35+
Hours of Training
₹10–48L
Salary Range
EX328
RH Certified
New Batch Starting Soon — Limited Seats

Ready to Master Resilient Microservices?

Join platform engineers building resilient microservices careers on Red Hat OpenShift Service Mesh — the enterprise Istio platform for production cloud-native applications.

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