Tutorial Beginner By Samson Tanimawo, PhD Published Oct 7, 2026 10 min read

Istio Service Mesh: 30-Minute Tutorial

Istio in 30 minutes: enough to see what mesh does; not enough to operate one.

Step 1: Install Istio

istioctl install --set profile=demo

Wait for pods.

kubectl label namespace default istio-injection=enabled

Step 2: Deploy bookinfo

kubectl apply -f bookinfo.yaml (sample app from Istio docs).
Pods come up with sidecars (2 containers each).

Step 3: Observe traffic

Open Kiali (Istio dashboard), see service graph live.

Traffic flowing through sidecars; mTLS visible.

Step 4: Apply policy

kubectl apply -f mtls-strict.yaml, enforces mTLS.

Apply traffic-shifting policy, route 10% to v2.

Antipatterns

Istio in production without ops planning. Steep learning curve.
Sidecars on stateful workloads. Restart issues.
Default settings without tuning. Resource overhead.

What to do this week

Three moves. (1) Run the tutorial end-to-end on your own laptop / sandbox. (2) Apply the pattern to one production workload. (3) Document the variations you needed; share with the team.