Setup Istio

Summary

In this lab, you will install Istio on the cluster we previously created.

Deploy Istio

1- Create a namespace for the istio-system components:

kubectl create namespace istio-system

2- Install all the Istio Custom Resource Definitions (CRDs), and wait a few seconds for the CRDs to be committed:

$ kubectl apply -f src/install/1.2.5/istio-crds.yaml

3- Verify that all 23 Istio CRDs were committed to the Kubernetes api-server:

$ kubectl get crds | grep 'istio.io' | wc -l

4- Install Istio:

kubectl apply -f src/install/1.2.5/istio.yaml

⏳ Wait until Istio is fully deployed. Note that the Istio installation can take up to five minutes.

Verify installation

Let’s get the deployments (you can also get pods, services, etc.)

⚠️ Do not forget to specify the Istio’s namespace (-n istio-system).

$ kubectl get deployments -n istio-system

NAME                     DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
grafana                  1         1         1            1           1h
istio-citadel            1         1         1            1           1h
istio-egressgateway      1         1         1            1           1h
istio-galley             1         1         1            1           1h
istio-ingressgateway     1         1         1            1           1h
istio-pilot              1         1         1            1           1h
istio-policy             1         1         1            1           1h
istio-sidecar-injector   1         1         1            1           1h
istio-telemetry          1         1         1            1           1h
istio-tracing            1         1         1            1           1h
kiali                    1         1         1            1           1h
prometheus               1         1         1            1           1h

Make sure that the pods doesn’t have the error status.

$ kubectl get pods -n istio-system

grafana-97fb6966d-tld9r                   1/1     Running     0          93s
istio-citadel-76f9586b8b-d7vxx            1/1     Running     0          92s
istio-cleanup-secrets-1.2.5-hshgx         0/1     Completed   0          96s
istio-egressgateway-68684cbbb-hrw7d       1/1     Running     0          93s
istio-galley-78f65c8469-vktc7             1/1     Running     0          93s
istio-grafana-post-install-1.2.5-rkj9w    0/1     Completed   0          96s
istio-ingressgateway-6b59d4c98d-tsglm     1/1     Running     0          93s
istio-init-crd-10-wgfvc                   0/1     Completed   0          4m38s
istio-init-crd-11-nzcf6                   0/1     Completed   0          4m38s
istio-init-crd-12-jljxf                   0/1     Completed   0          4m38s
istio-pilot-58745655fd-zxhhg              2/2     Running     0          93s
istio-policy-65bc95f478-46zbq             2/2     Running     1          93s
istio-security-post-install-1.2.5-qx7cf   0/1     Completed   0          96s
istio-sidecar-injector-76f487845d-x5gqr   1/1     Running     0          92s
istio-telemetry-64dd494f8f-dhp7q          2/2     Running     2          93s
istio-tracing-595796cf54-hd6kp            1/1     Running     0          92s
kiali-55fcfc86cc-86blp                    1/1     Running     0          93s
prometheus-5679cb4dcd-jcdhc               1/1     Running     0          92s

Congratulations, you finished the setup !

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