Exercise 2 - Installing Istio on IBM Cloud Kubernetes Service¶

In this module, you will use the istioctl CLI to install Istio on your cluster.

Check if istioctl is installed in the client terminal,

$ istioctl version
2021-03-13T23:02:25.382086Z warn will use `--remote=false` to retrieve version info due to `no Istio pods in name
1.5.4

If istioctl is not installed, download the istioctl CLI and add it to your PATH:

curl -L https://istio.io/downloadIstio | ISTIO_VERSION=1.5.6 sh -

export PATH=$PWD/istio-1.5.6/bin:$PATH

List the available profiles,

istioctl profile list

Sample output:

$ istioctl profile list

Istio configuration profiles:
    minimal
    remote
    separate
    default
    demo
    empty

Install Istio with the demo Istio profile into your IKS cluster:

istioctl manifest apply --set profile=demo

Sample output:

$ istioctl manifest apply --set profile=demo

- Applying manifest for component Base...
✔ Finished applying manifest for component Base.
- Applying manifest for component Pilot...
✔ Finished applying manifest for component Pilot.
  Waiting for resources to become ready...
  Waiting for resources to become ready...
  Waiting for resources to become ready...
- Applying manifest for component IngressGateways...
- Applying manifest for component EgressGateways...
- Applying manifest for component AddonComponents...
✔ Finished applying manifest for component IngressGateways.
✔ Finished applying manifest for component EgressGateways.
✔ Finished applying manifest for component AddonComponents.

✔ Installation complete

The install can take up to 10 minutes. Ensure the corresponding pods are all in Running state before you continue.

kubectl get pods -n istio-system

Sample output:

$ kubectl get pods -n istio-system

NAME                                   READY   STATUS    RESTARTS   AGE
grafana-57cb8b8d44-zld4p               1/1     Running   0          49s
istio-egressgateway-794f9f9d64-7hxw5   1/1     Running   0          52s
istio-ingressgateway-945588978-gxtqq   1/1     Running   0          52s
istio-tracing-7fcc6f5848-8fx8j         1/1     Running   0          49s
istiod-7b7d59548-bs9x7                 1/1     Running   0          65s
kiali-6875bdf78-ppgn7                  1/1     Running   0          49s
prometheus-5d4c44597d-w49b5            2/2     Running   0          4m33s

NOTE Before you continue, make sure all the pods are deployed and either in the Running or Completed state. If they're in pending state, wait a few minutes to let the installation and deployment finish.

Check the version of your Istio:
```
istioctl version
```
Sample output:
```
client version: 1.5.4
control plane version: 1.5.4
data plane version: 1.5.4 (3 proxies)
```
Congratulations! You successfully installed Istio into your cluster.

Exercise 2 - Installing Istio on IBM Cloud Kubernetes Service¶

Continue to Exercise 3 - Deploy Guestbook with Istio Proxy¶

Continue to Exercise 3 - Deploy Guestbook with Istio Proxy ¶