istio101

Istio Hands-On

Project maintained by Harald-U Hosted on GitHub Pages — Theme by mattgraham

Getting Started - Prepare Your Environment ## Exercise 1 - Accessing your Kubernetes Cluster ## Exercise 2 - Installing Istio ## Exercise 3 - Deploy Guestbook with Istio Proxy ## Exercise 4 - Expose the service mesh with the Istio Ingress Gateway ## Exercise 5 - Telemetry ## Exercise 6 - Traffic Management ## Exercise 7 - Security

Exercise 1 - Accessing your Kubernetes Cluster

You must already have an IBM account, with a cluster created or assigned to you as documented in the previous step.

Connect to your cluster using the IBM Cloud Shell

For this lab we use the new IBM Cloud Shell (currently in beta) which provides all the necessary tools. Use this web-based shell to perform the tasks in this lab.

Using Chrome or Firefox, go to the IBM Cloud dashboard, make sure the IBM account is selected, and click on the terminal icon in the menu bar.

Note: IBM Cloud Shell has limits on both continuous and weekly usage. You can use Cloud Shell for up to 4 hours continuously and up to 30 hours in a week. Your sessions close when you reach these limits, and any files or data in your workspace are removed. That is why at certain points throughout this lab we tell you to save some settings in the external environment.txt file (created at the end of the Getting Started) so that you can easily recreate your environment.

Use the IBM Cloud Shell to continue with the labs.

Access your cluster

Learn how to set the context to work with your cluster by using the kubectl CLI, access the Kubernetes dashboard, and gather basic information about your cluster.

Set the context for your cluster in your CLI. Every time you log in to the IBM Cloud Kubernetes Service CLI to work with the cluster, you must run these commands to set the path to the cluster’s configuration file as a session variable. The Kubernetes CLI uses this variable to find a local configuration file and certificates that are necessary to connect with the cluster in IBM Cloud.

a. List the available clusters. You should see the cluster you were assigned.
```
ibmcloud ks clusters
```
b. Set an environment variable for your cluster name:
```
export MYCLUSTER=<your_cluster_name>
```
Copy this ‘export’ command to your environment file.

c. Download the configuration file and certificates for your cluster using the cluster config command.
```
ibmcloud ks cluster config $MYCLUSTER
```
c. Copy and paste the output export command from the output of previous step and save it in your environment file, too. This will set the KUBECONFIG environment variable and configure your kubectl CLI to run commands against your cluster. Example: export KUBECONFIG=/tmp/ic/cloudshell-f64391c4-b01c-4537-...yml
Get basic information about your cluster and its worker nodes. This information can help you manage your cluster and troubleshoot issues.

a. View details of your cluster.
```
ibmcloud ks cluster get $MYCLUSTER
```
b. Verify the worker nodes in the cluster.
```
ibmcloud ks workers $MYCLUSTER
ibmcloud ks worker get <worker_ID>
```
Validate access to your cluster.

a. View nodes in the cluster.
```
kubectl get node
```
b. View services, deployments, and pods.
```
kubectl get svc,deploy,po --all-namespaces
```

Clone the lab repo

From your command line, run:

git clone https://github.com/Harald-U/istio101.git
cd istio101/workshop/guestbook/v2

This is the working directory for the workshop.

istio101

Exercise 1 - Accessing your Kubernetes Cluster

Connect to your cluster using the IBM Cloud Shell

Access your cluster

Clone the lab repo

Continue with Exercise 2 - Installing Istio