- Lab
- A Cloud Guru
Istio in Docker
In this hands-on lab, we will be installing Istio into a Docker environment. We'll deploy an application and using routing rules to version it.
Path Info
Table of Contents
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Challenge
Install Istio and Its Dependencies for Docker, Then Deploy the bookinfo Application
Add current user to docker group:
sudo usermod -aG docker cloud_user
Install
docker-compose
and make it executable:[cloud_user@host]$ sudo curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-Linux-x86_64" -o /usr/local/bin/docker-compose [cloud_user@host]$ sudo chmod +x /usr/local/bin/docker-compose
We'll run
docker-compose
real quick, just to make sure it works before we proceed. We'll see its help output if all is well.Now we can download Istio and unpack it:
[cloud_user@host]$ wget https://github.com/istio/istio/releases/download/1.0.6/istio-1.0.6-linux.tar.gz [cloud_user@host]$ tar -xvf istio-1.0.6-linux.tar.gz
Pre-configure kubectl for pilot:
[cloud_user@host]$ kubectl config set-context istio --cluster=istio [cloud_user@host]$ kubectl config set-cluster istio --server=http://localhost:8080 [cloud_user@host]$ kubectl config use-context istio
Create a
DOCKER_GATEWAY
environment variable:[cloud_user@host]$ export DOCKER_GATEWAY=172.28.0.1:
Bring up Istio's control plane:
[cloud_user@host]$ docker-compose -f ./istio-1.0.6/install/consul/istio.yaml up -d
Remember that this may need to be repeated to ensure the pilot container starts.
Change
bookinfo.yaml
, and set port 30080 instead of port 9081:[cloud_user@host]$ sed -i 's/9081/30080/' ./istio-1.0.6/samples/bookinfo/platform/consul/bookinfo.yaml
Bring up the application:
[cloud_user@host]$ docker-compose -f ./istio-1.0.6/samples/bookinfo/platform/consul/bookinfo.yaml up -d
Bring up the sidecars:
[cloud_user@host]$ docker-compose -f ./istio-1.0.6/samples/bookinfo/platform/consul/bookinfo.sidecars.yaml up -d
Point a browser at the public IP address of the server, on the correct port: http://<PUBLIC_SERVER_IP>:30080/productpage.
-
Challenge
Route Application Traffic to reviews Version 1 and Confirm that Version 1 (with No Stars) is Loading
Route traffic to version 1
kubectl apply -f ./istio-1.0.6/samples/bookinfo/platform/consul/destination-rule-all.yaml kubectl apply -f ./istio-1.0.6/samples/bookinfo/platform/consul/virtual-service-all-v1.yaml
-
Challenge
Route the Traffic to Version 3 of the reviews Service (with Red Stars)
We need to modify the routing service subsets to read the labels for Version 3. Edit
istio-1.0.6/samples/bookinfo/platform/consul/virtual-service-all-v1.yaml
(using whatever text editor you like) and change the subset toV3
in the reviews section. Then apply the changes with:[cloud_user@host]$ kubectl apply -f ./istio-1.0.6/samples/bookinfo/platform/consul/virtual-service-all-v1.yaml
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.