torosent / k8s-workshop-microservices

k8s-workshop-microservices

Architecture

Challenges

Simple deployment

1. Build the containers. Example:

docker build -t tomerplayground.azurecr.io/webstore:latest .

2. Provision Azure Container Registry & Azure Storage
3. Setup ACR in the K8S cluster

kubectl create secret docker-registry acr-auth --docker-server <acr-login-server> --docker-username <service-principal-ID> --docker-password <service-principal-password> --docker-email <email-address>

4. Push the containers into ACR
5. Get Azure storage connection string
6. Insert the connection string in secret.yaml

to prepare secret, we need to encode it to Base64

echo -n "admin" | base64 ` or use `https://www.base64encode.org/

7. Edit the relevant YAML files and deploy the micro-services application in K8S.

kubectl create -f . --save-config

Updating a service

8. Update printer.cs Line 61 with a new version.
9. Build and push the container

 docker build -t tomerplayground.azurecr.io/printingservice:latest .
 docker push tomerplayground.azurecr.io/printingservice:latest

10. Apply the printing.yaml file.

kubectl apply -f printing.yaml

Helm

Remove the previous webstore deployment

kubectl delete deployment webstore-deployment

1. Create Helm chart for Webstore. Example

helm create stickerstore

2. Install Stickerstore chart

helm upgrade --install stickerstore ./stickerstore

3. Change a value like replicaCount and upgrade

helm upgrade --install stickerstore ./stickerstore
--set replicaCount=3

Brigade

1. Install Brigade

helm repo add brigade https://azure.github.io/brigade
helm install -n brigade brigade/brigade

2. Create a Github token Here
3. Create a Github webhook and connect it with brigade. Instructions
4. Edit values.yaml and install the brigade project

helm install brigade/brigade-project -n stickerstore-project -f values.yaml

5. Commit an edit to index.html in Webstore and watch Brigade

kubectl get pods
kubectl logs <pod-name>

Jenkins

Follow the Jenkins readme file instructions