java-k8s-workshop

This repo contains materials for one-day Java apps on Azure Kubernetes Service training scheduled for 30th of January 2019.

WORK IN PROGRESS

Lab preparation

We will use shell.azure.com cloud shell (bash) for experiments. Before you will start please create FORK of our repo [email protected]:azurecz/java-k8s-workshop.git

Clone repo

mkdir myexperiment
cd myexperiment

# clone repo first
git clone https://github.com/azurecz/java-k8s-workshop.git

# and now lets step into folder with project files.
cd java-k8s-workshop

Create Azure Container Registry

We will use Azure container registry for our images, lets deploy ACR and push images there ..

Please use especially for ACR_NAME your unique name - it is unique in whole Azure environment.

Pleace update file rc with your unique names for services.

# variables
source rc

# create resource group
az group create --location ${LOCATION} --name ${RESOURCE_GROUP}

# create ACR
az acr create --name $ACR_NAME --resource-group $RESOURCE_GROUP --sku Standard --location ${LOCATION} --admin-enabled true

# Get ACR_URL for future use with docker-compose and build
export ACR_URL=$(az acr show --name $ACR_NAME --resource-group $RESOURCE_GROUP --query "loginServer" --output tsv)
echo $ACR_URL

# Get ACR key for our experiments
export ACR_KEY=$(az acr credential show --name $ACR_NAME --resource-group $RESOURCE_GROUP --query "passwords[0].value" --output tsv)
echo $ACR_KEY

Create Azure Kubernetes Service

# aks - create cluster
az aks create --resource-group ${RESOURCE_GROUP} --name ${AKS_CLUSTER_NAME} \
  --no-ssh-key --kubernetes-version 1.12.8 \
  --node-count 3 --node-vm-size Standard_DS1_v2 \
  --location ${LOCATION}
# kube config
az aks get-credentials --name ${AKS_CLUSTER_NAME} --resource-group ${RESOURCE_GROUP}
# patch kubernetes configuration to be able to access dashboard
kubectl create clusterrolebinding kubernetes-dashboard \
  -n kube-system --clusterrole=cluster-admin \
  --serviceaccount=kube-system:kubernetes-dashboard

Setup access for AKS to ACR

# Get the id of the service principal configured for AKS
CLIENT_ID=$(az aks show --resource-group $RESOURCE_GROUP --name $AKS_CLUSTER_NAME --query "servicePrincipalProfile.clientId" --output tsv)

# Get the ACR registry resource id
ACR_ID=$(az acr show --name $ACR_NAME --resource-group $RESOURCE_GROUP --query "id" --output tsv)

# Create role assignment
az role assignment create --assignee $CLIENT_ID --role Reader --scope $ACR_ID

Labs

01 - Building Java application containers

02 - Introduction to Azure Kubernetes Service

03 - Deploy Java application to Azure Kubernetes Service

04 - Optimizing deployment in Kubernetes

05 - CI-CD with AKS, GitHub and Jenkins