AzureDevOps/instruction.txt at master · d2burkhalter/AzureDevOps · GitHub

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#instructions to manually provision and run application
#git repo used in project git clone https://github.com/Azure-Samples/azure-voting-app-redis.git

#in directory made from repo run
docker-compose up -d
to create containers and start application

docker images shows created images
docker ps shows running containers

docker-compose down stops containers

#create azure resource group
az group create --name $GROUPNAME --location eastus
#create azure container registry
az acr create --resource-group $GROUPNAME --name $ACRNAME --sku Basic
#login to acr
az acr login --name $ACRNAME
#find acr login server
az acr list --resource-group $GROUPNAME --query "[].{acrLoginServer:loginServer}" --output table
#tag image
docker tag azure-vote-front $LOGINSERVER/azure-vote-front:v1
#push image to acr (make sure you are logged in to acr or else unauthorized error)
docker push $LOGINSERVER/azure-vote-front:v1
#get list of images in acr
az acr repository list --name $ACRNAME --output table
#get tags for acr image
az acr repository show-tags --name $ACRNAME --repository azure-vote-front --output table

#create active directory service principal for AKS cluster to interact with Azure resources
az ad sp create-for-rbac --skip-assignment (returns appID,displayName,name,password,tenant)
#get acr resource id $ACRID
az acr show --resource-group $GROUPNAME --name $ACRNAME --query "id" --output tsv
#create role for aks to use acr images
az role assignment create --assignee $APPID --scope $ACRID --role Reader
#create AKS cluster
az aks create \
    --resource-group $GROUPNAME \
    --name $CLUSTERNAME \
    --node-count 1 \
    --service-principal $APPID \
    --client-secret $ADPASS \
    --generate-ssh-keys

#cli for kubernetes (kubectl)
az aks install-cli
#configure kubectl
az aks get-credentials --resource-group $GROUPNAME --name $CLUSTERNAME
#show nodes
kubectl get nodes

#don't forget to make changes to .yaml for to use acr for azure-vote-front
#deploy application
kubectl apply -f azure-vote-all-in-one-redis.yaml
#monitor deployment
kubectl get service azure-vote-front --watch


#scalling
#manual
kubectl scale --replicas=5 deployment/azure-vote-front
#autoscale first get aks cluster version
az aks show --resource-group $GROUPNAME --name $CLUSTERNAME --query kubernetesVersion
#if aks cluster version is less than 1.10
git clone https://github.com/kubernetes-incubator/metrics-server.git
kubectl create -f metrics-server/deploy/1.8+/
#set autoscale
kubectl autoscale deployment azure-vote-front --cpu-percent=50 --min=3 --max=10

#update application
#build another image
docker-compose up --build -d
#tag new name
docker tag azure-vote-front $LOGINSERVER/azure-vote-front:<newTag>
#push new image
docker push $LOGINSERVER/azure-vote-front:<newTag>
#to provide maxium uptime need multiple front end instances
kubectl scale --replicas=3 deployment/azure-vote-front
kubectl set image deployment azure-vote-front azure-vote-front=$LOGINSERVER/azure-vote-front:<newTag>
#track progress
kubectl get pods

#update AKS cluster
#check for AKS upgrades
az aks get-upgrades --resource-group $GROUPNAME --name $CLUSTERNAME --output table
#upgrade cluster
az aks upgrade --resource-group $GROUPNAME --name $CLUSTERNAME --kubernetes-version 1.10.9

#delete everything
az group delete --name $GROUPNAME --yes --no-wait