Kubernetes With Dotnet Core & Angular

Documentations

• https://docs.microsoft.com/en-us/azure/aks/tutorial-kubernetes-prepare-app
• https://kubernetes.io/docs/tutorials/kubernetes-basics/create-cluster/cluster-intro

Tools

• Docker toolbox
• Azure CLI
• Helm CLI
• kubectl

Step by step

Step 1: Build docker images and push them to Azure Container Registry(ACR)

• Create Container Registry (contain images)

    az group create --name myResourceGroup --location eastus    
    az acr create --resource-group myResourceGroup --name {acrName} --sku Basic
  

• Build images for .Net core

    docker-compose build
  

• Build images for angular project

In the root directory of the project. we create two files as below:

Dockerfile file

FROM nginx:latest
COPY ./nginx-custom.conf /etc/nginx/conf.d/default.conf
COPY ./dist/ /usr/share/nginx/html

and nginx-custom.conf file

server {
  listen 80;
  location / {
    root /usr/share/nginx/html;
    index index.html index.htm;
    try_files $uri $uri/ /index.html =404;
  }
}

• To check images created successfuly or not, we use command

    docker images
  

• Push images to ACR

    az login --tenant {tenantId}
    az acr login --name {ACRname}                
    docker push {ACRname}.azurecr.io/{imagename}
  

  Ex:

  docker push osdcr.azurecr.io/candidateservice:v5
  or docker push osdcr.azurecr.io/candidateservice (default is use latest version)
  

Step 2: Create Kubernetes Cluster

az aks create --resource-group {myResourceGroup} --name {myAKSCluster} --node-count 1 --generate-ssh-keys

• Connect with Kubectl

    az aks install-cli
    az aks get-credentials --resource-group myResourceGroup --name myAKSCluster
    kubectl get nodes
  

• Configure ACR authentication

    CLIENT_ID=$(az aks show --resource-group myResourceGroup --name myAKSCluster --query "servicePrincipalProfile.clientId" --output tsv)
    
    ACR_ID=$(az acr show --name <acrName> --resource-group myResourceGroup --query "id" --output tsv)
    
    az role assignment create --assignee $CLIENT_ID --role Reader --scope $ACR_ID
  

Step 3: Deploy application to Kubernetes

• Using command line

  kubectl run settingservice --image=osdcr.azurecr.io/settingservice:v4 --port=80
  

• Using yaml file Create a yaml file with name "candidateDeploy.yaml" as below

  ---
  kind: Deployment
  apiVersion: extensions/v1beta1
  metadata:
    name: candidate
    labels:
      run: candidate
    annotations:
      deployment.kubernetes.io/revision: '1'
  spec:
    replicas: 1
    selector:
      matchLabels:
        run: candidate
    template:
      metadata:
        creationTimestamp: 
        labels:
          run: candidate
      spec:
        containers:
        - name: candidate
          image: osdcr.azurecr.io/candidateservice:v5
          ports:
          - containerPort: 80
            protocol: TCP
          imagePullPolicy: IfNotPresent
        restartPolicy: Always
  

Execute the below command to apply the yaml file

kubectl apply -f candidateDeploy.yaml

Using below command to check it worked or not

kubectl get pods

To expose the application to public internet, we use command:

kubectl expose deployment settingservice --type=LoadBalancer

Using --type=NodePort for Local

Deploy sample .Net core solution to Local Kubernetes or AKS