balajijudaya/aks-crud-cicd

Solution

Crud APP

1. A simple users CRUD app where users can be created, edited, viewed and deleted.
2. Written in Spring Boot
3. Backed by MySQL database

Infra

1. Create AKS cluster using terraform.

2. Note: AZ cli installed and configured

3. $ cd infra
   $ terraform init
   $ terraform plan
   $ terraform apply

4. Get Resource Group Name resource_group_name=$(terraform output -raw resource_group_name)

5. Get Cluster Name

$ az aks list \
--resource-group $resource_group_name \
--query "[].{\"K8s cluster name\":name}" \
--output table

Docker Build And Push

$ docker build <dockerhub_user>/usersapp:latest .
$ docker login -u <user>
$ docker push <dockerhub_user>/usersapp:latest .

Manually Deploy to AKS

1. Note Kubectl Configured.

2. $ cd infra
   $ echo "$(terraform output kube_config)" > ./azurek8s
   $ export KUBECONFIG=./azurek8s
   $ kubectl get nodes
   $ cd ..
   $ kubectl apply -f ./k8s
   $ kubectl get all

Configure Github Actions

1. $ az ad sp create-for-rbac \
    --name "ghActionAzureRbac" \
    --scope /subscriptions/a940bee1-b520-434a-85a4-ab091a8ddf1e/resourceGroups/rg-tender-lioness \
    --role Contributor \
    --sdk-auth

2. Get json output and add as Secret variable value AZURE_CREDS
3. Set DOCKERHUB_USER and DOCKERHUB_PASSWORD secrets

Test

1. Get kubernetes loadbalancer IP kubectl get service server-api

2. Create User:

    $ curl -X POST \
      http://20.231.239.89:8080/users \
      -d '{
    	"firstName": "test",
    	"lastName": "test1234",
    	"username": "testuser",
    	"password": "testpassword",
    	"salary": "10000",
    	"age": "28"
     	}'

   `

3. Get Users:

    $ curl -X GET \
      http://20.231.239.89:8080/users

4. Get User:

   $ curl -X GET \
      http://20.231.239.89:8080/users/3

5. Update User:

    $ curl -X PUT \
      http://20.231.239.89:8080/users/3 \
      -d '{
    	"id": 3,
    	"firstName": "test",
    	"lastName": "test1234",
    	"username": "testusernew",
    	"password": "testpassword",
    	"salary": "20000",
    	"age": "29"
    }'

6. Delete User:

  $ curl -X DELETE \
    http://20.231.239.89:8080/users/4