Update the application

Our application is now deployed into our ArgoCD. We are now going to update our github repository synced with our application

Update your application

Go to your Github fork repository (replace GITHUB_USERNAME with your own): https://github.com/GITHUB_USERNAME/ecsdemo-nodejs/blob/master/kubernetes/deployment.yaml

Update spec.replicas: 2

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ecsdemo-nodejs
  labels:
    app: ecsdemo-nodejs
  namespace: default
spec:
  replicas: 2
  selector:
    matchLabels:
      app: ecsdemo-nodejs
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: ecsdemo-nodejs
    spec:
      containers:
      - image: brentley/ecsdemo-nodejs:latest
        imagePullPolicy: Always
        name: ecsdemo-nodejs
        ports:
        - containerPort: 3000
          protocol: TCP

Add a commit message and click on Commit changes

Access ArgoCD Web Interface

To deploy our change we can access to ArgoCD UI. Open your web browser and go to the Load Balancer url:

echo $ARGOCD_SERVER

Login using admin / $ARGO_PWD. You now have access to the ecsdemo-nodejds application. After clicking to refresh button status should be OutOfSync:

Fork url

This means our Github repository is not synchronised with the deployed application. To fix this and deploy the new version (with 2 replicas) click on the sync button, and select the APPS/DEPLOYMENT/DEFAULT/ECSDEMO-NODEJS and SYNCHRONIZE:

Fork url

After the sync completed our application should have the Synced status with 2 pods:

Fork url

All those actions could have been made with the Argo CLI also.