Deploy an application

We now have an ArgoCD fully deployed, we will now deploy an application (ecsdemo-nodejs).

Fork application repository

First step is to create a fork for the Github application we will deploy.

Login to github, go to: https://github.com/brentley/ecsdemo-nodejs.git and Fork the repo Fork Img

Then into your select the https URL by clicking into button Clone or download: Fork url

This URL will be needed when we will configure the application into ArgoCD.

Create application

Connect with ArgoCD CLI using our cluster context:

CONTEXT_NAME=`kubectl config view -o jsonpath='{.contexts[].name}'`
argocd cluster add $CONTEXT_NAME

ArgoCD provides multicluster deployment functionalities. For the purpose of this workshop we will only deploy on the local cluster.

Configure the application and link to your fork (replace the GITHUB_USERNAME):

kubectl create namespace ecsdemo-nodejs
argocd app create ecsdemo-nodejs --repo https://github.com/GITHUB_USERNAME/ecsdemo-nodejs.git --path kubernetes --dest-server https://kubernetes.default.svc --dest-namespace ecsdemo-nodejs

Application is now setup, let’s have a look at the deployed application state:

argocd app get ecsdemo-nodejs

You should have this output:

Health Status:      Missing

GROUP       KIND              NAMESPACE         NAME              STATUS     HEALTH   HOOK  MESSAGE
_           Service           ecsdemo-nodejs    ecsdemo-nodejs    OutOfSync  Missing        
apps        Deployment        default           ecsdemo-nodejs    OutOfSync  Missing        

We can see that the application is in an OutOfSync status since the application has not been deployed yet. We are now going to sync our application:

argocd app sync ecsdemo-nodejs

After a couple of minutes our application should be synchronized.

GROUP  KIND        NAMESPACE       NAME            STATUS  HEALTH   HOOK  MESSAGE
_      Service     ecsdemo-nodejs  ecsdemo-nodejs  Synced  Healthy        service/ecsdemo-nodejs created
apps   Deployment  default         ecsdemo-nodejs  Synced  Healthy        deployment.apps/ecsdemo-nodejs created