Deploying the application via GitOps

Deploy your instance of ArgoCD

We will start by deploying an instance of ArgoCD in your namespace.
This will be used to deploy the application.

Copy the following text, and paste it in the OpenShift Terminal to deploy ArgoCD.

cat <<EOF | oc apply -f -
---
apiVersion: argoproj.io/v1alpha1
kind: ArgoCD
metadata:
  name: argocd
spec:
  sso:
    dex:
      openShiftOAuth: true
      resources:
        limits:
          cpu: 500m
          memory: 256Mi
        requests:
          cpu: 250m
          memory: 128Mi
    provider: dex
  rbac:
    defaultPolicy: "role:readonly"
    policy: "g, system:authenticated, role:admin"
    scopes: "[groups]"
  server:
    insecure: true
    route:
      enabled: true
      tls:
        insecureEdgeTerminationPolicy: Redirect
        termination: edge
EOF

Still in the Terminal, run the following command to check the status of the ArgoCD deployment.
```
oc rollout status deploy/argocd-server
```
After a few seconds, the deployment should be complete:

Optional: If you know and understand ArgoCD and want to look at its interface, look at the following details. Otherwise, you can skip to the next step.

Details

Now that Argo is deployed, you can connect to its UI through its Route.

Let’s find the Route of the ArgoCD instance by running the following command in the Terminal:

echo "   {argocd} UI : https://$(oc get route argocd-server -ojsonpath='{.status.ingress[0].host}')/ "

You should obtain something like this:
You can now connect to the ArgoCD UI using your given credentials (userX/openshift).

Deploy the application(s) via GitOps

Now that ArgoCD is deployed in your namespace, we can use it to deploy the application via GitOps.

Copy the content of the following text, and paste it in the OpenShift Terminal to deploy the application.

cat <<EOF | oc apply -f -
---
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: claim-insurance-app
spec:
  destination:
    server: https://kubernetes.default.svc
    namespace: userX
  project: default
  source:
    path: lab-materials/05/app
    repoURL: https://github.com/rh-aiservices-bu/parasol-insurance.git
    targetRevision: main
  syncPolicy:
    automated:
      prune: true
      selfHeal: false
    syncOptions: [CreateNamespace=false]
EOF

Go to the Admin view in the OpenShift Console

Wait for the application to be fully deployed and initialized. It will be the case when the two Jobs db-init-job and populate-images are completed (Completions: 1 of 1).

Once the application is deployed, you can check its Route with the following command:

echo "   Application URL : https://$(oc get route ic-app -ojsonpath='{.status.ingress[0].host}')/ "

Open the the URL in your browser to access the application and head to the next step.