ArgoCD Lab

Pre-requisites¶

Make sure your environment is setup properly for the lab.

Check the Environment Setup page for your setup.

Deploying the app¶

• Open the application menu at the top of the OpenShift console to find the ArgoCD url

• Click on "Log in via OpenShift"

• Now go back to the ArgoCD home and click on NEW APP.

• Add the below details:
• Application Name: sample
• Project - default
• SYNC POLICY: Manual
• REPO URL: https://github.com/ibm-cloud-architecture/cloudnative_sample_app_deploy
• Revision: HEAD
• Path: openshift

• Cluster - Select the default one https://kubernetes.default.svc to deploy in-cluster
• Namespace - default
• Click Create to finish

• You will now see the available apps.

• Initially, the app will be out of sync. It is yet to be deployed. You need to sync it for deploying.

To sync the application, click SYNC and then SYNCHRONIZE.

• Wait till the app is deployed.

• Once the app is deployed, click on it to see the details.

Verifying the deployment¶

• Access the app to verify if it is correctly deployed.
• List the cloudnativesampleapp-service route

  oc get route
  

  It should have an IP under EXTERNAL-IP column

  NAME                 HOST/PORT                                     PATH   SERVICES                       PORT   TERMINATION   WILDCARD
  cloudnative-sample   cloudnative-sample-default.apps-crc.testing          cloudnativesampleapp-service   9080                 None
  

• Set an environment variable APP_URL using the EXTERNAL-IP

  export APP_URL="http://$(oc get route cloudnative-sample -o jsonpath='{.status.ingress[0].host}')"
  echo ARGOCD_SERVER=$APP_URL
  

• Access the url using curl

  curl "$APP_URL/greeting?name=Carlos"
  

  {"id":2,"content":"Welcome to Cloudnative bootcamp !!! Hello, Carlos :)"}
  

Using the ArgoCD CLI¶

• Login using the cli.
• Login as the admin user.
• The initial password is autogenerated to be the pod name of the Argo CD API server. This can be retrieved with the following command.

  oc get pods -n argocd -l app.kubernetes.io/name=argocd-server -o name | cut -d'/' -f 2
  

• Now login as follows.

  argocd login $ARGOCD_SERVER
  

WARNING: server certificate had error: x509: cannot validate certificate for 10.97.240.99 because it doesn't contain 
any IP SANs. Proceed insecurely (y/n)? y
Username: admin
Password: 
'admin' logged in successfully
Context '10.97.240.99' updated

argocd app list

NAME    CLUSTER                         NAMESPACE  PROJECT  STATUS  HEALTH   SYNCPOLICY  CONDITIONS  REPO                                                                     PATH   TARGET
sample  https://kubernetes.default.svc  default    default  Synced  Healthy  <none>      <none>      https://github.com/ibm-cloud-architecture/cloudnative_sample_app_deploy  openshift  HEAD

argocd app get sample

Name:               sample
Project:            default
Server:             https://kubernetes.default.svc
Namespace:          default
URL:                https://10.97.240.99/applications/sample
Repo:               https://github.com/ibm-cloud-architecture/cloudnative_sample_app_deploy
Target:             HEAD
Path:               openshift
SyncWindow:         Sync Allowed
Sync Policy:        <none>
Sync Status:        Synced to HEAD (9684037)
Health Status:      Healthy

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

argocd app history sample

ID  DATE                           REVISION
0   2020-02-12 21:10:32 -0500 EST  HEAD (9684037)

References¶

• ArgoCD