Configuring Argo CD against multiple clusters

If you are planning to use Argo CD to deploy applications to external clusters, you need to add the new cluster’s credentials using the argocd CLI. You can skip this step if you want to deploy applications in the same cluster where Argo CD is installed (the kubernetes.default.svc file already exists and should be used in this case).

To register new clusters, perform the following steps using the argocd CLI you installed previously:

1. Log into the new cluster we want to register:

   $ oc login -u <user> https://<api-newcluster>:6443

2. Now, log into the cluster where Argo CD is installed using oc login:

   $ oc login -u <user> https://<api-argocluster>:6443

3. At this point, you should have both clusters in your kubeconfig file:

   $ oc config get-contexts
   CURRENT NAME         CLUSTER    AUTHINFO NAMESPACE
         &...