This assumes you have an ArgoCD server up and running. If not, check out my article FreeKB - OpenShift - Install Red Hat OpenShift GitOps Operator using the console (Argo CD).

You can.

• Log into ArgoCD using the CLI on OpenShift
• Log into ArgoCD on OpenShift using the console (this article)

You should see the Argo CD console.

There should be a secret named openshift-gitops-cluster in the openshift-gitops namespace.

~]$ oc get secrets --namespace openshift-gitops
NAME                                                              TYPE                                  DATA   AGE
argo-rollouts-notification-secret                                 Opaque                                0      225d
argocd-deployer-dockercfg-dxscd                                   kubernetes.io/dockercfg               1      225d
argocd-deployer-token                                             kubernetes.io/service-account-token   4      225d
argocd-deployer-token-2fbwk                                       kubernetes.io/service-account-token   4      225d
argocd-dex-server-token-h2txv                                     kubernetes.io/service-account-token   4      9d
argocd-secret                                                     Opaque                                6      9d
argocd-server-tls                                                 kubernetes.io/tls                     2      9d
builder-dockercfg-8sgcq                                           kubernetes.io/dockercfg               1      225d
builder-token-p9fv8                                               kubernetes.io/service-account-token   4      225d
cluster                                                           kubernetes.io/tls                     2      9d
default-dockercfg-k6f85                                           kubernetes.io/dockercfg               1      225d
default-token-52gmd                                               kubernetes.io/service-account-token   4      225d
deployer-dockercfg-k2m5h                                          kubernetes.io/dockercfg               1      225d
deployer-token-qnwrx                                              kubernetes.io/service-account-token   4      225d
gitops-service-cluster-dockercfg-nn6gr                            kubernetes.io/dockercfg               1      9d
gitops-service-cluster-token-mbtcs                                kubernetes.io/service-account-token   4      9d
openshift-gitops-applicationset-controller-dockercfg-ggmqg        kubernetes.io/dockercfg               1      9d
openshift-gitops-applicationset-controller-token-6cm6s            kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-application-co-800a41b5-dockercfg-kkqjh   kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-application-co-e30e77a7-dockercfg-q4rwb   kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-application-contro-800a41b5-token-4jnl8   kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-application-controller-dockercfg-6tns6    kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-application-controller-token-d7t4m        kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-application-controller-view-token-chscf   kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-dex-server-dockercfg-l8nft                kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-dex-server-token-2ng7c                    kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-redis-dockercfg-twfvk                     kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-redis-ha-dockercfg-grh59                  kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-redis-ha-token-r9hwn                      kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-redis-token-wpjgc                         kubernetes.io/service-account-token   4      9d
openshift-gitops-argocd-server-dockercfg-p6vj6                    kubernetes.io/dockercfg               1      9d
openshift-gitops-argocd-server-token-tn46t                        kubernetes.io/service-account-token   4      9d
openshift-gitops-ca                                               kubernetes.io/tls                     3      9d
openshift-gitops-cluster                                          Opaque                                1      9d
openshift-gitops-redis-initial-password                           Opaque                                2      9d
openshift-gitops-tls                                              kubernetes.io/tls                     2      9d

The secret should contain the base64 encoded admin password.

~]$ oc get secret openshift-gitops-cluster --namespace openshift-gitops --output json
{
    "apiVersion": "v1",
    "data": {
        "admin.password": "TzNxSHhZNFNFdWdpZVFtWDV0SnB2a0c3TE5XY1JhVjA="
    }

The base64 command can be used to decode the admin password. You can then sign into the Argo CD console with username admin and the decoded admin password. Or, you can log in with your OpenShift username and password.

~]$ oc get secret openshift-gitops-cluster --namespace openshift-gitops --output jsonpath="{.data.admin\.password}" | base64 --decode
O3qHxY4SEugieQmX5tJpvkG7LNWcRaV0

Once signed in, something like this should be displayed.