ArgoCD comes with default admin
username.
I would like to change the default admin
username for security reasons.
Is it possible?
How to do it?
Check out the official documentation.
You can do it with ArgoCD CLI:
# if you are managing users as the admin user, <current-user-password> should be the current admin password.
argocd account update-password \
--account <name> \
--current-password <current-user-password> \
--new-password <new-user-password>
This is not documented but I guess the passwords are actually stored in a Secret.
That being said, using the admin account is not recommended. You should disable the admin account and create individual accounts or, better, use SSO with your existing user base.