WireGuard Easy v15 - Complete rewrite with new features and improved UI. NOTE: This has breaking changes from v14. If you’re currently using v14, please back up your configuration before migrating.
v15 uses INIT_* variables for unattended setup (only used on first start)
Yes, almost all of us here on forum. CasaOS is just wrapper (web UI fronted) for docker containers.
Docs link which I provided You mention this command to run on Host (Linux, where is Your CasaOS isntalled):
First line in not necessary.
Use just second line under root user permission.
Listing all docker running: docker ps
Filter wg-easy: docker ps | grep wg-easy
Maybe there will be name like wg-easy-v15 something like that.
This part of command:
cli db:admin:reset --password <new_password>
Will be executed inside running container, so You will change password. No matter If You run it on CasaOS or whatever else, this command maybe successful for You.