Since after make vm/bootstrap0 we are rebooting an instance, ssh key is getting regenerated. So when we run make vm/bootstrap I'm getting an error ED25519 host key for 172.16.X.X has changed and you have requested strict checking.
If you have more than 5 SSH keys inside your ~/.ssh/ directory, by default ssh client will try offering those keys to login into an instance. Also, by default, after 5 unsuccessful logins, ssh will fail, so you won't be asked for a password for the root user.
There are a few issues.
make vm/bootstrap0
we are rebooting an instance, ssh key is getting regenerated. So when we runmake vm/bootstrap
I'm getting an errorED25519 host key for 172.16.X.X has changed and you have requested strict checking.
~/.ssh/
directory, by default ssh client will try offering those keys to login into an instance. Also, by default, after 5 unsuccessful logins, ssh will fail, so you won't be asked for a password for theroot
user.