vagrant login as root by default

Question

Problem: frequently the first command I type to my boxes is su -.

Question: how do I make vagrant ssh use the root user by default?

Answer 1

Note: Only use this method for local development, it's not secure. You can setup password and ssh config while provisioning the box. For example with debian/stretch64 box this is my provision script:

config.vm.provision "shell", inline: <<-SHELL
    echo -e "vagrant\nvagrant" | passwd root
    echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
    sed -in 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
    service ssh restart
SHELL

This will set root password to vagrant and permit root login with password. If you are using private_network say with ip address 192.168.10.37 then you can ssh with ssh root@192.168.10.37

You may need to change that echo and sed commands depending on the default sshd_config file.