An extension to Lunar's Tesla scripts

create-accounts.sh

#!/bin/sh

# Adds your password and SSH pub key to 3 users. root, tesla, yourUsername

if [ "$accountUserToSaveToCar" = "yourUsername" ] || [ -z "$accountUserToSaveToCar" ]; then
  echo "Please set config parameter accountUserToSaveToCar"
  exit 1
fi

if [ "$accountPassToSaveToCar" = "myCarIsRooted" ] || [ -z "$accountPassToSaveToCar" ]; then
  echo "Please set config parameter accountPassToSaveToCar"
  exit 1
fi

if [ "$keyToSaveToCar" = "ssh-rsa first example" ] || [ -z "$keyToSaveToCar" ]; then
    echo "If you want to use an SSH cert, set config parameter keyToSaveToCar"
fi

# Make SSH dirs
mkdir --mode=700 /root/.ssh 2>&1
mkdir --mode=700 /home/tesla/.ssh 2>&1
mkdir --mode=700 -p /home/"$accountUserToSaveToCar"/.ssh 2>&1

# Add user account and set your password for root, tesla, and $accountUserToSaveToCar
if getent passwd "$accountUserToSaveToCar" >/dev/null 2>&1; then
  echo "$accountUserToSaveToCar already exists"
else
  echo root:"$accountPassToSaveToCar" | chpasswd
  echo tesla:"$accountPassToSaveToCar" | chpasswd
  usermod -s /bin/bash tesla
  useradd -s /bin/bash -G admin,root,sudo,tesla -c "Car OWNER account DO NOT REMOVE" "$accountUserToSaveToCar"
  echo "$accountUserToSaveToCar":"$accountPassToSaveToCar" | chpasswd
fi

# Add the $keyToSaveToCar to root, tesla, and $accountUserToSaveToCar
grep --quiet "$keyToSaveToCar" /root/.ssh/authorized_keys && echo "Already added key to /root" || echo "$keyToSaveToCar" >>/root/.ssh/authorized_keys
grep --quiet "$keyToSaveToCar" /home/tesla/.ssh/authorized_keys && echo "Already added key to /home/tesla" || echo "$keyToSaveToCar" >>/home/tesla/.ssh/authorized_keys
grep --quiet "$keyToSaveToCar" /home/"$accountUserToSaveToCar"/.ssh/authorized_keys && echo "Already added key to /home/$accountUserToSaveToCar" || echo "$keyToSaveToCar" >>/home/"$accountUserToSaveToCar"/.ssh/authorized_keys

# Housekeeping
echo ""  >> /etc/sudoers && echo "$accountUserToSaveToCar ALL=(ALL) NOPASSWD:ALL"  >> /etc/sudoers
chown -R tesla:tesla /home/tesla/.ssh
chown -R "$accountUserToSaveToCar":"$accountUserToSaveToCar" /home/"$accountUserToSaveToCar"
chmod 600 /root/.ssh/authorized_keys && chmod 600 /home/tesla/.ssh/authorized_keys && chmod 600 /home/"$accountUserToSaveToCar"/.ssh/authorized_keys
chmod -R 700 "$homeOfLunars" >/dev/null 2>&1