#!/bin/bash

create_ansible_group() {
  groupadd -g 10000 ansible
}

create_ansible_user() {
  useradd -g 10000 -u 10000 -c "Ansible User" -m ansible
}

add_ansible_user_to_sudoers() {
  echo -e "ansible\tALL=NOPASSWD: ALL" >/etc/sudoers.d/ansible
}

add_ansible_ssh_key() {
  mkdir -v ~ansible/.ssh
  echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFghGMnDdkfNC6JPEhMxrKhYDmNcXjHXp/y/mf3uLtzb Ansible SSH Key" >~ansible/.ssh/authorized_keys
  chown -vR ansible:ansible ~ansible/.ssh
  chmod 700 ~ansible/.ssh
  chmod 600 ~ansible/.ssh/authorized_keys
}

copy_setup_to_host() {
  local HOST=$1

  scp $0 ${HOST}:/tmp
}

install() {
  local HOST=$1

  if [[ -z ${HOST} ]]; then
    echo "No host given."
    exit 1
  fi

  copy_setup_to_host ${HOST}
  ssh -t ${HOST} "sudo /tmp/$0 setup"
}

setup() {
  create_ansible_group
  create_ansible_user
  add_ansible_user_to_sudoers
  add_ansible_ssh_key
}

CMD=$1
shift
eval $CMD $*