code.delx.au - monosys/blob - setup-root-ssh

   1 #!/bin/bash
   2
   3 if [ "$(id -u)" -ne 0 ]; then
   4     echo "Must be root"
   5     exit 1
   6 fi
   7
   8 set -eu
   9
  10 if [ -f /root/.ssh/id_rsa.pub ]; then
  11     echo "SSH public key already exists. Exiting!"
  12     exit 1
  13 fi
  14
  15 if [ -f /root/.ssh/config ]; then
  16     echo "SSH config already exists. Exiting!"
  17     exit 1
  18 fi
  19
  20 umask 0077
  21
  22 echo ">>> ssh-keygen"
  23 ssh-keygen
  24
  25 cat /root/.ssh/id_rsa.pub
  26
  27 echo ">>> creating .ssh/config"
  28 cat > /root/.ssh/config <<EOF
  29 Host *
  30     HashKnownHosts no
  31
  32 Host backuphost
  33     User borg
  34     Hostname backup.example.com
  35 EOF