make_ssh

#!/bin/sh

# Set to your unix HOME directory path
home=/home/tom

# Reads variables from previous terraform outputs
jmpbx_ip=$( cat jumpbox_outputs.json | jq -r .jmpbx_ip.value )
devbox_ip=$( cat devbox_outputs.json | jq -r .devbox_ip.value )
username=$( cat setup_outputs.json | jq -r .ssh_user.value )

# Removes any ssh server entries from known hosts if they exist
# If this isn't done the new servers fingerprint may not match
# Leading to an inability to connect
ssh-keygen -f "$home/.ssh/known_hosts" -R "[$jmpbx_ip]:65432"
ssh-keygen -f "$home/.ssh/known_hosts" -R "$devbox_ip"

# Generates a new custom ssh_config file
ssh_config=$( cat <<-_SSH_TEMPLATE_
Host devbox\n
  Hostname $devbox_ip\n
  User ${username}\n
  ProxyCommand ssh ${username}@${jmpbx_ip} -p 65432 -A -W %h:%p\n
  Port 22\n
# Example: Forwards port 8080 from the devbox to 65430 on localhost\n
  LocalForward 65430 ${devbox_ip}:8080
_SSH_TEMPLATE_
)

echo $ssh_config > ssh_config