SSHing throught a Jumphost

jumpssh

#!/bin/bash

host=${1}
domain=service.consul
environment=staging
#environment=prod

credprefix=mycompany

# IP address of jumphost
jumphost=12.34.56.78

if [ "${1}" == "" ]; then
    echo "You must supply a hostname"
    exit 1
fi

if [[ "${host}" == *.*.*.* ]]; then
    echo "Detected IP"
else
    echo "Detected Hostname"
    host=${1}.${domain}
fi

credpath=~/.ssh/${credprefix}-${environment}.pem

sed -i -e "/${domain}/ d" ~/.ssh/known_hosts

echo "Connecting to jumphost ${jumphost}..."
echo "ssh -i ${credpath} -L 2222:${host}:22 -f -n ubuntu@${jumphost}"
ssh -i ${credpath} -L 2222:${host}:22 -f -n ubuntu@${jumphost} tail
echo "Connected to jumphost."
echo ""

echo "Connecting to ${host} through jumphost..."
echo "ssh -i ${credpath} -p 2222 ubuntu@localhost"
ssh -i ${credpath} -p 2222 ubuntu@localhost