pantheon-keyscan.sh

#!/bin/bash

#
# Add the ssh key for the specified Pantheon site and environment
# to the user's known_hosts file.
#
# See: http://serverfault.com/questions/132970/can-i-automatically-add-a-new-host-to-known-hosts
#
# Note that this script does not remove and re-add the ssh keys;
# if you want to do that, you might as well just use -o StrictHostKeyChecking=no.
#
SITE="$1"
ENV="$2"

SITE_ID=$(terminus site info --site="$SITE" --field=id)

grep -q appserver.$ENV.$SITE_ID.drush.in ~/.ssh/known_hosts
if [ $? == 0 ]
then
    echo "appserver.$ENV.$SITE_ID.drush.in already known"
    exit 0
fi

ssh-keyscan -p 2222 appserver.$ENV.$SITE_ID.drush.in >> ~/.ssh/known_hosts