Wrapper to allow post-creation hooks for docker guests.

dock-run

#!/bin/sh
#
#  Launch a new docker container.
#
#  Execute run-parts against a creation directory, and make both the ID
# and the NAME of the new container availalbe to those scripts via the
# environment.
#
# Steve
# --
#


#
# The directory we'll execute against.
#
dir=/etc/docker.start.d/

#
#  Invoke docker to get the ID
#
ID=$(docker run $*)

#
#  If the ID is empty then something went wrong
#
if [ -z "$ID" ]; then
   echo "Creation failed"
   exit 1
fi


#
#  Make the ID available in the environment
#
export ID

#
#  Find the name of the new guest, and make it available.
#
NAME=$(docker inspect --format '{{ .Name }}' $ID | tr -d /)
export NAME

#
#  Execute run-parts, if the directory is present
#
if [ -d "$dir" ] ; then
   run-parts "$dir"
fi


#
#  Output the ID
#
echo $ID
exit 0