Initial version of a micro platform for rapidly proxying docker containers

pdock.sh

# Pdock rapidly sets up a tiny platform for you automatically discover and 
# serve your docker services. It uses the hipache and skydock projects
# to enable rapidly connecting to your containers via subdomain names. 
# Only port 80 has to be opened, and UDP,TCP,HTTP,WebSocket should 
# work (mostly) out of the box
#
# Copyright 2014 Hamilton Turner <[email protected]>
#
#
# Examples: 
#   - Start pdock architecture, run wordpress at wordpress.basedomain.com
#     # docker run -d tutum/wordpress
#     # pdock_add_proxy_record wordpress 80
#
#   - Make Ghost Available At ghost.basedomain.com
#     # docker run -d -name ghost dockerfile/ghost
#     # pdock_add_proxy_record ghost 2368
#
#   - Run, then remove, a webserver at python-simplehttpserver.basedomain.com
#     # docker run -d hamiltont/python-simplehttpserver
#     # pdock_add_proxy_record python-simplehttpserver 8000
#     # pdock_rm_proxy_record python-simplehttpserver
#
# Install
#   source this file from your /root/.bashrc
#
# Limitations
#   - Standard docker limitations on multicast or other 
#     service discovery-based applications 
#   - Uses skydock convention on repository names to 
#     assign subdomains 
#   - Cannot (yet) auto-discover service port. I'd like to 
#     automatically discover port if there is only one used 
#     by the container
DOMAIN=basedomain.com

pdock_print_dns_records() {
  # docker run -e SKYDNS=http://172.17.0.2:8080 hamiltont/skydnsctl
  # If you are guaranteed of service health, you could run 
  # SKYDNS=http://skydns.dev.docker:8080
  SKY=`docker run -e SKYDNS=http://skydns.dev.docker:8080 hamiltont/skydnsctl`

  echo "$SKY" | grep -E "Name|Host|Port"
}

pdock_print_proxy_records() {
  docker run -rm -i -t crosbymichael/redis-cli -h hipache.dev.docker 'KEYS *'
}

pdock_add_proxy_record() {  
  NAME=$1
  PORT=$2

  docker run -rm crosbymichael/redis-cli -h hipache.dev.docker \
    RPUSH frontend:${NAME}.media.protocollar.com ${NAME}
  docker run -rm crosbymichael/redis-cli -h hipache.dev.docker \
    RPUSH frontend:${NAME}.media.protocollar.com http://${NAME}.dev.docker:${PORT}
}

pdock_inspect_proxy_record() {
  NAME=$1

  docker run -rm crosbymichael/redis-cli -h hipache.dev.docker \
    LRANGE frontend:${NAME}.${DOMAIN} 1 -1
}

pdock_list_proxy_records() {

  docker run -rm crosbymichael/redis-cli -h hipache.dev.docker \
    KEYS frontend:\*.${DOMAIN}
}

pdock_rm_proxy_record() {
  NAME=$1

  docker run -rm crosbymichael/redis-cli -h hipache.dev.docker \
    DEL frontend:${NAME}.media.protocollar.com
}

pdock_stop() {
  docker kill skydns > /dev/null
  docker kill skydock > /dev/null
  docker kill hipache > /dev/null
  docker rm skydns > /dev/null
  docker rm skydock > /dev/null
  docker rm hipache > /dev/null
}

pdock_start() {
  pdock_stop 
 
  docker run -d -p 172.17.42.1:53:53/udp -name skydns crosbymichael/skydns -nameserver 8.8.8.8:53 -domain docker
  docker run -d -v /var/run/docker.sock:/docker.sock -name skydock -link skydns:skydns \
    crosbymichael/skydock -ttl 30 -environment dev -s /docker.sock -domain docker
  docker run -d -p 80:80 -name hipache hamiltont/hipache
}

couldn't you skip the basedomain var and name your containers with the full public url?

docker run hamiltont/www.mydomain.com ...

then when you're adding proxy records

RPUSH frontend:${NAME} ${NAME}
RPUSH frontend:${NAME} http://${NAME}.dev.docker:${PORT}

Then it would work for fqdn's instead of just subdomains. Still need the exposed port to make it complete, but it's a start.