7600-zombie dockerfiles

README.md

docker build -t 7600-zombie .
# for original script
docker run --privileged -it 7600-zombie

# original script, except that we removed the extra start step
# this doesnt seem to exhibit the problem
docker run --privileged -it 7600-zombiedocker run --privileged -it 7600-zombie /app/run.sh without-start.coffee

Dockerfile

FROM tianon/dind

RUN apt-get update -y && apt-get install --no-install-recommends -y -q \
  curl \
  ca-certificates \
  procps

RUN mkdir /nodejs && curl http://nodejs.org/dist/v0.10.30/node-v0.10.30-linux-x64.tar.gz | tar xvzf - -C /nodejs --strip-components=1

ENV PATH /nodejs/bin:$PATH

ADD . /app
RUN chmod +x /app/run.sh
WORKDIR /app
RUN /nodejs/bin/npm install coffee-script dockerode

CMD /app/run.sh main.coffee

main.coffee

docker  = new (require('dockerode'))(socketPath: '/var/run/docker.sock')
ACTIONS = ['start', 'kill', 'remove']
LIMIT = 100

completed = 0

createContainer = ->
  docker.createContainer {
    Cmd:       '/bin/sh'
    Image:     'busybox:latest'
    OpenStdin: true
    Tty:       true
  }, (err, container) ->
    return if err

    container.attach {stream: true, stdin: true, stdout: true}, (err, ttyStream) ->
      return if err || !ttyStream

      for action in ACTIONS
        console.log "#{container.id} starting #{action}"
        container[action] ->
          console.log "#{container.id} finished #{action}"
          completed += 1
          if completed == LIMIT
            process.exit(0)

createContainer() for [1..LIMIT]

run.sh

#!/bin/bash

# start docker
docker -d -D &

echo "waiting for docker to start"
sleep 1
echo "pulling busybox"
docker pull busybox:latest

node_modules/.bin/coffee $1

# print out the proccess hierrachy
ps auxf

without-start.coffee

docker  = new (require('dockerode'))(socketPath: '/var/run/docker.sock')
LIMIT = 100
ACTIONS = ['kill', 'remove']

completed = 0

createContainer = ->
  docker.createContainer {
    Cmd:       '/bin/sh'
    Image:     'busybox:latest'
    OpenStdin: true
    Tty:       true
  }, (err, container) ->
    return if err

    container.attach {stream: true, stdin: true, stdout: true}, (err, ttyStream) ->
      return if err || !ttyStream

      for action in ACTIONS
        console.log "#{container.id} starting #{action}"
        container[action] ->
          console.log "#{container.id} finished #{action}"
          completed += 1
          if completed == LIMIT
            process.exit(0)

createContainer() for [1..LIMIT]