container.conf.erb

pre-start script

bash << "EOF"
  mkdir -p <%= @log_dir %>
  chown -R <%= @user %> <%= @log_dir %>
EOF

end script

start on (local-filesystems and net-device-up and runlevel [2345])
stop on runlevel [!2345]

respawn
respawn limit 2 10   # stop if there are 2 respawns in 10 seconds

setuid root
setgid root

script
  exec docker run -p :<%= @port %> -e PORT=<%= @port %> <% if not @slug_dir.nil? %>-v <%= @slug_dir %>/app:/app<% end %> <% @env.each_pair do |k,v| %> -e <%= k.upcase %>=<%= v %><% end %> <%= @image %> <% if ! @command.nil? %>/bin/sh -c 'cd /app && <%= @command %>'<% end %> > <%= @log_dir %>/<%=@c_type%>-<%= @c_num %>.log 2>&1
end script

post-start script
  for attempt in 1 2 3 4 5; do
    CONTAINER_ID=$(docker ps | grep "<%= @port %>-><%= @port %>" | awk {'print $1'})
    if [ ! -z $CONTAINER_ID ]; then
      echo $CONTAINER_ID > /var/run/<%= @c_type %>.<%= @c_num %>.container
      exit 0
    fi
  done
  exit 1
end script

post-stop script
  docker kill $(cat /var/run/<%= @c_type %>.<%= @c_num %>.container)
  rm /var/run/<%= @c_type %>.<%= @c_num %>.container
end script