generate_provision_command.py

#!/usr/bin/env/python
# -*- coding: utf-8 -*-
#
# (c) 2016 WebDevOps.io
#
# This file is part of Dockerfile Repository.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
# to permit persons to whom the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all copies or substantial portions
# of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
# THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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import os
import yaml
import yamlordereddictloader
import time
import Queue
import shutil
import grp
from cleo import Output
from webdevops import Provisioner
from webdevops.command import BaseCommand

class GenerateProvisionCommand(BaseCommand):
    """
    Provisionning docker images

    generate:provision
        {--image=?*              : filter on images name }
        {--baselayout            : Build the baselayout }
        {--t|threads=0           : threads}
    """

    conf = ''

    __threads = []

    __queue = ''

    def run_task(self, configuration):
        self.__queue = Queue.Queue()
        if Output.VERBOSITY_VERBOSE <= self.output.get_verbosity():
            self.line('<info>provision :</info> %s' % configuration.get('provisionPath'))
            self.line('<info>dockerfile :</info> %s' % configuration.get('dockerPath'))
            self.line('<info>baselayout :</info> %s' % self.option('baselayout'))
            if 0 < len(self.option('image')):
                self.line('<info>images </info> :')
                for crit in self.option('image'):
                    self.line("\t * %s" % crit)
        self.__load_configuration()
        self.__build_base_layout()
        self.__create_thread()
        for image_name in self.conf['provision']:
            if 0 == len(self.option('image')) or image_name in self.option('image'):
                self.__queue.put({'image_name': image_name, 'image_config': self.conf['provision'][image_name]})
        self.__queue.join()
        if os.path.exists('baselayout.tar'):
            os.remove('baselayout.tar')

    def __create_thread(self):
        for i in range(self.get_threads()):
            thread_name = "Pixie_%d" % i
            if Output.VERBOSITY_VERBOSE <= self.output.get_verbosity():
                self.line("<info>*</info> -> Create thread <fg=magenta>%s</>" % thread_name)
            provisioner = Provisioner(
                self.configuration.get('dockerPath'),
                self.configuration.get('provisionPath'),
                self.__queue,
                self.output
            )
            provisioner.setDaemon(True)
            provisioner.setName(thread_name)
            provisioner.start()
            # self.__threads.append(provisioner)

    def __load_configuration(self):
        """
        Load the configuration for provisioning image
        """
        configuration_file = os.path.join(self.configuration.get('confPath'), 'provision.yml')
        stream = open(configuration_file, "r")
        self.conf = yaml.load(stream, Loader=yamlordereddictloader.Loader)

    def __build_base_layout(self):
        """
        Build tar file from _localscripts for bootstrap containers
        """
        if self.option('baselayout'):
            if Output.VERBOSITY_NORMAL <= self.output.get_verbosity():
                self.line('<info>* </info> Building localscipts')
            base_path = self.configuration.get('baselayoutPath')

            root_group = grp.getgrgid(0)

            shutil.make_archive(
                base_name='baselayout',
                format='bztar',
                root_dir=base_path,
                owner='root',
                group=root_group.gr_name
            )
            os.rename('baselayout.tar.bz2', 'baselayout.tar')