root / snf-deploy / snfdeploy / lib.py @ 954ff0d8
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#!/usr/bin/python
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# Copyright (C) 2010, 2011, 2012, 2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A. OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import time |
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import ipaddr |
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import os |
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import signal |
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import ConfigParser |
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import sys |
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import re |
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import random |
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import subprocess |
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import imp |
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HEADER = '\033[95m'
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OKBLUE = '\033[94m'
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OKGREEN = '\033[92m'
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WARNING = '\033[93m'
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FAIL = '\033[91m'
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ENDC = '\033[0m'
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def disable_color(): |
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global HEADER
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global OKBLUE
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global OKGREEN
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global WARNING
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global FAIL
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global ENDC
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HEADER = ''
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OKBLUE = ''
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OKGREEN = ''
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WARNING = ''
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FAIL = ''
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ENDC = ''
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if not sys.stdout.isatty(): |
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disable_color() |
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class Host(object): |
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def __init__(self, hostname, ip, mac, domain, os, passwd): |
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self.hostname = hostname
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self.ip = ip
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self.mac = mac
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self.domain = domain
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self.os = os
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self.passwd = passwd
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@property
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def fqdn(self): |
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return self.hostname + "." + self.domain |
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@property
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def arecord(self): |
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return self.fqdn + " 300 A " + self.ip |
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@property
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def ptrrecord(self): |
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return ".".join(raddr(self.ip)) + ".in-addr.arpa 300 PTR " + self.fqdn |
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@property
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def cnamerecord(self): |
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return "" |
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class Alias(Host): |
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def __init__(self, host, alias): |
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super(Alias, self).__init__(host.hostname, host.ip, host.mac, |
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host.domain, host.os, host.passwd) |
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self.alias = alias
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@property
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def cnamerecord(self): |
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return self.fqdn + " 300 CNAME " + self.hostname + "." + self.domain |
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@property
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def ptrrecord(self): |
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return "" |
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@property
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def arecord(self): |
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return "" |
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@property
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def fqdn(self): |
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return self.alias + "." + self.domain |
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class Env(object): |
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def update_packages(self, os): |
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for section in self.conf.files[os]: |
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self.evaluate(os, section)
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def evaluate(self, filename, section): |
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for k, v in self.conf.get_section(filename, section): |
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setattr(self, k, v) |
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def __init__(self, conf): |
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self.conf = conf
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for f, sections in conf.files.iteritems(): |
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for s in sections: |
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self.evaluate(f, s)
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self.node2hostname = dict(conf.get_section("nodes", "hostnames")) |
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self.node2ip = dict(conf.get_section("nodes", "ips")) |
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self.node2mac = dict(conf.get_section("nodes", "macs")) |
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self.node2os = dict(conf.get_section("nodes", "os")) |
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self.node2passwd = dict(conf.get_section("nodes", "passwords")) |
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self.hostnames = [self.node2hostname[n] |
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for n in self.nodes.split(",")] |
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self.ips = [self.node2ip[n] |
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for n in self.nodes.split(",")] |
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self.net = ipaddr.IPNetwork(self.subnet) |
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self.nodes_info = {}
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self.hosts_info = {}
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self.ips_info = {}
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for node in self.nodes.split(","): |
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host = Host(self.node2hostname[node],
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self.node2ip[node],
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self.node2mac[node], self.domain, self.node2os[node], |
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self.node2passwd[node])
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self.nodes_info[node] = host
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self.hosts_info[host.hostname] = host
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self.ips_info[host.ip] = host
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self.cluster = Host(self.cluster_name, self.cluster_ip, None, |
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self.domain, None, None) |
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# This is needed because "".split(",") -> ['']
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if self.cluster_nodes: |
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self.cluster_nodes = self.cluster_nodes.split(",") |
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else:
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self.cluster_nodes = []
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self.cluster_hostnames = [self.node2hostname[n] |
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for n in self.cluster_nodes] |
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self.cluster_ips = [self.node2ip[n] |
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for n in self.cluster_nodes] |
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self.master = self.nodes_info[self.master_node] |
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self.roles_info = {}
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for role, node in conf.get_section("synnefo", "roles"): |
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self.roles_info[role] = Alias(self.nodes_info[node], role) |
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setattr(self, role, self.roles_info[role]) |
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self.astakos = self.accounts |
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# This is the nodes that get nfs mount points
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self.mount = self.ips[:] |
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self.mount.remove(self.pithos.ip) |
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class Status(object): |
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STATUSES = [ |
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"check",
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"prepare",
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"install",
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"restart",
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"initialize",
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"test",
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"ok",
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] |
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def create_section(self, ip): |
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try:
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section = self.config.items(ip, True) |
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except ConfigParser.NoSectionError:
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self.config.add_section(ip)
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def __init__(self, args): |
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self.config = ConfigParser.ConfigParser()
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self.config.optionxform = str |
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self.statusfile = os.path.join(args.confdir, "status.conf") |
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self.config.read(self.statusfile) |
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def check_status(self, ip, component_class): |
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try:
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return self.config.get(ip, component_class.__name__, True) |
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except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
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return None |
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def update_status(self, ip, component_class, status): |
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self.create_section(ip)
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self.config.set(ip, component_class.__name__, status)
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def write_status(self): |
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with open(self.statusfile, 'wb') as configfile: |
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self.config.write(configfile)
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class Conf(object): |
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files = { |
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"nodes": ["network", "info"], |
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"deploy": ["dirs", "packages", "keys", "options"], |
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"vcluster": ["cluster", "image", "network"], |
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"synnefo": ["cred", "synnefo", "roles"], |
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"wheezy": ["debian", "ganeti", "synnefo", "other"], |
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} |
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confdir = "/etc/snf-deploy"
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def get_ganeti(self, cluster_name): |
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self.files["ganeti"] = [cluster_name] |
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def __init__(self, args): |
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self.confdir = args.confdir
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self.get_ganeti(args.cluster_name)
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for f in self.files.keys(): |
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setattr(self, f, self.read_config(f)) |
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for f, sections in self.files.iteritems(): |
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for s in sections: |
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for k, v in self.get_section(f, s): |
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if getattr(args, k, None): |
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self.set(f, s, k, getattr(args, k)) |
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if args.autoconf:
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self.autoconf()
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def autoconf(self): |
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#domain = get_domain()
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#if domain:
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# self.nodes.set("network", "domain", get_domain())
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# self.nodes.set("network", "subnet", "/".join(get_netinfo()))
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# self.nodes.set("network", "gateway", get_default_route()[0])
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self.nodes.set("hostnames", "node1", get_hostname()) |
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self.nodes.set("ips", "node1", get_netinfo()[0]) |
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self.nodes.set("info", "nodes", "node1") |
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self.nodes.set("info", "public_iface", get_default_route()[1]) |
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def read_config(self, f): |
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config = ConfigParser.ConfigParser() |
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config.optionxform = str
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filename = os.path.join(self.confdir, f) + ".conf" |
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config.read(filename) |
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return config
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def set(self, conf, section, option, value): |
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c = getattr(self, conf) |
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c.set(section, option, value) |
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def get(self, conf, section, option): |
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c = getattr(self, conf) |
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return c.get(section, option, True) |
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def get_section(self, conf, section): |
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c = getattr(self, conf) |
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return c.items(section, True) |
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def print_config(self): |
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for f in self.files.keys(): |
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getattr(self, f).write(sys.stdout) |
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def debug(host, msg, info=""): |
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print " ".join([HEADER, host, OKBLUE, msg, OKGREEN, info, ENDC]) |
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def check_pidfile(pidfile): |
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print("Checking pidfile " + pidfile)
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try:
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f = open(pidfile, "r") |
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pid = f.readline() |
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os.kill(int(pid), signal.SIGKILL)
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f.close() |
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os.remove(pidfile) |
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time.sleep(5)
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except:
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pass
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def random_mac(): |
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mac = [0x52, 0x54, 0x56, |
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random.randint(0x00, 0xff), |
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random.randint(0x00, 0xff), |
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random.randint(0x00, 0xff)] |
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return ':'.join(map(lambda x: "%02x" % x, mac)) |
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def create_dir(d, clean=False): |
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os.system("mkdir -p " + d)
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if clean:
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try:
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os.system("rm -f %s/*" % d)
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except:
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pass
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def get_netinfo(): |
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_, pdev = get_default_route() |
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r = re.compile(".*inet (\S+)/(\S+).*")
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s = subprocess.Popen(['ip', 'addr', 'show', 'dev', pdev], |
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stdout=subprocess.PIPE) |
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for line in s.stdout.readlines(): |
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match = r.search(line) |
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if match:
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ip, size = match.groups() |
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break
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return ip, size
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def get_hostname(): |
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s = subprocess.Popen(['hostname', '-s'], stdout=subprocess.PIPE) |
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return s.stdout.readline().strip()
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def get_domain(): |
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s = subprocess.Popen(['hostname', '-d'], stdout=subprocess.PIPE) |
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return s.stdout.readline().strip()
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def get_default_route(): |
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r = re.compile("default via (\S+) dev (\S+)")
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s = subprocess.Popen(['ip', 'route'], stdout=subprocess.PIPE) |
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for line in s.stdout.readlines(): |
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match = r.search(line) |
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if match:
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gw, dev = match.groups() |
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break
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return (gw, dev)
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def import_conf_file(filename, directory): |
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return imp.load_module(filename, *imp.find_module(filename, [directory]))
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def raddr(addr): |
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return list(reversed(addr.replace("/", "-").split("."))) |