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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ# Copyright (C) 2012 Canonical Ltd. # Copyright (C) 2012 Cosmin Luta # Copyright (C) 2012 Yahoo! Inc. # Copyright (C) 2012 Gerard Dethier # Copyright (C) 2013 Hewlett-Packard Development Company, L.P. # # Author: Cosmin Luta # Author: Scott Moser # Author: Joshua Harlow # Author: Gerard Dethier # Author: Juerg Haefliger # # This file is part of cloud-init. See LICENSE file for license information. import os import time from socket import gaierror, getaddrinfo, inet_ntoa from struct import pack from cloudinit import log as logging from cloudinit import sources, subp from cloudinit import url_helper as uhelp from cloudinit import util from cloudinit.net import dhcp from cloudinit.sources.helpers import ec2 LOG = logging.getLogger(__name__) class CloudStackPasswordServerClient: """ Implements password fetching from the CloudStack password server. http://cloudstack-administration.readthedocs.org/ en/latest/templates.html#adding-password-management-to-your-templates has documentation about the system. This implementation is following that found at https://github.com/shankerbalan/cloudstack-scripts/ blob/master/cloud-set-guest-password-debian """ def __init__(self, virtual_router_address): self.virtual_router_address = virtual_router_address def _do_request(self, domu_request): # The password server was in the past, a broken HTTP server, but is now # fixed. wget handles this seamlessly, so it's easier to shell out to # that rather than write our own handling code. output, _ = subp.subp( [ "wget", "--quiet", "--tries", "3", "--timeout", "20", "--output-document", "-", "--header", "DomU_Request: {0}".format(domu_request), "{0}:8080".format(self.virtual_router_address), ] ) return output.strip() def get_password(self): password = self._do_request("send_my_password") if password in ["", "saved_password"]: return None if password == "bad_request": raise RuntimeError("Error when attempting to fetch root password.") self._do_request("saved_password") return password class DataSourceCloudStack(sources.DataSource): dsname = "CloudStack" # Setup read_url parameters per get_url_params. url_max_wait = 120 url_timeout = 50 def __init__(self, sys_cfg, distro, paths): sources.DataSource.__init__(self, sys_cfg, distro, paths) self.seed_dir = os.path.join(paths.seed_dir, "cs") # Cloudstack has its metadata/userdata URLs located at # http:///latest/ self.api_ver = "latest" self.vr_addr = get_vr_address() if not self.vr_addr: raise RuntimeError("No virtual router found!") self.metadata_address = "http://%s/" % (self.vr_addr,) self.cfg = {} def wait_for_metadata_service(self): url_params = self.get_url_params() if url_params.max_wait_seconds <= 0: return False urls = [ uhelp.combine_url( self.metadata_address, "latest/meta-data/instance-id" ) ] start_time = time.time() url, _response = uhelp.wait_for_url( urls=urls, max_wait=url_params.max_wait_seconds, timeout=url_params.timeout_seconds, status_cb=LOG.warning, ) if url: LOG.debug("Using metadata source: '%s'", url) else: LOG.critical( "Giving up on waiting for the metadata from %s" " after %s seconds", urls, int(time.time() - start_time), ) return bool(url) def get_config_obj(self): return self.cfg def _get_data(self): seed_ret = {} if util.read_optional_seed(seed_ret, base=(self.seed_dir + "/")): self.userdata_raw = seed_ret["user-data"] self.metadata = seed_ret["meta-data"] LOG.debug("Using seeded cloudstack data from: %s", self.seed_dir) return True try: if not self.wait_for_metadata_service(): return False start_time = time.time() self.userdata_raw = ec2.get_instance_userdata( self.api_ver, self.metadata_address ) self.metadata = ec2.get_instance_metadata( self.api_ver, self.metadata_address ) LOG.debug( "Crawl of metadata service took %s seconds", int(time.time() - start_time), ) password_client = CloudStackPasswordServerClient(self.vr_addr) try: set_password = password_client.get_password() except Exception: util.logexc( LOG, "Failed to fetch password from virtual router %s", self.vr_addr, ) else: if set_password: self.cfg = { "ssh_pwauth": True, "password": set_password, "chpasswd": { "expire": False, }, } return True except Exception: util.logexc( LOG, "Failed fetching from metadata service %s", self.metadata_address, ) return False def get_instance_id(self): return self.metadata["instance-id"] @property def availability_zone(self): return self.metadata["availability-zone"] def get_data_server(): # Returns the metadataserver from dns try: addrinfo = getaddrinfo("data-server", 80) except gaierror: LOG.debug("DNS Entry data-server not found") return None else: return addrinfo[0][4][0] # return IP def get_default_gateway(): # Returns the default gateway ip address in the dotted format. lines = util.load_file("/proc/net/route").splitlines() for line in lines: items = line.split("\t") if items[1] == "00000000": # Found the default route, get the gateway gw = inet_ntoa(pack(" 0: LOG.debug("Using %s lease directory", d) return d return None def get_latest_lease(lease_d=None): # find latest lease file if lease_d is None: lease_d = get_dhclient_d() if not lease_d: return None lease_files = os.listdir(lease_d) latest_mtime = -1 latest_file = None # lease files are named inconsistently across distros. # We assume that 'dhclient6' indicates ipv6 and ignore it. # ubuntu: # dhclient..leases, dhclient.leases, dhclient6.leases # centos6: # dhclient-.leases, dhclient6.leases # centos7: ('--' is not a typo) # dhclient--.lease, dhclient6.leases for fname in lease_files: if fname.startswith("dhclient6"): # avoid files that start with dhclient6 assuming dhcpv6. continue if not (fname.endswith(".lease") or fname.endswith(".leases")): continue abs_path = os.path.join(lease_d, fname) mtime = os.path.getmtime(abs_path) if mtime > latest_mtime: latest_mtime = mtime latest_file = abs_path return latest_file def get_vr_address(): # Get the address of the virtual router via dhcp leases # If no virtual router is detected, fallback on default gateway. # See http://docs.cloudstack.apache.org/projects/cloudstack-administration/en/4.8/virtual_machines/user-data.html # noqa # Try data-server DNS entry first latest_address = get_data_server() if latest_address: LOG.debug( "Found metadata server '%s' via data-server DNS entry", latest_address, ) return latest_address # Try networkd second... latest_address = dhcp.networkd_get_option_from_leases("SERVER_ADDRESS") if latest_address: LOG.debug( "Found SERVER_ADDRESS '%s' via networkd_leases", latest_address ) return latest_address # Try dhcp lease files next... lease_file = get_latest_lease() if not lease_file: LOG.debug("No lease file found, using default gateway") return get_default_gateway() with open(lease_file, "r") as fd: for line in fd: if "dhcp-server-identifier" in line: words = line.strip(" ;\r\n").split(" ") if len(words) > 2: dhcptok = words[2] LOG.debug("Found DHCP identifier %s", dhcptok) latest_address = dhcptok if not latest_address: # No virtual router found, fallback on default gateway LOG.debug("No DHCP found, using default gateway") return get_default_gateway() return latest_address # Used to match classes to dependencies datasources = [ (DataSourceCloudStack, (sources.DEP_FILESYSTEM, sources.DEP_NETWORK)), ] # Return a list of data sources that match this set of dependencies def get_datasource_list(depends): return sources.list_from_depends(depends, datasources) # vi: ts=4 expandtab