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File Content: `DataSourceCloudSigma.py`

# Copyright (C) 2014 CloudSigma
#
# Author: Kiril Vladimiroff <kiril.vladimiroff@cloudsigma.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

from base64 import b64decode
import re

from cloudinit.cs_utils import Cepko, SERIAL_PORT

from cloudinit import log as logging
from cloudinit import sources
from cloudinit import util

LOG = logging.getLogger(__name__)


class DataSourceCloudSigma(sources.DataSource):
    """
    Uses cepko in order to gather the server context from the VM.

    For more information about CloudSigma's Server Context:
    http://cloudsigma-docs.readthedocs.org/en/latest/server_context.html
    """

    dsname = 'CloudSigma'

    def __init__(self, sys_cfg, distro, paths):
        self.cepko = Cepko()
        self.ssh_public_key = ''
        sources.DataSource.__init__(self, sys_cfg, distro, paths)

    def is_running_in_cloudsigma(self):
        """
        Uses dmi data to detect if this instance of cloud-init is running
        in the CloudSigma's infrastructure.
        """

        LOG.debug("determining hypervisor product name via dmi data")
        sys_product_name = util.read_dmi_data("system-product-name")
        if not sys_product_name:
            LOG.debug("system-product-name not available in dmi data")
            return False
        LOG.debug("detected hypervisor as %s", sys_product_name)
        return 'cloudsigma' in sys_product_name.lower()

    def _get_data(self):
        """
        Metadata is the whole server context and /meta/cloud-config is used
        as userdata.
        """
        dsmode = None
        if not self.is_running_in_cloudsigma():
            return False

        try:
            server_context = self.cepko.all().result
            server_meta = server_context['meta']
        except Exception:
            # TODO: check for explicit "config on", and then warn
            # but since no explicit config is available now, just debug.
            LOG.debug("CloudSigma: Unable to read from serial port")
            return False

        self.dsmode = self._determine_dsmode(
            [server_meta.get('cloudinit-dsmode')])
        if dsmode == sources.DSMODE_DISABLED:
            return False

        base64_fields = server_meta.get('base64_fields', '').split(',')
        self.userdata_raw = server_meta.get('cloudinit-user-data', "")
        if 'cloudinit-user-data' in base64_fields:
            self.userdata_raw = b64decode(self.userdata_raw)
        if 'cloudinit' in server_context.get('vendor_data', {}):
            self.vendordata_raw = server_context["vendor_data"]["cloudinit"]

        self.metadata = server_context
        self.ssh_public_key = server_meta['ssh_public_key']

        return True

    def _get_subplatform(self):
        """Return the subplatform metadata source details."""
        return 'cepko (%s)' % SERIAL_PORT

    def get_hostname(self, fqdn=False, resolve_ip=False, metadata_only=False):
        """
        Cleans up and uses the server's name if the latter is set. Otherwise
        the first part from uuid is being used.
        """
        if re.match(r'^[A-Za-z0-9 -_\.]+$', self.metadata['name']):
            return self.metadata['name'][:61]
        else:
            return self.metadata['uuid'].split('-')[0]

    def get_public_ssh_keys(self):
        return [self.ssh_public_key]

    def get_instance_id(self):
        return self.metadata['uuid']


# Legacy: Must be present in case we load an old pkl object
DataSourceCloudSigmaNet = DataSourceCloudSigma

# Used to match classes to dependencies. Since this datasource uses the serial
# port network is not really required, so it's okay to load without it, too.
datasources = [
    (DataSourceCloudSigma, (sources.DEP_FILESYSTEM, )),
]


def get_datasource_list(depends):
    """
    Return a list of data sources that match this set of dependencies
    """
    return sources.list_from_depends(depends, datasources)

# vi: ts=4 expandtab

Name	Size	Permission
helpers	---	0755
DataSourceAliYun.py	1829 bytes	0644
DataSourceAliYun.pyc	2712 bytes	0644
DataSourceAliYun.pyo	2712 bytes	0644
DataSourceAltCloud.py	8380 bytes	0644
DataSourceAltCloud.pyc	8273 bytes	0644
DataSourceAltCloud.pyo	8273 bytes	0644
DataSourceAzure.py	57192 bytes	0644
DataSourceAzure.pyc	49487 bytes	0644
DataSourceAzure.pyo	49487 bytes	0644
DataSourceBigstep.py	1917 bytes	0644
DataSourceBigstep.pyc	2457 bytes	0644
DataSourceBigstep.pyo	2457 bytes	0644
DataSourceCloudSigma.py	3979 bytes	0644
DataSourceCloudSigma.pyc	4624 bytes	0644
DataSourceCloudSigma.pyo	4624 bytes	0644
DataSourceCloudStack.py	9750 bytes	0644
DataSourceCloudStack.pyc	9225 bytes	0644
DataSourceCloudStack.pyo	9225 bytes	0644
DataSourceConfigDrive.py	10612 bytes	0644
DataSourceConfigDrive.pyc	10014 bytes	0644
DataSourceConfigDrive.pyo	10014 bytes	0644
DataSourceDigitalOcean.py	3788 bytes	0644
DataSourceDigitalOcean.pyc	4189 bytes	0644
DataSourceDigitalOcean.pyo	4189 bytes	0644
DataSourceEc2.py	27773 bytes	0644
DataSourceEc2.pyc	23215 bytes	0644
DataSourceEc2.pyo	23215 bytes	0644
DataSourceExoscale.py	9122 bytes	0644
DataSourceExoscale.pyc	7669 bytes	0644
DataSourceExoscale.pyo	7669 bytes	0644
DataSourceGCE.py	11049 bytes	0644
DataSourceGCE.pyc	11170 bytes	0644
DataSourceGCE.pyo	11170 bytes	0644
DataSourceHetzner.py	3581 bytes	0644
DataSourceHetzner.pyc	3825 bytes	0644
DataSourceHetzner.pyo	3825 bytes	0644
DataSourceIBMCloud.py	14128 bytes	0644
DataSourceIBMCloud.pyc	14966 bytes	0644
DataSourceIBMCloud.pyo	14966 bytes	0644
DataSourceMAAS.py	14390 bytes	0644
DataSourceMAAS.pyc	14426 bytes	0644
DataSourceMAAS.pyo	14426 bytes	0644
DataSourceNoCloud.py	13791 bytes	0644
DataSourceNoCloud.pyc	11321 bytes	0644
DataSourceNoCloud.pyo	11321 bytes	0644
DataSourceNone.py	1464 bytes	0644
DataSourceNone.pyc	2148 bytes	0644
DataSourceNone.pyo	2148 bytes	0644
DataSourceOVF.py	23517 bytes	0644
DataSourceOVF.pyc	20140 bytes	0644
DataSourceOVF.pyo	20140 bytes	0644
DataSourceOpenNebula.py	15150 bytes	0644
DataSourceOpenNebula.pyc	15005 bytes	0644
DataSourceOpenNebula.pyo	15005 bytes	0644
DataSourceOpenStack.py	9450 bytes	0644
DataSourceOpenStack.pyc	9128 bytes	0644
DataSourceOpenStack.pyo	9128 bytes	0644
DataSourceOracle.py	14685 bytes	0644
DataSourceOracle.pyc	13975 bytes	0644
DataSourceOracle.pyo	13975 bytes	0644
DataSourceRbxCloud.py	7362 bytes	0644
DataSourceRbxCloud.pyc	8769 bytes	0644
DataSourceRbxCloud.pyo	8769 bytes	0644
DataSourceScaleway.py	9490 bytes	0644
DataSourceScaleway.pyc	10117 bytes	0644
DataSourceScaleway.pyo	10117 bytes	0644
DataSourceSmartOS.py	34217 bytes	0644
DataSourceSmartOS.pyc	31006 bytes	0644
DataSourceSmartOS.pyo	31006 bytes	0644
__init__.py	32500 bytes	0644
__init__.pyc	28232 bytes	0644
__init__.pyo	28232 bytes	0644

File Content: DataSourceCloudSigma.py

File Content: `DataSourceCloudSigma.py`