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# vi: ts=4 expandtab
#
# Author: Neal Shrader <neal@digitalocean.com>
# Author: Ben Howard <bh@digitalocean.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# DigitalOcean Droplet API:
# https://developers.digitalocean.com/documentation/metadata/
import json
from cloudinit import log as logging
from cloudinit import sources
from cloudinit import url_helper
from cloudinit import util
LOG = logging.getLogger(__name__)
BUILTIN_DS_CONFIG = {
'metadata_url': 'http://169.254.169.254/metadata/v1.json',
}
# Wait for a up to a minute, retrying the meta-data server
# every 2 seconds.
MD_RETRIES = 30
MD_TIMEOUT = 2
MD_WAIT_RETRY = 2
class DataSourceDigitalOcean(sources.DataSource):
def __init__(self, sys_cfg, distro, paths):
sources.DataSource.__init__(self, sys_cfg, distro, paths)
self.metadata = dict()
self.ds_cfg = util.mergemanydict([
util.get_cfg_by_path(sys_cfg, ["datasource", "DigitalOcean"], {}),
BUILTIN_DS_CONFIG])
self.metadata_address = self.ds_cfg['metadata_url']
self.retries = self.ds_cfg.get('retries', MD_RETRIES)
self.timeout = self.ds_cfg.get('timeout', MD_TIMEOUT)
self.wait_retry = self.ds_cfg.get('wait_retry', MD_WAIT_RETRY)
def _get_sysinfo(self):
# DigitalOcean embeds vendor ID and instance/droplet_id in the
# SMBIOS information
LOG.debug("checking if instance is a DigitalOcean droplet")
# Detect if we are on DigitalOcean and return the Droplet's ID
vendor_name = util.read_dmi_data("system-manufacturer")
if vendor_name != "DigitalOcean":
return (False, None)
LOG.info("running on DigitalOcean")
droplet_id = util.read_dmi_data("system-serial-number")
if droplet_id:
LOG.debug(("system identified via SMBIOS as DigitalOcean Droplet"
"{}").format(droplet_id))
else:
LOG.critical(("system identified via SMBIOS as a DigitalOcean "
"Droplet, but did not provide an ID. Please file a "
"support ticket at: "
"https://cloud.digitalocean.com/support/tickets/"
"new"))
return (True, droplet_id)
def get_data(self, apply_filter=False):
(is_do, droplet_id) = self._get_sysinfo()
# only proceed if we know we are on DigitalOcean
if not is_do:
return False
LOG.debug("reading metadata from {}".format(self.metadata_address))
response = url_helper.readurl(self.metadata_address,
timeout=self.timeout,
sec_between=self.wait_retry,
retries=self.retries)
contents = util.decode_binary(response.contents)
decoded = json.loads(contents)
self.metadata = decoded
self.metadata['instance-id'] = decoded.get('droplet_id', droplet_id)
self.metadata['local-hostname'] = decoded.get('hostname', droplet_id)
self.vendordata_raw = decoded.get("vendor_data", None)
self.userdata_raw = decoded.get("user_data", None)
return True
def get_public_ssh_keys(self):
public_keys = self.metadata.get('public_keys', [])
if isinstance(public_keys, list):
return public_keys
else:
return [public_keys]
@property
def availability_zone(self):
return self.metadata.get('region', 'default')
@property
def launch_index(self):
return None
def check_instance_id(self, sys_cfg):
return sources.instance_id_matches_system_uuid(
self.get_instance_id(), 'system-serial-number')
# Used to match classes to dependencies
datasources = [
(DataSourceDigitalOcean, (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)
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