FM / sources

/usr/lib/python3.6/site-packages/cloudinit/sources/

/usr/lib/python3.6/site-packages/cloudinit/sources

Name	Size	Mode	Actions
azure/	-	0755	rm
helpers/	-	0755	rm
__pycache__/	-	0755	rm
DataSourceAkamai.py	12969	0644	edit dl rm
DataSourceAliYun.py	3037	0644	edit dl rm
DataSourceAltCloud.py	8423	0644	edit dl rm
DataSourceAzure.py	74697	0644	edit dl rm
DataSourceBigstep.py	1941	0644	edit dl rm
DataSourceCloudSigma.py	3956	0644	edit dl rm
DataSourceCloudStack.py	8281	0644	edit dl rm
DataSourceConfigDrive.py	11230	0644	edit dl rm
DataSourceDigitalOcean.py	4237	0644	edit dl rm
DataSourceEc2.py	36608	0644	edit dl rm
DataSourceExoscale.py	9000	0644	edit dl rm
DataSourceGCE.py	14150	0644	edit dl rm
DataSourceHetzner.py	5442	0644	edit dl rm
DataSourceIBMCloud.py	14371	0644	edit dl rm
DataSourceLXD.py	17463	0644	edit dl rm
DataSourceMAAS.py	15488	0644	edit dl rm
DataSourceNoCloud.py	13308	0644	edit dl rm
DataSourceNone.py	1370	0644	edit dl rm
DataSourceNWCS.py	4481	0644	edit dl rm
DataSourceOpenNebula.py	16143	0644	edit dl rm
DataSourceOpenStack.py	10580	0644	edit dl rm
DataSourceOracle.py	14936	0644	edit dl rm
DataSourceOVF.py	12963	0644	edit dl rm
DataSourceRbxCloud.py	8026	0644	edit dl rm
DataSourceScaleway.py	15796	0644	edit dl rm
DataSourceSmartOS.py	34785	0644	edit dl rm
DataSourceUpCloud.py	5609	0644	edit dl rm
DataSourceVMware.py	36909	0644	edit dl rm
DataSourceVultr.py	4585	0644	edit dl rm
__init__.py	44017	0644	edit dl rm

Edit: /usr/lib/python3.6/site-packages/cloudinit/sources/DataSourceExoscale.py (9000B)

# Author: Mathieu Corbin <mathieu.corbin@exoscale.com>
# Author: Christopher Glass <christopher.glass@exoscale.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

import logging

from cloudinit import atomic_helper, dmi, helpers, sources, url_helper, util
from cloudinit.sources.helpers import ec2

LOG = logging.getLogger(__name__)

METADATA_URL = "http://169.254.169.254"
API_VERSION = "1.0"
PASSWORD_SERVER_PORT = 8080

URL_TIMEOUT = 10
URL_RETRIES = 6

EXOSCALE_DMI_NAME = "Exoscale"

class DataSourceExoscale(sources.DataSource):

dsname = "Exoscale"

url_max_wait = 120

def __init__(self, sys_cfg, distro, paths):
        super(DataSourceExoscale, self).__init__(sys_cfg, distro, paths)
        LOG.debug("Initializing the Exoscale datasource")

self.metadata_url = self.ds_cfg.get("metadata_url", METADATA_URL)
        self.api_version = self.ds_cfg.get("api_version", API_VERSION)
        self.password_server_port = int(
            self.ds_cfg.get("password_server_port", PASSWORD_SERVER_PORT)
        )
        self.url_timeout = self.ds_cfg.get("timeout", URL_TIMEOUT)
        self.url_retries = self.ds_cfg.get("retries", URL_RETRIES)
        self.extra_config = {}

def activate(self, cfg, is_new_instance):
        """Adjust set_passwords module to run 'always' during each boot"""
        # We run the set password config module on every boot in order to
        # enable resetting the instance's password via the exoscale console
        # (and a subsequent instance reboot).
        # Exoscale password server only provides set_passwords user-data if
        # a user has triggered a password reset. So calling that password
        # service generally results in no additional cloud-config.
        # TODO(Create util functions for overriding merged sys_cfg module freq)
        mod = "set_passwords"
        sem_path = self.paths.get_ipath_cur("sem")
        sem_helper = helpers.FileSemaphores(sem_path)
        if sem_helper.clear("config_" + mod, None):
            LOG.debug("Overriding module set_passwords with frequency always")

def wait_for_metadata_service(self):
        """Wait for the metadata service to be reachable."""

metadata_url = "{}/{}/meta-data/instance-id".format(
            self.metadata_url, self.api_version
        )

url, _response = url_helper.wait_for_url(
            urls=[metadata_url],
            max_wait=self.url_max_wait,
            timeout=self.url_timeout,
            status_cb=LOG.critical,
        )

return bool(url)

def crawl_metadata(self):
        """
        Crawl the metadata service when available.

@returns: Dictionary of crawled metadata content.
        """
        metadata_ready = util.log_time(
            logfunc=LOG.info,
            msg="waiting for the metadata service",
            func=self.wait_for_metadata_service,
        )

if not metadata_ready:
            return {}

return read_metadata(
            self.metadata_url,
            self.api_version,
            self.password_server_port,
            self.url_timeout,
            self.url_retries,
        )

def _get_data(self):
        """Fetch the user data, the metadata and the VM password
        from the metadata service.

Please refer to the datasource documentation for details on how the
        metadata server and password server are crawled.
        """
        data = util.log_time(
            logfunc=LOG.debug,
            msg="Crawl of metadata service",
            func=self.crawl_metadata,
        )

if not data:
            return False

self.userdata_raw = data["user-data"]
        self.metadata = data["meta-data"]
        password = data.get("password")

password_config = {}
        if password:
            # Since we have a password, let's make sure we are allowed to use
            # it by allowing ssh_pwauth.
            # The password module's default behavior is to leave the
            # configuration as-is in this regard, so that means it will either
            # leave the password always disabled if no password is ever set, or
            # leave the password login enabled if we set it once.
            password_config = {
                "ssh_pwauth": True,
                "password": password,
                "chpasswd": {
                    "expire": False,
                },
            }

# builtin extra_config overrides password_config
        self.extra_config = util.mergemanydict(
            [self.extra_config, password_config]
        )

return True

def get_config_obj(self):
        return self.extra_config

@staticmethod
    def ds_detect():
        return dmi.read_dmi_data("system-product-name").startswith(
            EXOSCALE_DMI_NAME
        )

# Used to match classes to dependencies
datasources = [
    (DataSourceExoscale, (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)

def get_password(
    metadata_url=METADATA_URL,
    api_version=API_VERSION,
    password_server_port=PASSWORD_SERVER_PORT,
    url_timeout=URL_TIMEOUT,
    url_retries=URL_RETRIES,
):
    """Obtain the VM's password if set.

Once fetched the password is marked saved. Future calls to this method may
    return empty string or 'saved_password'."""
    password_url = "{}:{}/{}/".format(
        metadata_url, password_server_port, api_version
    )
    response = url_helper.read_file_or_url(
        password_url,
        ssl_details=None,
        headers={"DomU_Request": "send_my_password"},
        timeout=url_timeout,
        retries=url_retries,
    )
    password = response.contents.decode("utf-8")
    # the password is empty or already saved
    # Note: the original metadata server would answer an additional
    # 'bad_request' status, but the Exoscale implementation does not.
    if password in ["", "saved_password"]:
        return None
    # save the password
    url_helper.read_file_or_url(
        password_url,
        ssl_details=None,
        headers={"DomU_Request": "saved_password"},
        timeout=url_timeout,
        retries=url_retries,
    )
    return password

def read_metadata(
    metadata_url=METADATA_URL,
    api_version=API_VERSION,
    password_server_port=PASSWORD_SERVER_PORT,
    url_timeout=URL_TIMEOUT,
    url_retries=URL_RETRIES,
):
    """Query the metadata server and return the retrieved data."""
    crawled_metadata = {}
    crawled_metadata["_metadata_api_version"] = api_version
    try:
        crawled_metadata["user-data"] = ec2.get_instance_userdata(
            api_version, metadata_url, timeout=url_timeout, retries=url_retries
        )
        crawled_metadata["meta-data"] = ec2.get_instance_metadata(
            api_version, metadata_url, timeout=url_timeout, retries=url_retries
        )
    except Exception as e:
        util.logexc(
            LOG, "failed reading from metadata url %s (%s)", metadata_url, e
        )
        return {}

try:
        crawled_metadata["password"] = get_password(
            api_version=api_version,
            metadata_url=metadata_url,
            password_server_port=password_server_port,
            url_retries=url_retries,
            url_timeout=url_timeout,
        )
    except Exception as e:
        util.logexc(
            LOG,
            "failed to read from password server url %s:%s (%s)",
            metadata_url,
            password_server_port,
            e,
        )

return crawled_metadata

if __name__ == "__main__":
    import argparse

parser = argparse.ArgumentParser(description="Query Exoscale Metadata")
    parser.add_argument(
        "--endpoint",
        metavar="URL",
        help="The url of the metadata service.",
        default=METADATA_URL,
    )
    parser.add_argument(
        "--version",
        metavar="VERSION",
        help="The version of the metadata endpoint to query.",
        default=API_VERSION,
    )
    parser.add_argument(
        "--retries",
        metavar="NUM",
        type=int,
        help="The number of retries querying the endpoint.",
        default=URL_RETRIES,
    )
    parser.add_argument(
        "--timeout",
        metavar="NUM",
        type=int,
        help="The time in seconds to wait before timing out.",
        default=URL_TIMEOUT,
    )
    parser.add_argument(
        "--password-port",
        metavar="PORT",
        type=int,
        help="The port on which the password endpoint listens",
        default=PASSWORD_SERVER_PORT,
    )

args = parser.parse_args()

data = read_metadata(
        metadata_url=args.endpoint,
        api_version=args.version,
        password_server_port=args.password_port,
        url_timeout=args.timeout,
        url_retries=args.retries,
    )

print(atomic_helper.json_dumps(data))

cmd: