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# Author: Eric Benner <ebenner@vultr.com> # # This file is part of cloud-init. See LICENSE file for license information. # Vultr Metadata API: # https://www.vultr.com/metadata/ from typing import Tuple import cloudinit.sources.helpers.vultr as vultr from cloudinit import log as log from cloudinit import sources, util, version LOG = log.getLogger(__name__) BUILTIN_DS_CONFIG = { "url": "http://169.254.169.254", "retries": 30, "timeout": 10, "wait": 5, "user-agent": "Cloud-Init/%s - OS: %s Variant: %s" % ( version.version_string(), util.system_info()["system"], util.system_info()["variant"], ), } class DataSourceVultr(sources.DataSource): dsname = "Vultr" sensitive_metadata_keys: Tuple[ str, ... ] = sources.DataSource.sensitive_metadata_keys + ("startup-script",) def __init__(self, sys_cfg, distro, paths): super(DataSourceVultr, self).__init__(sys_cfg, distro, paths) self.ds_cfg = util.mergemanydict( [ util.get_cfg_by_path(sys_cfg, ["datasource", "Vultr"], {}), BUILTIN_DS_CONFIG, ] ) # Initiate data and check if Vultr def _get_data(self): LOG.debug("Detecting if machine is a Vultr instance") if not vultr.is_vultr(): LOG.debug("Machine is not a Vultr instance") return False LOG.debug("Machine is a Vultr instance") # Fetch metadata self.metadata = self.get_metadata() self.userdata_raw = self.metadata["user-data"] # Generate config and process data self.get_datasource_data(self.metadata) # Dump some data so diagnosing failures is manageable LOG.debug("SUBID: %s", self.metadata["instance-id"]) LOG.debug("Hostname: %s", self.metadata["local-hostname"]) return True # Process metadata def get_datasource_data(self, md): # Generate network config if "cloud_interfaces" in md: # In the future we will just drop pre-configured # network configs into the array. They need names though. vultr.add_interface_names(md["cloud_interfaces"]) self.netcfg = md["cloud_interfaces"] else: self.netcfg = vultr.generate_network_config(md["interfaces"]) # Grab vendordata self.vendordata_raw = md["vendor-data"] # Default hostname is "guest" for whitelabel if self.metadata["local-hostname"] == "": self.metadata["local-hostname"] = "guest" self.userdata_raw = md["user-data"] if self.userdata_raw == "": self.userdata_raw = None # Get the metadata by flag def get_metadata(self): return vultr.get_metadata( self.ds_cfg["url"], self.ds_cfg["timeout"], self.ds_cfg["retries"], self.ds_cfg["wait"], self.ds_cfg["user-agent"], tmp_dir=self.distro.get_tmp_exec_path(), ) # Compare subid as instance id def check_instance_id(self, sys_cfg): if not vultr.is_vultr(): return False # Baremetal has no way to implement this in local if vultr.is_baremetal(): return False subid = vultr.get_sysinfo()["subid"] return sources.instance_id_matches_system_uuid(subid) # Currently unsupported @property def launch_index(self): return None @property def network_config(self): return self.netcfg # Used to match classes to dependencies datasources = [ (DataSourceVultr, (sources.DEP_FILESYSTEM,)), ] # Return a list of data sources that match this set of dependencies def get_datasource_list(depends): return sources.list_from_depends(depends, datasources) if __name__ == "__main__": import sys if not vultr.is_vultr(): print("Machine is not a Vultr instance") sys.exit(1) md = vultr.get_metadata( BUILTIN_DS_CONFIG["url"], BUILTIN_DS_CONFIG["timeout"], BUILTIN_DS_CONFIG["retries"], BUILTIN_DS_CONFIG["wait"], BUILTIN_DS_CONFIG["user-agent"], ) config = md["vendor-data"] sysinfo = vultr.get_sysinfo() # vi: ts=4 expandtab
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