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# Copyright (C) 2011 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""install and configure landscape client"""
import logging
from itertools import chain
from configobj import ConfigObj
from cloudinit import subp, type_utils, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.settings import PER_INSTANCE
LSC_CLIENT_CFG_FILE = "/etc/landscape/client.conf"
LS_DEFAULT_FILE = "/etc/default/landscape-client"
# defaults taken from stock client.conf in landscape-client 11.07.1.1-0ubuntu2
LSC_BUILTIN_CFG = {
"client": {
"log_level": "info",
"url": "https://landscape.canonical.com/message-system",
"ping_url": "http://landscape.canonical.com/ping",
"data_path": "/var/lib/landscape/client",
}
}
meta: MetaSchema = {
"id": "cc_landscape",
"distros": ["ubuntu"],
"frequency": PER_INSTANCE,
"activate_by_schema_keys": ["landscape"],
} # type: ignore
LOG = logging.getLogger(__name__)
def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
"""
Basically turn a top level 'landscape' entry with a 'client' dict
and render it to ConfigObj format under '[client]' section in
/etc/landscape/client.conf
"""
ls_cloudcfg = cfg.get("landscape", {})
if not isinstance(ls_cloudcfg, (dict)):
raise RuntimeError(
"'landscape' key existed in config, but not a dictionary type,"
" is a {_type} instead".format(
_type=type_utils.obj_name(ls_cloudcfg)
)
)
if not ls_cloudcfg:
return
cloud.distro.install_packages(["landscape-client"])
# Later order config values override earlier values
merge_data = [
LSC_BUILTIN_CFG,
LSC_CLIENT_CFG_FILE,
ls_cloudcfg,
]
# Flatten dict k,v pairs to [--KEY1, VAL1, --KEY2, VAL2, ...]
cmd_params = list(
chain(
*[
[f"--{k.replace('_', '-')}", v]
for k, v in sorted(
merge_together(merge_data)["client"].items()
)
]
)
)
try:
subp.subp(["landscape-config", "--silent", "--is-registered"], rcs=[5])
subp.subp(["landscape-config", "--silent"] + cmd_params)
except subp.ProcessExecutionError as e:
if e.exit_code == 0:
LOG.warning("Client already registered to Landscape")
else:
msg = f"Failure registering client:\n{e}"
util.logexc(LOG, msg)
raise RuntimeError(msg) from e
def merge_together(objs):
"""
merge together ConfigObj objects or things that ConfigObj() will take in
later entries override earlier
"""
cfg = ConfigObj({})
for obj in objs:
if not obj:
continue
if isinstance(obj, ConfigObj):
cfg.merge(obj)
else:
cfg.merge(ConfigObj(obj))
return cfg