def clean_old_host():
""" Method call by cron to clean instances """
logging.info("########## Start Cleaning ###########")
metrics = {
'hosts_ok': {
'description':
'count of hosts which have a report in the defined delay',
'value': 0
},
'hosts_deleted': {
'description':
'count of hosts successfully deleted from foreman puppet and ds',
'value': 0
},
'hosts_skipped': {
'description':
'count of hosts skipped because they are still in EC2',
'value': 0
},
'hosts_delete_failed': {
'description':
'count hosts unsuccessfully deleted from foreman puppet and ds',
'value': 0
},
}
# connect to Foreman and ForemanProxy
f = Foreman(FOREMAN_URL, (FOREMAN_USER, FOREMAN_PASSWORD), api_version=2)
fp = ForemanProxy(FOREMAN_PROXY_URL)
# Connect to the DS
try:
ds = AwsDs(LDAP_HOST, COMPUTERS_BASE_DN, BIND_USER_DN, BIND_PASSWORD)
except ldap.INVALID_CREDENTIALS:
raise "Your username or password is incorrect."
# Get the the current date
currentdate = datetime.datetime.utcnow()
# check for all host
instance_id_dict = foreman_wrapper(
f.do_get,
call_args={
'url': '/api/fact_values?&search=+name+%3D+ec2_instance_id',
'kwargs': {
'per_page': 1000
}
})
result = foreman_wrapper(f.index_hosts, call_args={"per_page": 1000})
for host in result:
# get the compile date
lastcompile = None
if host["last_compile"]:
lastcompile = host["last_compile"]
elif host["last_report"]:
lastcompile = host["last_report"]
elif host["created_at"]:
lastcompile = host["created_at"]
# Convert the string date to datetime format
if not host["last_compile"] and not host["last_report"] and host[
"created_at"]:
logging.info(
"Can't retrieve last compile/report date for {}, will use create time ({})"
.format(host["certname"], host["created_at"]))
hostdate = datetime.datetime.strptime(lastcompile,
'%Y-%m-%dT%H:%M:%S.%fZ')
# Get the delta between the last puppet repport and the current date
elapsed = currentdate - hostdate
# if the deta is more than $delay days we delete the host
if elapsed > datetime.timedelta(hours=int(DELAY)):
# Make the following 2 call only at the end in order to avoid useless consuming API call
try:
instance_id = instance_id_dict[host['name']]['ec2_instance_id']
is_terminated = (
get_ec2_instance_state(instance_id) == 'terminated')
except KeyError:
if host['ip']:
is_terminated = (get_ec2_instance_state(
'', ip=host['ip']) == 'terminated')
elif host['mac']:
is_terminated = (get_ec2_instance_state(
'', ip=host['ip'], mac=host['mac']) == 'terminated')
else:
logging.warning(
"Can't retrieve EC2 id or ip, skipping {}".format(
host["certname"]))
metrics["hosts_skipped"]["value"] += 1
continue
except Exception as e:
logging.warning(
"Can't retrieve EC2 state, skipping {} : {}".format(
host["certname"], e))
metrics["hosts_skipped"]["value"] += 1
continue
if is_terminated:
try:
logging.info(
"I will destroy the server {} because the last report was {}"
.format(host["certname"], str(lastcompile)))
# destroy the host in foreman
f.destroy_hosts(id=host["id"])
# remove the certificate in puppet
fp.delete_certificate(host["certname"])
# remove host in the DS
ds.delete_computer(host["certname"])
metrics["hosts_deleted"]["value"] += 1
except Exception as e:
logging.error("Something went wrong : {}".format(e))
metrics["hosts_delete_failed"]["value"] += 1
else:
metrics["hosts_skipped"]["value"] += 1
else:
metrics["hosts_ok"]["value"] += 1
logging.debug("{} OK: Last puppet's run : {}".format(
host["certname"], lastcompile))
logging.info("Push metrics to prometheus")
push_metrics(metrics)
class ForemanClient(Client):
per_page = 100
def __init__(self, config_path, debug=False, version='1', log=None):
super(ForemanClient, self).__init__(config_path, debug, log)
self.logger.debug('=> config file: %s' % config_path)
foreman_url = self.get_config('foreman', 'url')
self.logger.debug('=> foreman url: %s' % foreman_url)
foreman_user = self.get_config('foreman', 'user')
foreman_password = self.get_config('foreman', 'password')
self.foreman = Foreman(foreman_url,
(foreman_user, foreman_password),
api_version=2,
version=version,
verify=False)
def set_per_page(self, per_page):
self.per_page = per_page
def get_config(self, section, option):
try:
value = self.config.get(section, option)
return value
except ConfigParser.NoOptionError:
self.logger.debug('=> config file section [%s] missing option %s'
% (section, option))
except ConfigParser.NoSectionError:
self.logger.debug('=> config file missing section %s' % section)
return None
def get_config_section(self, section):
try:
openstack = self.config.items(section)
except ConfigParser.NoSectionError:
self.logger.debug('missing [%s]' % section)
self.logger.debug('Could not find section [%s] in %s', section, self.config_path)
sys.exit(1)
return dict(openstack)
def get_logger(self):
return self.logger
def get_client(self):
return self.foreman
def get_compute_resources(self):
resources = self.foreman.index_computeresources()
found_resources = dict({})
for r in resources['results']:
found_resources[r['name']] = r['id']
return found_resources
def get_compute_profiles(self):
profiles = self.foreman.index_computeprofiles()
found_profiles = dict({})
for p in profiles['results']:
found_profiles[p['name']] = p['id']
return found_profiles
def get_profile_id(self, profile_name):
profile = self.foreman.show_computeprofiles(profile_name)
return profile['id']
def get_host(self, host):
host = self.__set_host(host)
return self.foreman.show_hosts(id=host)
def get_fact(self, host, fact):
host = self.__set_host(host)
facts = self.get_facts(host)
fact = facts['results'][host][fact]
return fact
def get_facts(self, host_id):
host = self.__set_host(host_id)
return self.foreman.hosts.fact_values_index(host_id=host, per_page=self.per_page)
def set_host_build(self, host, build=True):
host = self.__set_host(host)
if len(self.foreman.show_hosts(id=host)) > 0:
self.foreman.update_hosts(id=host, host={'build': build})
def get_hosts(self, search=None):
hosts = self.foreman.index_hosts(per_page=self.per_page)
self.logger.debug("=> fetch %s page(s) with a total of %s hosts" %
(hosts['page'], hosts['total']))
return hosts
def create_host(self, host):
if 'name' not in host:
self.logger.debug('host dict missing name')
return
self.logger.debug('=> create new host %s' % host['name'])
result = self.foreman.create_host(host)
self.logger.debug('=> host created: %s' % result)
def create_node(self, name, node_data, region):
if self.get_host(name):
self.logger.debug('=> node %s found, dropping create' % name)
return
found_resources = self.get_compute_resources()
host = dict()
host['name'] = name
host['build'] = self.__get_node_data('build', node_data, '1')
host['hostgroup_id'] = self.__get_node_data('hostgroup', node_data, '1')
host['compute_profile_id'] = self.get_profile_id(
self.__get_node_data('compute_profile',
node_data,
'small'))
host['interfaces_attributes'] = self.__get_node_data(
'interfaces_attributes', node_data, {})
host['compute_attributes'] = self.__get_node_data(
'compute_attributes', node_data, {})
host['host_parameters_attributes'] = self.__get_node_data(
'host_parameters_attributes', node_data, {})
if 'mac' in node_data:
host['mac'] = node_data['mac']
if 'compute_resource' in node_data:
compute_resource = '%s-%s' % (region, node_data['compute_resource'])
if compute_resource in found_resources:
host['compute_resource_id'] = found_resources[compute_resource]
else:
self.logger.debug('=> compute resource %s not found' % compute_resource)
return
elif 'mac' not in node_data:
self.logger.debug('=> mac or compute resource are mandatory for %s' % name)
return
if not self.dry_run:
result = self.foreman.create_hosts(host)
if not result:
self.log_error('Could not create host. Check production.log on foreman host!')
return
if 'mac' not in node_data:
self.foreman.hosts.power(id=result['name'], power_action='start')
self.logger.debug('=> create host %s' % result)
else:
self.logger.debug('=> dry run: host config %s' % host)
def delete_node(self, host):
host = self.__set_host(host)
if not self.dry_run:
result = self.foreman.destroy_hosts(host)
if not result:
self.log_error('Could not delete host.')
return
self.logger.debug('=> deleted node %s' % host)
else:
self.logger.debug('=> dry run: deleted node %s' % host)
def __set_host(self, host):
if not host:
self.host = None
return
domain = self.config.get('openstack', 'domain')
if domain and not '.' in host:
self.logger.debug("=> prepend %s to %s" % (domain, host))
host = host + '.' + domain
return host
@staticmethod
def log_error(msg, code=0):
sys.stderr.write("%s\n" % msg)
if code > 0:
sys.exit(code)
@staticmethod
def __get_node_data(var, node_data, default=None):
if var in node_data:
return node_data[var]
else:
return default
class ForemanClient(Client):
per_page = 100
def __init__(self, config_path, debug=False, version='1', log=None):
super(ForemanClient, self).__init__(config_path, debug, log)
self.logger.debug('=> config file: %s' % config_path)
foreman_url = self.get_config('foreman', 'url')
self.logger.debug('=> foreman url: %s' % foreman_url)
foreman_user = self.get_config('foreman', 'user')
foreman_password = self.get_config('foreman', 'password')
self.foreman = Foreman(foreman_url, (foreman_user, foreman_password),
api_version=2,
version=version,
verify=False)
def set_per_page(self, per_page):
self.per_page = per_page
def get_config(self, section, option):
try:
value = self.config.get(section, option)
return value
except ConfigParser.NoOptionError:
self.logger.debug('=> config file section [%s] missing option %s' %
(section, option))
except ConfigParser.NoSectionError:
self.logger.debug('=> config file missing section %s' % section)
return None
def get_config_section(self, section):
try:
openstack = self.config.items(section)
except ConfigParser.NoSectionError:
self.logger.debug('missing [%s]' % section)
self.logger.debug('Could not find section [%s] in %s', section,
self.config_path)
sys.exit(1)
return dict(openstack)
def get_location(self):
locations = self.foreman.index_locations()
location_id = False
for l in locations['results']:
if l['name'] == 'Default Location':
location_id = l['id']
return location_id
def get_organization(self):
organizations = self.foreman.index_organizations()
organization_id = False
for o in organizations['results']:
if o['name'] == 'Default Organization':
organization_id = o['id']
return organization_id
def get_logger(self):
return self.logger
def get_client(self):
return self.foreman
def get_compute_resources(self):
resources = self.foreman.index_computeresources()
found_resources = dict({})
for r in resources['results']:
found_resources[r['name']] = r['id']
return found_resources
def get_compute_profiles(self):
profiles = self.foreman.index_computeprofiles()
found_profiles = dict({})
for p in profiles['results']:
found_profiles[p['name']] = p['id']
return found_profiles
def get_profile_id(self, profile_name):
profile = self.foreman.show_computeprofiles(profile_name)
return profile['id']
def get_host(self, host):
host = self.__set_host(host)
return self.foreman.show_hosts(id=host)
def get_fact(self, host, fact):
host = self.__set_host(host)
facts = self.get_facts(host)
fact = facts['results'][host][fact]
return fact
def get_facts(self, host_id):
host = self.__set_host(host_id)
return self.foreman.hosts.fact_values_index(host_id=host,
per_page=self.per_page)
def set_host_build(self, host, build=True):
host = self.__set_host(host)
if len(self.foreman.show_hosts(id=host)) > 0:
self.foreman.update_hosts(id=host, host={'build': build})
def get_hosts(self, search=None):
hosts = self.foreman.index_hosts(per_page=self.per_page)
self.logger.debug("=> fetch %s page(s) with a total of %s hosts" %
(hosts['page'], hosts['total']))
return hosts
def create_host(self, host):
if 'name' not in host:
self.logger.debug('host dict missing name')
return
self.logger.debug('=> create new host %s' % host['name'])
result = self.foreman.create_host(host)
self.logger.debug('=> host created: %s' % result)
def create_node(self, name, node_data, region):
if self.get_host(name):
self.logger.debug('=> node %s found, dropping create' % name)
return
found_resources = self.get_compute_resources()
host = dict()
host['name'] = name
host['build'] = self.__get_node_data('build', node_data, '1')
host['hostgroup_id'] = self.__get_node_data('hostgroup', node_data,
'1')
host['compute_profile_id'] = self.get_profile_id(
self.__get_node_data('compute_profile', node_data, 'small'))
host['organization_id'] = self.get_organization()
host['location_id'] = self.get_location()
host['interfaces_attributes'] = self.__get_node_data(
'interfaces_attributes', node_data, {})
host['compute_attributes'] = self.__get_node_data(
'compute_attributes', node_data, {})
host['host_parameters_attributes'] = self.__get_node_data(
'host_parameters_attributes', node_data, {})
if 'mac' in node_data:
host['mac'] = node_data['mac']
if 'compute_resource' in node_data:
compute_resource = '%s-%s' % (region,
node_data['compute_resource'])
if compute_resource in found_resources:
host['compute_resource_id'] = found_resources[compute_resource]
else:
self.logger.debug('=> compute resource %s not found' %
compute_resource)
return
elif 'mac' not in node_data:
self.logger.debug(
'=> mac or compute resource are mandatory for %s' % name)
return
if not self.dry_run:
result = self.foreman.create_hosts(host)
if not result:
self.log_error(
'Could not create host. Check production.log on foreman host!'
)
return
if 'mac' not in node_data:
self.foreman.hosts.power(id=result['name'],
power_action='start')
self.logger.debug('=> create host %s' % result)
else:
self.logger.debug('=> dry run: host config %s' % host)
def delete_node(self, host):
host = self.__set_host(host)
if not self.dry_run:
result = self.foreman.destroy_hosts(host)
if not result:
self.log_error('Could not delete host.')
return
self.logger.debug('=> deleted node %s' % host)
else:
self.logger.debug('=> dry run: deleted node %s' % host)
def __set_host(self, host):
if not host:
self.host = None
return
domain = self.config.get('openstack', 'domain')
if domain and not '.' in host:
self.logger.debug("=> prepend %s to %s" % (domain, host))
host = host + '.' + domain
return host
@staticmethod
def log_error(msg, code=0):
sys.stderr.write("%s\n" % msg)
if code > 0:
sys.exit(code)
@staticmethod
def __get_node_data(var, node_data, default=None):
if var in node_data:
return node_data[var]
else:
return default
