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Update plugin config with interval #85

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Update plugin config with interval #85

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6ed1b4c
Update plugin config with interval
skafandri Sep 13, 2025
aee4e6b
Add subprocess import to plugins-installer.py
skafandri Sep 30, 2025
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51 changes: 42 additions & 9 deletions agent360/plugins/plugins-installer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,9 @@
import certifi
import logging
import json
import time
import threading
import subprocess
from pprint import pprint

if sys.version_info >= (3,):
Expand All @@ -30,13 +33,42 @@
class Plugin(plugins.BasePlugin):
__name__ = 'plugins-installer'

# guard flags to prevent multiple updater threads
_updater_started = False
_lock = threading.Lock()

def run(self, config):
self.config = config
updated = self._update_plugins_from_backend()
if updated:
self._restart_agent()
results = self._get_plugins(config)
return results

# ensure only one background updater thread
with Plugin._lock:
if not Plugin._updater_started:
Plugin._updater_started = True
t = threading.Thread(
target=self._periodic_updater,
name="PluginUpdaterThread",
daemon=True
)
t.start()

return self._get_plugins(config)

def _periodic_updater(self):
while True:
try:
updated = self._update_plugins_from_backend()
if updated:
logging.info("Plugins updated, restarting agent")
self._restart_agent()
except Exception as e:
logging.error("Error in periodic plugin update: %s", e)

try:
interval = self.config.getint('agent', 'plugin_update_interval')
except Exception:
interval = 1800 # default 30 minutes
time.sleep(interval)


def _restart_agent(self):
pid = os.fork()
Expand All @@ -45,7 +77,7 @@ def _restart_agent(self):
try:
subprocess.run(['systemctl', 'restart', 'agent360'], check=True)
except Exception as e:
logging.error('Failed to restart agent360: %s' % e)
logging.error('Failed to restart agent360: %s', e)
os._exit(0)

def _update_plugins_from_backend(self, proto='https'):
Expand All @@ -71,7 +103,8 @@ def _update_plugins_from_backend(self, proto='https'):
updated = True
self._set_plugin_configuration(plugin['id'], c, plugin['config'][c])
except Exception as e:
logging.error('Failed to get plugins state: %s' % e)
logging.error('Failed to get plugins state: %s', e)
return False
return updated

def _get_connection(self, proto='https'):
Expand Down Expand Up @@ -120,8 +153,8 @@ def _config_section_create(self, section):
def _get_config_section_properties(self, config, section_name):
# Exclude parent configuration
excluded_keys = ['api_host', 'api_path', 'interval', 'log_file', 'log_file_mode',
'logging_level','max_cached_collections', 'max_data_age', 'max_data_span',
'plugins', 'server', 'subprocess', 'threads', 'ttl', 'user']
'logging_level', 'max_cached_collections', 'max_data_age', 'max_data_span',
'plugins', 'server', 'subprocess', 'threads', 'ttl', 'user']
if section_name in config:
properties = {
key: config[section_name][key]
Expand Down