[Service] Enable/disable container auto-restart based on configuration. (#4073)
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name dhcp_relay
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name lldp
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name swss
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name pmon
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-script]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name radv
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name sflow
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name snmp
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name telemetry
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=false
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name teamd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -1,17 +1,34 @@
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#!/usr/bin/env python
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import getopt
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import os
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import signal
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import sys
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import syslog
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import swsssdk
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from supervisor import childutils
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# Contents of file should be the names of critical processes (as defined in
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# supervisor.conf file), one per line
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CRITICAL_PROCESSES_FILE = '/etc/supervisor/critical_processes'
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def main():
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# This table in databse contains the features for container and each
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# feature for a row will be configured a state or number.
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CONTAINER_FEATURE_TABLE_NAME = 'CONTAINER_FEATURE'
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def main(argv):
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container_name = None
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opts, args = getopt.getopt(argv, "c:", ["container-name="])
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for opt, arg in opts:
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if opt in ("-c", "--container-name"):
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container_name = arg
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if not container_name:
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syslog.syslog(syslog.LOG_ERR, "Container name not specified. Exiting...")
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sys.exit(1)
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# Read the list of critical processes from a file
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with open(CRITICAL_PROCESSES_FILE, 'r') as f:
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critical_processes = [line.rstrip('\n') for line in f]
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@ -35,12 +52,29 @@ def main():
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processname = payload_headers['processname']
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groupname = payload_headers['groupname']
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# If a critical process exited unexpectedly, terminate supervisor
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if expected == 0 and processname in critical_processes or groupname in critical_processes:
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config_db = swsssdk.ConfigDBConnector()
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config_db.connect()
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container_features_table = config_db.get_table(CONTAINER_FEATURE_TABLE_NAME)
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if not container_features_table:
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syslog.syslog(syslog.LOG_ERR, "Unable to retrieve container features table from Config DB. Exiting...")
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sys.exit(2)
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if not container_features_table.has_key(container_name):
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syslog.syslog(syslog.LOG_ERR, "Unable to retrieve features for container '{}'. Exiting...".format(container_name))
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sys.exit(3)
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restart_feature = container_features_table[container_name].get('auto_restart')
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if not restart_feature:
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syslog.syslog(syslog.LOG_ERR, "Unable to determine auto-restart feature status for container '{}'. Exiting...".format(container_name))
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sys.exit(4)
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# If auto-restart feature is enabled and a critical process exited unexpectedly, terminate supervisor
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if restart_feature == 'enabled' and expected == 0 and (processname in critical_processes or groupname in critical_processes):
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MSG_FORMAT_STR = "Process {} exited unxepectedly. Terminating supervisor..."
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msg = MSG_FORMAT_STR.format(payload_headers['processname'])
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syslog.syslog(syslog.LOG_INFO, msg)
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os.kill(os.getppid(), signal.SIGTERM)
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if __name__ == "__main__":
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main()
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main(sys.argv[1:])
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@ -3,6 +3,12 @@ logfile_maxbytes=1MB
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logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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[program:start.sh]
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command=/usr/bin/start.sh
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priority=1
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -3,6 +3,12 @@ logfile_maxbytes=1MB
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logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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[program:start.sh]
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command=/usr/bin/start.sh
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priority=1
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@ -3,6 +3,12 @@ logfile_maxbytes=1MB
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logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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[program:start.sh]
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command=/usr/bin/start.sh
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priority=1
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name syncd
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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@ -4,7 +4,7 @@ logfile_backups=2
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nodaemon=true
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[eventlistener:supervisor-proc-exit-listener]
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command=/usr/bin/supervisor-proc-exit-listener
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command=/usr/bin/supervisor-proc-exit-listener --container-name dhcp_relay
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events=PROCESS_STATE_EXITED
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autostart=true
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autorestart=unexpected
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