def startup_service(service, configdir):
pidfile = "/var/run/" + service + ".pid"
logfile = "/var/log/anchore/" + service + ".log"
# os.environ['ANCHORE_LOGFILE'] = logfile
logger.info("cleaning up service: {}".format(str(service)))
terminate_service(service, flush_pidfile=True)
twistd_cmd = '/bin/twistd'
for f in ['/bin/twistd', '/usr/local/bin/twistd']:
if os.path.exists(f):
twistd_cmd = f
cmd = [twistd_cmd, '--logger=anchore_engine.subsys.twistd_logger.logger', '--pidfile', pidfile, "-n", service, '--config', configdir]
logger.info("starting service: {}".format(str(service)))
logger.info("\t {}".format(' '.join(cmd)))
try:
newenv = os.environ.copy()
newenv['ANCHORE_LOGFILE'] = logfile
pipes = subprocess.Popen(cmd, env=newenv)
sout, serr = pipes.communicate()
rc = pipes.returncode
raise Exception("process exited: " + str(rc))
except Exception as err:
logger.exception("service process exited at ({}): {}".format(str(time.ctime()), str(err)))
logger.fatal('Could not start service due to: {}'.format(str(err)))
logger.info("exiting service thread")
return (False)
def start(auto_upgrade, anchore_module, skip_config_validate, skip_db_compat_check, service=None):
"""
Startup and monitor service processes. Specify a list of service names or empty for all.
"""
global config
ecode = 0
auto_upgrade = True
if not anchore_module:
module_name = "anchore_engine"
else:
module_name = str(anchore_module)
if os.environ.get('ANCHORE_ENGINE_SKIP_DB_COMPAT_CHECK', str(skip_db_compat_check)).lower() in ['true', 't', 'y', 'yes']:
skip_db_compat_check = True
else:
skip_db_compat_check = False
if service:
input_services = list(service)
else:
input_services = []
try:
validate_params = {
'services': True,
'webhooks': True,
'credentials': True
}
if skip_config_validate:
try:
items = skip_config_validate.split(',')
for item in items:
validate_params[item] = False
except Exception as err:
raise Exception(err)
# find/set up configuration
configdir = config['configdir']
configfile = os.path.join(configdir, "config.yaml")
localconfig = None
if os.path.exists(configfile):
try:
localconfig = anchore_engine.configuration.localconfig.load_config(configdir=configdir, configfile=configfile, validate_params=validate_params)
except Exception as err:
raise Exception("cannot load local configuration: " + str(err))
else:
raise Exception("cannot locate configuration file ({})".format(configfile))
# load the appropriate DB module
try:
logger.info("Loading DB routines from module ({})".format(module_name))
module = importlib.import_module(module_name + ".db.entities.upgrade")
except TableNotFoundError as ex:
logger.info("Initialized DB not found.")
except Exception as err:
raise Exception("Input anchore-module (" + str(module_name) + ") cannot be found/imported - exception: " + str(err))
# get the list of local services to start
startFailed = False
if not input_services:
config_services = localconfig.get('services', {})
if not config_services:
logger.warn('could not find any services to execute in the config file')
sys.exit(1)
input_services = [ name for name, srv_conf in list(config_services.items()) if srv_conf.get('enabled')]
services = []
for service_conf_name in input_services:
if service_conf_name in list(service_map.values()):
svc = service_conf_name
else:
svc = service_map.get(service_conf_name)
if svc:
services.append(svc)
else:
logger.warn('specified service {} not found in list of available services {} - removing from list of services to start'.format(service_conf_name, list(service_map.keys())))
if 'anchore-catalog' in services:
services.remove('anchore-catalog')
services.insert(0, 'anchore-catalog')
if not services:
logger.error("No services found in ANCHORE_ENGINE_SERVICES or as enabled in config.yaml to start - exiting")
sys.exit(1)
# preflight - db checks
try:
db_params = anchore_engine.db.entities.common.get_params(localconfig)
#override db_timeout since upgrade might require longer db session timeout setting
try:
db_params['db_connect_args']['timeout'] = 86400
except Exception as err:
pass
anchore_manager.cli.utils.connect_database(config, db_params, db_retries=300)
code_versions, db_versions = anchore_manager.cli.utils.init_database(upgrade_module=module, localconfig=localconfig, do_db_compatibility_check=(not skip_db_compat_check))
in_sync = False
timed_out = False
max_timeout = 3600
timer = time.time()
while not in_sync and not timed_out:
code_versions, db_versions = module.get_versions()
if code_versions and db_versions:
if code_versions['db_version'] != db_versions['db_version']:
if auto_upgrade and 'anchore-catalog' in services:
logger.info("Auto-upgrade is set - performing upgrade.")
try:
# perform the upgrade logic here
rc = module.run_upgrade()
if rc:
logger.info("Upgrade completed")
else:
logger.info("No upgrade necessary. Completed.")
except Exception as err:
raise err
in_sync = True
else:
logger.warn("this version of anchore-engine requires the anchore DB version ({}) but we discovered anchore DB version ({}) in the running DB - it is safe to run the upgrade while seeing this message - will retry for {} more seconds.".format(str(code_versions['db_version']), str(db_versions['db_version']), str(max_timeout - int(time.time() - timer))))
time.sleep(5)
else:
logger.info("DB version and code version in sync.")
in_sync = True
else:
logger.warn('no existing anchore DB data can be discovered, assuming bootstrap')
in_sync = True
if (max_timeout - int(time.time() - timer)) < 0:
timed_out = True
if not in_sync:
raise Exception("this version of anchore-engine requires the anchore DB version ("+str(code_versions['db_version'])+") but we discovered anchore DB version ("+str(db_versions['db_version'])+") in the running DB - please perform the DB upgrade process and retry")
except Exception as err:
raise err
finally:
rc = anchore_engine.db.entities.common.do_disconnect()
# start up services
logger.info('Starting services: {}'.format(services))
try:
if not os.path.exists("/var/log/anchore"):
os.makedirs("/var/log/anchore/", 0o755)
except Exception as err:
logger.error("cannot create log directory /var/log/anchore - exception: {}".format(str(err)))
raise err
pids = []
keepalive_threads = []
for service in services:
pidfile = "/var/run/" + service + ".pid"
try:
service_thread = ServiceThread(startup_service, (service, configdir))
keepalive_threads.append(service_thread)
max_tries = 30
tries = 0
while not os.path.exists(pidfile) and tries < max_tries:
time.sleep(1)
tries = tries + 1
time.sleep(2)
except Exception as err:
startFailed = True
logger.warn("service start failed - exception: {}".format(str(err)))
if startFailed:
logger.fatal("one or more services failed to start. cleanly terminating the others")
for service in services:
terminate_service(service, flush_pidfile=True)
sys.exit(1)
else:
# start up the log watchers
try:
observer = Observer()
observer.schedule(AnchoreLogWatcher(), path="/var/log/anchore/")
observer.start()
try:
while True:
time.sleep(1)
if 'auto_restart_services' in localconfig and localconfig['auto_restart_services']:
for service_thread in keepalive_threads:
if not service_thread.thread.is_alive():
logger.info("restarting service: {}".format(service_thread.thread.name))
service_thread.start()
except KeyboardInterrupt:
observer.stop()
observer.join()
except Exception as err:
logger.error("failed to startup log watchers - exception: {}".format(str(err)))
raise err
except Exception as err:
logger.error(anchore_manager.cli.utils.format_error_output(config, 'servicestart', {}, err))
if not ecode:
ecode = 2
anchore_manager.cli.utils.doexit(ecode)
