def start_processes():
processes = ['api', 'task', 'alert']
# Start cmd processes
for process in processes:
env_var = 'DELFIN_' + process.upper() + '_INSTANCES'
try:
instances = os.environ.get(env_var)
# Ignore multiple instance of api
if not instances or process == 'api':
instances = '1'
start_process(process, int(instances))
except CalledProcessError as cpe:
logger.error("Got CPE error [%s]:[%s]" % (cpe, tb.print_exc()))
return
except ValueError as e:
logger.error(
"Got invalid [%s] environment variable:[%s]" % (env_var, e))
return
# Start exporter server process
proc_path = os.path.join(delfin_source_path, 'delfin', 'exporter',
'prometheus', 'exporter_server.py')
command = 'python3 ' + proc_path + ' --config-file ' + \
conf_file + ' >' + DEVNULL + ' 2>&1 &'
logger.info("Executing command [%s]", command)
os.system(command)
logger.info("Exporter process_started")
def create_delfin_db():
try:
db_path = os.path.join(delfin_source_path, 'script', 'create_db.py')
subprocess.check_call(['python3', db_path, '--config-file', conf_file])
except CalledProcessError as cpe:
logger.error("Got CPE error [%s]:[%s]" % (cpe, tb.print_exc()))
return
logger.info('db created ')
def install_delfin():
python_setup_comm = ['build', 'install']
req_logs = os.path.join(delfin_log_dir, 'requirements.log')
command = 'pip3 install -r requirements.txt >' + req_logs + ' 2>&1'
logger.info("Executing [%s]", command)
os.system(command)
setup_file = os.path.join(delfin_source_path, 'setup.py')
for command in python_setup_comm:
try:
command = 'python3 ' + setup_file + ' ' +\
command + ' >>' + logfile
logger.info("Executing [%s]", command)
os.system(command)
except CalledProcessError as cpe:
logger.error("Got CPE error [%s]:[%s]" % (cpe, tb.print_exc()))
return