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 start_process(process, instances=1):
for instance in range(0, instances):
proc_path = os.path.join(delfin_source_path, 'delfin', 'cmd',
process + '.py')
command = 'python3 ' + proc_path + ' --config-file ' + \
conf_file + ' >' + DEVNULL + ' 2>&1 &'
logger.info("Executing command [%s]", command)
os.system(command)
logger.info("[%s] process_started", process)
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
def main():
global delfin_source_path
cwd = os.getcwd()
logger.info("Current dir is %s" % cwd)
this_file_dir = os.path.dirname(os.path.realpath(__file__))
delfin_source_path = os.path.join(this_file_dir, "../")
logger.info("delfins [%s]" % delfin_source_path)
os.chdir(delfin_source_path)
logger.info(os.getcwd())
# create required directories
create_dir(delfin_etc_dir)
create_dir(delfin_var_dir)
# Copy required files
# Copy api-paste.ini
ini_file_src = os.path.join(delfin_source_path, 'etc', 'delfin',
'api-paste.ini')
ini_file_dest = os.path.join(delfin_etc_dir, 'api-paste.ini')
copy_files(ini_file_src, ini_file_dest)
# Copy the conf file
conf_file_src = os.path.join(delfin_source_path, 'etc', 'delfin',
'delfin.conf')
copy_files(conf_file_src, conf_file)
# install
install_delfin()
# create db
create_delfin_db()
# start
start_processes()
def start_processes():
# start api process
proc_path = os.path.join(delfin_source_path, 'delfin', 'cmd', 'api.py')
command = 'python3 ' + proc_path + ' --config-file ' +\
conf_file + ' >' + DEVNULL + ' 2>&1 &'
# >/dev/null 2>&1
logger.info("Executing command [%s]", command)
os.system(command)
logger.info("API process_started")
# Start task process
proc_path = os.path.join(delfin_source_path, 'delfin', 'cmd', 'task.py')
command = 'python3 ' + proc_path + ' --config-file ' +\
conf_file + ' >' + DEVNULL + ' 2>&1 &'
logger.info("Executing command [%s]", command)
os.system(command)
logger.info("TASK process_started")
# Start alert process
proc_path = os.path.join(delfin_source_path, 'delfin', 'cmd', 'alert.py')
command = 'python3 ' + proc_path + ' --config-file ' +\
conf_file + ' >' + DEVNULL + ' 2>&1 &'
logger.info("Executing command [%s]", command)
os.system(command)
logger.info("ALERT process_started")
# 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")