def _get_ffmpeg_process_data(
container: docker.models.containers.Container) -> (str, str):
"""
returned pid, cpu usage
"""
top = []
empty_result = '', ''
if container.status != 'running':
return empty_result
try:
# [ (pid, cmd), (pid, cmd), .. ]
top = container.top(ps_args='-eo pid,comm,pcpu')
except docker.errors.APIError:
logger.error("Error while trying get container top.\n" +
traceback.format_exc())
return empty_result
if not top or 'Processes' not in top:
logger.warning(
f"Warning. Top is empty or format is wrong. container:'{container.name}', top: {top}"
)
return empty_result
try:
top = top['Processes']
for pid, cmd, pcpu in top:
if 'ffmpeg' in cmd:
return pid, pcpu
return empty_result
except ValueError:
logger.warning(
f"Warning. Format of top is wrong.container:'{container.name}', top: {top}"
)
logger.warning(traceback.format_exc())
return empty_result
def container_pid(c: docker.models.containers.Container) -> int:
"""
returns PID of `c` according in the host namespace
"""
return int(c.top()["Processes"][0][1])