def cmd_logs(follow: bool):
from localstack import config
from localstack.utils.docker_utils import DOCKER_CLIENT
container_name = config.MAIN_CONTAINER_NAME
if not DOCKER_CLIENT.is_container_running(container_name):
console.print("localstack container not running")
sys.exit(1)
if follow:
for line in DOCKER_CLIENT.stream_container_logs(container_name):
print(line.decode("utf-8").rstrip("\r\n"))
else:
print(DOCKER_CLIENT.get_container_logs(container_name))
def wait_container_is_ready(timeout: Optional[float] = None):
"""Blocks until the localstack main container is running and the ready marker has been printed."""
container_name = config.MAIN_CONTAINER_NAME
started = time.time()
def is_container_running():
return DOCKER_CLIENT.is_container_running(container_name)
if not poll_condition(is_container_running, timeout=timeout):
return False
stream = DOCKER_CLIENT.stream_container_logs(container_name)
# create a timer that will terminate the log stream after the remaining timeout
timer = None
if timeout:
waited = time.time() - started
remaining = timeout - waited
# check the rare case that the timeout has already been reached
if remaining <= 0:
stream.close()
return False
timer = threading.Timer(remaining, stream.close)
timer.start()
try:
for line in stream:
line = line.decode("utf-8").strip()
if line == constants.READY_MARKER_OUTPUT:
return True
# EOF was reached or the stream was closed
return False
finally:
call_safe(stream.close)
if timer:
# make sure the timer is stopped (does nothing if it has already run)
timer.cancel()