Docker container logs

docker_logs.py

# Docker container logs
import datetime
import docker
import time
import os

# how to run it
# python3 docker_logs.py

# TODO update the name for the correct one on the drone
NAME_CONTAINER = "portainer"  
client = docker.from_env()
client.containers.list()
cmd_get_id = "docker ps -aqf 'name={}'".format(NAME_CONTAINER)
out = os.popen(cmd_get_id).read()

while len(out)==0:
    print("[{}] waiting for container to start ...".format(time.time()))
    out = os.popen(cmd_get_id).read()
    time.sleep(1)

ID_CONTAINER = out[:-3]
container = client.containers.get(ID_CONTAINER)

"""
container.logs()
print(container.logs())
print(ID_CONTAINER)
"""

decoded_line = 'LOGS START ... '
for line in container.logs(stream=True):
    if len(line)>1:
        decoded_line = line.decode()
        print(decoded_line)
    else:
        if line.decode() == "\n":
            print(decoded_line)
            decoded_line = ''            
        else:
            decoded_line += line.decode()