Get the IP of a running Docker container, by partial name search

getDockerIp

#!/usr/bin/python3

# If you have the exact name of the container, just run:
# docker inspect --format {{.NetworkSettings.IPAddress}} <container_name>

import subprocess, json, argparse, sys

parser = argparse.ArgumentParser()
parser.add_argument('-n', '--name', required=True, help='Name of the container you want the IP of')

params = parser.parse_args()

ps = subprocess.Popen(('docker', 'ps'), stdout=subprocess.PIPE)
try:
    grp = subprocess.check_output(['grep', params.name], stdin=ps.stdout)
except subprocess.CalledProcessError:
    print("Container %s not found." % params.name)
    sys.exit(1)
contId = grp[:12].decode('utf-8')

j = subprocess.check_output(["docker", "inspect", contId])

insp = json.loads(j.decode('utf-8'))

ip = insp[0].get("NetworkSettings").get("IPAddress")

print("Container %s has ID %s and it's IP is: %s" % (params.name, contId, ip))