Python script to run docker containers

Question

I want to write a python script that run docker containers and then show logs for that particular container, I have use some functions that are working and starting or stoping containers for me. Can somebody help me to show logs for the containers ?? I tried to use container.logs() function, but it is not working for me, i am also trying to study docker-py library ! I don't know much about python, any help will be highly appreciated !

#!/usr/bin/python
import docker
c = docker.Client(base_url='unix://var/run/docker.sock',version='1.12',timeout=10)
ctr = c.create_container('ubuntu:16.04') 
c.start(ctr)

which version of docker are you using? You are using old python client it seems — Tarun Lalwani
– Tarun Lalwani, Commented Sep 11, 2017 at 7:38

Tarun Lalwani · Accepted Answer · 2017-09-11 09:03:17Z

4

You are using a old docker client. Run below to fix that

pip uninstall docker-py
pip install docker

Once done you can use something like below

import docker

c = docker.DockerClient(base_url='unix://var/run/docker.sock',timeout=10)
ctr = c.containers.run('ubuntu:16.04',command="bash -c ' for((i=1;i<=10;i+=2)); do echo Welcome $i times; sleep 10; done'", detach=True) 
logs = ctr.logs(stream=True)

for line in logs:
    print(line)

answered Sep 11, 2017 at 9:03

Tarun Lalwani

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5 Comments

Saad Over a year ago

Not running properly, will you please help a little ! ======>> Traceback (most recent call last): File "pydoc.py", line 3, in <module> c = docker.DockerClient(base_url='unix://var/run/docker.sock',timeout=10) AttributeError: 'module' object has no attribute 'DockerClient' <============

Tarun Lalwani Over a year ago

That means you still are on old client

Saad Over a year ago

Tarun, i have upgraded all the packages ... using this but still getting this error ! i have upgrade it using, pip install --upgrade docker-py pip install --upgrade docker

Saad Over a year ago

yes obviously i have first uninstalled it then i have again installed it ! But still it is not working fine !

Tarun Lalwani Over a year ago

Please test it in a fresh new virtual environment, the code has been tested on my end and then only shared. The code has nothing wrong. Please us virtualenvwrapper.readthedocs.io/en/latest

Saad · Accepted Answer · 2017-09-11 13:20:13Z

1

@Tarun , i come through it and it solved my problem , its easy ! by the way thanks for your help man !

import docker
import dockerpty

client = docker.Client()
container = client.create_container(
image='busybox:latest',
   stdin_open=True,
   tty=True,
   command='/bin/sh',
)
client.start(container)
dockerpty.PseudoTerminal(client, container).start()

answered Sep 11, 2017 at 13:20

Saad

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