The reason it works like this is the bind mount is done from host, so need
a valid fully qualified host path, but the `pwd` command is ran inside
jenkins container, so resolves to container filesystem.
A possible alternate approach is for you to rely on " --volumes-from
$(hostname) ", as a container hostname defaults to it's ID. As a result,
your second container will share /var/jenkins_home with jenkins master.
Then you can run some commands using $workspace as a valid path in both
containers :
docker run --rm --volumes-from $(hostname) graviteeio/python3 python
${WORKSPACE}/package_bundles.py
2016-05-18 10:34 GMT+02:00 Nicolas Geraud <nicolas.ger...@gmail.com>:
> Thanks for the quick answer, I'll test this tonight.
>
> Do you have any blog post (or perhaps i've missed a "Quoi de neuf Docker"
> episode) which explain why it works like this ?
>
> Le mercredi 18 mai 2016 10:28:05 UTC+2, nicolas de loof a écrit :
>>
>> For this to work, you'll need the host path to be the exact same as the
>> jenkins container path, i.e. not use /opt/jenkins but /var/jenkins_home
>> on host
>> so `pwd` will resolve to some /var/jenkins_home/... subfolder that make
>> sense to be mounted from host into your side container
>>
>> 2016-05-18 10:14 GMT+02:00 Nicolas Geraud <nicolas...@gmail.com>:
>>
>>> Hi all,
>>>
>>> i'm using a dockerized jenkins (from jenkinsci/jenkins:2.2) and mounting
>>> the following volumes from my host :
>>> volumes:
>>> - "/opt/jenkins:/var/jenkins_home"
>>> - "/var/run/docker.sock:/var/run/docker.sock"
>>>
>>>
>>> I've created a job that launch a docker container to build some python
>>> files :
>>> --Dockerfile
>>>
>>> FROM python:3-onbuild
>>> CMD [ "python" ]
>>>
>>>
>>> docker command of my jenkins job :
>>> $docker run --rm -v `pwd`:"/usr/src/myapp" graviteeio/python3 python
>>> src/main/python/package_bundles.py
>>>
>>> But the result is :
>>>
>>>
>>> Starting docker_package_bundle_and_publish_1
>>> Attaching to docker_package_bundle_and_publish_1
>>> [36mpackage_bundle_and_publish_1 | [0m python: can't open file './src/
>>> main/python/package_bundles.py': [Errno 2] No such file or directory
>>> [36mdocker_package_bundle_and_publish_1 exited with code 2
>>> [0mFinished: SUCCESS
>>>
>>>
>>> This is working fine on a classic jenkins, but not on a dockerized jenkins.
>>> I've googled this error and it seems that mounting a volume inside a
>>> container with an already mounting volume doesn't work.
>>>
>>> I think that some of you have already test the same use case so, how to do
>>> that ?
>>>
>>> Thanks for any clue.
>>> I need to test a data volume instead of mounting a host volume.
>>>
>>>
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