Info about docker containers

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1

Hello,

I have docker containers running on multiple hosts and I need to find a way of synchronizing a list of logs from each of these containers to the ansible server but I can’t find a way to do it.

Can someone point me to documentation, give me a hint how I should approach this or to an ansible module (I have found some modules to create containers but not to run commands on them or to extract container ids) ?

Until now I’ve tried using ansible ad-hoc commands but I’m not being able to create a correct playbook to do this for me.
What I was thinking is to store container ID (obtained using some bash commands) into a variable and with that variable to run docker cp $containerID:/var/log/test .

Thanks,
Ionut

2

It’s not necessarily practical in your situation, but have you considered mounting the drives via nfs?

3

Hi,

I think you’re looking after this documentation: http://docs.ansible.com/ansible/intro_inventory.html#non-ssh-connection-types

You can use ansible_docker_extra_args and provide the docker host associated with your containers (with something like -H=docker-engine1:port).

Then, you can use fetch to retrieve your logs localy in a playbook.

Hope it helps :slight_smile:

Yannig