I am running Jenkins in my home lab in docker container. I wanted to also have different agents for the different types of projects I was building, like building some of my Arduino projects for the different boards I have, or nodejs packages, etc.
I have the Jenkins Cloud Plugin and docker-plugin installed. I was having some issues configuring it to connect to the docker api, and the plugin documentation is out dated.
Since this is my lab, I just set up for TCP communication vs the
docker.sock. The documentation says to edit the
/etc/init/docker.conf. Except on Ubuntu 16.04 that is not used.
Instead, you have to edit
/lib/systemd/system/docker.service and add
-H 0.0.0.0:32376 to
systemctl restart docker
Now docker engine will restart and it will be listening on port 32376. If you do
curl –XGET http://localhost:32376 you should get a response.
You can now configure jenkins to use
tcp://<docker-host>:32376 and hit test connection.
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