I am playing around with docker and ran into an issue when mounting docker volumes with --mount instead of -v. It appears to me that the error popping up is not valid, but probably I am missing a small detail here.
The path to which I want bind the created image in the container is seen as not absolute in the --mount scenario.
I am running Docker on a windows 10 machine
I pulled the jenkins/jenkins:lts image and want to spin up 2 containers that use the same configuration. As said before I use this just to play around with docker, and am exploring how the volume system works.
What i did is create a docker volume that is used to share the configuarion.
docker volume create jenkins_cfg
Then I tried to run 2 containers. The first container started with:
docker run -d -p 8081:8080 --name jenkins2 -v jenkins_cfg:/var/jenkins_home jenkins/jenkins:lts
Which works fine..
The second container started with:
docker run -d -p 8085:8080 --name jenkin5 --mount source=jenkins_cfg,target=var/jenkins_home jenkins/jenkins:lts
This results in the error "C:\Program Files\Docker\Docker\Resources\bin\docker.exe: Error response from daemon: invalid mount config for type "volume": invalid mount path: 'var/jenkins_home' mount path must be absolute. See 'C:\Program Files\Docker\Docker\Resources\bin\docker.exe run --help'."
Also /var/jenkins_home is not working properly.
While the -v also asks for the same target folder , i would assume that this folder would also work in the target option of --mount. Probably, I am overlooking something here ...
