I use this image: dperson/samba
The image is defining it's own entrypoint and I do not want to override it.
I need to pass arguments to the entrypoint, easy with docker only:
docker run ... dperson/samba arg1 arg2 arg3 But how to do it with docker_compose.yml ?
Right now I use as a workaround:
command: samba.sh arg1 arg2 arg3 But it is not satisfying as I force the redefinition of the entrypoint.
The command clause does work as @Karthik says above.
As a simple example, the following service will have a -inMemory added to its ENTRYPOINT when docker-compose up is run.
version: '2' services: local-dynamo: build: local-dynamo image: spud/dynamo command: -inMemory Whatever is specified in the command in docker-compose.yml should get appended to the entrypoint defined in the Dockerfile, provided entrypoint is defined in exec form in the Dockerfile.
If the EntryPoint is defined in shell form, then any CMD arguments will be ignored.
You can use docker-compose run instead of docker-compose up and tack the arguments on the end. For example:
docker-compose run dperson/samba arg1 arg2 arg3 If you need to connect to other docker containers, use can use --service-ports option:
docker-compose run --service-ports dperson/samba arg1 arg2 arg3 I was facing same issue with jenkins ssh slave 'jenkinsci/ssh-slave', however my case was bit complicated because it was necessary to pass an argument which contained spaces. I've managed to do it like below (entrypoint in dockerfile is in exec form):
command: ["some argument with space which should be treated as one"] Hope this helps. Thanks.