Hi All, I have submitted a new blueprint which addresses the a common pattern in the docker world. A usual pattern in the docker world is to use environment variables to configure a container.
docker run -e "SQL_URL=postgres://user:password@/db" my-app The nova docker driver doesn't support to set any environment variables. To work around this issue I used cloud-init which works fine. But this approach has of course the drawback that a) I have to install the cloud init service. and b) my docker container doesn't work outside of openstack. I propose to allow a user to set docker environment variables via nova instance metadata. The metadata key should have a prefix like ENV_ which can be used to determine all environment variables. The prefix should be removed and the remainder key and vaule will be injected. The metadata can unfortunately not be set in horizon but can be used from the nova command line tool and from heat. Example heat: myapp: Type: OS::Nova::Server Properties: flavor: m1.small image: my-app:latest meta-data: - ENV_SQL_URL: postgres://user:password@/db - ENV_SOMETHING_ELSE: Value Let me know what you think about that. Blueprint: https://blueprints.launchpad.net/nova/+spec/docker-env-via-meta-data regards, Daniel _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev