Configuration Options

latest

Type: Boolean

Deploys latest docker from the upstream repositories. Fetches the GPG key, and adds the docker maintained repository to the apt sources list. Swaps package installation from docker.io to lxc-docker

Configuration Through Relations

The docker charm can reconfigure aspects of it self through different relationships exposed in the metadata.yaml file. To date, there is only 1 relationship that will reconfigure the service for cross-host networking.

Exposed Interfaces

Relationship: docker-containers

Interface: containers

Not currently implemented

This interface is presently unused - but is intended for broadcasting information about the running containers on the host. Such information would include:

• Container Name
• Container Hash
• Mapped Ports

This interface is exposed and intended to aid in consuming services that will be managing the containers on the host, such as Flocker or Kubernetes.

Consumed Interfaces

Relationship: network

Interface: overlay-network

Exists in: Experimental / Development branch

This interface is consumed to reconfigure the docker0 bridge that is created during boot of the docker service. This is useful when you need to expose the containers to another network without occupying the host-bridge port mapping.

Expected Data

• flannel-subnet
• flannel-mtu