NewManager creates a metadataManager for a given DockerTaskEngine settings.

MetadataInitial is the initial state of the metadata file which contains metadata provided by the ECS Agent.

MetadataReady is the final state of the metadata file which indicates it has acquired all the data it needs (Currently from the Agent and Docker).

DockerContainerMetadata keeps track of all metadata acquired from Docker inspection Has redundancies with engine.DockerContainerMetadata but this packages all docker metadata we want in the service so we can change features easily.

Metadata packages all acquired metadata and is used to format it into JSON to write to the metadata file.

Network is a struct that keeps track of metadata of a network interface.

NetworkMetadata keeps track of the data we parse from the Network Settings in docker containers.

TaskMetadata keeps track of all metadata associated with a task provided by AWS, does not depend on the creation of the container.

DockerMetadataClient is a wrapper for the docker interface functions we need We use this as a dummy type to be able to pass in engine.DockerClient to our functions without creating import cycles We make it exported because we need to use it for testing (Using the MockDockerClient in engine package leads to import cycles) The problems described above are indications engine.DockerClient needs to be moved outside the engine package.

Manager is an interface that allows us to abstract away the metadata operations.

MetadataStatus specifies the current update status of the metadata file.