add_docker_metadata

type Config struct {
	Host        string     `config:"host"`
	TLS         *TLSConfig `config:"ssl"`
	Fields      []string   `config:"match_fields"`
	MatchSource bool       `config:"match_source"`
	SourceIndex int        `config:"match_source_index"`
}

type Container struct {
	ID     string
	Name   string
	Image  string
	Labels map[string]string
}

type TLSConfig struct {
	CA          string `config:"certificate_authority"`
	Certificate string `config:"certificate"`
	Key         string `config:"key"`
}

type Watcher interface {
	// Start watching docker API for new containers
	Start() error

	// Container returns the running container with the given ID or nil if unknown
	Container(ID string) *Container

	// Containers returns the list of known containers
	Containers() map[string]*Container
}

type WatcherConstructor func(host string, tls *TLSConfig) (Watcher, error)