resources

type Admin interface {
	// GetNamespace gets namespaces.
	GetNamespace() (admin.NamespaceGetResponse, error)
	// WaitForNamespace blocks until the given namespace is enabled.
	// NB: if the name string is empty, this will instead
	// check for a successful response.
	WaitForNamespace(name string) error
	// AddNamespace adds a namespace.
	AddNamespace(admin.NamespaceAddRequest) (admin.NamespaceGetResponse, error)
	// CreateDatabase creates a database.
	CreateDatabase(admin.DatabaseCreateRequest) (admin.DatabaseCreateResponse, error)
	// GetPlacement gets placements.
	GetPlacement() (admin.PlacementGetResponse, error)
	// WaitForInstances blocks until the given instance is available.
	WaitForInstances(ids []string) error
	// Close closes the wrapper and releases any held resources, including
	// deleting docker containers.
	Close() error
}

type Coordinator interface {
	Admin

	// WriteCarbon writes a carbon metric datapoint at a given time.
	WriteCarbon(port int, metric string, v float64, t time.Time) error
	// RunQuery runs the given query with a given verification function.
	RunQuery(verifier GoalStateVerifier, query string) error
}

type DockerResources interface {
	// Cleanup closes and removes all corresponding containers.
	Cleanup() error
	// Nodes returns all node resources.
	Nodes() Nodes
	// Coordinator returns the coordinator resource.
	Coordinator() Coordinator
}

type GoalStateVerifier func(string, error) error

type Node interface {
	// HostDetails returns this node's host details on the given port.
	HostDetails(port int) (*admin.Host, error)
	// Health gives this node's health.
	Health() (*rpc.NodeHealthResult_, error)
	// WaitForBootstrap blocks until the node has bootstrapped.
	WaitForBootstrap() error
	// WritePoint writes a datapoint to the node directly.
	WritePoint(req *rpc.WriteRequest) error
	// Fetch fetches datapoints.
	Fetch(req *rpc.FetchRequest) (*rpc.FetchResult_, error)
	// Exec executes the given commands on the node container, returning
	// stdout and stderr from the container.
	Exec(commands ...string) (string, error)
	// GoalStateExec executes the given commands on the node container, retrying
	// until applying the verifier returns no error or the default timeout.
	GoalStateExec(verifier GoalStateVerifier, commands ...string) error
	// Restart restarts this container.
	Restart() error
	// Close closes the wrapper and releases any held resources, including
	// deleting docker containers.
	Close() error
}

type Nodes []Node