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77 lines
3 KiB
Go
77 lines
3 KiB
Go
package driverapi
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import (
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"errors"
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"fmt"
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"github.com/docker/libnetwork/sandbox"
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"github.com/docker/libnetwork/types"
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)
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var (
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// ErrEndpointExists is returned if more than one endpoint is added to the network
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ErrEndpointExists = errors.New("Endpoint already exists (Only one endpoint allowed)")
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// ErrNoNetwork is returned if no network with the specified id exists
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ErrNoNetwork = errors.New("No network exists")
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// ErrNoEndpoint is returned if no endpoint with the specified id exists
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ErrNoEndpoint = errors.New("No endpoint exists")
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// ErrNotImplemented is returned when a Driver has not implemented an API yet
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ErrNotImplemented = errors.New("The API is not implemented yet")
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)
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// Driver is an interface that every plugin driver needs to implement.
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type Driver interface {
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// Push driver specific config to the driver
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Config(options map[string]interface{}) error
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// CreateNetwork invokes the driver method to create a network passing
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// the network id and network specific config. The config mechanism will
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// eventually be replaced with labels which are yet to be introduced.
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CreateNetwork(nid types.UUID, options map[string]interface{}) error
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// DeleteNetwork invokes the driver method to delete network passing
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// the network id.
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DeleteNetwork(nid types.UUID) error
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// CreateEndpoint invokes the driver method to create an endpoint
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// passing the network id, endpoint id and driver
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// specific config. The config mechanism will eventually be replaced
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// with labels which are yet to be introduced.
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CreateEndpoint(nid, eid types.UUID, options map[string]interface{}) (*sandbox.Info, error)
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// DeleteEndpoint invokes the driver method to delete an endpoint
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// passing the network id and endpoint id.
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DeleteEndpoint(nid, eid types.UUID) error
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// EndpointInfo retrieves from the driver the operational data related to the specified endpoint
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EndpointInfo(nid, eid types.UUID) (map[string]interface{}, error)
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// Join method is invoked when a Sandbox is attached to an endpoint.
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Join(nid, eid types.UUID, sboxKey string, options map[string]interface{}) (*JoinInfo, error)
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// Leave method is invoked when a Sandbox detaches from an endpoint.
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Leave(nid, eid types.UUID, options map[string]interface{}) error
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// Type returns the the type of this driver, the network type this driver manages
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Type() string
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}
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// JoinInfo represents a set of resources that the driver has the ability to provide during
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// join time.
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type JoinInfo struct {
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HostsPath string
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}
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// ErrActiveRegistration represents an error when a driver is registered to a networkType that is previously registered
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type ErrActiveRegistration string
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// Error interface for ErrActiveRegistration
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func (ar ErrActiveRegistration) Error() string {
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return fmt.Sprintf("Driver already registered for type %q", string(ar))
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}
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// DriverCallback provides a Callback interface for Drivers into LibNetwork
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type DriverCallback interface {
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// RegisterDriver provides a way for Remote drivers to dynamically register new NetworkType and associate with a driver instance
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RegisterDriver(name string, driver Driver) error
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}
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