Vasiliy Tolstov
d291102877
* change domain to namespace * lower go.mod deps Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
92 lines
2.7 KiB
Go
92 lines
2.7 KiB
Go
// Package register is an interface for service discovery
|
|
package register
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
|
|
"go.unistack.org/micro/v3/metadata"
|
|
)
|
|
|
|
const (
|
|
// WildcardNamespace indicates any Namespace
|
|
WildcardNamespace = "*"
|
|
)
|
|
|
|
// DefaultNamespace to use if none was provided in options
|
|
var DefaultNamespace = "micro"
|
|
|
|
var (
|
|
// DefaultRegister is the global default register
|
|
DefaultRegister = NewRegister()
|
|
// ErrNotFound returned when LookupService is called and no services found
|
|
ErrNotFound = errors.New("service not found")
|
|
// ErrWatcherStopped returned when when watcher is stopped
|
|
ErrWatcherStopped = errors.New("watcher stopped")
|
|
)
|
|
|
|
// Register provides an interface for service discovery
|
|
// and an abstraction over varying implementations
|
|
// {consul, etcd, zookeeper, ...}
|
|
type Register interface {
|
|
// Name returns register name
|
|
Name() string
|
|
// Init initialize register
|
|
Init(...Option) error
|
|
// Options returns options for register
|
|
Options() Options
|
|
// Connect initialize connect to register
|
|
Connect(context.Context) error
|
|
// Disconnect initialize discconection from register
|
|
Disconnect(context.Context) error
|
|
// Register service in registry
|
|
Register(context.Context, *Service, ...RegisterOption) error
|
|
// Deregister service from registry
|
|
Deregister(context.Context, *Service, ...DeregisterOption) error
|
|
// LookupService in registry
|
|
LookupService(context.Context, string, ...LookupOption) ([]*Service, error)
|
|
// ListServices in registry
|
|
ListServices(context.Context, ...ListOption) ([]*Service, error)
|
|
// Watch registry events
|
|
Watch(context.Context, ...WatchOption) (Watcher, error)
|
|
// String returns registry string representation
|
|
String() string
|
|
// Live returns register liveness
|
|
// Live() bool
|
|
// Ready returns register readiness
|
|
// Ready() bool
|
|
}
|
|
|
|
// Service holds service register info
|
|
type Service struct {
|
|
Name string `json:"name,omitempty"`
|
|
Version string `json:"version,omitempty"`
|
|
Nodes []*Node `json:"nodes,omitempty"`
|
|
Namespace string `json:"namespace,omitempty"`
|
|
}
|
|
|
|
// Node holds node register info
|
|
type Node struct {
|
|
Metadata metadata.Metadata `json:"metadata,omitempty"`
|
|
ID string `json:"id,omitempty"`
|
|
Address string `json:"address,omitempty"`
|
|
}
|
|
|
|
// Option func signature
|
|
type Option func(*Options)
|
|
|
|
// RegisterOption option is used to register service
|
|
type RegisterOption func(*RegisterOptions) // nolint: golint,revive
|
|
|
|
// WatchOption option is used to watch service changes
|
|
type WatchOption func(*WatchOptions)
|
|
|
|
// DeregisterOption option is used to deregister service
|
|
type DeregisterOption func(*DeregisterOptions)
|
|
|
|
// LookupOption option is used to get service
|
|
type LookupOption func(*LookupOptions)
|
|
|
|
// ListOption option is used to list services
|
|
type ListOption func(*ListOptions)
|