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go-micro/runtime/runtime.go
Milos Gajdos 6f7702a093 [WIP] K8s update and runtime package changes (#895)
* First commit: outline of K8s runtime package

* Added poller. Added auto-updater into default runtime

* Added build and updated Poller interface

* Added comments and NewRuntime that accepts Options

* DefaultPoller; Runtime options

* First commit to add Kubernetes cruft

* Add comments

* Add micro- prefix to K8s runtime service names

* Get rid of import cycles. Move K8s runtime into main runtime package

* Major refactoring: Poller replaced by Notifier

POller has been replaced by Notifier which returns a channel of events
that can be consumed and acted upon.

* Added runtime configuration options

* K8s runtime is now Kubernetes runtime in dedicated pkg. Naming kung-fu.

* Fix typo in command.

* Fixed typo

* Dont Delete service when runtime stops.

runtime.Stop stops services; no need to double-stop

* Track runtime services

* Parse Unix timestamps properly

* Added deployments into K8s client. Debug logging
2019-11-02 13:25:10 +00:00

88 lines
1.7 KiB
Go

// Package runtime is a service runtime manager
package runtime
import "time"
var (
// DefaultRuntime is default micro runtime
DefaultRuntime Runtime = NewRuntime()
)
// Runtime is a service runtime manager
type Runtime interface {
// Init initializes runtime
Init(...Option) error
// Registers a service
Create(*Service, ...CreateOption) error
// Remove a service
Delete(*Service) error
// Update the service in place
Update(*Service) error
// List the managed services
List() ([]*Service, error)
// starts the runtime
Start() error
// Shutdown the runtime
Stop() error
}
// Notifier is an update notifier
type Notifier interface {
// Notify publishes notification events
Notify() (<-chan Event, error)
// Close stops the notifier
Close() error
}
// EventType defines notification event
type EventType int
const (
// Create is emitted when a new build has been craeted
Create EventType = iota
// Update is emitted when a new update become available
Update
// Delete is emitted when a build has been deleted
Delete
)
// String returns human readable event type
func (t EventType) String() string {
switch t {
case Create:
return "create"
case Delete:
return "delete"
case Update:
return "update"
default:
return "unknown"
}
}
// Event is notification event
type Event struct {
// Type is event type
Type EventType
// Timestamp is event timestamp
Timestamp time.Time
// Service is the name of the service
Service string
// Version of the build
Version string
}
// Service is runtime service
type Service struct {
// Name of the service
Name string
// url location of source
Source string
// Path to store source
Path string
// Exec command
Exec string
// Version of the service
Version string
}