Merge pull request #650 from micro/monitor
Add monitor/debug/service packages
This commit is contained in:
Asim Aslam
GitHub
commit
bc751c55fb
41
debug/handler/debug.go
Normal file
41
debug/handler/debug.go
Normal file
@ -0,0 +1,41 @@
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package handler
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import (
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"context"
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"runtime"
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"time"
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proto "github.com/micro/go-micro/debug/proto"
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)
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type Debug struct {
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proto.DebugHandler
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started int64
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}
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var (
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DefaultHandler = newDebug()
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)
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func newDebug() *Debug {
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return &Debug{
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started: time.Now().Unix(),
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}
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}
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func (d *Debug) Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error {
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rsp.Status = "ok"
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return nil
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}
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func (d *Debug) Stats(ctx context.Context, req *proto.StatsRequest, rsp *proto.StatsResponse) error {
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var mstat runtime.MemStats
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runtime.ReadMemStats(&mstat)
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rsp.Started = uint64(d.started)
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rsp.Uptime = uint64(time.Now().Unix() - d.started)
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rsp.Memory = mstat.Alloc
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rsp.Gc = mstat.PauseTotalNs
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rsp.Threads = uint64(runtime.NumGoroutine())
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return nil
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}
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108
debug/proto/debug.micro.go
Normal file
108
debug/proto/debug.micro.go
Normal file
@ -0,0 +1,108 @@
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// Code generated by protoc-gen-micro. DO NOT EDIT.
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// source: micro/go-micro/debug/proto/debug.proto
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package debug
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import (
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fmt "fmt"
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proto "github.com/golang/protobuf/proto"
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math "math"
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)
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import (
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context "context"
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client "github.com/micro/go-micro/client"
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server "github.com/micro/go-micro/server"
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)
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// Reference imports to suppress errors if they are not otherwise used.
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var _ = proto.Marshal
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var _ = fmt.Errorf
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var _ = math.Inf
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// This is a compile-time assertion to ensure that this generated file
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// is compatible with the proto package it is being compiled against.
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// A compilation error at this line likely means your copy of the
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// proto package needs to be updated.
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const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
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// Reference imports to suppress errors if they are not otherwise used.
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var _ context.Context
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var _ client.Option
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var _ server.Option
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// Client API for Debug service
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type DebugService interface {
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Health(ctx context.Context, in *HealthRequest, opts ...client.CallOption) (*HealthResponse, error)
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Stats(ctx context.Context, in *StatsRequest, opts ...client.CallOption) (*StatsResponse, error)
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}
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type debugService struct {
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c client.Client
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name string
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}
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func NewDebugService(name string, c client.Client) DebugService {
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if c == nil {
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c = client.NewClient()
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}
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if len(name) == 0 {
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name = "debug"
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}
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return &debugService{
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c: c,
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name: name,
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}
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}
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func (c *debugService) Health(ctx context.Context, in *HealthRequest, opts ...client.CallOption) (*HealthResponse, error) {
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req := c.c.NewRequest(c.name, "Debug.Health", in)
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out := new(HealthResponse)
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err := c.c.Call(ctx, req, out, opts...)
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if err != nil {
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return nil, err
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}
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return out, nil
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}
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func (c *debugService) Stats(ctx context.Context, in *StatsRequest, opts ...client.CallOption) (*StatsResponse, error) {
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req := c.c.NewRequest(c.name, "Debug.Stats", in)
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out := new(StatsResponse)
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err := c.c.Call(ctx, req, out, opts...)
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if err != nil {
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return nil, err
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}
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return out, nil
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}
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// Server API for Debug service
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type DebugHandler interface {
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Health(context.Context, *HealthRequest, *HealthResponse) error
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Stats(context.Context, *StatsRequest, *StatsResponse) error
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}
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func RegisterDebugHandler(s server.Server, hdlr DebugHandler, opts ...server.HandlerOption) error {
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type debug interface {
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Health(ctx context.Context, in *HealthRequest, out *HealthResponse) error
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Stats(ctx context.Context, in *StatsRequest, out *StatsResponse) error
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}
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type Debug struct {
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debug
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}
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h := &debugHandler{hdlr}
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return s.Handle(s.NewHandler(&Debug{h}, opts...))
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}
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type debugHandler struct {
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DebugHandler
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}
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func (h *debugHandler) Health(ctx context.Context, in *HealthRequest, out *HealthResponse) error {
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return h.DebugHandler.Health(ctx, in, out)
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}
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func (h *debugHandler) Stats(ctx context.Context, in *StatsRequest, out *StatsResponse) error {
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return h.DebugHandler.Stats(ctx, in, out)
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}
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336
debug/proto/debug.pb.go
Normal file
336
debug/proto/debug.pb.go
Normal file
@ -0,0 +1,336 @@
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// Code generated by protoc-gen-go. DO NOT EDIT.
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// source: micro/go-micro/debug/proto/debug.proto
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package debug
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import (
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context "context"
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fmt "fmt"
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proto "github.com/golang/protobuf/proto"
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grpc "google.golang.org/grpc"
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math "math"
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)
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// Reference imports to suppress errors if they are not otherwise used.
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var _ = proto.Marshal
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var _ = fmt.Errorf
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var _ = math.Inf
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|
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// This is a compile-time assertion to ensure that this generated file
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// is compatible with the proto package it is being compiled against.
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// A compilation error at this line likely means your copy of the
|
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// proto package needs to be updated.
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const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
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type HealthRequest struct {
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *HealthRequest) Reset() { *m = HealthRequest{} }
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func (m *HealthRequest) String() string { return proto.CompactTextString(m) }
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func (*HealthRequest) ProtoMessage() {}
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func (*HealthRequest) Descriptor() ([]byte, []int) {
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return fileDescriptor_f25415e61bccfa1f, []int{0}
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}
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func (m *HealthRequest) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_HealthRequest.Unmarshal(m, b)
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}
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func (m *HealthRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
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return xxx_messageInfo_HealthRequest.Marshal(b, m, deterministic)
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}
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func (m *HealthRequest) XXX_Merge(src proto.Message) {
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xxx_messageInfo_HealthRequest.Merge(m, src)
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}
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func (m *HealthRequest) XXX_Size() int {
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return xxx_messageInfo_HealthRequest.Size(m)
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}
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func (m *HealthRequest) XXX_DiscardUnknown() {
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xxx_messageInfo_HealthRequest.DiscardUnknown(m)
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}
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var xxx_messageInfo_HealthRequest proto.InternalMessageInfo
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type HealthResponse struct {
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// default: ok
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Status string `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *HealthResponse) Reset() { *m = HealthResponse{} }
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func (m *HealthResponse) String() string { return proto.CompactTextString(m) }
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func (*HealthResponse) ProtoMessage() {}
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func (*HealthResponse) Descriptor() ([]byte, []int) {
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return fileDescriptor_f25415e61bccfa1f, []int{1}
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}
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func (m *HealthResponse) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_HealthResponse.Unmarshal(m, b)
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}
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func (m *HealthResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
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return xxx_messageInfo_HealthResponse.Marshal(b, m, deterministic)
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}
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func (m *HealthResponse) XXX_Merge(src proto.Message) {
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xxx_messageInfo_HealthResponse.Merge(m, src)
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}
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func (m *HealthResponse) XXX_Size() int {
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return xxx_messageInfo_HealthResponse.Size(m)
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}
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func (m *HealthResponse) XXX_DiscardUnknown() {
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xxx_messageInfo_HealthResponse.DiscardUnknown(m)
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}
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var xxx_messageInfo_HealthResponse proto.InternalMessageInfo
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func (m *HealthResponse) GetStatus() string {
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if m != nil {
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return m.Status
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}
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return ""
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}
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type StatsRequest struct {
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *StatsRequest) Reset() { *m = StatsRequest{} }
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func (m *StatsRequest) String() string { return proto.CompactTextString(m) }
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func (*StatsRequest) ProtoMessage() {}
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func (*StatsRequest) Descriptor() ([]byte, []int) {
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return fileDescriptor_f25415e61bccfa1f, []int{2}
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}
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func (m *StatsRequest) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_StatsRequest.Unmarshal(m, b)
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}
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func (m *StatsRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
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return xxx_messageInfo_StatsRequest.Marshal(b, m, deterministic)
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}
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func (m *StatsRequest) XXX_Merge(src proto.Message) {
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xxx_messageInfo_StatsRequest.Merge(m, src)
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}
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func (m *StatsRequest) XXX_Size() int {
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return xxx_messageInfo_StatsRequest.Size(m)
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}
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func (m *StatsRequest) XXX_DiscardUnknown() {
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xxx_messageInfo_StatsRequest.DiscardUnknown(m)
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}
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var xxx_messageInfo_StatsRequest proto.InternalMessageInfo
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type StatsResponse struct {
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// unix timestamp
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Started uint64 `protobuf:"varint,1,opt,name=started,proto3" json:"started,omitempty"`
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// in seconds
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Uptime uint64 `protobuf:"varint,2,opt,name=uptime,proto3" json:"uptime,omitempty"`
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// in bytes
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Memory uint64 `protobuf:"varint,3,opt,name=memory,proto3" json:"memory,omitempty"`
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// num threads
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Threads uint64 `protobuf:"varint,4,opt,name=threads,proto3" json:"threads,omitempty"`
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// total gc in nanoseconds
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Gc uint64 `protobuf:"varint,5,opt,name=gc,proto3" json:"gc,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *StatsResponse) Reset() { *m = StatsResponse{} }
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func (m *StatsResponse) String() string { return proto.CompactTextString(m) }
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func (*StatsResponse) ProtoMessage() {}
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func (*StatsResponse) Descriptor() ([]byte, []int) {
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return fileDescriptor_f25415e61bccfa1f, []int{3}
|
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}
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func (m *StatsResponse) XXX_Unmarshal(b []byte) error {
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return xxx_messageInfo_StatsResponse.Unmarshal(m, b)
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}
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func (m *StatsResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
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return xxx_messageInfo_StatsResponse.Marshal(b, m, deterministic)
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}
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func (m *StatsResponse) XXX_Merge(src proto.Message) {
|
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xxx_messageInfo_StatsResponse.Merge(m, src)
|
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}
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func (m *StatsResponse) XXX_Size() int {
|
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return xxx_messageInfo_StatsResponse.Size(m)
|
||||
}
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func (m *StatsResponse) XXX_DiscardUnknown() {
|
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xxx_messageInfo_StatsResponse.DiscardUnknown(m)
|
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}
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var xxx_messageInfo_StatsResponse proto.InternalMessageInfo
|
||||
|
||||
func (m *StatsResponse) GetStarted() uint64 {
|
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if m != nil {
|
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return m.Started
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}
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return 0
|
||||
}
|
||||
|
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func (m *StatsResponse) GetUptime() uint64 {
|
||||
if m != nil {
|
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return m.Uptime
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||||
}
|
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return 0
|
||||
}
|
||||
|
||||
func (m *StatsResponse) GetMemory() uint64 {
|
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if m != nil {
|
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return m.Memory
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (m *StatsResponse) GetThreads() uint64 {
|
||||
if m != nil {
|
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return m.Threads
|
||||
}
|
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return 0
|
||||
}
|
||||
|
||||
func (m *StatsResponse) GetGc() uint64 {
|
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if m != nil {
|
||||
return m.Gc
|
||||
}
|
||||
return 0
|
||||
}
|
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|
||||
func init() {
|
||||
proto.RegisterType((*HealthRequest)(nil), "HealthRequest")
|
||||
proto.RegisterType((*HealthResponse)(nil), "HealthResponse")
|
||||
proto.RegisterType((*StatsRequest)(nil), "StatsRequest")
|
||||
proto.RegisterType((*StatsResponse)(nil), "StatsResponse")
|
||||
}
|
||||
|
||||
func init() {
|
||||
proto.RegisterFile("micro/go-micro/debug/proto/debug.proto", fileDescriptor_f25415e61bccfa1f)
|
||||
}
|
||||
|
||||
var fileDescriptor_f25415e61bccfa1f = []byte{
|
||||
// 230 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x54, 0x90, 0x41, 0x4b, 0xc4, 0x30,
|
||||
0x10, 0x85, 0xb7, 0x75, 0x5b, 0x71, 0xb0, 0x59, 0xc8, 0x41, 0xc2, 0x9e, 0x24, 0x07, 0x29, 0x88,
|
||||
0x59, 0xd0, 0xbf, 0xe0, 0xc1, 0x73, 0xbd, 0x0b, 0xd9, 0x76, 0xe8, 0x16, 0xac, 0xa9, 0x99, 0xe9,
|
||||
0xc1, 0xb3, 0x7f, 0x5c, 0x9a, 0xa4, 0x60, 0x6f, 0xef, 0xbd, 0xf0, 0x1e, 0xf9, 0x06, 0x1e, 0xc6,
|
||||
0xa1, 0xf5, 0xee, 0xd4, 0xbb, 0xa7, 0x28, 0x3a, 0x3c, 0xcf, 0xfd, 0x69, 0xf2, 0x8e, 0x93, 0x36,
|
||||
0x41, 0xeb, 0x03, 0x54, 0x6f, 0x68, 0x3f, 0xf9, 0xd2, 0xe0, 0xf7, 0x8c, 0xc4, 0xba, 0x06, 0xb1,
|
||||
0x06, 0x34, 0xb9, 0x2f, 0x42, 0x79, 0x07, 0x25, 0xb1, 0xe5, 0x99, 0x54, 0x76, 0x9f, 0xd5, 0x37,
|
||||
0x4d, 0x72, 0x5a, 0xc0, 0xed, 0x3b, 0x5b, 0xa6, 0xb5, 0xf9, 0x9b, 0x41, 0x95, 0x82, 0xd4, 0x54,
|
||||
0x70, 0x4d, 0x6c, 0x3d, 0x63, 0x17, 0xaa, 0xfb, 0x66, 0xb5, 0xcb, 0xe6, 0x3c, 0xf1, 0x30, 0xa2,
|
||||
0xca, 0xc3, 0x43, 0x72, 0x4b, 0x3e, 0xe2, 0xe8, 0xfc, 0x8f, 0xba, 0x8a, 0x79, 0x74, 0xcb, 0x12,
|
||||
0x5f, 0x3c, 0xda, 0x8e, 0xd4, 0x3e, 0x2e, 0x25, 0x2b, 0x05, 0xe4, 0x7d, 0xab, 0x8a, 0x10, 0xe6,
|
||||
0x7d, 0xfb, 0xfc, 0x01, 0xc5, 0xeb, 0xc2, 0x27, 0x1f, 0xa1, 0x8c, 0x20, 0x52, 0x98, 0x0d, 0xe2,
|
||||
0xf1, 0x60, 0xb6, 0x84, 0x7a, 0x27, 0x6b, 0x28, 0xc2, 0xd7, 0x65, 0x65, 0xfe, 0x33, 0x1d, 0x85,
|
||||
0xd9, 0x10, 0xe9, 0xdd, 0xb9, 0x0c, 0x77, 0x7b, 0xf9, 0x0b, 0x00, 0x00, 0xff, 0xff, 0xfe, 0xb9,
|
||||
0x5f, 0xf7, 0x61, 0x01, 0x00, 0x00,
|
||||
}
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
var _ context.Context
|
||||
var _ grpc.ClientConn
|
||||
|
||||
// This is a compile-time assertion to ensure that this generated file
|
||||
// is compatible with the grpc package it is being compiled against.
|
||||
const _ = grpc.SupportPackageIsVersion4
|
||||
|
||||
// DebugClient is the client API for Debug service.
|
||||
//
|
||||
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
|
||||
type DebugClient interface {
|
||||
Health(ctx context.Context, in *HealthRequest, opts ...grpc.CallOption) (*HealthResponse, error)
|
||||
Stats(ctx context.Context, in *StatsRequest, opts ...grpc.CallOption) (*StatsResponse, error)
|
||||
}
|
||||
|
||||
type debugClient struct {
|
||||
cc *grpc.ClientConn
|
||||
}
|
||||
|
||||
func NewDebugClient(cc *grpc.ClientConn) DebugClient {
|
||||
return &debugClient{cc}
|
||||
}
|
||||
|
||||
func (c *debugClient) Health(ctx context.Context, in *HealthRequest, opts ...grpc.CallOption) (*HealthResponse, error) {
|
||||
out := new(HealthResponse)
|
||||
err := c.cc.Invoke(ctx, "/Debug/Health", in, out, opts...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return out, nil
|
||||
}
|
||||
|
||||
func (c *debugClient) Stats(ctx context.Context, in *StatsRequest, opts ...grpc.CallOption) (*StatsResponse, error) {
|
||||
out := new(StatsResponse)
|
||||
err := c.cc.Invoke(ctx, "/Debug/Stats", in, out, opts...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return out, nil
|
||||
}
|
||||
|
||||
// DebugServer is the server API for Debug service.
|
||||
type DebugServer interface {
|
||||
Health(context.Context, *HealthRequest) (*HealthResponse, error)
|
||||
Stats(context.Context, *StatsRequest) (*StatsResponse, error)
|
||||
}
|
||||
|
||||
func RegisterDebugServer(s *grpc.Server, srv DebugServer) {
|
||||
s.RegisterService(&_Debug_serviceDesc, srv)
|
||||
}
|
||||
|
||||
func _Debug_Health_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
|
||||
in := new(HealthRequest)
|
||||
if err := dec(in); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if interceptor == nil {
|
||||
return srv.(DebugServer).Health(ctx, in)
|
||||
}
|
||||
info := &grpc.UnaryServerInfo{
|
||||
Server: srv,
|
||||
FullMethod: "/Debug/Health",
|
||||
}
|
||||
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
|
||||
return srv.(DebugServer).Health(ctx, req.(*HealthRequest))
|
||||
}
|
||||
return interceptor(ctx, in, info, handler)
|
||||
}
|
||||
|
||||
func _Debug_Stats_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
|
||||
in := new(StatsRequest)
|
||||
if err := dec(in); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if interceptor == nil {
|
||||
return srv.(DebugServer).Stats(ctx, in)
|
||||
}
|
||||
info := &grpc.UnaryServerInfo{
|
||||
Server: srv,
|
||||
FullMethod: "/Debug/Stats",
|
||||
}
|
||||
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
|
||||
return srv.(DebugServer).Stats(ctx, req.(*StatsRequest))
|
||||
}
|
||||
return interceptor(ctx, in, info, handler)
|
||||
}
|
||||
|
||||
var _Debug_serviceDesc = grpc.ServiceDesc{
|
||||
ServiceName: "Debug",
|
||||
HandlerType: (*DebugServer)(nil),
|
||||
Methods: []grpc.MethodDesc{
|
||||
{
|
||||
MethodName: "Health",
|
||||
Handler: _Debug_Health_Handler,
|
||||
},
|
||||
{
|
||||
MethodName: "Stats",
|
||||
Handler: _Debug_Stats_Handler,
|
||||
},
|
||||
},
|
||||
Streams: []grpc.StreamDesc{},
|
||||
Metadata: "micro/go-micro/debug/proto/debug.proto",
|
||||
}
|
||||
@ -1,13 +1,9 @@
|
||||
syntax = "proto3";
|
||||
|
||||
// This is commented out due to import cycles.
|
||||
// But its what we expect the RPC service to
|
||||
// return.
|
||||
//
|
||||
// service Debug {
|
||||
// rpc Health(HealthRequest) returns (HealthResponse) {}
|
||||
// rpc Stats(StatsRequest) returns (StatsResponse) {}
|
||||
// }
|
||||
service Debug {
|
||||
rpc Health(HealthRequest) returns (HealthResponse) {}
|
||||
rpc Stats(StatsRequest) returns (StatsResponse) {}
|
||||
}
|
||||
|
||||
message HealthRequest {
|
||||
}
|
||||
@ -5,8 +5,8 @@ import (
|
||||
"sync"
|
||||
"testing"
|
||||
|
||||
proto "github.com/micro/go-micro/debug/proto"
|
||||
"github.com/micro/go-micro/registry/memory"
|
||||
proto "github.com/micro/go-micro/server/debug/proto"
|
||||
)
|
||||
|
||||
func TestFunction(t *testing.T) {
|
||||
|
||||
214
monitor/default.go
Normal file
214
monitor/default.go
Normal file
@ -0,0 +1,214 @@
|
||||
package monitor
|
||||
|
||||
import (
|
||||
"context"
|
||||
"errors"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/micro/go-micro/client"
|
||||
pb "github.com/micro/go-micro/debug/proto"
|
||||
"github.com/micro/go-micro/registry"
|
||||
"github.com/micro/go-micro/registry/cache"
|
||||
)
|
||||
|
||||
type monitor struct {
|
||||
options Options
|
||||
|
||||
exit chan bool
|
||||
registry cache.Cache
|
||||
client client.Client
|
||||
|
||||
sync.RWMutex
|
||||
services map[string]*Status
|
||||
}
|
||||
|
||||
// check provides binary running/failed status.
|
||||
// In the event Debug.Health cannot be called on a service we reap the node.
|
||||
func (m *monitor) check(service string) (*Status, error) {
|
||||
services, err := m.registry.GetService(service)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// create debug client
|
||||
debug := pb.NewDebugService(service, m.client)
|
||||
|
||||
var status *Status
|
||||
var gerr error
|
||||
|
||||
// iterate through multiple versions of a service
|
||||
for _, service := range services {
|
||||
for _, node := range service.Nodes {
|
||||
rsp, err := debug.Health(
|
||||
context.Background(),
|
||||
// empty health request
|
||||
&pb.HealthRequest{},
|
||||
// call this specific node
|
||||
client.WithAddress(node.Address),
|
||||
// retry in the event of failure
|
||||
client.WithRetries(3),
|
||||
)
|
||||
if err != nil {
|
||||
// reap the dead node
|
||||
m.registry.Deregister(®istry.Service{
|
||||
Name: service.Name,
|
||||
Version: service.Version,
|
||||
Nodes: []*registry.Node{node},
|
||||
})
|
||||
|
||||
// save the error
|
||||
gerr = err
|
||||
continue
|
||||
}
|
||||
|
||||
// expecting ok response status
|
||||
if rsp.Status != "ok" {
|
||||
gerr = errors.New(rsp.Status)
|
||||
continue
|
||||
}
|
||||
|
||||
// no error set status
|
||||
status = &Status{
|
||||
Code: StatusRunning,
|
||||
Info: "running",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// if we got the success case return it
|
||||
if status != nil {
|
||||
return status, nil
|
||||
}
|
||||
|
||||
// if gerr is not nil return it
|
||||
if gerr != nil {
|
||||
return &Status{
|
||||
Code: StatusFailed,
|
||||
Info: "not running",
|
||||
Error: gerr.Error(),
|
||||
}, nil
|
||||
}
|
||||
|
||||
// otherwise unknown status
|
||||
return &Status{
|
||||
Code: StatusUnknown,
|
||||
Info: "unknown status",
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (m *monitor) Status(service string) (Status, error) {
|
||||
m.RLock()
|
||||
defer m.RUnlock()
|
||||
if status, ok := m.services[service]; ok {
|
||||
return *status, nil
|
||||
}
|
||||
return Status{}, ErrNotWatching
|
||||
}
|
||||
|
||||
func (m *monitor) Watch(service string) error {
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
|
||||
// check if we're watching
|
||||
if _, ok := m.services[service]; ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
// get the status
|
||||
status, err := m.check(service)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// set the status
|
||||
m.services[service] = status
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *monitor) Stop() error {
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
|
||||
select {
|
||||
case <-m.exit:
|
||||
return nil
|
||||
default:
|
||||
close(m.exit)
|
||||
for s, _ := range m.services {
|
||||
delete(m.services, s)
|
||||
}
|
||||
m.registry.Stop()
|
||||
return nil
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *monitor) run() {
|
||||
// check the status every tick
|
||||
t := time.NewTicker(time.Minute)
|
||||
defer t.Stop()
|
||||
|
||||
check := make(chan string)
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-m.exit:
|
||||
return
|
||||
case service := <-check:
|
||||
// check the status
|
||||
status, err := m.check(service)
|
||||
if err != nil {
|
||||
status = &Status{
|
||||
Code: StatusUnknown,
|
||||
Info: "unknown status",
|
||||
}
|
||||
}
|
||||
|
||||
// save the status
|
||||
m.Lock()
|
||||
m.services[service] = status
|
||||
m.Unlock()
|
||||
case <-t.C:
|
||||
// create a list of services
|
||||
var services []string
|
||||
m.RLock()
|
||||
for service, _ := range m.services {
|
||||
services = append(services, service)
|
||||
}
|
||||
m.RUnlock()
|
||||
|
||||
// check the status of all watched services
|
||||
for _, service := range services {
|
||||
select {
|
||||
case <-m.exit:
|
||||
return
|
||||
case check <- service:
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func newMonitor(opts ...Option) Monitor {
|
||||
options := Options{
|
||||
Client: client.DefaultClient,
|
||||
Registry: registry.DefaultRegistry,
|
||||
}
|
||||
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
m := &monitor{
|
||||
options: options,
|
||||
exit: make(chan bool),
|
||||
client: options.Client,
|
||||
registry: cache.New(options.Registry),
|
||||
services: make(map[string]*Status),
|
||||
}
|
||||
|
||||
go m.run()
|
||||
return m
|
||||
}
|
||||
31
monitor/default_test.go
Normal file
31
monitor/default_test.go
Normal file
@ -0,0 +1,31 @@
|
||||
package monitor
|
||||
|
||||
import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestMonitor(t *testing.T) {
|
||||
// create new monitor
|
||||
m := NewMonitor()
|
||||
|
||||
services := []string{"foo", "bar", "baz"}
|
||||
|
||||
for _, service := range services {
|
||||
_, err := m.Status(service)
|
||||
if err == nil {
|
||||
t.Fatal("expected status error for unknown service")
|
||||
}
|
||||
|
||||
if err := m.Watch(service); err == nil {
|
||||
t.Fatal("expected watch error for unknown service")
|
||||
}
|
||||
|
||||
// TODO:
|
||||
// 1. start a service
|
||||
// 2. watch service
|
||||
// 3. get service status
|
||||
}
|
||||
|
||||
// stop monitor
|
||||
m.Stop()
|
||||
}
|
||||
39
monitor/monitor.go
Normal file
39
monitor/monitor.go
Normal file
@ -0,0 +1,39 @@
|
||||
// Package monitor monitors service health
|
||||
package monitor
|
||||
|
||||
import (
|
||||
"errors"
|
||||
)
|
||||
|
||||
const (
|
||||
StatusUnknown StatusCode = iota
|
||||
StatusRunning
|
||||
StatusFailed
|
||||
)
|
||||
|
||||
type StatusCode int
|
||||
|
||||
// Monitor monitors a service and reaps dead instances
|
||||
type Monitor interface {
|
||||
// Status of the service
|
||||
Status(service string) (Status, error)
|
||||
// Watch starts watching the service
|
||||
Watch(service string) error
|
||||
// Stop monitoring
|
||||
Stop() error
|
||||
}
|
||||
|
||||
type Status struct {
|
||||
Code StatusCode
|
||||
Info string
|
||||
Error string
|
||||
}
|
||||
|
||||
var (
|
||||
ErrNotWatching = errors.New("not watching")
|
||||
)
|
||||
|
||||
// NewMonitor returns a new monitor
|
||||
func NewMonitor(opts ...Option) Monitor {
|
||||
return newMonitor(opts...)
|
||||
}
|
||||
25
monitor/options.go
Normal file
25
monitor/options.go
Normal file
@ -0,0 +1,25 @@
|
||||
package monitor
|
||||
|
||||
import (
|
||||
"github.com/micro/go-micro/client"
|
||||
"github.com/micro/go-micro/registry"
|
||||
)
|
||||
|
||||
type Options struct {
|
||||
Client client.Client
|
||||
Registry registry.Registry
|
||||
}
|
||||
|
||||
type Option func(*Options)
|
||||
|
||||
func Client(c client.Client) Option {
|
||||
return func(o *Options) {
|
||||
o.Client = c
|
||||
}
|
||||
}
|
||||
|
||||
func Registry(r registry.Registry) Option {
|
||||
return func(o *Options) {
|
||||
o.Registry = r
|
||||
}
|
||||
}
|
||||
@ -1,9 +0,0 @@
|
||||
package server
|
||||
|
||||
import (
|
||||
"github.com/micro/go-micro/server/debug"
|
||||
)
|
||||
|
||||
func registerDebugHandler(s Server) {
|
||||
s.Handle(s.NewHandler(&debug.Debug{s.Options().DebugHandler}, InternalHandler(true)))
|
||||
}
|
||||
@ -1,55 +0,0 @@
|
||||
package debug
|
||||
|
||||
import (
|
||||
"context"
|
||||
"runtime"
|
||||
"time"
|
||||
|
||||
proto "github.com/micro/go-micro/server/debug/proto"
|
||||
)
|
||||
|
||||
// The debug handler represents an internal server handler
|
||||
// used to determine health, status and env info about
|
||||
// a service node. It's akin to Google's /statusz, /healthz,
|
||||
// and /varz
|
||||
type Handler interface {
|
||||
Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error
|
||||
Stats(ctx context.Context, req *proto.StatsRequest, rsp *proto.StatsResponse) error
|
||||
}
|
||||
|
||||
// Our own internal handler
|
||||
type debug struct {
|
||||
started int64
|
||||
}
|
||||
|
||||
// We use this to wrap any debug handlers so we preserve the signature Debug.{Method}
|
||||
type Debug struct {
|
||||
Handler
|
||||
}
|
||||
|
||||
var (
|
||||
DefaultHandler Handler = newDebug()
|
||||
)
|
||||
|
||||
func newDebug() *debug {
|
||||
return &debug{
|
||||
started: time.Now().Unix(),
|
||||
}
|
||||
}
|
||||
|
||||
func (d *debug) Health(ctx context.Context, req *proto.HealthRequest, rsp *proto.HealthResponse) error {
|
||||
rsp.Status = "ok"
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d *debug) Stats(ctx context.Context, req *proto.StatsRequest, rsp *proto.StatsResponse) error {
|
||||
var mstat runtime.MemStats
|
||||
runtime.ReadMemStats(&mstat)
|
||||
|
||||
rsp.Started = uint64(d.started)
|
||||
rsp.Uptime = uint64(time.Now().Unix() - d.started)
|
||||
rsp.Memory = mstat.Alloc
|
||||
rsp.Gc = mstat.PauseTotalNs
|
||||
rsp.Threads = uint64(runtime.NumGoroutine())
|
||||
return nil
|
||||
}
|
||||
@ -1,100 +0,0 @@
|
||||
// Code generated by protoc-gen-go.
|
||||
// source: github.com/micro/go-micro/server/debug/proto/debug.proto
|
||||
// DO NOT EDIT!
|
||||
|
||||
/*
|
||||
Package debug is a generated protocol buffer package.
|
||||
|
||||
It is generated from these files:
|
||||
github.com/micro/go-micro/server/debug/proto/debug.proto
|
||||
|
||||
It has these top-level messages:
|
||||
HealthRequest
|
||||
HealthResponse
|
||||
StatsRequest
|
||||
StatsResponse
|
||||
*/
|
||||
package debug
|
||||
|
||||
import proto "github.com/golang/protobuf/proto"
|
||||
import fmt "fmt"
|
||||
import math "math"
|
||||
|
||||
// Reference imports to suppress errors if they are not otherwise used.
|
||||
var _ = proto.Marshal
|
||||
var _ = fmt.Errorf
|
||||
var _ = math.Inf
|
||||
|
||||
// This is a compile-time assertion to ensure that this generated file
|
||||
// is compatible with the proto package it is being compiled against.
|
||||
// A compilation error at this line likely means your copy of the
|
||||
// proto package needs to be updated.
|
||||
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
|
||||
|
||||
type HealthRequest struct {
|
||||
}
|
||||
|
||||
func (m *HealthRequest) Reset() { *m = HealthRequest{} }
|
||||
func (m *HealthRequest) String() string { return proto.CompactTextString(m) }
|
||||
func (*HealthRequest) ProtoMessage() {}
|
||||
func (*HealthRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
|
||||
|
||||
type HealthResponse struct {
|
||||
// default: ok
|
||||
Status string `protobuf:"bytes,1,opt,name=status" json:"status,omitempty"`
|
||||
}
|
||||
|
||||
func (m *HealthResponse) Reset() { *m = HealthResponse{} }
|
||||
func (m *HealthResponse) String() string { return proto.CompactTextString(m) }
|
||||
func (*HealthResponse) ProtoMessage() {}
|
||||
func (*HealthResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
|
||||
|
||||
type StatsRequest struct {
|
||||
}
|
||||
|
||||
func (m *StatsRequest) Reset() { *m = StatsRequest{} }
|
||||
func (m *StatsRequest) String() string { return proto.CompactTextString(m) }
|
||||
func (*StatsRequest) ProtoMessage() {}
|
||||
func (*StatsRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
|
||||
|
||||
type StatsResponse struct {
|
||||
// unix timestamp
|
||||
Started uint64 `protobuf:"varint,1,opt,name=started" json:"started,omitempty"`
|
||||
// in seconds
|
||||
Uptime uint64 `protobuf:"varint,2,opt,name=uptime" json:"uptime,omitempty"`
|
||||
// in bytes
|
||||
Memory uint64 `protobuf:"varint,3,opt,name=memory" json:"memory,omitempty"`
|
||||
// num threads
|
||||
Threads uint64 `protobuf:"varint,4,opt,name=threads" json:"threads,omitempty"`
|
||||
// in nanoseconds
|
||||
Gc uint64 `protobuf:"varint,5,opt,name=gc" json:"gc,omitempty"`
|
||||
}
|
||||
|
||||
func (m *StatsResponse) Reset() { *m = StatsResponse{} }
|
||||
func (m *StatsResponse) String() string { return proto.CompactTextString(m) }
|
||||
func (*StatsResponse) ProtoMessage() {}
|
||||
func (*StatsResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
|
||||
|
||||
func init() {
|
||||
proto.RegisterType((*HealthRequest)(nil), "HealthRequest")
|
||||
proto.RegisterType((*HealthResponse)(nil), "HealthResponse")
|
||||
proto.RegisterType((*StatsRequest)(nil), "StatsRequest")
|
||||
proto.RegisterType((*StatsResponse)(nil), "StatsResponse")
|
||||
}
|
||||
|
||||
var fileDescriptor0 = []byte{
|
||||
// 201 bytes of a gzipped FileDescriptorProto
|
||||
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x34, 0x8f, 0xbd, 0x6e, 0x83, 0x30,
|
||||
0x14, 0x85, 0x05, 0xa5, 0x54, 0xbd, 0x2a, 0x54, 0x62, 0xa8, 0x3c, 0x56, 0x4c, 0x2c, 0xc5, 0x43,
|
||||
0x97, 0x3e, 0x42, 0x67, 0xf2, 0x04, 0xfc, 0x5c, 0x19, 0xa4, 0x38, 0x26, 0xbe, 0xd7, 0x91, 0x32,
|
||||
0xe7, 0xc5, 0x03, 0xb6, 0xd9, 0xce, 0xf7, 0xd9, 0xe7, 0x48, 0x17, 0xfe, 0xd4, 0xc2, 0xb3, 0x1b,
|
||||
0xda, 0xd1, 0x68, 0xa9, 0x97, 0xd1, 0x1a, 0xa9, 0xcc, 0x4f, 0x08, 0x84, 0xf6, 0x86, 0x56, 0x4e,
|
||||
0x38, 0x38, 0x25, 0x57, 0x6b, 0xd8, 0x84, 0xdc, 0xfa, 0x5c, 0x7f, 0x42, 0xf1, 0x8f, 0xfd, 0x99,
|
||||
0xe7, 0x0e, 0xaf, 0x0e, 0x89, 0xeb, 0x06, 0xca, 0x43, 0xd0, 0x6a, 0x2e, 0x84, 0xd5, 0x17, 0xe4,
|
||||
0xc4, 0x3d, 0x3b, 0x12, 0xc9, 0x77, 0xd2, 0xbc, 0x77, 0x91, 0xea, 0x12, 0x3e, 0x4e, 0x5b, 0xa2,
|
||||
0xa3, 0xf9, 0x48, 0xa0, 0x88, 0x22, 0x36, 0x05, 0xbc, 0x6d, 0x7f, 0x2d, 0xe3, 0xe4, 0xab, 0x59,
|
||||
0x77, 0xe0, 0xbe, 0xe9, 0x56, 0x5e, 0x34, 0x8a, 0xd4, 0x3f, 0x44, 0xda, 0xbd, 0x46, 0x6d, 0xec,
|
||||
0x5d, 0xbc, 0x04, 0x1f, 0x68, 0x5f, 0xe2, 0xd9, 0x62, 0x3f, 0x91, 0xc8, 0xc2, 0x52, 0xc4, 0xaa,
|
||||
0x84, 0x54, 0x8d, 0xe2, 0xd5, 0xcb, 0x2d, 0x0d, 0xb9, 0xbf, 0xeb, 0xf7, 0x19, 0x00, 0x00, 0xff,
|
||||
0xff, 0xc6, 0x75, 0x51, 0x35, 0x13, 0x01, 0x00, 0x00,
|
||||
}
|
||||
@ -1,10 +0,0 @@
|
||||
package grpc
|
||||
|
||||
import (
|
||||
"github.com/micro/go-micro/server"
|
||||
"github.com/micro/go-micro/server/debug"
|
||||
)
|
||||
|
||||
func registerDebugHandler(s server.Server) {
|
||||
s.Handle(s.NewHandler(&debug.Debug{s.Options().DebugHandler}, server.InternalHandler(true)))
|
||||
}
|
||||
@ -700,7 +700,6 @@ func (g *grpcServer) Deregister() error {
|
||||
}
|
||||
|
||||
func (g *grpcServer) Start() error {
|
||||
registerDebugHandler(g)
|
||||
config := g.opts
|
||||
|
||||
// micro: config.Transport.Listen(config.Address)
|
||||
|
||||
@ -8,7 +8,6 @@ import (
|
||||
"github.com/micro/go-micro/codec"
|
||||
"github.com/micro/go-micro/registry"
|
||||
"github.com/micro/go-micro/server"
|
||||
"github.com/micro/go-micro/server/debug"
|
||||
"github.com/micro/go-micro/transport"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/encoding"
|
||||
@ -89,10 +88,6 @@ func newOptions(opt ...server.Option) server.Options {
|
||||
opts.Transport = transport.DefaultTransport
|
||||
}
|
||||
|
||||
if opts.DebugHandler == nil {
|
||||
opts.DebugHandler = debug.DefaultHandler
|
||||
}
|
||||
|
||||
if len(opts.Address) == 0 {
|
||||
opts.Address = server.DefaultAddress
|
||||
}
|
||||
|
||||
@ -8,7 +8,6 @@ import (
|
||||
"github.com/micro/go-micro/broker"
|
||||
"github.com/micro/go-micro/codec"
|
||||
"github.com/micro/go-micro/registry"
|
||||
"github.com/micro/go-micro/server/debug"
|
||||
"github.com/micro/go-micro/transport"
|
||||
)
|
||||
|
||||
@ -36,9 +35,6 @@ type Options struct {
|
||||
// The router for requests
|
||||
Router Router
|
||||
|
||||
// Debug Handler which can be set by a user
|
||||
DebugHandler debug.Handler
|
||||
|
||||
// Other options for implementations of the interface
|
||||
// can be stored in a context
|
||||
Context context.Context
|
||||
@ -66,10 +62,6 @@ func newOptions(opt ...Option) Options {
|
||||
opts.Transport = transport.DefaultTransport
|
||||
}
|
||||
|
||||
if opts.DebugHandler == nil {
|
||||
opts.DebugHandler = debug.DefaultHandler
|
||||
}
|
||||
|
||||
if opts.RegisterCheck == nil {
|
||||
opts.RegisterCheck = DefaultRegisterCheck
|
||||
}
|
||||
@ -156,13 +148,6 @@ func Transport(t transport.Transport) Option {
|
||||
}
|
||||
}
|
||||
|
||||
// DebugHandler for this server
|
||||
func DebugHandler(d debug.Handler) Option {
|
||||
return func(o *Options) {
|
||||
o.DebugHandler = d
|
||||
}
|
||||
}
|
||||
|
||||
// Metadata associated with the server
|
||||
func Metadata(md map[string]string) Option {
|
||||
return func(o *Options) {
|
||||
|
||||
@ -485,7 +485,6 @@ func (s *rpcServer) Deregister() error {
|
||||
}
|
||||
|
||||
func (s *rpcServer) Start() error {
|
||||
registerDebugHandler(s)
|
||||
config := s.Options()
|
||||
|
||||
// start listening on the transport
|
||||
|
||||
@ -8,6 +8,7 @@ import (
|
||||
|
||||
"github.com/micro/go-micro/client"
|
||||
"github.com/micro/go-micro/config/cmd"
|
||||
"github.com/micro/go-micro/debug/handler"
|
||||
"github.com/micro/go-micro/metadata"
|
||||
"github.com/micro/go-micro/server"
|
||||
)
|
||||
@ -113,6 +114,14 @@ func (s *service) Stop() error {
|
||||
}
|
||||
|
||||
func (s *service) Run() error {
|
||||
// register the debug handler
|
||||
s.opts.Server.Handle(
|
||||
s.opts.Server.NewHandler(
|
||||
handler.DefaultHandler,
|
||||
server.InternalHandler(true),
|
||||
),
|
||||
)
|
||||
|
||||
if err := s.Start(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
220
service/options.go
Normal file
220
service/options.go
Normal file
@ -0,0 +1,220 @@
|
||||
package service
|
||||
|
||||
import (
|
||||
"context"
|
||||
"time"
|
||||
|
||||
"github.com/micro/go-micro/broker"
|
||||
"github.com/micro/go-micro/client"
|
||||
"github.com/micro/go-micro/registry"
|
||||
"github.com/micro/go-micro/server"
|
||||
"github.com/micro/go-micro/transport"
|
||||
)
|
||||
|
||||
type Options struct {
|
||||
Broker broker.Broker
|
||||
Client client.Client
|
||||
Server server.Server
|
||||
Registry registry.Registry
|
||||
Transport transport.Transport
|
||||
|
||||
// Before and After funcs
|
||||
BeforeStart []func() error
|
||||
BeforeStop []func() error
|
||||
AfterStart []func() error
|
||||
AfterStop []func() error
|
||||
|
||||
// Other options for implementations of the interface
|
||||
// can be stored in a context
|
||||
Context context.Context
|
||||
}
|
||||
|
||||
type Option func(*Options)
|
||||
|
||||
func newOptions(opts ...Option) Options {
|
||||
opt := Options{
|
||||
Broker: broker.DefaultBroker,
|
||||
Client: client.DefaultClient,
|
||||
Server: server.DefaultServer,
|
||||
Registry: registry.DefaultRegistry,
|
||||
Transport: transport.DefaultTransport,
|
||||
Context: context.Background(),
|
||||
}
|
||||
|
||||
for _, o := range opts {
|
||||
o(&opt)
|
||||
}
|
||||
|
||||
return opt
|
||||
}
|
||||
|
||||
func Broker(b broker.Broker) Option {
|
||||
return func(o *Options) {
|
||||
o.Broker = b
|
||||
// Update Client and Server
|
||||
o.Client.Init(client.Broker(b))
|
||||
o.Server.Init(server.Broker(b))
|
||||
}
|
||||
}
|
||||
|
||||
func Client(c client.Client) Option {
|
||||
return func(o *Options) {
|
||||
o.Client = c
|
||||
}
|
||||
}
|
||||
|
||||
// Context specifies a context for the service.
|
||||
// Can be used to signal shutdown of the service.
|
||||
// Can be used for extra option values.
|
||||
func Context(ctx context.Context) Option {
|
||||
return func(o *Options) {
|
||||
o.Context = ctx
|
||||
}
|
||||
}
|
||||
|
||||
func Server(s server.Server) Option {
|
||||
return func(o *Options) {
|
||||
o.Server = s
|
||||
}
|
||||
}
|
||||
|
||||
// Registry sets the registry for the service
|
||||
// and the underlying components
|
||||
func Registry(r registry.Registry) Option {
|
||||
return func(o *Options) {
|
||||
o.Registry = r
|
||||
// Update Client and Server
|
||||
o.Client.Init(client.Registry(r))
|
||||
o.Server.Init(server.Registry(r))
|
||||
// Update Broker
|
||||
o.Broker.Init(broker.Registry(r))
|
||||
}
|
||||
}
|
||||
|
||||
// Transport sets the transport for the service
|
||||
// and the underlying components
|
||||
func Transport(t transport.Transport) Option {
|
||||
return func(o *Options) {
|
||||
o.Transport = t
|
||||
// Update Client and Server
|
||||
o.Client.Init(client.Transport(t))
|
||||
o.Server.Init(server.Transport(t))
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience options
|
||||
|
||||
// Address sets the address of the server
|
||||
func Address(addr string) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.Address(addr))
|
||||
}
|
||||
}
|
||||
|
||||
// Name of the service
|
||||
func Name(n string) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.Name(n))
|
||||
}
|
||||
}
|
||||
|
||||
// Version of the service
|
||||
func Version(v string) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.Version(v))
|
||||
}
|
||||
}
|
||||
|
||||
// Metadata associated with the service
|
||||
func Metadata(md map[string]string) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.Metadata(md))
|
||||
}
|
||||
}
|
||||
|
||||
// RegisterTTL specifies the TTL to use when registering the service
|
||||
func RegisterTTL(t time.Duration) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.RegisterTTL(t))
|
||||
}
|
||||
}
|
||||
|
||||
// RegisterInterval specifies the interval on which to re-register
|
||||
func RegisterInterval(t time.Duration) Option {
|
||||
return func(o *Options) {
|
||||
o.Server.Init(server.RegisterInterval(t))
|
||||
}
|
||||
}
|
||||
|
||||
// WrapClient is a convenience method for wrapping a Client with
|
||||
// some middleware component. A list of wrappers can be provided.
|
||||
// Wrappers are applied in reverse order so the last is executed first.
|
||||
func WrapClient(w ...client.Wrapper) Option {
|
||||
return func(o *Options) {
|
||||
// apply in reverse
|
||||
for i := len(w); i > 0; i-- {
|
||||
o.Client = w[i-1](o.Client)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// WrapCall is a convenience method for wrapping a Client CallFunc
|
||||
func WrapCall(w ...client.CallWrapper) Option {
|
||||
return func(o *Options) {
|
||||
o.Client.Init(client.WrapCall(w...))
|
||||
}
|
||||
}
|
||||
|
||||
// WrapHandler adds a handler Wrapper to a list of options passed into the server
|
||||
func WrapHandler(w ...server.HandlerWrapper) Option {
|
||||
return func(o *Options) {
|
||||
var wrappers []server.Option
|
||||
|
||||
for _, wrap := range w {
|
||||
wrappers = append(wrappers, server.WrapHandler(wrap))
|
||||
}
|
||||
|
||||
// Init once
|
||||
o.Server.Init(wrappers...)
|
||||
}
|
||||
}
|
||||
|
||||
// WrapSubscriber adds a subscriber Wrapper to a list of options passed into the server
|
||||
func WrapSubscriber(w ...server.SubscriberWrapper) Option {
|
||||
return func(o *Options) {
|
||||
var wrappers []server.Option
|
||||
|
||||
for _, wrap := range w {
|
||||
wrappers = append(wrappers, server.WrapSubscriber(wrap))
|
||||
}
|
||||
|
||||
// Init once
|
||||
o.Server.Init(wrappers...)
|
||||
}
|
||||
}
|
||||
|
||||
// Before and Afters
|
||||
|
||||
func BeforeStart(fn func() error) Option {
|
||||
return func(o *Options) {
|
||||
o.BeforeStart = append(o.BeforeStart, fn)
|
||||
}
|
||||
}
|
||||
|
||||
func BeforeStop(fn func() error) Option {
|
||||
return func(o *Options) {
|
||||
o.BeforeStop = append(o.BeforeStop, fn)
|
||||
}
|
||||
}
|
||||
|
||||
func AfterStart(fn func() error) Option {
|
||||
return func(o *Options) {
|
||||
o.AfterStart = append(o.AfterStart, fn)
|
||||
}
|
||||
}
|
||||
|
||||
func AfterStop(fn func() error) Option {
|
||||
return func(o *Options) {
|
||||
o.AfterStop = append(o.AfterStop, fn)
|
||||
}
|
||||
}
|
||||
@ -1,2 +1,16 @@
|
||||
// Package service encapsulates the client, server and other interfaces to provide a complete micro service.
|
||||
package service
|
||||
|
||||
import (
|
||||
"github.com/micro/go-micro/client"
|
||||
"github.com/micro/go-micro/server"
|
||||
)
|
||||
|
||||
type Service interface {
|
||||
Init(...Option)
|
||||
Options() Options
|
||||
Client() client.Client
|
||||
Server() server.Server
|
||||
Run() error
|
||||
String() string
|
||||
}
|
||||
|
||||
@ -8,8 +8,8 @@ import (
|
||||
|
||||
glog "github.com/go-log/log"
|
||||
"github.com/micro/go-micro/client"
|
||||
proto "github.com/micro/go-micro/debug/proto"
|
||||
"github.com/micro/go-micro/registry/memory"
|
||||
proto "github.com/micro/go-micro/server/debug/proto"
|
||||
"github.com/micro/go-micro/util/log"
|
||||
)
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user