docker/swarmkit

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api/health.pb.go

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// Code generated by protoc-gen-gogo. DO NOT EDIT.
// source: github.com/docker/swarmkit/api/health.proto

package api

import (
    context "context"
    fmt "fmt"
    _ "github.com/gogo/protobuf/gogoproto"
    proto "github.com/gogo/protobuf/proto"
    raftselector "github.com/moby/swarmkit/v2/manager/raftselector"
    _ "github.com/moby/swarmkit/v2/protobuf/plugin"
    grpc "google.golang.org/grpc"
    codes "google.golang.org/grpc/codes"
    metadata "google.golang.org/grpc/metadata"
    peer "google.golang.org/grpc/peer"
    status "google.golang.org/grpc/status"
    io "io"
    math "math"
    math_bits "math/bits"
    reflect "reflect"
    strings "strings"
    rafttime "time"
)

// 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.GoGoProtoPackageIsVersion3 // please upgrade the proto package

type HealthCheckResponse_ServingStatus int32

const (
    HealthCheckResponse_UNKNOWN     HealthCheckResponse_ServingStatus = 0
    HealthCheckResponse_SERVING     HealthCheckResponse_ServingStatus = 1
    HealthCheckResponse_NOT_SERVING HealthCheckResponse_ServingStatus = 2
)

var HealthCheckResponse_ServingStatus_name = map[int32]string{
    0: "UNKNOWN",
    1: "SERVING",
    2: "NOT_SERVING",
}

var HealthCheckResponse_ServingStatus_value = map[string]int32{
    "UNKNOWN":     0,
    "SERVING":     1,
    "NOT_SERVING": 2,
}

func (x HealthCheckResponse_ServingStatus) String() string {
    return proto.EnumName(HealthCheckResponse_ServingStatus_name, int32(x))
}

func (HealthCheckResponse_ServingStatus) EnumDescriptor() ([]byte, []int) {
    return fileDescriptor_288522a148aed5ad, []int{1, 0}
}

type HealthCheckRequest struct {
    Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
}

func (m *HealthCheckRequest) Reset()      { *m = HealthCheckRequest{} }
func (*HealthCheckRequest) ProtoMessage() {}
func (*HealthCheckRequest) Descriptor() ([]byte, []int) {
    return fileDescriptor_288522a148aed5ad, []int{0}
}
func (m *HealthCheckRequest) XXX_Unmarshal(b []byte) error {
    return m.Unmarshal(b)
}
func (m *HealthCheckRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
    if deterministic {
        return xxx_messageInfo_HealthCheckRequest.Marshal(b, m, deterministic)
    } else {
        b = b[:cap(b)]
        n, err := m.MarshalToSizedBuffer(b)
        if err != nil {
            return nil, err
        }
        return b[:n], nil
    }
}
func (m *HealthCheckRequest) XXX_Merge(src proto.Message) {
    xxx_messageInfo_HealthCheckRequest.Merge(m, src)
}
func (m *HealthCheckRequest) XXX_Size() int {
    return m.Size()
}
func (m *HealthCheckRequest) XXX_DiscardUnknown() {
    xxx_messageInfo_HealthCheckRequest.DiscardUnknown(m)
}

var xxx_messageInfo_HealthCheckRequest proto.InternalMessageInfo

type HealthCheckResponse struct {
    Status HealthCheckResponse_ServingStatus `protobuf:"varint,1,opt,name=status,proto3,enum=docker.swarmkit.v1.HealthCheckResponse_ServingStatus" json:"status,omitempty"`
}

func (m *HealthCheckResponse) Reset()      { *m = HealthCheckResponse{} }
func (*HealthCheckResponse) ProtoMessage() {}
func (*HealthCheckResponse) Descriptor() ([]byte, []int) {
    return fileDescriptor_288522a148aed5ad, []int{1}
}
func (m *HealthCheckResponse) XXX_Unmarshal(b []byte) error {
    return m.Unmarshal(b)
}
func (m *HealthCheckResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
    if deterministic {
        return xxx_messageInfo_HealthCheckResponse.Marshal(b, m, deterministic)
    } else {
        b = b[:cap(b)]
        n, err := m.MarshalToSizedBuffer(b)
        if err != nil {
            return nil, err
        }
        return b[:n], nil
    }
}
func (m *HealthCheckResponse) XXX_Merge(src proto.Message) {
    xxx_messageInfo_HealthCheckResponse.Merge(m, src)
}
func (m *HealthCheckResponse) XXX_Size() int {
    return m.Size()
}
func (m *HealthCheckResponse) XXX_DiscardUnknown() {
    xxx_messageInfo_HealthCheckResponse.DiscardUnknown(m)
}

var xxx_messageInfo_HealthCheckResponse proto.InternalMessageInfo

func init() {
    proto.RegisterEnum("docker.swarmkit.v1.HealthCheckResponse_ServingStatus", HealthCheckResponse_ServingStatus_name, HealthCheckResponse_ServingStatus_value)
    proto.RegisterType((*HealthCheckRequest)(nil), "docker.swarmkit.v1.HealthCheckRequest")
    proto.RegisterType((*HealthCheckResponse)(nil), "docker.swarmkit.v1.HealthCheckResponse")
}

func init() {
    proto.RegisterFile("github.com/docker/swarmkit/api/health.proto", fileDescriptor_288522a148aed5ad)
}

var fileDescriptor_288522a148aed5ad = []byte{
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    0xc9, 0xe8, 0xd3, 0x02, 0x0c, 0x02, 0x00, 0x00,
}

type authenticatedWrapperHealthServer struct {
    local     HealthServer
    authorize func(context.Context, []string) error
}

func NewAuthenticatedWrapperHealthServer(local HealthServer, authorize func(context.Context, []string) error) HealthServer {
    return &authenticatedWrapperHealthServer{
        local:     local,
        authorize: authorize,
    }
}

func (p *authenticatedWrapperHealthServer) Check(ctx context.Context, r *HealthCheckRequest) (*HealthCheckResponse, error) {

    if err := p.authorize(ctx, []string{"swarm-manager"}); err != nil {
        return nil, err
    }
    return p.local.Check(ctx, r)
}

func (m *HealthCheckRequest) Copy() *HealthCheckRequest {
    if m == nil {
        return nil
    }
    o := &HealthCheckRequest{}
    o.CopyFrom(m)
    return o
}

func (m *HealthCheckRequest) CopyFrom(src interface{}) {

    o := src.(*HealthCheckRequest)
    *m = *o
}

func (m *HealthCheckResponse) Copy() *HealthCheckResponse {
    if m == nil {
        return nil
    }
    o := &HealthCheckResponse{}
    o.CopyFrom(m)
    return o
}

func (m *HealthCheckResponse) CopyFrom(src interface{}) {

    o := src.(*HealthCheckResponse)
    *m = *o
}

// 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

// HealthClient is the client API for Health service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
type HealthClient interface {
    Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error)
}

type healthClient struct {
    cc *grpc.ClientConn
}

func NewHealthClient(cc *grpc.ClientConn) HealthClient {
    return &healthClient{cc}
}

func (c *healthClient) Check(ctx context.Context, in *HealthCheckRequest, opts ...grpc.CallOption) (*HealthCheckResponse, error) {
    out := new(HealthCheckResponse)
    err := c.cc.Invoke(ctx, "/docker.swarmkit.v1.Health/Check", in, out, opts...)
    if err != nil {
        return nil, err
    }
    return out, nil
}

// HealthServer is the server API for Health service.
type HealthServer interface {
    Check(context.Context, *HealthCheckRequest) (*HealthCheckResponse, error)
}

// UnimplementedHealthServer can be embedded to have forward compatible implementations.
type UnimplementedHealthServer struct {
}

func (*UnimplementedHealthServer) Check(ctx context.Context, req *HealthCheckRequest) (*HealthCheckResponse, error) {
    return nil, status.Errorf(codes.Unimplemented, "method Check not implemented")
}

func RegisterHealthServer(s *grpc.Server, srv HealthServer) {
    s.RegisterService(&_Health_serviceDesc, srv)
}

func _Health_Check_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
    in := new(HealthCheckRequest)
    if err := dec(in); err != nil {
        return nil, err
    }
    if interceptor == nil {
        return srv.(HealthServer).Check(ctx, in)
    }
    info := &grpc.UnaryServerInfo{
        Server:     srv,
        FullMethod: "/docker.swarmkit.v1.Health/Check",
    }
    handler := func(ctx context.Context, req interface{}) (interface{}, error) {
        return srv.(HealthServer).Check(ctx, req.(*HealthCheckRequest))
    }
    return interceptor(ctx, in, info, handler)
}

var _Health_serviceDesc = grpc.ServiceDesc{
    ServiceName: "docker.swarmkit.v1.Health",
    HandlerType: (*HealthServer)(nil),
    Methods: []grpc.MethodDesc{
        {
            MethodName: "Check",
            Handler:    _Health_Check_Handler,
        },
    },
    Streams:  []grpc.StreamDesc{},
    Metadata: "github.com/docker/swarmkit/api/health.proto",
}

func (m *HealthCheckRequest) Marshal() (dAtA []byte, err error) {
    size := m.Size()
    dAtA = make([]byte, size)
    n, err := m.MarshalToSizedBuffer(dAtA[:size])
    if err != nil {
        return nil, err
    }
    return dAtA[:n], nil
}

func (m *HealthCheckRequest) MarshalTo(dAtA []byte) (int, error) {
    size := m.Size()
    return m.MarshalToSizedBuffer(dAtA[:size])
}

func (m *HealthCheckRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
    i := len(dAtA)
    _ = i
    var l int
    _ = l
    if len(m.Service) > 0 {
        i -= len(m.Service)
        copy(dAtA[i:], m.Service)
        i = encodeVarintHealth(dAtA, i, uint64(len(m.Service)))
        i--
        dAtA[i] = 0xa
    }
    return len(dAtA) - i, nil
}

func (m *HealthCheckResponse) Marshal() (dAtA []byte, err error) {
    size := m.Size()
    dAtA = make([]byte, size)
    n, err := m.MarshalToSizedBuffer(dAtA[:size])
    if err != nil {
        return nil, err
    }
    return dAtA[:n], nil
}

func (m *HealthCheckResponse) MarshalTo(dAtA []byte) (int, error) {
    size := m.Size()
    return m.MarshalToSizedBuffer(dAtA[:size])
}

func (m *HealthCheckResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) {
    i := len(dAtA)
    _ = i
    var l int
    _ = l
    if m.Status != 0 {
        i = encodeVarintHealth(dAtA, i, uint64(m.Status))
        i--
        dAtA[i] = 0x8
    }
    return len(dAtA) - i, nil
}

func encodeVarintHealth(dAtA []byte, offset int, v uint64) int {
    offset -= sovHealth(v)
    base := offset
    for v >= 1<<7 {
        dAtA[offset] = uint8(v&0x7f | 0x80)
        v >>= 7
        offset++
    }
    dAtA[offset] = uint8(v)
    return base
}

type raftProxyHealthServer struct {
    local                       HealthServer
    connSelector                raftselector.ConnProvider
    localCtxMods, remoteCtxMods []func(context.Context) (context.Context, error)
}

func NewRaftProxyHealthServer(local HealthServer, connSelector raftselector.ConnProvider, localCtxMod, remoteCtxMod func(context.Context) (context.Context, error)) HealthServer {
    redirectChecker := func(ctx context.Context) (context.Context, error) {
        p, ok := peer.FromContext(ctx)
        if !ok {
            return ctx, status.Errorf(codes.InvalidArgument, "remote addr is not found in context")
        }
        addr := p.Addr.String()
        md, ok := metadata.FromIncomingContext(ctx)
        if ok && len(md["redirect"]) != 0 {
            return ctx, status.Errorf(codes.ResourceExhausted, "more than one redirect to leader from: %s", md["redirect"])
        }
        if !ok {
            md = metadata.New(map[string]string{})
        }
        md["redirect"] = append(md["redirect"], addr)
        return metadata.NewOutgoingContext(ctx, md), nil
    }
    remoteMods := []func(context.Context) (context.Context, error){redirectChecker}
    remoteMods = append(remoteMods, remoteCtxMod)

    var localMods []func(context.Context) (context.Context, error)
    if localCtxMod != nil {
        localMods = []func(context.Context) (context.Context, error){localCtxMod}
    }

    return &raftProxyHealthServer{
        local:         local,
        connSelector:  connSelector,
        localCtxMods:  localMods,
        remoteCtxMods: remoteMods,
    }
}
func (p *raftProxyHealthServer) runCtxMods(ctx context.Context, ctxMods []func(context.Context) (context.Context, error)) (context.Context, error) {
    var err error
    for _, mod := range ctxMods {
        ctx, err = mod(ctx)
        if err != nil {
            return ctx, err
        }
    }
    return ctx, nil
}
func (p *raftProxyHealthServer) pollNewLeaderConn(ctx context.Context) (*grpc.ClientConn, error) {
    ticker := rafttime.NewTicker(500 * rafttime.Millisecond)
    defer ticker.Stop()
    for {
        select {
        case <-ticker.C:
            conn, err := p.connSelector.LeaderConn(ctx)
            if err != nil {
                return nil, err
            }

            client := NewHealthClient(conn)

            resp, err := client.Check(ctx, &HealthCheckRequest{Service: "Raft"})
            if err != nil || resp.Status != HealthCheckResponse_SERVING {
                continue
            }
            return conn, nil
        case <-ctx.Done():
            return nil, ctx.Err()
        }
    }
}

func (p *raftProxyHealthServer) Check(ctx context.Context, r *HealthCheckRequest) (*HealthCheckResponse, error) {

    conn, err := p.connSelector.LeaderConn(ctx)
    if err != nil {
        if err == raftselector.ErrIsLeader {
            ctx, err = p.runCtxMods(ctx, p.localCtxMods)
            if err != nil {
                return nil, err
            }
            return p.local.Check(ctx, r)
        }
        return nil, err
    }
    modCtx, err := p.runCtxMods(ctx, p.remoteCtxMods)
    if err != nil {
        return nil, err
    }

    resp, err := NewHealthClient(conn).Check(modCtx, r)
    if err != nil {
        if !strings.Contains(err.Error(), "is closing") && !strings.Contains(err.Error(), "the connection is unavailable") && !strings.Contains(err.Error(), "connection error") {
            return resp, err
        }
        conn, err := p.pollNewLeaderConn(ctx)
        if err != nil {
            if err == raftselector.ErrIsLeader {
                return p.local.Check(ctx, r)
            }
            return nil, err
        }
        return NewHealthClient(conn).Check(modCtx, r)
    }
    return resp, err
}

func (m *HealthCheckRequest) Size() (n int) {
    if m == nil {
        return 0
    }
    var l int
    _ = l
    l = len(m.Service)
    if l > 0 {
        n += 1 + l + sovHealth(uint64(l))
    }
    return n
}

func (m *HealthCheckResponse) Size() (n int) {
    if m == nil {
        return 0
    }
    var l int
    _ = l
    if m.Status != 0 {
        n += 1 + sovHealth(uint64(m.Status))
    }
    return n
}

func sovHealth(x uint64) (n int) {
    return (math_bits.Len64(x|1) + 6) / 7
}
func sozHealth(x uint64) (n int) {
    return sovHealth(uint64((x << 1) ^ uint64((int64(x) >> 63))))
}
func (this *HealthCheckRequest) String() string {
    if this == nil {
        return "nil"
    }
    s := strings.Join([]string{`&HealthCheckRequest{`,
        `Service:` + fmt.Sprintf("%v", this.Service) + `,`,
        `}`,
    }, "")
    return s
}
func (this *HealthCheckResponse) String() string {
    if this == nil {
        return "nil"
    }
    s := strings.Join([]string{`&HealthCheckResponse{`,
        `Status:` + fmt.Sprintf("%v", this.Status) + `,`,
        `}`,
    }, "")
    return s
}
func valueToStringHealth(v interface{}) string {
    rv := reflect.ValueOf(v)
    if rv.IsNil() {
        return "nil"
    }
    pv := reflect.Indirect(rv).Interface()
    return fmt.Sprintf("*%v", pv)
}
func (m *HealthCheckRequest) Unmarshal(dAtA []byte) error {
    l := len(dAtA)
    iNdEx := 0
    for iNdEx < l {
        preIndex := iNdEx
        var wire uint64
        for shift := uint(0); ; shift += 7 {
            if shift >= 64 {
                return ErrIntOverflowHealth
            }
            if iNdEx >= l {
                return io.ErrUnexpectedEOF
            }
            b := dAtA[iNdEx]
            iNdEx++
            wire |= uint64(b&0x7F) << shift
            if b < 0x80 {
                break
            }
        }
        fieldNum := int32(wire >> 3)
        wireType := int(wire & 0x7)
        if wireType == 4 {
            return fmt.Errorf("proto: HealthCheckRequest: wiretype end group for non-group")
        }
        if fieldNum <= 0 {
            return fmt.Errorf("proto: HealthCheckRequest: illegal tag %d (wire type %d)", fieldNum, wire)
        }
        switch fieldNum {
        case 1:
            if wireType != 2 {
                return fmt.Errorf("proto: wrong wireType = %d for field Service", wireType)
            }
            var stringLen uint64
            for shift := uint(0); ; shift += 7 {
                if shift >= 64 {
                    return ErrIntOverflowHealth
                }
                if iNdEx >= l {
                    return io.ErrUnexpectedEOF
                }
                b := dAtA[iNdEx]
                iNdEx++
                stringLen |= uint64(b&0x7F) << shift
                if b < 0x80 {
                    break
                }
            }
            intStringLen := int(stringLen)
            if intStringLen < 0 {
                return ErrInvalidLengthHealth
            }
            postIndex := iNdEx + intStringLen
            if postIndex < 0 {
                return ErrInvalidLengthHealth
            }
            if postIndex > l {
                return io.ErrUnexpectedEOF
            }
            m.Service = string(dAtA[iNdEx:postIndex])
            iNdEx = postIndex
        default:
            iNdEx = preIndex
            skippy, err := skipHealth(dAtA[iNdEx:])
            if err != nil {
                return err
            }
            if (skippy < 0) || (iNdEx+skippy) < 0 {
                return ErrInvalidLengthHealth
            }
            if (iNdEx + skippy) > l {
                return io.ErrUnexpectedEOF
            }
            iNdEx += skippy
        }
    }

    if iNdEx > l {
        return io.ErrUnexpectedEOF
    }
    return nil
}
func (m *HealthCheckResponse) Unmarshal(dAtA []byte) error {
    l := len(dAtA)
    iNdEx := 0
    for iNdEx < l {
        preIndex := iNdEx
        var wire uint64
        for shift := uint(0); ; shift += 7 {
            if shift >= 64 {
                return ErrIntOverflowHealth
            }
            if iNdEx >= l {
                return io.ErrUnexpectedEOF
            }
            b := dAtA[iNdEx]
            iNdEx++
            wire |= uint64(b&0x7F) << shift
            if b < 0x80 {
                break
            }
        }
        fieldNum := int32(wire >> 3)
        wireType := int(wire & 0x7)
        if wireType == 4 {
            return fmt.Errorf("proto: HealthCheckResponse: wiretype end group for non-group")
        }
        if fieldNum <= 0 {
            return fmt.Errorf("proto: HealthCheckResponse: illegal tag %d (wire type %d)", fieldNum, wire)
        }
        switch fieldNum {
        case 1:
            if wireType != 0 {
                return fmt.Errorf("proto: wrong wireType = %d for field Status", wireType)
            }
            m.Status = 0
            for shift := uint(0); ; shift += 7 {
                if shift >= 64 {
                    return ErrIntOverflowHealth
                }
                if iNdEx >= l {
                    return io.ErrUnexpectedEOF
                }
                b := dAtA[iNdEx]
                iNdEx++
                m.Status |= HealthCheckResponse_ServingStatus(b&0x7F) << shift
                if b < 0x80 {
                    break
                }
            }
        default:
            iNdEx = preIndex
            skippy, err := skipHealth(dAtA[iNdEx:])
            if err != nil {
                return err
            }
            if (skippy < 0) || (iNdEx+skippy) < 0 {
                return ErrInvalidLengthHealth
            }
            if (iNdEx + skippy) > l {
                return io.ErrUnexpectedEOF
            }
            iNdEx += skippy
        }
    }

    if iNdEx > l {
        return io.ErrUnexpectedEOF
    }
    return nil
}
func skipHealth(dAtA []byte) (n int, err error) {
    l := len(dAtA)
    iNdEx := 0
    depth := 0
    for iNdEx < l {
        var wire uint64
        for shift := uint(0); ; shift += 7 {
            if shift >= 64 {
                return 0, ErrIntOverflowHealth
            }
            if iNdEx >= l {
                return 0, io.ErrUnexpectedEOF
            }
            b := dAtA[iNdEx]
            iNdEx++
            wire |= (uint64(b) & 0x7F) << shift
            if b < 0x80 {
                break
            }
        }
        wireType := int(wire & 0x7)
        switch wireType {
        case 0:
            for shift := uint(0); ; shift += 7 {
                if shift >= 64 {
                    return 0, ErrIntOverflowHealth
                }
                if iNdEx >= l {
                    return 0, io.ErrUnexpectedEOF
                }
                iNdEx++
                if dAtA[iNdEx-1] < 0x80 {
                    break
                }
            }
        case 1:
            iNdEx += 8
        case 2:
            var length int
            for shift := uint(0); ; shift += 7 {
                if shift >= 64 {
                    return 0, ErrIntOverflowHealth
                }
                if iNdEx >= l {
                    return 0, io.ErrUnexpectedEOF
                }
                b := dAtA[iNdEx]
                iNdEx++
                length |= (int(b) & 0x7F) << shift
                if b < 0x80 {
                    break
                }
            }
            if length < 0 {
                return 0, ErrInvalidLengthHealth
            }
            iNdEx += length
        case 3:
            depth++
        case 4:
            if depth == 0 {
                return 0, ErrUnexpectedEndOfGroupHealth
            }
            depth--
        case 5:
            iNdEx += 4
        default:
            return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
        }
        if iNdEx < 0 {
            return 0, ErrInvalidLengthHealth
        }
        if depth == 0 {
            return iNdEx, nil
        }
    }
    return 0, io.ErrUnexpectedEOF
}

var (
    ErrInvalidLengthHealth        = fmt.Errorf("proto: negative length found during unmarshaling")
    ErrIntOverflowHealth          = fmt.Errorf("proto: integer overflow")
    ErrUnexpectedEndOfGroupHealth = fmt.Errorf("proto: unexpected end of group")
)