First changes for unix domain sockets upstreams

Start making structure changes to support unix domain socket address for upstreams

	upstreams = [
	  {
	    destination_name = "echo-service"
	    local_bind_socket_path = "/tmp/upstream.sock"
	    config {
	      passive_health_check {
		interval = "10s"
		max_failures = 42
	      }
	    }
	  }

Signed-off-by: Mark Anderson <manderson@hashicorp.com>
This commit is contained in:
Mark Anderson 2021-03-26 12:43:57 -07:00
parent d7f7d9aabc
commit 1d9a7df5d4
7 changed files with 221 additions and 76 deletions

View file

@ -1706,6 +1706,8 @@ func (b *builder) upstreamsVal(v []Upstream) structs.Upstreams {
Datacenter: stringVal(u.Datacenter),
LocalBindAddress: stringVal(u.LocalBindAddress),
LocalBindPort: intVal(u.LocalBindPort),
LocalBindSocketPath: stringVal(u.LocalBindSocketPath),
LocalBindSocketMode: uint32Val(u.LocalBindSocketMode),
Config: u.Config,
MeshGateway: b.meshGatewayConfVal(u.MeshGateway),
}

View file

@ -503,14 +503,21 @@ type Upstream struct {
// datacenter.
Datacenter *string `mapstructure:"datacenter"`
// It would be worth thinking about a separate structure for these four items,
// unifying under address as something like "unix:/tmp/foo", "tcp:localhost:80" could make sense
// LocalBindAddress is the ip address a side-car proxy should listen on for
// traffic destined for this upstream service. Default if empty is 127.0.0.1.
// traffic destined for this upstream service. Default if empty and local bind socket
// is not present is 127.0.0.1.
LocalBindAddress *string `mapstructure:"local_bind_address"`
// LocalBindPort is the ip address a side-car proxy should listen on for traffic
// destined for this upstream service. Required.
LocalBindPort *int `mapstructure:"local_bind_port"`
// These are exclusive with LocalBindAddress/LocalBindPort
LocalBindSocketPath *string `mapstructure:"local_bind_socket_path"`
LocalBindSocketMode *uint32 `mapstructure:"local_bind_socket_mode"`
// Config is an opaque config that is specific to the proxy process being run.
// It can be used to pass arbitrary configuration for this specific upstream
// to the proxy.

View file

@ -3,6 +3,7 @@ package structs
import (
"encoding/json"
"fmt"
"net"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/lib"
@ -319,7 +320,11 @@ type Upstream struct {
// LocalBindPort is the ip address a side-car proxy should listen on for traffic
// destined for this upstream service. Required.
LocalBindPort int `alias:"local_bind_port"`
LocalBindPort int `json:",omitempty" alias:"local_bind_port"`
// These are exclusive with LocalBindAddress/LocalBindPort
LocalBindSocketPath string `json:",omitempty" alias:"local_bind_socket_path"`
LocalBindSocketMode uint32 `json:",omitempty" alias:"local_bind_socket_mode"`
// Config is an opaque config that is specific to the proxy process being run.
// It can be used to pass arbitrary configuration for this specific upstream
@ -349,6 +354,9 @@ func (t *Upstream) UnmarshalJSON(data []byte) (err error) {
LocalBindAddressSnake string `json:"local_bind_address"`
LocalBindPortSnake int `json:"local_bind_port"`
LocalBindSocketPathSnake string `json:"local_bind_socket_path"`
LocalBindSocketModeSnake uint32 `json:"local_bind_socket_mode"`
MeshGatewaySnake MeshGatewayConfig `json:"mesh_gateway"`
*Alias
@ -373,6 +381,12 @@ func (t *Upstream) UnmarshalJSON(data []byte) (err error) {
if t.LocalBindPort == 0 {
t.LocalBindPort = aux.LocalBindPortSnake
}
if t.LocalBindSocketPath == "" {
t.LocalBindSocketPath = aux.LocalBindSocketPathSnake
}
if t.LocalBindSocketMode == 0 {
t.LocalBindSocketMode = aux.LocalBindSocketModeSnake
}
if t.MeshGateway.Mode == "" {
t.MeshGateway.Mode = aux.MeshGatewaySnake.Mode
}
@ -415,6 +429,8 @@ func (u *Upstream) ToAPI() api.Upstream {
Datacenter: u.Datacenter,
LocalBindAddress: u.LocalBindAddress,
LocalBindPort: u.LocalBindPort,
LocalBindSocketPath: u.LocalBindSocketPath,
LocalBindSocketMode: u.LocalBindSocketMode,
Config: u.Config,
MeshGateway: u.MeshGateway.ToAPI(),
}
@ -435,6 +451,26 @@ func (u *Upstream) ToKey() UpstreamKey {
}
}
func (u Upstream) HasLocalPortOrSocket() bool {
return (u.LocalBindPort != 0 || u.LocalBindSocketPath != "")
}
func (u Upstream) UpstreamIsUnixSocket() bool {
return (u.LocalBindPort == 0 && u.LocalBindAddress == "" && u.LocalBindSocketPath != "")
}
func (u Upstream) UpstreamAddressToString() string {
if u.UpstreamIsUnixSocket() {
return u.LocalBindSocketPath
}
addr := u.LocalBindAddress
if addr == "" {
addr = "127.0.0.1"
}
return net.JoinHostPort(addr, fmt.Sprintf("%d", u.LocalBindPort))
}
type UpstreamKey struct {
DestinationType string
DestinationName string
@ -466,6 +502,8 @@ func UpstreamFromAPI(u api.Upstream) Upstream {
Datacenter: u.Datacenter,
LocalBindAddress: u.LocalBindAddress,
LocalBindPort: u.LocalBindPort,
LocalBindSocketPath: u.LocalBindSocketPath,
LocalBindSocketMode: u.LocalBindSocketMode,
Config: u.Config,
}
}

View file

@ -6,7 +6,6 @@ import (
"encoding/json"
"fmt"
"math/rand"
"net"
"reflect"
"regexp"
"sort"
@ -811,7 +810,7 @@ type Services map[string][]string
type ServiceNode struct {
ID types.NodeID
Node string
Address string
Address string // TODO markan; this is slippery when we have sockets; the addr:path pattern falls apart.
Datacenter string
TaggedAddresses map[string]string
NodeMeta map[string]string
@ -974,11 +973,13 @@ const (
)
// Type to hold a address and port of a service
// TODO markan, think about this around sockets
type ServiceAddress struct {
Address string
Port int
}
// TODO markan, think about this around sockets
func (a ServiceAddress) ToAPIServiceAddress() api.ServiceAddress {
return api.ServiceAddress{Address: a.Address, Port: a.Port}
}

View file

@ -407,6 +407,8 @@ type Upstream struct {
Datacenter string `json:",omitempty"`
LocalBindAddress string `json:",omitempty"`
LocalBindPort int `json:",omitempty"`
LocalBindSocketPath string `json:",omitempty"`
LocalBindSocketMode uint32 `json:",omitempty"`
Config map[string]interface{} `json:",omitempty" bexpr:"-"`
MeshGateway MeshGatewayConfig `json:",omitempty"`
CentrallyConfigured bool `json:",omitempty" bexpr:"-"`

View file

@ -154,6 +154,9 @@ type Upstream struct {
// CentrallyConfigured indicates whether the upstream was defined in a proxy
// instance registration or whether it was generated from a config entry.
CentrallyConfigured bool `protobuf:"varint,9,opt,name=CentrallyConfigured,proto3" json:"CentrallyConfigured,omitempty"`
// LocalBindSocketPath is the socket to create to connect to the upstream service
LocalBindSocketPath string `protobuf:"bytes,10,opt,name=LocalBindSocketPath,proto3" json:"LocalBindSocketPath,omitempty"`
LocalBindSocketMode string `protobuf:"bytes,11,opt,name=LocalBindSocketMode,proto3" json:"LocalBindSocketMode,omitempty"`
}
func (m *Upstream) Reset() { *m = Upstream{} }
@ -608,78 +611,80 @@ func init() {
func init() { proto.RegisterFile("proto/pbservice/service.proto", fileDescriptor_cbb99233b75fb80b) }
var fileDescriptor_cbb99233b75fb80b = []byte{
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}
func (m *ConnectProxyConfig) Marshal() (dAtA []byte, err error) {
@ -814,6 +819,20 @@ func (m *Upstream) MarshalToSizedBuffer(dAtA []byte) (int, error) {
_ = i
var l int
_ = l
if len(m.LocalBindSocketMode) > 0 {
i -= len(m.LocalBindSocketMode)
copy(dAtA[i:], m.LocalBindSocketMode)
i = encodeVarintService(dAtA, i, uint64(len(m.LocalBindSocketMode)))
i--
dAtA[i] = 0x5a
}
if len(m.LocalBindSocketPath) > 0 {
i -= len(m.LocalBindSocketPath)
copy(dAtA[i:], m.LocalBindSocketPath)
i = encodeVarintService(dAtA, i, uint64(len(m.LocalBindSocketPath)))
i--
dAtA[i] = 0x52
}
if m.CentrallyConfigured {
i--
if m.CentrallyConfigured {
@ -1456,6 +1475,14 @@ func (m *Upstream) Size() (n int) {
if m.CentrallyConfigured {
n += 2
}
l = len(m.LocalBindSocketPath)
if l > 0 {
n += 1 + l + sovService(uint64(l))
}
l = len(m.LocalBindSocketMode)
if l > 0 {
n += 1 + l + sovService(uint64(l))
}
return n
}
@ -2327,6 +2354,70 @@ func (m *Upstream) Unmarshal(dAtA []byte) error {
}
}
m.CentrallyConfigured = bool(v != 0)
case 10:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field LocalBindSocketPath", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
}
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 ErrInvalidLengthService
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthService
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.LocalBindSocketPath = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 11:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field LocalBindSocketMode", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
}
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 ErrInvalidLengthService
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthService
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.LocalBindSocketMode = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipService(dAtA[iNdEx:])

View file

@ -127,6 +127,10 @@ message Upstream {
// CentrallyConfigured indicates whether the upstream was defined in a proxy
// instance registration or whether it was generated from a config entry.
bool CentrallyConfigured = 9;
// LocalBindSocketPath is the socket to create to connect to the upstream service
string LocalBindSocketPath = 10;
string LocalBindSocketMode = 11;
}
// ServiceConnect are the shared Connect settings between all service