envoyds

package module
v0.0.0-...-c6eb82e Latest Latest
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 Go to latest Published: May 7, 2017 License: MIT Imports: 18 Imported by: 0

README

envoyds

ykevinc/envoyds is a Golang implementation of Lyft/Discovery, a discovery service provides the REST interface for querying and registering service in microservice infrastructure. It is to be pluginable as the service discovery solution for Envoy.

Discovery service settings

The settings are controlled by envoyds.conf file. To loaded a different file than one from the current workspace, provide the file path as first command line argument. (i.e. envoyds [<optional-config-path>])

"envoyds.environment" = "dev"

"envoyds.port" = 8000

"envoyds.redis.host" = "localhost"

"envoyds.redis.port" = 6379

How to build

  1. glide is used to manage Go dependencies. Please make sure glide is in your PATH before you attempt to build.
  2. cd envoyds
  3. go build envoyds.go

How to run

  1. Redis is running
  2. envoyds [<optional-config-path>]

API example usages

curl -X POST "http://localhost:8000/v1/registration/test?ip=123.124.125.126&service_repo_name=v&port=100&revision=44&tags={"az":"c"}"

curl -X GET "http://localhost:8000/v1/registration/test"

curl -X DELETE "http://localhost:8000/v1/registration/test/123.124.125.126"

curl -X DELETE "http://localhost:8000/v1/registration/test/123.124.125.126/100"

curl -X POST "http://localhost:8000/v1/loadbalancing/test/123.124.125.126/100?load_balancing_weight=3"

Improvements to original lyft/discovery

  1. It allows unique ip/port registration/removal issues/22
  2. Second index querying is done by querying indexes instead of whole list scan query_secondary_index

Integration tests

  1. cd envoyds
  2. go test envoyds_test.go

Reference

https://github.com/lyft/discovery

https://github.com/lyft/envoy

https://lyft.github.io/envoy/docs/intro/arch_overview/service_discovery.html

Documentation

Overview

Package envoyds is a generated protocol buffer package.

It is generated from these files: 

pmessage.proto

It has these top-level messages: 

ServiceGetResponse
ServicePostRequest
ServiceUpdateLoadBalancingRequest
Host
Tags

Index

Constants

View Source 
const (
	CONTEXT_PARAMS        = "CONTEXT_PARAMS"
	CONTEXT_SERVICE       = "CONTEXT_SERVICE"
	CONTEXT_MARSHALER     = "CONTEXT_MARSHALER"
	PATH_VARIABLE_SERVICE = "service"
	PATH_VARIABLE_IP      = "ip_address"
	PATH_VARIABLE_PORT    = "port"
	HOST_TTL              = time.Minute * 10
)
View Source 
const (
	REDIS_V1_PREFIX    = "EYV1"
	REDIS_SERVICE_NAME = "SERVICENAME"
	REDIS_REPO_NAME    = "REPONAME"
	REDIS_FIELD        = "META"
	REDIS_DELIMITER    = ":"
	REDIS_BATCH_SIZE   = 10
)
View Source 
const CLIENT_PERIOD = time.Second * 20

Variables

This section is empty.

Functions

func NewEnvoyDS 

func NewEnvoyDS(env string, redisHost string, redisPort int) (*service, error)

func NewRouter 

func NewRouter(env, redisHost string, redisPort int) (*regexpRouter, error)

func ReadConfig 

func ReadConfig(configPath string) *config

Types

type DsClient 

type DsClient struct {
	// contains filtered or unexported fields
}

func NewClient 

func NewClient(dsIp string, dsPort int, ownIp string, ownPort int, service string) *DsClient

func (*DsClient) Register 

func (c *DsClient) Register()

func (*DsClient) Start 

func (c *DsClient) Start()

func (*DsClient) Stop 

func (c *DsClient) Stop()

type Host 

type Host struct {
	IpAddress       string `protobuf:"bytes,1,opt,name=ip_address,json=ipAddress" json:"ip_address,omitempty"`
	LastCheckIn     string `protobuf:"bytes,2,opt,name=last_check_in,json=lastCheckIn" json:"last_check_in,omitempty"`
	Port            int32  `protobuf:"varint,3,opt,name=port" json:"port,omitempty"`
	Revision        string `protobuf:"bytes,4,opt,name=revision" json:"revision,omitempty"`
	Service         string `protobuf:"bytes,5,opt,name=service" json:"service,omitempty"`
	ServiceRepoName string `protobuf:"bytes,6,opt,name=service_repo_name,json=serviceRepoName" json:"service_repo_name,omitempty"`
	Tags            *Tags  `protobuf:"bytes,7,opt,name=tags" json:"tags,omitempty"`
}

func (*Host) Descriptor 

func (*Host) Descriptor() ([]byte, []int)

func (*Host) GetIpAddress 

func (m *Host) GetIpAddress() string

func (*Host) GetLastCheckIn 

func (m *Host) GetLastCheckIn() string

func (*Host) GetPort 

func (m *Host) GetPort() int32

func (*Host) GetRevision 

func (m *Host) GetRevision() string

func (*Host) GetService 

func (m *Host) GetService() string

func (*Host) GetServiceRepoName 

func (m *Host) GetServiceRepoName() string

func (*Host) GetTags 

func (m *Host) GetTags() *Tags

func (*Host) ProtoMessage 

func (*Host) ProtoMessage()

func (*Host) Reset 

func (m *Host) Reset()

func (*Host) String 

func (m *Host) String() string

type ServiceGetResponse 

type ServiceGetResponse struct {
	Env     string  `protobuf:"bytes,1,opt,name=env" json:"env,omitempty"`
	Hosts   []*Host `protobuf:"bytes,2,rep,name=hosts" json:"hosts,omitempty"`
	Service string  `protobuf:"bytes,3,opt,name=service" json:"service,omitempty"`
}

func (*ServiceGetResponse) Descriptor 

func (*ServiceGetResponse) Descriptor() ([]byte, []int)

func (*ServiceGetResponse) GetEnv 

func (m *ServiceGetResponse) GetEnv() string

func (*ServiceGetResponse) GetHosts 

func (m *ServiceGetResponse) GetHosts() []*Host

func (*ServiceGetResponse) GetService 

func (m *ServiceGetResponse) GetService() string

func (*ServiceGetResponse) ProtoMessage 

func (*ServiceGetResponse) ProtoMessage()

func (*ServiceGetResponse) Reset 

func (m *ServiceGetResponse) Reset()

func (*ServiceGetResponse) String 

func (m *ServiceGetResponse) String() string

type ServicePostRequest 

type ServicePostRequest struct {
	Ip              string `protobuf:"bytes,1,opt,name=ip" json:"ip,omitempty"`
	ServiceRepoName string `protobuf:"bytes,2,opt,name=service_repo_name,json=serviceRepoName" json:"service_repo_name,omitempty"`
	Port            int32  `protobuf:"varint,3,opt,name=port" json:"port,omitempty"`
	Revision        string `protobuf:"bytes,4,opt,name=revision" json:"revision,omitempty"`
	Tags            *Tags  `protobuf:"bytes,5,opt,name=tags" json:"tags,omitempty"`
}

func (*ServicePostRequest) Descriptor 

func (*ServicePostRequest) Descriptor() ([]byte, []int)

func (*ServicePostRequest) FieldMap 

func (r *ServicePostRequest) FieldMap(req *http.Request) binding.FieldMap

func (*ServicePostRequest) GetIp 

func (m *ServicePostRequest) GetIp() string

func (*ServicePostRequest) GetPort 

func (m *ServicePostRequest) GetPort() int32

func (*ServicePostRequest) GetRevision 

func (m *ServicePostRequest) GetRevision() string

func (*ServicePostRequest) GetServiceRepoName 

func (m *ServicePostRequest) GetServiceRepoName() string

func (*ServicePostRequest) GetTags 

func (m *ServicePostRequest) GetTags() *Tags

func (*ServicePostRequest) ProtoMessage 

func (*ServicePostRequest) ProtoMessage()

func (*ServicePostRequest) Reset 

func (m *ServicePostRequest) Reset()

func (*ServicePostRequest) String 

func (m *ServicePostRequest) String() string

type ServiceUpdateLoadBalancingRequest 

type ServiceUpdateLoadBalancingRequest struct {
	LoadBalancingWeight int32 `protobuf:"varint,1,opt,name=load_balancing_weight,json=loadBalancingWeight" json:"load_balancing_weight,omitempty"`
}

func (*ServiceUpdateLoadBalancingRequest) Descriptor 

func (*ServiceUpdateLoadBalancingRequest) Descriptor() ([]byte, []int)

func (*ServiceUpdateLoadBalancingRequest) FieldMap 

func (r *ServiceUpdateLoadBalancingRequest) FieldMap(req *http.Request) binding.FieldMap

func (*ServiceUpdateLoadBalancingRequest) GetLoadBalancingWeight 

func (m *ServiceUpdateLoadBalancingRequest) GetLoadBalancingWeight() int32

func (*ServiceUpdateLoadBalancingRequest) ProtoMessage 

func (*ServiceUpdateLoadBalancingRequest) ProtoMessage()

func (*ServiceUpdateLoadBalancingRequest) Reset 

func (m *ServiceUpdateLoadBalancingRequest) Reset()

func (*ServiceUpdateLoadBalancingRequest) String 

func (m *ServiceUpdateLoadBalancingRequest) String() string

type Tags 

type Tags struct {
	Az                  string `protobuf:"bytes,1,opt,name=az" json:"az,omitempty"`
	Region              string `protobuf:"bytes,2,opt,name=region" json:"region,omitempty"`
	InstanceId          string `protobuf:"bytes,3,opt,name=instance_id,json=instanceId" json:"instance_id,omitempty"`
	Canary              bool   `protobuf:"varint,4,opt,name=canary" json:"canary,omitempty"`
	LoadBalancingWeight int32  `protobuf:"varint,5,opt,name=load_balancing_weight,json=loadBalancingWeight" json:"load_balancing_weight,omitempty"`
}

func (*Tags) Descriptor 

func (*Tags) Descriptor() ([]byte, []int)

func (*Tags) GetAz 

func (m *Tags) GetAz() string

func (*Tags) GetCanary 

func (m *Tags) GetCanary() bool

func (*Tags) GetInstanceId 

func (m *Tags) GetInstanceId() string

func (*Tags) GetLoadBalancingWeight 

func (m *Tags) GetLoadBalancingWeight() int32

func (*Tags) GetRegion 

func (m *Tags) GetRegion() string

func (*Tags) ProtoMessage 

func (*Tags) ProtoMessage()

func (*Tags) Reset 

func (m *Tags) Reset()

func (*Tags) String 

func (m *Tags) String() string

Source Files

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Directories

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