lokahi

package
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 Go to latest Published: Mar 14, 2018 License: MIT Imports: 16 Imported by: 7

Documentation

Overview

Package lokahi is a generated protocol buffer package.

lokahi is a HTTP health checking and response time monitoring service.

It is generated from these files: 

lokahi.proto

It has these top-level messages: 

CreateOpts
CheckID
Check
CheckStatus
ListOpts
ChecksPage
HistogramData
Nil

Package lokahi is a generated twirp stub package. This code was generated with github.com/twitchtv/twirp/protoc-gen-twirp v5.2.0.

lokahi is a HTTP health checking and response time monitoring service.

It is generated from these files: 

lokahi.proto

Index

Constants

View Source 
const ChecksPathPrefix = "/twirp/github.xe.lokahi.Checks/"

ChecksPathPrefix is used for all URL paths on a twirp Checks server. Requests are always: POST ChecksPathPrefix/method It can be used in an HTTP mux to route twirp requests along with non-twirp requests on other routes.

View Source 
const WebhookPathPrefix = "/twirp/github.xe.lokahi.Webhook/"

WebhookPathPrefix is used for all URL paths on a twirp Webhook server. Requests are always: POST WebhookPathPrefix/method It can be used in an HTTP mux to route twirp requests along with non-twirp requests on other routes.

Variables

View Source 
var Check_State_name = map[int32]string{
	0: "INIT",
	1: "UP",
	2: "DOWN",
	3: "ERROR",
}
View Source 
var Check_State_value = map[string]int32{
	"INIT":  0,
	"UP":    1,
	"DOWN":  2,
	"ERROR": 3,
}

Functions

func WriteError 

func WriteError(resp http.ResponseWriter, err error)

WriteError writes an HTTP response with a valid Twirp error format. If err is not a twirp.Error, it will get wrapped with twirp.InternalErrorWith(err)

Types

type Check 

type Check struct {
	// id is the unique id of this check.
	Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
	// url is the HTTP/S url that will be monitored.
	Url string `protobuf:"bytes,2,opt,name=url" json:"url,omitempty"`
	// webhook_url is the HTTP/S url that will be HTTPS POST-ed to with the body
	// containing a protobuf-encoded CheckStatus message.
	WebhookUrl string `protobuf:"bytes,3,opt,name=webhook_url,json=webhookUrl" json:"webhook_url,omitempty"`
	// webhook_response_time_nanoseconds is last the response time of the webhook.
	WebhookResponseTimeNanoseconds int64 `` /* 149-byte string literal not displayed */
	// health checks happen every number of seconds (minimum: 60, maximum: 600).
	Every int32 `protobuf:"varint,5,opt,name=every" json:"every,omitempty"`
	// playbook_url is the playbook URL that will be passed to status webhooks.
	PlaybookUrl string `protobuf:"bytes,6,opt,name=playbook_url,json=playbookUrl" json:"playbook_url,omitempty"`
	// state is the current state of this uptime check.
	State Check_State `protobuf:"varint,7,opt,name=state,enum=github.xe.lokahi.Check_State" json:"state,omitempty"`
}

Check is an individual HTTP check.

func (*Check) Descriptor 

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

func (*Check) GetEvery 

func (m *Check) GetEvery() int32

func (*Check) GetId 

func (m *Check) GetId() string

func (*Check) GetPlaybookUrl 

func (m *Check) GetPlaybookUrl() string

func (*Check) GetState 

func (m *Check) GetState() Check_State

func (*Check) GetUrl 

func (m *Check) GetUrl() string

func (*Check) GetWebhookResponseTimeNanoseconds 

func (m *Check) GetWebhookResponseTimeNanoseconds() int64

func (*Check) GetWebhookUrl 

func (m *Check) GetWebhookUrl() string

func (*Check) ProtoMessage 

func (*Check) ProtoMessage()

func (*Check) Reset 

func (m *Check) Reset()

func (*Check) String 

func (m *Check) String() string

type CheckID 

type CheckID struct {
	// id is the Check id.
	Id string `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"`
}

CheckID is a small wrapper around a Check ID.

func (*CheckID) Descriptor 

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

func (*CheckID) GetId 

func (m *CheckID) GetId() string

func (*CheckID) ProtoMessage 

func (*CheckID) ProtoMessage()

func (*CheckID) Reset 

func (m *CheckID) Reset()

func (*CheckID) String 

func (m *CheckID) String() string

type CheckStatus 

type CheckStatus struct {
	// check is the information for the relevant Check.
	Check *Check `protobuf:"bytes,1,opt,name=check" json:"check,omitempty"`
	// last_response_time_nanoseconds is the last http web response time from the
	// Check's monitoring URL in nanoseconds.
	LastResponseTimeNanoseconds int64 `` /* 140-byte string literal not displayed */
	// histogram_data is the detailed histogram data for this check.
	HistogramData *HistogramData `protobuf:"bytes,3,opt,name=histogram_data,json=histogramData" json:"histogram_data,omitempty"`
	// resp_status_code is the HTTP status response code of the URL being monitored.
	RespStatusCode int32 `protobuf:"varint,4,opt,name=resp_status_code,json=respStatusCode" json:"resp_status_code,omitempty"`
}

CheckStatus contains detailed information about the uptime status of a Check. This is POST-ed to webhook recipients.

func (*CheckStatus) Descriptor 

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

func (*CheckStatus) GetCheck 

func (m *CheckStatus) GetCheck() *Check

func (*CheckStatus) GetHistogramData 

func (m *CheckStatus) GetHistogramData() *HistogramData

func (*CheckStatus) GetLastResponseTimeNanoseconds 

func (m *CheckStatus) GetLastResponseTimeNanoseconds() int64

func (*CheckStatus) GetRespStatusCode 

func (m *CheckStatus) GetRespStatusCode() int32

func (*CheckStatus) ProtoMessage 

func (*CheckStatus) ProtoMessage()

func (*CheckStatus) Reset 

func (m *CheckStatus) Reset()

func (*CheckStatus) String 

func (m *CheckStatus) String() string

type Check_State 

type Check_State int32

State is the finite state machine state. 

const (
	Check_INIT  Check_State = 0
	Check_UP    Check_State = 1
	Check_DOWN  Check_State = 2
	Check_ERROR Check_State = 3
)

func (Check_State) EnumDescriptor 

func (Check_State) EnumDescriptor() ([]byte, []int)

func (Check_State) String 

func (x Check_State) String() string

type Checks 

type Checks interface {
	// Create creates a new health check with the given options.
	Create(context.Context, *CreateOpts) (*Check, error)

	// Delete removes a check by ID and returns the data that was deleted.
	Delete(context.Context, *CheckID) (*Check, error)

	// Get returns information on a check by ID.
	Get(context.Context, *CheckID) (*Check, error)

	// List returns a page of checks based on a few options.
	List(context.Context, *ListOpts) (*ChecksPage, error)

	// Put updates a Check.
	Put(context.Context, *Check) (*Check, error)

	// Status returns the detailed histogram status of a check.
	Status(context.Context, *CheckID) (*CheckStatus, error)
}

Checks manages and schedules web application health checks.

func NewChecksJSONClient 

func NewChecksJSONClient(addr string, client HTTPClient) Checks

NewChecksJSONClient creates a JSON client that implements the Checks interface. It communicates using JSON and can be configured with a custom HTTPClient.

func NewChecksProtobufClient 

func NewChecksProtobufClient(addr string, client HTTPClient) Checks

NewChecksProtobufClient creates a Protobuf client that implements the Checks interface. It communicates using Protobuf and can be configured with a custom HTTPClient.

type ChecksPage 

type ChecksPage struct {
	Results []*ChecksPage_Result `protobuf:"bytes,1,rep,name=results" json:"results,omitempty"`
}

ChecksPage is a paginated Check list response.

func (*ChecksPage) Descriptor 

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

func (*ChecksPage) GetResults 

func (m *ChecksPage) GetResults() []*ChecksPage_Result

func (*ChecksPage) ProtoMessage 

func (*ChecksPage) ProtoMessage()

func (*ChecksPage) Reset 

func (m *ChecksPage) Reset()

func (*ChecksPage) String 

func (m *ChecksPage) String() string

type ChecksPage_Result 

type ChecksPage_Result struct {
	// check is the individual check being listed.
	Check *Check `protobuf:"bytes,1,opt,name=check" json:"check,omitempty"`
	// histogram_data is the detailed histogram data for this check, this is
	// nornally not set unless include_status is set in ListOpts.
	HistogramData *HistogramData `protobuf:"bytes,2,opt,name=histogram_data,json=histogramData" json:"histogram_data,omitempty"`
}

Result is an individual List result.

func (*ChecksPage_Result) Descriptor 

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

func (*ChecksPage_Result) GetCheck 

func (m *ChecksPage_Result) GetCheck() *Check

func (*ChecksPage_Result) GetHistogramData 

func (m *ChecksPage_Result) GetHistogramData() *HistogramData

func (*ChecksPage_Result) ProtoMessage 

func (*ChecksPage_Result) ProtoMessage()

func (*ChecksPage_Result) Reset 

func (m *ChecksPage_Result) Reset()

func (*ChecksPage_Result) String 

func (m *ChecksPage_Result) String() string

type CreateOpts 

type CreateOpts struct {
	// url is the HTTP/S url that will be monitored.
	Url string `protobuf:"bytes,1,opt,name=url" json:"url,omitempty"`
	// webhook_url is the HTTP/S url that will be HTTPS POST-ed to with the body
	// containing a protobuf-encoded CheckStatus message.
	WebhookUrl string `protobuf:"bytes,2,opt,name=webhook_url,json=webhookUrl" json:"webhook_url,omitempty"`
	// health checks happen every number of seconds (minimum: 60, maximum: 600).
	Every int32 `protobuf:"varint,3,opt,name=every" json:"every,omitempty"`
	// playbook_url is the playbook URL that will be passed to status webhooks.
	PlaybookUrl string `protobuf:"bytes,4,opt,name=playbook_url,json=playbookUrl" json:"playbook_url,omitempty"`
}

CreateOpts contains arguments used to construct a Check.

func (*CreateOpts) Descriptor 

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

func (*CreateOpts) GetEvery 

func (m *CreateOpts) GetEvery() int32

func (*CreateOpts) GetPlaybookUrl 

func (m *CreateOpts) GetPlaybookUrl() string

func (*CreateOpts) GetUrl 

func (m *CreateOpts) GetUrl() string

func (*CreateOpts) GetWebhookUrl 

func (m *CreateOpts) GetWebhookUrl() string

func (*CreateOpts) ProtoMessage 

func (*CreateOpts) ProtoMessage()

func (*CreateOpts) Reset 

func (m *CreateOpts) Reset()

func (*CreateOpts) String 

func (m *CreateOpts) String() string

type HTTPClient 

type HTTPClient interface {
	Do(req *http.Request) (*http.Response, error)
}

HTTPClient is the interface used by generated clients to send HTTP requests. It is fulfilled by *(net/http).Client, which is sufficient for most users. Users can provide their own implementation for special retry policies.

HTTPClient implementations should not follow redirects. Redirects are automatically disabled if *(net/http).Client is passed to client constructors. See the withoutRedirects function in this file for more details.

type HistogramData 

type HistogramData struct {
	// max_nanoseconds is the maximum http web response time in nanoseconds.
	MaxNanoseconds float64 `protobuf:"fixed64,1,opt,name=max_nanoseconds,json=maxNanoseconds" json:"max_nanoseconds,omitempty"`
	// min_nanoseconds is the minimum http web response time in nanoseconds.
	MinNanoseconds float64 `protobuf:"fixed64,2,opt,name=min_nanoseconds,json=minNanoseconds" json:"min_nanoseconds,omitempty"`
	// mean_nanoseconds is the mean http web response time in nanoseconds.
	MeanNanoseconds float64 `protobuf:"fixed64,3,opt,name=mean_nanoseconds,json=meanNanoseconds" json:"mean_nanoseconds,omitempty"`
	// stddev is the standard deviation from the mean.
	Stddev float64 `protobuf:"fixed64,4,opt,name=stddev" json:"stddev,omitempty"`
	// p50_nanoseconds is the 50th percentile of the http web response times in
	// nanoseconds.
	P50Nanoseconds float64 `protobuf:"fixed64,5,opt,name=p50_nanoseconds,json=p50Nanoseconds" json:"p50_nanoseconds,omitempty"`
	// p75_nanoseconds is the 75th percentile of the http web response times in
	// nanoseconds.
	P75Nanoseconds float64 `protobuf:"fixed64,6,opt,name=p75_nanoseconds,json=p75Nanoseconds" json:"p75_nanoseconds,omitempty"`
	// p95_nanoseconds is the 95th percentile of the http web response times in
	// nanoseconds.
	P95Nanoseconds float64 `protobuf:"fixed64,7,opt,name=p95_nanoseconds,json=p95Nanoseconds" json:"p95_nanoseconds,omitempty"`
	// p99_nanoseconds is the 95th percentile of the http web response times in
	// nanoseconds.
	P99Nanoseconds float64 `protobuf:"fixed64,8,opt,name=p99_nanoseconds,json=p99Nanoseconds" json:"p99_nanoseconds,omitempty"`
}

HistogramData contains information from the HDR histogram maintained for each check.

func (*HistogramData) Descriptor 

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

func (*HistogramData) GetMaxNanoseconds 

func (m *HistogramData) GetMaxNanoseconds() float64

func (*HistogramData) GetMeanNanoseconds 

func (m *HistogramData) GetMeanNanoseconds() float64

func (*HistogramData) GetMinNanoseconds 

func (m *HistogramData) GetMinNanoseconds() float64

func (*HistogramData) GetP50Nanoseconds 

func (m *HistogramData) GetP50Nanoseconds() float64

func (*HistogramData) GetP75Nanoseconds 

func (m *HistogramData) GetP75Nanoseconds() float64

func (*HistogramData) GetP95Nanoseconds 

func (m *HistogramData) GetP95Nanoseconds() float64

func (*HistogramData) GetP99Nanoseconds 

func (m *HistogramData) GetP99Nanoseconds() float64

func (*HistogramData) GetStddev 

func (m *HistogramData) GetStddev() float64

func (*HistogramData) ProtoMessage 

func (*HistogramData) ProtoMessage()

func (*HistogramData) Reset 

func (m *HistogramData) Reset()

func (*HistogramData) String 

func (m *HistogramData) String() string

type ListOpts 

type ListOpts struct {
	// count is the number of checks that will be returned.
	Count int32 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
	// offset is the number of checks that will be offset
	Offset int32 `protobuf:"varint,2,opt,name=offset" json:"offset,omitempty"`
	// include_status includes the histogram data for each check result.
	// This is O(scary). Use this with care.
	IncludeStatus bool `protobuf:"varint,3,opt,name=include_status,json=includeStatus" json:"include_status,omitempty"`
}

ListOpts contains options to the service Checks method List.

func (*ListOpts) Descriptor 

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

func (*ListOpts) GetCount 

func (m *ListOpts) GetCount() int32

func (*ListOpts) GetIncludeStatus 

func (m *ListOpts) GetIncludeStatus() bool

func (*ListOpts) GetOffset 

func (m *ListOpts) GetOffset() int32

func (*ListOpts) ProtoMessage 

func (*ListOpts) ProtoMessage()

func (*ListOpts) Reset 

func (m *ListOpts) Reset()

func (*ListOpts) String 

func (m *ListOpts) String() string

type Nil 

type Nil struct {
}

func (*Nil) Descriptor 

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

func (*Nil) ProtoMessage 

func (*Nil) ProtoMessage()

func (*Nil) Reset 

func (m *Nil) Reset()

func (*Nil) String 

func (m *Nil) String() string

type TwirpServer 

type TwirpServer interface {
	http.Handler
	// ServiceDescriptor returns gzipped bytes describing the .proto file that
	// this service was generated from. Once unzipped, the bytes can be
	// unmarshalled as a
	// github.com/golang/protobuf/protoc-gen-go/descriptor.FileDescriptorProto.
	//
	// The returned integer is the index of this particular service within that
	// FileDescriptorProto's 'Service' slice of ServiceDescriptorProtos. This is a
	// low-level field, expected to be used for reflection.
	ServiceDescriptor() ([]byte, int)
	// ProtocGenTwirpVersion is the semantic version string of the version of
	// twirp used to generate this file.
	ProtocGenTwirpVersion() string
}

TwirpServer is the interface generated server structs will support: they're HTTP handlers with additional methods for accessing metadata about the service. Those accessors are a low-level API for building reflection tools. Most people can think of TwirpServers as just http.Handlers.

func NewChecksServer 

func NewChecksServer(svc Checks, hooks *twirp.ServerHooks) TwirpServer

func NewWebhookServer 

func NewWebhookServer(svc Webhook, hooks *twirp.ServerHooks) TwirpServer

type Webhook 

type Webhook interface {
	Handle(context.Context, *CheckStatus) (*Nil, error)
}

func NewWebhookJSONClient 

func NewWebhookJSONClient(addr string, client HTTPClient) Webhook

NewWebhookJSONClient creates a JSON client that implements the Webhook interface. It communicates using JSON and can be configured with a custom HTTPClient.

func NewWebhookProtobufClient 

func NewWebhookProtobufClient(addr string, client HTTPClient) Webhook

NewWebhookProtobufClient creates a Protobuf client that implements the Webhook interface. It communicates using Protobuf and can be configured with a custom HTTPClient.

Source Files

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