File exporter_exporter-0.4.0.obscpio of Package golang-github-QubitProducts-exporter_exporter
07070100000000000081A4000003E800000064000000015EB2C5B300000015000000000000000000000000000000000000002600000000exporter_exporter-0.4.0/.dockerignorepromu
github-release
07070100000001000081A4000003E800000064000000015EB2C5B30000013F000000000000000000000000000000000000002000000000exporter_exporter-0.4.0/AUTHORSBrian Brazil <brian.brazil@robustperception.io>
Brian Candler <b.candler@pobox.com>
Dan Poltawski <dan.poltawski@tnp.net.uk>
Kirill Shestakov <freyr.sh@gmail.com>
Laurie Clark-Michalek <laurie@qubit.com>
Linas <linas@daneliukas.eu>
Thomas Frössman <thomasf@jossystem.se>
Tristan Colgate-McFarlane <tcolgate@gmail.com>
07070100000002000081A4000003E800000064000000015EB2C5B3000000E6000000000000000000000000000000000000002300000000exporter_exporter-0.4.0/DockerfileFROM golang:1.14.2-alpine AS build
RUN mkdir /src
WORKDIR /src
COPY *.go go.mod go.sum /src/
RUN apk add git
RUN go build .
FROM alpine
COPY --from=build /src/exporter_exporter /usr/bin/
ENTRYPOINT ["/usr/bin/exporter_exporter"]
07070100000003000081A4000003E800000064000000015EB2C5B300002C5D000000000000000000000000000000000000002000000000exporter_exporter-0.4.0/LICENSE Apache License
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07070100000004000081A4000003E800000064000000015EB2C5B3000011B6000000000000000000000000000000000000002100000000exporter_exporter-0.4.0/MakefileGITHUB_ORG = QubitProducts
GITHUB_REPO = exporter_exporter
VERSION = 0.4.0
DOCKER_REGISTRY = qubitproducts
DOCKER_NAME = exporter_exporter
DOCKER_IMAGE = $(DOCKER_REGISTRY)/$(DOCKER_NAME):$(VERSION)
DOCKER_IMAGE_LATEST = $(DOCKER_REGISTRY)/$(DOCKER_NAME):latest
SHELL := /usr/bin/env bash
GO := go
FIRST_GOPATH := $(firstword $(subst :, ,$(GOPATH)))
FILES = $(shell find . -name '*.go' | grep -v vendor)
PREFIX ?= $(shell pwd)
BIN_DIR ?= $(shell pwd)
PACKAGE_TARGET = deb
PACKAGE_NAME = expexp
PACKAGE_VERSION = $(VERSION)
PACKAGE_REVISION = 3
PACKAGE_ARCH = amd64
PACKAGE_MAINTAINER = tristan@qubit.com
PACKAGE_FILE = $(PACKAGE_NAME)_$(PACKAGE_VERSION)-$(PACKAGE_REVISION)_$(PACKAGE_ARCH).$(PACKAGE_TARGET)
BINNAME = exporter_exporter
PWD := $(shell pwd)
all: package
clean:
rm -f $(PACKAGE_FILE)
rm -rf dist
rm -rf build
.PHONY: test
test:
echo ">> running short tests"
$(GO) test -short $(pkgs)
.PHONY: test-static
test-static:
echo ">> running static tests"
$(GO) vet $(pkgs)
[[ "$(shell gofmt -l $(files))" == "" ]] || (echo "gofmt check failed"; exit 1)
.PHONY: format
format:
echo ">> formatting code"
$(GO) fmt $(pkgs)
.PHONY: vet
vet:
echo ">> vetting code"
$(GO) vet $(pkgs)
.PHONY: prepare-package clean-package package
prepare-package: clean-package build/$(BINNAME)-$(VERSION).linux-amd64/$(BINNAME)
mkdir -p dist/usr/local/bin
mkdir -p dist/etc/init
mkdir -p dist/etc/default
mkdir -p dist/etc/exporter_exporter.d/
install -m755 build/$(BINNAME)-$(VERSION).linux-amd64/$(BINNAME) dist/usr/local/bin/$(BINNAME)
install -m644 $(BINNAME).conf dist/etc/init/$(BINNAME).conf
install -m644 $(BINNAME).defaults dist/etc/default/$(BINNAME)
install -m644 expexp.yaml dist/etc/exporter_exporter.yaml
touch dist/etc/exporter_exporter.d/.dir
clean-package:
rm -rf dist
.PHONY: AUTHORS
AUTHORS:
# There's only so much credit I need.
git log --format='%aN <%aE>' | grep -v Tristan\ Colgate\ | sort -u > AUTHORS
$(PACKAGE_FILE): prepare-package
cd dist && \
fpm \
-t $(PACKAGE_TARGET) \
-m $(PACKAGE_MAINTAINER) \
-n $(PACKAGE_NAME) \
-a $(PACKAGE_ARCH) \
-v $(PACKAGE_VERSION) \
--iteration $(PACKAGE_REVISION) \
--config-files /etc/$(BINNAME).yaml \
--config-files /etc/init/$(BINNAME).conf \
--config-files /etc/default/$(BINNAME) \
-s dir \
-p ../$(PACKAGE_FILE) \
.
.PHONY: build-docker release-docker
build-docker:
docker build -t $(DOCKER_IMAGE) .
release-docker: build-docker
docker push $(DOCKER_IMAGE)
docker tag $(DOCKER_IMAGE) $(DOCKER_IMAGE_LATEST)
docker push $(DOCKER_IMAGE_LATEST)
LDFLAGS = -X main.Version=$(VERSION) \
-X main.Branch=$(BRANCH) \
-X main.Revision=$(REVISION) \
-X main.BuildUser=$(BUILDUSER) \
-X main.BuildDate=$(BUILDDATE)
build/$(BINNAME)-$(VERSION).windows-amd64/$(BINNAME).exe: $(SRCS)
GOOS=$* GOARCH=amd64 $(GO) build \
-ldflags "$(LDFLAGS)" \
-o $@ \
.
build/$(BINNAME)-$(VERSION).windows-amd64.zip: build/expoter_exporter-$(VERSION).windows-amd64/$(BINNAME).exe
zip $@ $<
build/$(BINNAME)-$(VERSION).%-amd64/$(BINNAME): $(SRCS)
GOOS=$* GOARCH=amd64 $(GO) build \
-ldflags "$(LDFLAGS)" \
-o $@ \
.
build/$(BINNAME)-$(VERSION).%-amd64.tar.gz: build/$(BINNAME)-$(VERSION).%-amd64/$(BINNAME)
cd build && \
tar cfzv $(BINNAME)-$(VERSION).$*-amd64.tar.gz $(BINNAME)-$(VERSION).$*-amd64
package: $(PACKAGE_FILE)
package-release: $(PACKAGE_FILE)
go run github.com/aktau/github-release upload \
-u $(GITHUB_ORG) \
-r $(GITHUB_REPO) \
--tag v$(VERSION) \
--name $(PACKAGE_FILE) \
--file $(PACKAGE_FILE)
release-windows: build/exporter_exporter-$(VERSION).windows-amd64.zip
go run github.com/aktau/github-release upload \
-u $(GITHUB_ORG) \
-r $(GITHUB_REPO) \
--tag v$(VERSION) \
--name exporter_exporter-$(VERSION).windows-amd64.zip \
-f ./build/exporter_exporter-$(VERSION).windows-amd64.zip
release-%: build/exporter_exporter-$(VERSION).%-amd64.tar.gz
go run github.com/aktau/github-release upload \
-u $(GITHUB_ORG) \
-r $(GITHUB_REPO) \
--tag v$(VERSION) \
--name exporter_exporter-$(VERSION).$*-amd64.tar.gz \
-f ./build/exporter_exporter-$(VERSION).$*-amd64.tar.gz
release:
git tag v$(VERSION)
git push origin v$(VERSION)
go run github.com/aktau/github-release release \
-u $(GITHUB_ORG) \
-r $(GITHUB_REPO) \
--tag v$(VERSION) \
--name v$(VERSION)
make release-darwin release-linux release-windows package-release
07070100000005000081A4000003E800000064000000015EB2C5B30000002C000000000000000000000000000000000000001F00000000exporter_exporter-0.4.0/NOTICEexporter_exporter
Copyright 2016 Qubit Ltd.
07070100000006000081A4000003E800000064000000015EB2C5B300001B2B000000000000000000000000000000000000002200000000exporter_exporter-0.4.0/README.md# Exporter Exporter - prometheus exporter proxy
``` "you mean apache/nginx" - bbrazil ```
This provides a simple reverse proxy for prometheus exporters. It is intended as a
single binary alternative to nginx/apache for use in environments where opening multiple
TCP ports to all servers might be difficult (technically or politically)
The advantages are:
- A single port can be used to query multiple exporters (to ease firewall configuration concerns).
- Can provide TLS with optional client certificate authentication.
- Provides verification that the target is serving prometheus metrics.
- Can be used to execute scripts that produce prometheus metrics.
- _up_ behaviour is the same as for querying individual collectors.
- Small code size, minimal external depedencies, easily auditable.
The exporter has three endpoints.
- /: displays a list of all exporters with links to their metrics.
- Returns JSON if the header "Accept: application/json" is passed
- /proxy: which takes the following parameters:
- module: the name of the module from the configuration to execute.
- args (optional): arguments to pass to the module.
- params (optional): named parameter to pass to the module (either as CLI args, or http parameters).
- /metrics: this exposes the metrics for the collector itself.
Features that will NOT be included:
- merging of module outputs into one query (this would break _up_ behaviour)
## Installation
You can build directly using a plain ```go get github.com/QubitProducts/exporter_exporter```.
The provided Makefile is primarily used for releases.
Pre-built binaries and a debian package are available on the [GitHub release page](https://github.com/QubitProducts/exporter_exporter/releases).
An ansible recipe as also [available](https://github.com/umanit/ansible-prometheus_exporter_exporter) (kindly provided by one of our users).
TODO:
- Config reload on HUP (or POST, or config file change?)
- route to a docker/rocket container by name
### Windows Service
The binary can be installed as a Windows service by supplying the `-winsvc install` arg.
All other arguments passed along with `-winsvc install` will be added to the service startup
and can only be changed by uninstalling/installing it again (or modifying the Windows registry directly).
## Configuration
In expexp.yaml list each exporter listening on localhost with its known port.
```
modules:
node:
method: http
http:
port: 9100
mtail:
method: http
http:
port: 3903
headers:
foo: bar
cadvisor:
verify: false
method: http
http:
port: 4194
netdata:
method: http
http:
port: 19999
path: '/api/v1/allmetrics?format=prometheus'
somescript:
method: exec
timeout: 1s
exec:
command: /tmp/myscript.sh
args:
- "myarg1"
- "myarg2"
env:
THING: "1"
THING2: "2"
```
In your prometheus configuration
```
scrape_configs:
- job_name: 'expexp_metrics'
scrape_interval: 1s
static_configs:
- targets: ['host:9999']
- job_name: 'cadvisor'
scrape_interval: 5s
metrics_path: /proxy
params:
module:
- cadvisor
static_configs:
- targets: ['host:9999']
- job_name: 'mtail'
scrape_interval: 5s
metrics_path: /proxy
params:
module:
- mtail
static_configs:
- targets: ['host:9999']
- job_name: 'somescript'
scrape_interval: 5s
metrics_path: /proxy
params:
module:
- somescript
static_configs:
- targets: ['host:9999']
```
## Directory-based configuration
You can also specify `-config.dirs` to break the configuration into separate
files. The module name is taken from the name of the file (minus the
yml/yaml extension), and the configuration for that module goes in at the
top level.
```
==> expexp.yaml <==
modules: {}
==> expexp.d/node.yaml <==
method: http
http:
port: 9100
==> expexp.d/mtail.yaml <==
method: http
http:
port: 3903
```
## TLS configuration
You can use exporter_exporter with TLS to encrypt the traffic, and at the
same time enforce strong mutual authentication between the nodes and the
prometheus server.
Note that `-web.tls.verify` will accept *any* certificate signed by the
`-web.tls.ca`, so you need to create a separate CA for this purpose - or use
a self-signed certificate, which acts as its own CA.
Here is a simple configuration example, using one key/cert for the
prometheus server and one key/cert shared between all the remote nodes.
Firstly, create the keys and certs:
```
openssl req -x509 -newkey rsa:1024 -keyout prom_node_key.pem -out prom_node_cert.pem -days 29220 -nodes -subj /commonName=prom_node/
openssl req -x509 -newkey rsa:1024 -keyout prometheus_key.pem -out prometheus_cert.pem -days 29220 -nodes -subj /commonName=prometheus/
```
Create an `/etc/prometheus/ssl/` directory on the prometheus server and all
the remote nodes. Install both cert.pem files everywhere. It is safe for
them to be world-readable.
Install `prom_node_key.pem` only on the nodes, and set file permissions to
protect it so that only exporter_exporter can read it. Similarly, install
`prometheus_key.pem` only on the prometheus server, and set permissions so
that only the prometheus process can read it.
Configuration for exporter_exporter on the nodes (here it also disables
plain HTTP):
```
EXPEXP_FLAGS='-web.listen-address= -web.tls.listen-address=:9998
-web.tls.cert=/etc/prometheus/ssl/prom_node_cert.pem
-web.tls.key=/etc/prometheus/ssl/prom_node_key.pem
-web.tls.ca=/etc/prometheus/ssl/prometheus_cert.pem
-web.tls.verify'
```
To test, use `curl` to make a scrape, replacing x.x.x.x with the IP address
of the target:
```
curl --cert /etc/prometheus/ssl/prometheus_cert.pem \
--key /etc/prometheus/ssl/prometheus_key.pem \
--cacert /etc/prometheus/ssl/prom_node_cert.pem \
--resolve prom_node:9998:x.x.x.x \
-v https://prom_node:9998/proxy?module=node
```
When this is working, configure your prometheus server to use https. Example:
```
- job_name: node
scrape_interval: 1m
scrape_timeout: 50s
file_sd_configs:
- files:
- /etc/prometheus/targets.d/node_targets.yml
scheme: https
tls_config:
# Verifying remote identity
ca_file: /etc/prometheus/ssl/prom_node_cert.pem
server_name: prom_node
# Asserting our identity
cert_file: /etc/prometheus/ssl/prometheus_cert.pem
key_file: /etc/prometheus/ssl/prometheus_key.pem
metrics_path: /proxy
params:
module: [ node ]
relabel_configs:
- source_labels: [__address__]
target_label: instance
- source_labels: [__address__]
regex: '[^:]+'
target_label: __address__
replacement: '${1}:9998'
```
Example `/etc/prometheus/targets.d/node_targets.yml`:
```
- labels: []
targets:
- 192.0.2.1
- 192.0.2.2
```
07070100000007000081A4000003E800000064000000015EB2C5B300001580000000000000000000000000000000000000002200000000exporter_exporter-0.4.0/config.go// Copyright 2016 Qubit Ltd.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"crypto/tls"
"crypto/x509"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/httputil"
"time"
yaml "gopkg.in/yaml.v2"
)
type config struct {
Global struct {
}
Modules map[string]*moduleConfig
XXX map[string]interface{} `yaml:",inline"`
bearerToken string
proxyPath string
telemetryPath string
}
type moduleConfig struct {
Method string `yaml:"method"`
Timeout time.Duration `yaml:"timeout"`
XXX map[string]interface{} `yaml:",inline"`
Exec execConfig `yaml:"exec"`
HTTP httpConfig `yaml:"http"`
name string
}
type httpConfig struct {
Verify *bool `yaml:"verify"` // no default
TLSInsecureSkipVerify bool `yaml:"tls_insecure_skip_verify"` // false
TLSCertFile *string `yaml:"tls_cert_file"` // no default
TLSKeyFile *string `yaml:"tls_key_file"` // no default
TLSCACertFile *string `yaml:"tls_ca_cert_file"` // no default
Port int `yaml:"port"` // no default
Path string `yaml:"path"` // /metrics
Scheme string `yaml:"scheme"` // http
Address string `yaml:"address"` // 127.0.0.1
Headers map[string]string `yaml:"headers"` // no default
XXX map[string]interface{} `yaml:",inline"`
tlsConfig *tls.Config
mcfg *moduleConfig
*httputil.ReverseProxy `json:"-"`
}
type execConfig struct {
Command string `yaml:"command"`
Args []string `yaml:"args"`
Env map[string]string `yaml:"env"`
XXX map[string]interface{} `yaml:",inline"`
mcfg *moduleConfig
}
func readConfig(r io.Reader) (*config, error) {
buf := bytes.Buffer{}
io.Copy(&buf, r)
cfg := config{}
err := yaml.Unmarshal(buf.Bytes(), &cfg)
if len(cfg.XXX) != 0 {
return nil, fmt.Errorf("Unknown configuration fields: %v", cfg.XXX)
}
for s := range cfg.Modules {
if err := checkModuleConfig(s, cfg.Modules[s]); err != nil {
return nil, fmt.Errorf("bad config for module %s, %w", s, err)
}
}
return &cfg, err
}
func readModuleConfig(name string, r io.Reader) (*moduleConfig, error) {
buf := bytes.Buffer{}
io.Copy(&buf, r)
cfg := moduleConfig{}
err := yaml.Unmarshal(buf.Bytes(), &cfg)
if err != nil {
return nil, err
}
if err = checkModuleConfig(name, &cfg); err != nil {
return nil, err
}
return &cfg, nil
}
func checkModuleConfig(name string, cfg *moduleConfig) error {
if len(cfg.XXX) != 0 {
return fmt.Errorf("unknown module configuration fields: %v", cfg.XXX)
}
cfg.name = name
switch cfg.Method {
case "http":
if len(cfg.HTTP.XXX) != 0 {
return fmt.Errorf("Unknown http module configuration fields: %v", cfg.HTTP.XXX)
}
if cfg.HTTP.Port == 0 {
return fmt.Errorf("module %v must have a non-zero port set", name)
}
if cfg.HTTP.Verify == nil {
v := true
cfg.HTTP.Verify = &v
}
if cfg.HTTP.Scheme == "" {
cfg.HTTP.Scheme = "http"
}
if cfg.HTTP.Path == "" {
cfg.HTTP.Path = "/metrics"
}
if cfg.HTTP.Address == "" {
cfg.HTTP.Address = "localhost"
}
tlsConfig, err := cfg.HTTP.getTLSConfig()
if err != nil {
return fmt.Errorf("could not create tls config, %w", err)
}
dirFunc, err := cfg.getReverseProxyDirectorFunc()
if err != nil {
return err
}
cfg.HTTP.tlsConfig = tlsConfig
cfg.HTTP.ReverseProxy = &httputil.ReverseProxy{
Transport: &http.Transport{TLSClientConfig: tlsConfig},
Director: dirFunc,
ErrorHandler: cfg.getReverseProxyErrorHandlerFunc(),
}
if *cfg.HTTP.Verify {
cfg.HTTP.ReverseProxy.ModifyResponse = cfg.getReverseProxyModifyResponseFunc()
}
case "exec":
if len(cfg.Exec.XXX) != 0 {
return fmt.Errorf("Unknown exec module configuration fields: %v", cfg.Exec.XXX)
}
default:
return fmt.Errorf("Unknown module method: %v", cfg.Method)
}
return nil
}
func (c httpConfig) getTLSConfig() (*tls.Config, error) {
config := &tls.Config{
InsecureSkipVerify: c.TLSInsecureSkipVerify,
MinVersion: tls.VersionTLS12,
}
if c.TLSCACertFile != nil {
caCert, err := ioutil.ReadFile(*c.TLSCACertFile)
if err != nil {
return nil, fmt.Errorf("could not read ca from %v, %w", *c.TLSCACertFile, err)
}
config.ClientCAs = x509.NewCertPool()
config.ClientCAs.AppendCertsFromPEM(caCert)
}
if c.TLSCertFile != nil && c.TLSKeyFile != nil {
cert, err := tls.LoadX509KeyPair(*c.TLSCertFile, *c.TLSKeyFile)
if err != nil {
return nil, fmt.Errorf("failed reading TLS credentials, %w", err)
}
config.Certificates = []tls.Certificate{cert}
}
return config, nil
}
07070100000008000081A4000003E800000064000000015EB2C5B300000AAC000000000000000000000000000000000000002000000000exporter_exporter-0.4.0/exec.go// Copyright 2016 Qubit Ltd.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"context"
"fmt"
"net/http"
"os"
"os/exec"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/expfmt"
log "github.com/sirupsen/logrus"
)
var (
cmdStartsCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "expexp_command_starts_total",
Help: "Counts of command starts",
},
[]string{"module"},
)
cmdFailsCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "expexp_command_fails_total",
Help: "Count of commands with non-zero exits",
},
[]string{"module"},
)
)
func (c execConfig) GatherWithContext(ctx context.Context, r *http.Request) prometheus.GathererFunc {
return func() ([]*dto.MetricFamily, error) {
var out bytes.Buffer
cmd := exec.CommandContext(ctx, c.Command)
cmd.Args = append(cmd.Args, c.Args...)
uargs, ok := r.URL.Query()["args"]
if ok {
cmd.Args = append(cmd.Args, uargs...)
}
for k, v := range c.Env {
cmd.Env = append(cmd.Env, fmt.Sprintf("%s=%s", k, v))
}
cmd.Stdout = &out
cmd.Stderr = os.Stderr
errc := make(chan error, 1)
go func() {
cmdStartsCount.WithLabelValues(c.mcfg.name).Inc()
errc <- cmd.Run()
close(errc)
}()
var err error
select {
case err = <-errc:
case <-ctx.Done():
err = ctx.Err()
}
if err != nil {
log.Warnf("Command module %v failed %+v", c.mcfg.name, err)
cmdFailsCount.WithLabelValues(c.mcfg.name).Inc()
if err == context.DeadlineExceeded {
proxyTimeoutCount.WithLabelValues(c.mcfg.name).Inc()
}
return nil, err
}
var prsr expfmt.TextParser
var result []*dto.MetricFamily
mfs, err := prsr.TextToMetricFamilies(&out)
if err != nil {
proxyMalformedCount.WithLabelValues(c.mcfg.name).Inc()
return nil, err
}
for _, mf := range mfs {
result = append(result, mf)
}
return result, nil
}
}
func (c execConfig) ServeHTTP(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
g := c.GatherWithContext(ctx, r)
promhttp.HandlerFor(g, promhttp.HandlerOpts{}).ServeHTTP(w, r)
}
07070100000009000081A4000003E800000064000000015EB2C5B300000179000000000000000000000000000000000000002400000000exporter_exporter-0.4.0/expexp.yamlmodules:
node:
method: http
http:
port: 9100
tls_ca_cert_file: nofile
mtail:
method: http
http:
port: 3903
headers:
foo: bar
cadvisor:
method: http
http:
port: 4194
haproxy:
method: http
http:
port: 9101
blackbox:
method: http
http:
port: 9115
path: probe
0707010000000A000081A4000003E800000064000000015EB2C5B30000015A000000000000000000000000000000000000002F00000000exporter_exporter-0.4.0/exporter_exporter.conf# Ubuntu upstart file at /etc/init/exporter_exporter.conf
description "exporter_exporter"
start on (started networking)
stop on [!12345]
respawn
respawn limit 2 5
setuid root
setgid root
script
. /etc/default/exporter_exporter
exec /usr/local/bin/exporter_exporter -config.file /etc/exporter_exporter.yaml ${EXPEXP_FLAGS}
end script
0707010000000B000081A4000003E800000064000000015EB2C5B300000010000000000000000000000000000000000000003300000000exporter_exporter-0.4.0/exporter_exporter.defaultsEXPEXP_FLAGS=""
0707010000000C000081A4000003E800000064000000015EB2C5B300000422000000000000000000000000000000000000001F00000000exporter_exporter-0.4.0/go.modmodule github.com/QubitProducts/exporter_exporter
require (
github.com/aktau/github-release v0.7.2
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/golang/protobuf v1.3.1 // indirect
github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
github.com/kr/pretty v0.1.0 // indirect
github.com/prometheus/client_golang v0.9.2
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90
github.com/prometheus/common v0.2.0
github.com/prometheus/procfs v0.0.0-20190322151404-55ae3d9d5573 // indirect
github.com/sirupsen/logrus v1.4.0
github.com/stretchr/testify v1.3.0 // indirect
github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80 // indirect
github.com/voxelbrain/goptions v0.0.0-20180630082107-58cddc247ea2 // indirect
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c // indirect
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6
golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
gopkg.in/yaml.v2 v2.2.2
)
go 1.14
0707010000000D000081A4000003E800000064000000015EB2C5B300002038000000000000000000000000000000000000001F00000000exporter_exporter-0.4.0/go.sumgithub.com/aktau/github-release v0.7.2 h1:la7AnShr2MQPIlBEcRA9MPbI8av0YFmpFP9WM5EoqJs=
github.com/aktau/github-release v0.7.2/go.mod h1:cPkP83iRnV8pAJyQlQ4vjLJoC+JE+aT5sOrYz3sTsX0=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v0.9.2 h1:awm861/B8OKDd2I/6o1dy3ra4BamzKhYOiGItCeZ740=
github.com/prometheus/client_golang v0.9.2/go.mod h1:OsXs2jCmiKlQ1lTBmv21f2mNfw4xf/QclQDMrYNZzcM=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90 h1:S/YWwWx/RA8rT8tKFRuGUZhuA90OyIBpPCXkcbwU8DE=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.2.0 h1:kUZDBDTdBVBYBj5Tmh2NZLlF60mfjA27rM34b+cVwNU=
github.com/prometheus/common v0.2.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20190322151404-55ae3d9d5573 h1:gAuD3LIrjkoOOPLlhGlZWZXztrQII9a9kT6HS5jFtSY=
github.com/prometheus/procfs v0.0.0-20190322151404-55ae3d9d5573/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.0 h1:yKenngtzGh+cUSSh6GWbxW2abRqhYUSR/t/6+2QqNvE=
github.com/sirupsen/logrus v1.4.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80 h1:nrZ3ySNYwJbSpD6ce9duiP+QkD3JuLCcWkdaehUS/3Y=
github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80/go.mod h1:iFyPdL66DjUD96XmzVL3ZntbzcflLnznH0fr99w5VqE=
github.com/voxelbrain/goptions v0.0.0-20180630082107-58cddc247ea2 h1:txplJASvd6b/hrE0s/Ixfpp2cuwH9IO9oZBAN9iYa4A=
github.com/voxelbrain/goptions v0.0.0-20180630082107-58cddc247ea2/go.mod h1:DGCIhurYgnLz8J9ga1fMV/fbLDyUvTyrWXVWUIyJon4=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c h1:Vj5n4GlwjmQteupaxJ9+0FNOmBrHfq7vN4btdGoDZgI=
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6 h1:bjcUS9ztw9kFmmIxJInhon/0Is3p+EHBKNgquIzo1OI=
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc h1:4gbWbmmPFp4ySWICouJl6emP0MyS31yy9SrTlAGFT+g=
golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
0707010000000E000081A4000003E800000064000000015EB2C5B3000015F8000000000000000000000000000000000000002000000000exporter_exporter-0.4.0/http.go// Copyright 2016 Qubit Ltd.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"compress/gzip"
"context"
"errors"
"fmt"
"io"
"io/ioutil"
"net"
"net/http"
"net/url"
"strconv"
"strings"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/expfmt"
log "github.com/sirupsen/logrus"
)
const (
// Msg to send in response body when verification of proxied server
// response is failed
VerificationErrorMsg = "Internal Server Error: " +
"Response from proxied server failed verification. " +
"See server logs for details"
)
type VerifyError struct {
msg string
cause error
}
func (e *VerifyError) Error() string { return e.msg + ": " + e.cause.Error() }
func (e *VerifyError) Unwrap() error { return e.cause }
func (cfg moduleConfig) getReverseProxyDirectorFunc() (func(*http.Request), error) {
base, err := url.Parse(cfg.HTTP.Path)
if err != nil {
return nil, fmt.Errorf("http configuration path should be a valid URL path with options, %w", err)
}
cvs := base.Query()
return func(r *http.Request) {
qvs := r.URL.Query()
for k, vs := range cvs {
for _, v := range vs {
qvs.Add(k, v)
}
}
qvs["module"] = qvs["module"][1:]
r.URL.RawQuery = qvs.Encode()
for k, v := range cfg.HTTP.Headers {
r.Header.Add(k, v)
}
r.URL.Scheme = cfg.HTTP.Scheme
r.URL.Host = net.JoinHostPort(cfg.HTTP.Address, strconv.Itoa(cfg.HTTP.Port))
r.URL.Path = base.Path
}, nil
}
func (cfg moduleConfig) getReverseProxyModifyResponseFunc() func(*http.Response) error {
return func(resp *http.Response) error {
if resp.StatusCode != 200 {
return nil
}
var (
err error
body bytes.Buffer
oldBody = resp.Body
)
defer oldBody.Close()
if _, err = body.ReadFrom(oldBody); err != nil {
return &VerifyError{"Failed to read body from proxied server", err}
}
resp.Body = ioutil.NopCloser(bytes.NewReader(body.Bytes()))
var bodyReader io.ReadCloser
if resp.Header.Get("Content-Encoding") == "gzip" {
bodyReader, err = gzip.NewReader(bytes.NewReader(body.Bytes()))
if err != nil {
return &VerifyError{"Failed to decode gzipped response", err}
}
} else {
bodyReader = ioutil.NopCloser(bytes.NewReader(body.Bytes()))
}
defer bodyReader.Close()
dec := expfmt.NewDecoder(bodyReader, expfmt.ResponseFormat(resp.Header))
for {
mf := dto.MetricFamily{}
err := dec.Decode(&mf)
if err == io.EOF {
break
}
if err != nil {
proxyMalformedCount.WithLabelValues(cfg.name).Inc()
return &VerifyError{"Failed to decode metrics from proxied server", err}
}
}
return nil
}
}
func (cfg moduleConfig) getReverseProxyErrorHandlerFunc() func(http.ResponseWriter, *http.Request, error) {
return func(w http.ResponseWriter, r *http.Request, err error) {
var verifyError *VerifyError
if errors.As(err, &verifyError) {
log.Errorf("Verification for module '%s' failed: %v", cfg.name, err)
http.Error(w, VerificationErrorMsg, http.StatusInternalServerError)
return
}
if errors.Is(err, context.DeadlineExceeded) {
log.Errorf("Request time out for module '%s'", cfg.name)
http.Error(w, http.StatusText(http.StatusGatewayTimeout), http.StatusGatewayTimeout)
return
}
log.Errorf("Proxy error for module '%s': %v", cfg.name, err)
http.Error(w, http.StatusText(http.StatusBadGateway), http.StatusBadGateway)
}
}
// BearerAuthMiddleware
type BearerAuthMiddleware struct {
http.Handler
Token string
}
func (b BearerAuthMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request) {
authHeader := r.Header.Get("Authorization")
if authHeader == "" {
w.WriteHeader(http.StatusUnauthorized)
_, _ = w.Write([]byte("Authorization header is missing"))
return
}
ss := strings.SplitN(authHeader, " ", 2)
if !(len(ss) == 2 && ss[0] == "Bearer") {
w.WriteHeader(http.StatusUnauthorized)
_, _ = w.Write([]byte("Authorization header not of Bearer type"))
return
}
if ss[1] != b.Token {
w.WriteHeader(http.StatusUnauthorized)
_, _ = w.Write([]byte("Invalid Bearer Token"))
return
}
b.Handler.ServeHTTP(w, r)
}
type IPAddressAuthMiddleware struct {
http.Handler
ACL []net.IPNet
}
func (m IPAddressAuthMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request) {
host, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
log.Errorf("Failed to parse host form remote address '%s'", r.RemoteAddr)
w.WriteHeader(http.StatusInternalServerError)
_, _ = w.Write([]byte("Failed to determine client IP address"))
return
}
addr := net.ParseIP(host)
if addr == nil {
log.Errorf(
"Failed to determine client IP address from '%s' (originally '%s')",
host, r.RemoteAddr,
)
w.WriteHeader(http.StatusInternalServerError)
_, _ = w.Write([]byte("Failed to determine client IP address"))
return
}
for _, network := range m.ACL {
// client is in access list
if network.Contains(addr) {
m.Handler.ServeHTTP(w, r)
return
}
}
// client is not in access list
log.Infof("Access forbidden for %q", addr)
w.WriteHeader(http.StatusForbidden)
_, _ = w.Write([]byte("Forbidden"))
}
0707010000000F000081A4000003E800000064000000015EB2C5B300000A98000000000000000000000000000000000000002500000000exporter_exporter-0.4.0/http_test.gopackage main
import (
"bytes"
"fmt"
"io"
"math/rand"
"net/http"
"net/http/httptest"
"net/url"
"strconv"
"testing"
"time"
dto "github.com/prometheus/client_model/go"
"github.com/prometheus/common/expfmt"
)
func BenchmarkReverseProxyHandler(b *testing.B) {
body := genRandomMetricsResponse(10000, 10)
test_exporter := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
reader := bytes.NewReader(body.Bytes())
io.Copy(w, reader)
}))
defer test_exporter.Close()
URL, _ := url.Parse(test_exporter.URL)
verify := true
port, _ := strconv.ParseInt(URL.Port(), 0, 0)
modCfg := &moduleConfig{
Method: "http",
Timeout: 5 * time.Second,
HTTP: httpConfig{
Verify: &verify,
Scheme: URL.Scheme,
Address: URL.Hostname(),
Port: int(port),
Path: "/",
},
}
if err := checkModuleConfig("test", modCfg); err != nil {
b.Fatalf("Failed to check module config: %v", err)
}
cfg := &config{
Modules: map[string]*moduleConfig{
"test": modCfg,
},
}
req := httptest.NewRequest("GET", "/proxy?module=test", nil)
b.ResetTimer()
for i := 0; i < b.N; i++ {
rr := httptest.NewRecorder()
cfg.doProxy(rr, req)
if rr.Code != http.StatusOK {
b.Fatalf("Bad response status %d", rr.Code)
}
if len(rr.Body.Bytes()) <= 0 {
b.Fatal("Response body is absent")
}
}
}
// genRandomMetricsResponse generates http response body which contains random set of
// prometheus metrics. mf_num sets number of metric families in response which has
// metric names in format 'metric{random number}'. m_num controls number of metrics
// inside each metric family. Metrics inside metric families differ in values of
// label 'label'.
func genRandomMetricsResponse(mf_num int, m_num int) *bytes.Buffer {
rand.Seed(time.Now().UnixNano())
helpMsg := "help msg"
labelName := "label"
metricFamilies := make([]*dto.MetricFamily, mf_num)
metricType := dto.MetricType_GAUGE
for i, _ := range metricFamilies {
metrics := make([]*dto.Metric, m_num)
for i, _ := range metrics {
labelValue := fmt.Sprint(rand.Int63())
value := rand.Float64()
ts := time.Now().UnixNano()
metrics[i] = &dto.Metric{
Label: []*dto.LabelPair{
&dto.LabelPair{
Name: &labelName,
Value: &labelValue,
},
},
Gauge: &dto.Gauge{
Value: &value,
},
TimestampMs: &ts,
}
}
metricName := fmt.Sprintf("metric%d", rand.Int63())
metricFamilies[i] = &dto.MetricFamily{
Name: &metricName,
Help: &helpMsg,
Type: &metricType,
Metric: metrics,
}
}
buf := &bytes.Buffer{}
enc := expfmt.NewEncoder(buf, expfmt.FmtText)
for _, mf := range metricFamilies {
enc.Encode(mf)
}
return buf
}
07070100000010000081A4000003E800000064000000015EB2C5B3000039EC000000000000000000000000000000000000002000000000exporter_exporter-0.4.0/main.go// Copyright 2016 Qubit Ltd.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"crypto/tls"
"crypto/x509"
"encoding/json"
"errors"
"flag"
"fmt"
"html/template"
"io/ioutil"
"net"
"net/http"
"os"
"path"
"path/filepath"
"regexp"
"strings"
"time"
"golang.org/x/sync/errgroup"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
log "github.com/sirupsen/logrus"
)
var (
printVersion = flag.Bool("version", false, "Print the version and exit")
cfgFile = flag.String("config.file", "expexp.yaml", "The path to the configuration file.")
cfgDirs StringSliceFlag
skipDirs = flag.Bool("config.skip-dirs", false, "Skip non existent -config.dirs entries instead of terminating.")
addr = flag.String("web.listen-address", ":9999", "The address to listen on for HTTP requests.")
bearerToken = flag.String("web.bearer.token", "", "Bearer authentication token.")
bearerTokenFile = flag.String("web.bearer.token-file", "", "File containing the Bearer authentication token.")
acl IPNetSliceFlag
certPath = flag.String("web.tls.cert", "cert.pem", "Path to cert")
keyPath = flag.String("web.tls.key", "key.pem", "Path to key")
caPath = flag.String("web.tls.ca", "ca.pem", "Path to CA to auth clients against")
verify = flag.Bool("web.tls.verify", false, "Enable client verification")
certMatch = flag.String("web.tls.certmatch", "", "if set, this is used as a regexp that is matched against any certificate subject, dnsname or email address, only certs with a match are verified. web.tls.verify must also be set")
tlsAddr = flag.String("web.tls.listen-address", "", "The address to listen on for HTTPS requests.")
tPath = flag.String("web.telemetry-path", "/metrics", "The address to listen on for HTTP requests.")
pPath = flag.String("web.proxy-path", "/proxy", "The address to listen on for HTTP requests.")
logLevel = LogLevelFlag(log.WarnLevel)
logJson = flag.Bool("log.json", false, "Serialize log messages in JSON")
proxyDuration = prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Name: "expexp_proxy_duration_seconds",
Help: "Duration of proxying requests to configured exporters",
},
[]string{"module"},
)
proxyErrorCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "expexp_proxy_errors_total",
Help: "Counts of errors",
},
[]string{"module"},
)
proxyTimeoutCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "expexp_proxy_timeout_errors_total",
Help: "Counts of the number of times a proxy timeout occurred",
},
[]string{"module"},
)
proxyMalformedCount = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: "expexp_malformed_content_errors_total",
Help: "Counts of unparsable scrape content errors",
},
[]string{"module"},
)
)
func init() {
// register the collector metrics in the default
// registry.
prometheus.MustRegister(proxyDuration)
prometheus.MustRegister(proxyTimeoutCount)
prometheus.MustRegister(proxyErrorCount)
prometheus.MustRegister(proxyMalformedCount)
prometheus.MustRegister(cmdStartsCount)
prometheus.MustRegister(cmdFailsCount)
flag.Var(&cfgDirs, "config.dirs", "The path to directories of configuration files, can be specified multiple times.")
flag.Var(&acl, "allow.net", "Allow connection from this network specified in CIDR notation. Can be specified multiple times.")
flag.Var(&logLevel, "log.level", "Log level")
}
func setup() (*config, error) {
cfg := &config{
Modules: make(map[string]*moduleConfig),
XXX: make(map[string]interface{}),
}
if *cfgFile != "" {
r, err := os.Open(*cfgFile)
if err != nil {
return nil, err
}
defer r.Close()
cfg, err = readConfig(r)
if err != nil {
return nil, err
}
for mn, _ := range cfg.Modules {
log.Debugf("read module config '%s' from: %s", mn, *cfgFile)
}
}
cfgDirs:
for _, cfgDir := range cfgDirs {
mfs, err := ioutil.ReadDir(cfgDir)
if err != nil {
if *skipDirs && os.IsNotExist(err) {
log.Warnf("skipping non existent config.dirs entry '%s'", cfgDir)
continue cfgDirs
}
return nil, fmt.Errorf("failed reading directory: %s, %v", cfgDir, err)
}
yamlSuffixes := map[string]bool{
".yml": true,
".yaml": true,
}
for _, mf := range mfs {
fullpath := filepath.Join(cfgDir, mf.Name())
if mf.IsDir() || !yamlSuffixes[filepath.Ext(mf.Name())] {
log.Warnf("skipping non-yaml file %v", fullpath)
continue
}
mn := strings.TrimSuffix(mf.Name(), filepath.Ext(mf.Name()))
if _, ok := cfg.Modules[mn]; ok {
return nil, fmt.Errorf("module %s is already defined", mn)
}
r, err := os.Open(fullpath)
if err != nil {
return nil, fmt.Errorf("failed to open config file %s, %w", fullpath, err)
}
defer r.Close()
mcfg, err := readModuleConfig(mn, r)
if err != nil {
return nil, fmt.Errorf("failed reading configs %s, %w", fullpath, err)
}
log.Debugf("read module config '%s' from: %s", mn, fullpath)
cfg.Modules[mn] = mcfg
}
}
if len(cfg.Modules) == 0 {
log.Errorln("no modules loaded from any config file")
}
if *bearerToken != "" {
cfg.bearerToken = *bearerToken
}
if *bearerTokenFile != "" {
if *bearerToken != "" {
return nil, errors.New(("web.bearer.token and web.bearer.token-file are mutually exclusive options"))
}
bs, err := ioutil.ReadFile(*bearerTokenFile)
if err != nil {
return nil, fmt.Errorf("failed reading bearer file %s, %w", *bearerTokenFile, err)
}
t := strings.TrimSpace(string(bs))
if len(t) == 0 {
return nil, errors.New("token file should not be empty")
}
cfg.bearerToken = t
}
cfg.proxyPath = path.Clean("/" + *pPath)
cfg.telemetryPath = path.Clean("/" + *tPath)
if cfg.proxyPath == cfg.telemetryPath {
return nil, fmt.Errorf("flags -web.proxy-path and -web.telemetry-path can not be set to the same value")
}
return cfg, nil
}
func getClientValidator(r *regexp.Regexp, helloInfo *tls.ClientHelloInfo) func([][]byte, [][]*x509.Certificate) error {
return func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
for _, c := range verifiedChains {
leaf := c[0]
if r.MatchString(leaf.Subject.CommonName) {
return nil
}
for _, name := range leaf.DNSNames {
if r.MatchString(name) {
return nil
}
}
for _, name := range leaf.EmailAddresses {
if r.MatchString(name) {
return nil
}
}
}
return errors.New("no client certificate subject or email address matched")
}
}
func setupTLS() (*tls.Config, error) {
var tlsConfig *tls.Config
if *tlsAddr == "" {
return nil, nil
}
cert, err := tls.LoadX509KeyPair(*certPath, *keyPath)
if err != nil {
return nil, fmt.Errorf("Could not parse key/cert, %w", err)
}
tlsConfig = &tls.Config{
Certificates: []tls.Certificate{cert},
MinVersion: tls.VersionTLS12,
CipherSuites: []uint16{
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
},
}
tlsConfig.BuildNameToCertificate()
if *verify {
pool := x509.NewCertPool()
cabs, err := ioutil.ReadFile(*caPath)
if err != nil {
return nil, fmt.Errorf("Could not open ca file, %w", err)
}
ok := pool.AppendCertsFromPEM(cabs)
if !ok {
return nil, errors.New("Failed loading ca certs")
}
tlsConfig.ClientAuth = tls.RequireAndVerifyClientCert
tlsConfig.ClientCAs = pool
if *certMatch != "" {
rx, err := regexp.Compile(*certMatch)
if err != nil {
return nil, fmt.Errorf("tls.web.certmatch is not a valid regexp, %w", err)
}
tlsConfig.GetConfigForClient = func(hi *tls.ClientHelloInfo) (*tls.Config, error) {
serverConf := tlsConfig.Clone()
serverConf.VerifyPeerCertificate = getClientValidator(rx, hi)
return serverConf, nil
}
}
} else {
if *certMatch != "" {
return nil, errors.New("tls.web.verify must be set to use certificate matching")
}
}
return tlsConfig, nil
}
func runListener(ctx context.Context, name string, lsnr net.Listener, handler http.Handler) error {
srvr := http.Server{
Handler: handler,
}
go func() {
<-ctx.Done()
srvr.Shutdown(context.Background())
}()
if err := srvr.Serve(lsnr); err != nil {
return fmt.Errorf("listener %s stopped, %w", name, err)
}
return nil
}
func main() {
var err error
defer func() {
if err != nil {
log.Errorln(err.Error())
os.Exit(1)
}
}()
flag.Parse()
manageService()
if *printVersion {
fmt.Fprintf(os.Stderr, "Version: %s\n", versionStr())
return
}
cfg, err := setup()
if err != nil {
return
}
tlsConfig, err := setupTLS()
if err != nil {
return
}
if *addr == "" && *tlsAddr == "" {
log.Info("No web addresses to listen on, nothing to do!")
os.Exit(0)
}
var lsnr net.Listener
if *addr != "" {
lsnr, err = net.Listen("tcp", *addr)
if err != nil {
return
}
}
var tlsLsnr net.Listener
if *tlsAddr != "" {
tlsLsnr, err = net.Listen("tcp", *tlsAddr)
if err != nil {
return
}
tlsLsnr = tls.NewListener(tlsLsnr, tlsConfig)
}
http.HandleFunc(cfg.proxyPath, cfg.doProxy)
http.HandleFunc("/", cfg.listModules)
http.Handle(cfg.telemetryPath, promhttp.Handler())
handler := http.Handler(http.DefaultServeMux)
if cfg.bearerToken != "" {
handler = &BearerAuthMiddleware{handler, cfg.bearerToken}
}
if len(acl) > 0 {
log.Infof("Allowing connections only from %v", acl)
handler = &IPAddressAuthMiddleware{handler, acl}
}
log.SetLevel(log.Level(logLevel))
if *logJson {
log.SetFormatter(&log.JSONFormatter{})
}
handler = &AccessLogMiddleware{handler}
eg, ctx := errgroup.WithContext(context.Background())
if lsnr != nil {
eg.Go(func() error {
return runListener(ctx, "http", lsnr, handler)
})
}
if tlsLsnr != nil {
eg.Go(func() error {
return runListener(ctx, "https", tlsLsnr, handler)
})
}
err = eg.Wait()
}
type responseWriterWithStatus struct {
http.ResponseWriter
status int
}
func (w *responseWriterWithStatus) WriteHeader(status int) {
w.status = status
w.ResponseWriter.WriteHeader(status)
}
type AccessLogMiddleware struct {
http.Handler
}
func (middleware AccessLogMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request) {
var (
start = time.Now()
statusWriter = &responseWriterWithStatus{w, http.StatusOK}
)
defer func() {
remoteHost, _, _ := net.SplitHostPort(r.RemoteAddr)
log.Infof(
"%s - %s \"%s\" %d %s (took %s)",
remoteHost, r.Method, r.URL.RequestURI(), statusWriter.status,
http.StatusText(statusWriter.status), time.Now().Sub(start),
)
}()
middleware.Handler.ServeHTTP(statusWriter, r)
}
func (cfg *config) doProxy(w http.ResponseWriter, r *http.Request) {
mod, ok := r.URL.Query()["module"]
if !ok {
log.Errorf("no module given")
http.Error(w, fmt.Sprintf("require parameter module is missing%v\n", mod), http.StatusBadRequest)
return
}
log.Debugf("running module %v\n", mod)
var h http.Handler
if m, ok := cfg.Modules[mod[0]]; !ok {
proxyErrorCount.WithLabelValues("unknown").Inc()
log.Warnf("unknown module requested %v\n", mod)
http.Error(w, fmt.Sprintf("unknown module %v\n", mod), http.StatusNotFound)
return
} else {
h = m
}
h.ServeHTTP(w, r)
}
func (cfg *config) listModules(w http.ResponseWriter, r *http.Request) {
switch r.Header.Get("Accept") {
case "application/json":
log.Debugf("Listing modules in json")
moduleJSON, err := json.Marshal(cfg.Modules)
if err != nil {
log.Error(err)
http.Error(w, "Failed to produce JSON", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.Write(moduleJSON)
default:
log.Debugf("Listing modules in html")
w.Header().Set("Content-Type", "text/html; charset=utf-8")
tmpl := template.Must(template.New("modules").Parse(`
<h2>Exporters:</h2>
<ul>
{{range $name, $cfg := .Modules}}
<li><a href="/proxy?module={{$name}}">{{$name}}</a></li>
{{end}}
</ul>`))
err := tmpl.Execute(w, cfg)
if err != nil {
log.Error(err)
http.Error(w, "Can't execute the template", http.StatusInternalServerError)
}
}
return
}
func (m moduleConfig) ServeHTTP(w http.ResponseWriter, r *http.Request) {
st := time.Now()
defer func() {
proxyDuration.WithLabelValues(m.name).Observe(float64(time.Since(st)) / float64(time.Second))
}()
nr := r
cancel := func() {}
if m.Timeout != 0 {
log.Debugf("setting module %v timeout to %v", m.name, m.Timeout)
var ctx context.Context
ctx, cancel = context.WithTimeout(r.Context(), m.Timeout)
nr = r.WithContext(ctx)
}
defer cancel()
switch m.Method {
case "exec":
m.Exec.mcfg = &m
m.Exec.ServeHTTP(w, nr)
case "http":
m.HTTP.mcfg = &m
m.HTTP.ServeHTTP(w, nr)
default:
log.Errorf("unknown module method %v\n", m.Method)
proxyErrorCount.WithLabelValues(m.name).Inc()
http.Error(w, fmt.Sprintf("unknown module method %v\n", m.Method), http.StatusNotFound)
return
}
}
// StringSliceFlags collects multiple uses of a named flag into a slice.
type StringSliceFlag []string
func (s *StringSliceFlag) String() string {
// Just some representation output, not actually used to parse the input,
// the flag is instead supposed to be specified multiple times.
return strings.Join(*s, ", ")
}
func (s *StringSliceFlag) Set(value string) error {
*s = append(*s, value)
return nil
}
// IPNetSliceFlag parses IP network in CIDR notation into net.IPNet. Can be set
// multiple times
type IPNetSliceFlag []net.IPNet
func (nets IPNetSliceFlag) String() string {
netsStr := make([]string, len(nets))
for i := range nets {
netsStr[i] = fmt.Sprint(nets[i].String())
}
return strings.Join(netsStr, ", ")
}
func (nets *IPNetSliceFlag) Set(value string) error {
if _, net, err := net.ParseCIDR(value); err != nil {
return err
} else {
*nets = append(*nets, *net)
}
return nil
}
type LogLevelFlag log.Level
func (level LogLevelFlag) String() string {
return log.Level(level).String()
}
func (level *LogLevelFlag) Set(value string) error {
if lvl, err := log.ParseLevel(value); err != nil {
return err
} else {
*level = LogLevelFlag(lvl)
}
return nil
}
07070100000011000081A4000003E800000064000000015EB2C5B30000007A000000000000000000000000000000000000002300000000exporter_exporter-0.4.0/service.go// nothing to see here, service control only applies to Windows
// +build !windows
package main
func manageService() {}
07070100000012000081A4000003E800000064000000015EB2C5B300001610000000000000000000000000000000000000002B00000000exporter_exporter-0.4.0/service_windows.gopackage main
import (
"flag"
"fmt"
"os"
"path/filepath"
"time"
"github.com/prometheus/common/log"
"golang.org/x/sys/windows/svc"
"golang.org/x/sys/windows/svc/eventlog"
"golang.org/x/sys/windows/svc/mgr"
)
var (
winSvcCmd = flag.String("winsvc", "", "install, uninstall, start, stop a Windows service")
winSvcRunning = false
)
func manageService() {
const winSvcName = "exporter_exporter"
var err error
switch *winSvcCmd {
case "start":
err = startService(winSvcName)
case "install":
err = installService(winSvcName, "Reverse proxy for Prometheus exporters")
case "uninstall":
err = uninstallService(winSvcName)
case "stop":
err = controlService(winSvcName, svc.Stop, svc.Stopped)
case "":
isIntSess, err := svc.IsAnInteractiveSession()
if err != nil {
log.Fatalf("Failed to determine if we are running in an interactive session: %v", err)
}
if !isIntSess {
go runService(winSvcName)
for {
time.Sleep(time.Millisecond * 200)
if winSvcRunning {
break
}
}
}
return
default:
log.Fatalf("Unknown command '%v' for -winsvc", *winSvcCmd)
}
if err != nil {
log.Fatalf("Failed to %s %s: %v", *winSvcCmd, winSvcName, err)
}
os.Exit(0)
}
func exePath() (string, error) {
prog := os.Args[0]
p, err := filepath.Abs(prog)
if err != nil {
return "", err
}
fi, err := os.Stat(p)
if err == nil {
if !fi.Mode().IsDir() {
return p, nil
}
err = fmt.Errorf("%s is directory", p)
}
if filepath.Ext(p) == "" {
p += ".exe"
fi, err := os.Stat(p)
if err == nil {
if !fi.Mode().IsDir() {
return p, nil
}
err = fmt.Errorf("%s is directory", p)
}
}
return "", err
}
func installService(name, desc string) error {
exepath, err := exePath()
if err != nil {
return fmt.Errorf("Unable to determine path of exe: %v", err)
}
var serviceArgs []string
flag.Visit(func(f *flag.Flag) {
if f.Name != "winsvc" {
serviceArgs = append(serviceArgs, fmt.Sprintf("-%s", f.Name))
if f.Value.String() != "true" {
serviceArgs = append(serviceArgs, f.Value.String())
}
}
})
if len(serviceArgs) <= 0 {
serviceArgs = append(serviceArgs, "-config.file", fmt.Sprintf("%s\\expexp.yaml", filepath.Dir(exepath)))
}
m, err := mgr.Connect()
if err != nil {
return fmt.Errorf("Failed while connecting to service control manager: %v", err)
}
defer m.Disconnect()
s, err := m.OpenService(name)
if err == nil {
s.Close()
return fmt.Errorf("Service with the name '%s' already exists", name)
}
s, err = m.CreateService(name, exepath, mgr.Config{DisplayName: name,
StartType: mgr.StartAutomatic,
Description: desc}, serviceArgs...,
)
if err != nil {
return fmt.Errorf("Failed while creating a new service: %v", err)
}
defer s.Close()
err = eventlog.InstallAsEventCreate(name, eventlog.Error|eventlog.Warning|eventlog.Info)
if err != nil {
s.Delete()
return fmt.Errorf("Failed while creating eventlog source: %v", err)
}
log.Infof("Installed service %s with args: %v", name, serviceArgs)
return nil
}
func uninstallService(name string) error {
controlService(name, svc.Stop, svc.Stopped)
m, err := mgr.Connect()
if err != nil {
return err
}
defer m.Disconnect()
s, err := m.OpenService(name)
if err != nil {
return fmt.Errorf("Failed while retrieving access to the service: %v", err)
}
defer s.Close()
err = s.Delete()
if err != nil {
return err
}
err = eventlog.Remove(name)
if err != nil {
return fmt.Errorf("Failed while removing eventlog source: %v", err)
}
return nil
}
func startService(name string) error {
m, err := mgr.Connect()
if err != nil {
return err
}
defer m.Disconnect()
s, err := m.OpenService(name)
if err != nil {
return fmt.Errorf("Failed while retrieving access to the service: %v", err)
}
defer s.Close()
err = s.Start()
if err != nil {
return fmt.Errorf("Failed while trying to start the service: %v", err)
}
return nil
}
func controlService(name string, c svc.Cmd, to svc.State) error {
m, err := mgr.Connect()
if err != nil {
return err
}
defer m.Disconnect()
s, err := m.OpenService(name)
if err != nil {
return fmt.Errorf("Failed while retrieving access to the service: %v", err)
}
defer s.Close()
status, err := s.Control(c)
if err != nil {
return fmt.Errorf("Failed while sending control %d: %v", c, err)
}
timeout := time.Now().Add(35 * time.Second)
for status.State != to {
if timeout.Before(time.Now()) {
return fmt.Errorf("Failed while waiting for the service to change state to %d", to)
}
time.Sleep(300 * time.Millisecond)
status, err = s.Query()
if err != nil {
return fmt.Errorf("Failed while attempting to retrieve service status: %v", err)
}
}
return nil
}
type exporterExporterService struct {
}
func (s *exporterExporterService) Execute(args []string, r <-chan svc.ChangeRequest, changes chan<- svc.Status) (ssec bool, errno uint32) {
const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown | svc.AcceptPauseAndContinue
changes <- svc.Status{State: svc.StartPending}
changes <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
winSvcRunning = true
loop:
for c := range r {
switch c.Cmd {
case svc.Interrogate:
changes <- c.CurrentStatus
case svc.Stop, svc.Shutdown:
break loop
default:
log.Errorf("Unexpected control request #%d", c)
}
}
changes <- svc.Status{State: svc.StopPending}
return
}
func runService(name string) {
log.Infof("Starting service %s %s", name, Version)
err := svc.Run(name, &exporterExporterService{})
if err != nil {
log.Errorf("%s service failed: %v", name, err)
return
}
log.Infof("%s service stopped", name)
os.Exit(0)
}
07070100000013000081A4000003E800000064000000015EB2C5B300000050000000000000000000000000000000000000002100000000exporter_exporter-0.4.0/tools.go// +build never
package tools
import (
_ "github.com/aktau/github-release"
)
07070100000014000081A4000003E800000064000000015EB2C5B30000031E000000000000000000000000000000000000002300000000exporter_exporter-0.4.0/version.gopackage main
import (
"fmt"
"runtime"
"github.com/prometheus/client_golang/prometheus"
)
var (
Version = "unset"
Revision = "unset"
Branch = "unset"
BuildUser = "unset"
BuildDate = "unset"
GoVersion = runtime.Version()
)
var (
buildInfo = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Name: "build_info",
Help: "A metric with a constant '1' value labeled by version, revision, branch and goversion from which exporter_exporter was built.",
},
[]string{"version", "revision", "branch", "goversion"},
)
)
func init() {
prometheus.MustRegister(buildInfo)
buildInfo.WithLabelValues(Version, Revision, Branch, GoVersion).Set(1)
}
func versionStr() string {
return fmt.Sprintf("%s-%s (from %s, built by %s on %s)", Version, Revision, Branch, BuildUser, BuildDate)
}
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!147 blocks
