├── README.md ├── .github └── dependabot.yml ├── Dockerfile ├── go.mod ├── consul_exporter.go └── go.sum /README.md: -------------------------------------------------------------------------------- 1 | # consul_exporter 2 | 3 | This simple exporter can run alongside Consul and publish metrics information on a different port instead of through Consul itself. This setup allows access to only the exporter, rather than the full Consul instance. 4 | -------------------------------------------------------------------------------- /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | # To get started with Dependabot version updates, you'll need to specify which 2 | # package ecosystems to update and where the package manifests are located. 3 | # Please see the documentation for all configuration options: 4 | # https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file 5 | 6 | version: 2 7 | updates: 8 | - package-ecosystem: gomod 9 | directory: / 10 | schedule: 11 | interval: daily 12 | time: "09:00" 13 | commit-message: 14 | prefix: "go:" 15 | -------------------------------------------------------------------------------- /Dockerfile: -------------------------------------------------------------------------------- 1 | # Stage 1: Build 2 | FROM golang:1.22-alpine as builder 3 | 4 | WORKDIR /app 5 | 6 | # Copy go.mod and go.sum files 7 | COPY go.mod go.sum ./ 8 | 9 | # Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed 10 | RUN go mod download 11 | 12 | # Copy the source code 13 | COPY . . 14 | 15 | # Build the Go application 16 | RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o consul_exporter . 17 | 18 | # Stage 2: Run 19 | FROM busybox:1.35 20 | 21 | WORKDIR /app 22 | 23 | # Copy the Go binary from the builder stage 24 | COPY --from=builder /app/consul_exporter /app/consul_exporter 25 | 26 | # Expose the port the application runs on 27 | EXPOSE 9107 28 | 29 | # Set the entrypoint to the Go binary 30 | ENTRYPOINT ["./consul_exporter"] 31 | 32 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module consul_exporter 2 | 3 | go 1.24.0 4 | 5 | toolchain go1.24.1 6 | 7 | require github.com/gin-gonic/gin v1.11.0 8 | 9 | require ( 10 | github.com/bytedance/sonic v1.14.0 // indirect 11 | github.com/bytedance/sonic/loader v0.3.0 // indirect 12 | github.com/cloudwego/base64x v0.1.6 // indirect 13 | github.com/gabriel-vasile/mimetype v1.4.8 // indirect 14 | github.com/gin-contrib/sse v1.1.0 // indirect 15 | github.com/go-playground/locales v0.14.1 // indirect 16 | github.com/go-playground/universal-translator v0.18.1 // indirect 17 | github.com/go-playground/validator/v10 v10.27.0 // indirect 18 | github.com/goccy/go-json v0.10.2 // indirect 19 | github.com/goccy/go-yaml v1.18.0 // indirect 20 | github.com/json-iterator/go v1.1.12 // indirect 21 | github.com/klauspost/cpuid/v2 v2.3.0 // indirect 22 | github.com/leodido/go-urn v1.4.0 // indirect 23 | github.com/mattn/go-isatty v0.0.20 // indirect 24 | github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect 25 | github.com/modern-go/reflect2 v1.0.2 // indirect 26 | github.com/pelletier/go-toml/v2 v2.2.4 // indirect 27 | github.com/quic-go/qpack v0.6.0 // indirect 28 | github.com/quic-go/quic-go v0.57.0 // indirect 29 | github.com/twitchyliquid64/golang-asm v0.15.1 // indirect 30 | github.com/ugorji/go/codec v1.3.0 // indirect 31 | golang.org/x/arch v0.20.0 // indirect 32 | golang.org/x/crypto v0.45.0 // indirect 33 | golang.org/x/net v0.47.0 // indirect 34 | golang.org/x/sys v0.38.0 // indirect 35 | golang.org/x/text v0.31.0 // indirect 36 | google.golang.org/protobuf v1.36.9 // indirect 37 | ) 38 | -------------------------------------------------------------------------------- /consul_exporter.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "io/ioutil" 5 | "log" 6 | "net/http" 7 | "os" 8 | 9 | "github.com/gin-gonic/gin" 10 | ) 11 | 12 | const consulURL = "http://localhost:8500/v1/agent/metrics?format=prometheus" 13 | 14 | func main() { 15 | // Get the Consul token from environment variables 16 | consulToken := os.Getenv("CONSUL_TOKEN") 17 | if consulToken == "" { 18 | log.Fatal("CONSUL_TOKEN environment variable is required") 19 | } 20 | 21 | // Create a new Gin router 22 | r := gin.Default() 23 | 24 | r.GET("/metrics", func(c *gin.Context) { 25 | // Make the request to Consul 26 | req, err := http.NewRequest("GET", consulURL, nil) 27 | if err != nil { 28 | c.String(http.StatusInternalServerError, "Error creating request: %v", err) 29 | return 30 | } 31 | 32 | // Add the Consul token to the request header 33 | req.Header.Add("X-Consul-Token", consulToken) 34 | 35 | // Perform the request 36 | client := &http.Client{} 37 | resp, err := client.Do(req) 38 | if err != nil { 39 | c.String(http.StatusInternalServerError, "Error making request to Consul: %v", err) 40 | return 41 | } 42 | defer resp.Body.Close() 43 | 44 | // Check the response status code 45 | if resp.StatusCode != http.StatusOK { 46 | c.String(resp.StatusCode, "Error fetching metrics from Consul: %s", resp.Status) 47 | return 48 | } 49 | 50 | // Read the response body 51 | body, err := ioutil.ReadAll(resp.Body) 52 | if err != nil { 53 | c.String(http.StatusInternalServerError, "Error reading response body: %v", err) 54 | return 55 | } 56 | 57 | // Return the response body as the response 58 | c.Data(http.StatusOK, "text/plain", body) 59 | }) 60 | 61 | // Start the HTTP server 62 | r.Run(":9107") 63 | } 64 | 65 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/bytedance/sonic v1.14.0 h1:/OfKt8HFw0kh2rj8N0F6C/qPGRESq0BbaNZgcNXXzQQ= 2 | github.com/bytedance/sonic v1.14.0/go.mod h1:WoEbx8WTcFJfzCe0hbmyTGrfjt8PzNEBdxlNUO24NhA= 3 | github.com/bytedance/sonic/loader v0.3.0 h1:dskwH8edlzNMctoruo8FPTJDF3vLtDT0sXZwvZJyqeA= 4 | github.com/bytedance/sonic/loader v0.3.0/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI= 5 | github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M= 6 | github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU= 7 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= 9 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 10 | github.com/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM= 11 | github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8= 12 | github.com/gin-contrib/sse v1.1.0 h1:n0w2GMuUpWDVp7qSpvze6fAu9iRxJY4Hmj6AmBOU05w= 13 | github.com/gin-contrib/sse v1.1.0/go.mod h1:hxRZ5gVpWMT7Z0B0gSNYqqsSCNIJMjzvm6fqCz9vjwM= 14 | github.com/gin-gonic/gin v1.11.0 h1:OW/6PLjyusp2PPXtyxKHU0RbX6I/l28FTdDlae5ueWk= 15 | github.com/gin-gonic/gin v1.11.0/go.mod h1:+iq/FyxlGzII0KHiBGjuNn4UNENUlKbGlNmc+W50Dls= 16 | github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s= 17 | github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= 18 | github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= 19 | github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY= 20 | github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY= 21 | github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY= 22 | github.com/go-playground/validator/v10 v10.27.0 h1:w8+XrWVMhGkxOaaowyKH35gFydVHOvC0/uWoy2Fzwn4= 23 | github.com/go-playground/validator/v10 v10.27.0/go.mod h1:I5QpIEbmr8On7W0TktmJAumgzX4CA1XNl4ZmDuVHKKo= 24 | github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU= 25 | github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= 26 | github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw= 27 | 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google.golang.org/protobuf v1.36.9/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU= 82 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 83 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 84 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= 85 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 86 | --------------------------------------------------------------------------------