From 993f5a2a47ff30c0f5ddfe08fd6e26a89d89a79d Mon Sep 17 00:00:00 2001 From: Ildar Valiullin Date: Mon, 6 Apr 2020 22:04:16 +0300 Subject: [PATCH] initial commit --- .travis.yml | 19 ++++++++++++ go.mod | 8 +++++ go.sum | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++ main.go | 82 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 198 insertions(+) create mode 100644 .travis.yml create mode 100644 go.mod create mode 100644 go.sum create mode 100644 main.go diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..e1943e9 --- /dev/null +++ b/.travis.yml @@ -0,0 +1,19 @@ +language: go + +go: +- 1.13.x + +script: + - go get -v . + - mkdir release + - go build -o release/restic_exporter-${TRAVIS_TAG}-linux-amd64 + +deploy: + provider: releases + skip_cleanup: true + api_key: $GITHUB_TOKEN + keep_history: true + file_glob: true + file: release/* + on: + tags: true diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..d1a1502 --- /dev/null +++ b/go.mod @@ -0,0 +1,8 @@ +module main + +go 1.13 + +require ( + github.com/joho/godotenv v1.3.0 + github.com/prometheus/client_golang v1.5.1 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..270f83f --- /dev/null +++ b/go.sum @@ -0,0 +1,89 @@ +github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= +github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= +github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= +github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= +github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= +github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= +github.com/beorn7/perks v1.0.1 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h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= diff --git a/main.go b/main.go new file mode 100644 index 0000000..1f60470 --- /dev/null +++ b/main.go @@ -0,0 +1,82 @@ +package main + +import ( + "fmt" + "log" + "net/http" + "os" + "os/exec" + "strings" + "time" + + "github.com/joho/godotenv" + + "github.com/prometheus/client_golang/prometheus" + "github.com/prometheus/client_golang/prometheus/promhttp" +) + +var ( + resticCheckExitCode = prometheus.NewGaugeVec( + prometheus.GaugeOpts{ + Name: "restic_check_exit_code", + Help: "restic check command exit code result.", + }, + []string{"prefix"}, + ) +) + +func resticCheck() { + // override restic executable path + resticExecPath := os.Getenv("RESTIC_BINARY_PATH") + if resticExecPath == "" { + resticExecPath = "/usr/local/bin/restic" + } + + godotenv.Load("/etc/default/restic") + godotenv.Load("/etc/default/restic_exporter") + + prefixes := strings.Split(os.Getenv("RESTIC_CHECK_PREFIXES"), ",") + + go func() { + for { + for _, prefix := range prefixes { + os.Setenv( + "RESTIC_REPOSITORY", + fmt.Sprintf("%s/%s", os.Getenv("RESTIC_BUCKET"), prefix)) + + cmd := exec.Command(resticExecPath) + + // 5 attempts before failed state return + for i := 0; i < 5; i++ { + err := cmd.Run() + if err != nil { + log.Printf("check failed: %s\n", err) + } else { + resticCheckExitCode.WithLabelValues(prefix).Set(0) + break + } + + if i < 4 { + time.Sleep(5 * time.Second) + } else { + resticCheckExitCode.WithLabelValues(prefix).Set(1) + } + } + } + + time.Sleep(30 * time.Second) + } + }() +} + +func init() { + prometheus.MustRegister(resticCheckExitCode) +} + +func main() { + resticCheck() + + http.Handle("/metrics", promhttp.Handler()) + log.Println("exporter started") + http.ListenAndServe(":9707", nil) +}