mirror of
https://github.com/openfaas/faas.git
synced 2025-06-11 01:36:47 +00:00
82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
package main
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import (
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"context"
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"log"
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"net/http"
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"github.com/Sirupsen/logrus"
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faasHandlers "github.com/alexellis/faas/gateway/handlers"
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"github.com/alexellis/faas/gateway/metrics"
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"github.com/docker/docker/client"
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"fmt"
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"github.com/gorilla/mux"
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)
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func main() {
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logger := logrus.Logger{}
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logrus.SetFormatter(&logrus.TextFormatter{})
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osEnv := OsEnv{}
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readConfig := ReadConfig{}
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config := readConfig.Read(osEnv)
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log.Printf("HTTP Read Timeout: %s", config.ReadTimeout)
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log.Printf("HTTP Write Timeout: %s", config.WriteTimeout)
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var dockerClient *client.Client
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var err error
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dockerClient, err = client.NewEnvClient()
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if err != nil {
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log.Fatal("Error with Docker client.")
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}
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dockerVersion, err := dockerClient.ServerVersion(context.Background())
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if err != nil {
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log.Fatal("Error with Docker server.\n", err)
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}
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log.Printf("Docker API version: %s, %s\n", dockerVersion.APIVersion, dockerVersion.Version)
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metricsOptions := metrics.BuildMetricsOptions()
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metrics.RegisterMetrics(metricsOptions)
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r := mux.NewRouter()
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// r.StrictSlash(false) // This didn't work, so register routes twice.
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functionHandler := faasHandlers.MakeProxy(metricsOptions, true, dockerClient, &logger)
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r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}", functionHandler)
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r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/", functionHandler)
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r.HandleFunc("/system/alert", faasHandlers.MakeAlertHandler(dockerClient))
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r.HandleFunc("/system/functions", faasHandlers.MakeFunctionReader(metricsOptions, dockerClient)).Methods("GET")
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r.HandleFunc("/system/functions", faasHandlers.MakeNewFunctionHandler(metricsOptions, dockerClient)).Methods("POST")
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r.HandleFunc("/system/functions", faasHandlers.MakeDeleteFunctionHandler(metricsOptions, dockerClient)).Methods("DELETE")
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fs := http.FileServer(http.Dir("./assets/"))
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r.PathPrefix("/ui/").Handler(http.StripPrefix("/ui", fs)).Methods("GET")
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r.HandleFunc("/", faasHandlers.MakeProxy(metricsOptions, false, dockerClient, &logger)).Methods("POST")
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metricsHandler := metrics.PrometheusHandler()
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r.Handle("/metrics", metricsHandler)
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// This could exist in a separate process - records the replicas of each swarm service.
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functionLabel := "function"
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metrics.AttachSwarmWatcher(dockerClient, metricsOptions, functionLabel)
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r.Handle("/", http.RedirectHandler("/ui/", http.StatusMovedPermanently)).Methods("GET")
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tcpPort := 8080
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s := &http.Server{
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Addr: fmt.Sprintf(":%d", tcpPort),
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ReadTimeout: config.ReadTimeout,
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WriteTimeout: config.WriteTimeout,
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MaxHeaderBytes: http.DefaultMaxHeaderBytes, // 1MB - can be overridden by setting Server.MaxHeaderBytes.
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Handler: r,
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}
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log.Fatal(s.ListenAndServe())
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}
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