mirror of
https://github.com/postmannen/ctrl.git
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75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package main
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import (
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"log"
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"net/http"
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"os"
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"os/signal"
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"runtime"
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"time"
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_ "net/http/pprof"
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"github.com/RaaLabs/steward"
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"github.com/pkg/profile"
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)
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// Use ldflags to set version
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// env CONFIGFOLDER=./etc/ go run -ldflags "-X main.version=v0.1.10" --race ./cmd/steward/.
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// or
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// env GOOS=linux GOARCH=amd64 go build -ldflags "-X main.version=v0.1.10" -o steward
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var version string
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func main() {
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defer profile.Start(profile.BlockProfile).Stop()
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//defer profile.Start(profile.CPUProfile, profile.ProfilePath(".")).Stop()
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//defer profile.Start(profile.TraceProfile, profile.ProfilePath(".")).Stop()
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//defer profile.Start(profile.MemProfile, profile.MemProfileRate(1)).Stop()
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c := steward.NewConfiguration()
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err := c.CheckFlags()
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if err != nil {
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log.Printf("%v\n", err)
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return
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}
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// Start profiling if profiling port is specified
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if c.ProfilingPort != "" {
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go func() {
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http.ListenAndServe("localhost:"+c.ProfilingPort, nil)
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}()
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}
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if c.SetBlockProfileRate != 0 {
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runtime.SetBlockProfileRate(c.SetBlockProfileRate)
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}
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s, err := steward.NewServer(c, version)
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if err != nil {
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log.Printf("%v\n", err)
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os.Exit(1)
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}
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// Start up the server
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go s.Start()
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// Wait for ctrl+c to stop the server.
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, os.Interrupt)
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// Block and wait for CTRL+C
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sig := <-sigCh
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log.Printf("Got exit signal, terminating all processes, %v\n", sig)
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// Adding a safety function here so we can make sure that all processes
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// are stopped after a given time if the context cancelation hangs.
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go func() {
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time.Sleep(time.Second * 10)
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log.Printf("error: doing a non graceful shutdown of all processes..\n")
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os.Exit(1)
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}()
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// Stop all processes.
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s.Stop()
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}
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