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Graceful: Allow graceful restart for fcgi (#9112)

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* Graceful: Allow graceful restart for fcgi

My previous interpretation was incorrect - we do not handle sockets
being passed in over stdin

* Update web.go
This commit is contained in:
zeripath 2019-11-24 10:39:50 +00:00 committed by GitHub
parent d779deef6e
commit 7523314ef8
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 18 additions and 16 deletions
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17
cmd/web.go
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@ -6,9 +6,7 @@ package cmd
import (
"fmt"
"net"
"net/http"
"net/http/fcgi"
_ "net/http/pprof" // Used for debugging if enabled and a web server is running
"os"
"strings"
@ -185,20 +183,7 @@ func runWeb(ctx *cli.Context) error {
err = runHTTPS("tcp", listenAddr, setting.CertFile, setting.KeyFile, context2.ClearHandler(m))
case setting.FCGI:
NoHTTPRedirector()
// FCGI listeners are provided as stdin - this is orthogonal to the LISTEN_FDS approach
// in graceful and systemD
NoMainListener()
var listener net.Listener
listener, err = net.Listen("tcp", listenAddr)
if err != nil {
log.Fatal("Failed to bind %s: %v", listenAddr, err)
}
defer func() {
if err := listener.Close(); err != nil {
log.Fatal("Failed to stop server: %v", err)
}
}()
err = fcgi.Serve(listener, context2.ClearHandler(m))
err = runFCGI(listenAddr, context2.ClearHandler(m))
case setting.UnixSocket:
NoHTTPRedirector()
err = runHTTP("unix", listenAddr, context2.ClearHandler(m))

17
cmd/web_graceful.go
View file

@ -6,9 +6,12 @@ package cmd
import (
"crypto/tls"
"net"
"net/http"
"net/http/fcgi"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
)
func runHTTP(network, listenAddr string, m http.Handler) error {
@ -33,3 +36,17 @@ func NoHTTPRedirector() {
func NoMainListener() {
graceful.Manager.InformCleanup()
}
func runFCGI(listenAddr string, m http.Handler) error {
// This needs to handle stdin as fcgi point
fcgiServer := graceful.NewServer("tcp", listenAddr)
err := fcgiServer.ListenAndServe(func(listener net.Listener) error {
return fcgi.Serve(listener, m)
})
if err != nil {
log.Fatal("Failed to start FCGI main server: %v", err)
}
log.Info("FCGI Listener: %s Closed", listenAddr)
return err
}