mirror of
https://github.com/0ceanSlim/grain.git
synced 2024-11-21 16:17:13 +00:00
config watcher, restart server on change
This commit is contained in:
parent
d81d78e25f
commit
22729612ff
2
go.mod
2
go.mod
@ -12,6 +12,7 @@ require (
|
||||
require (
|
||||
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
|
||||
github.com/kr/pretty v0.3.1 // indirect
|
||||
golang.org/x/sys v0.22.0 // indirect
|
||||
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
|
||||
)
|
||||
|
||||
@ -31,4 +32,5 @@ require (
|
||||
golang.org/x/sync v0.7.0 // indirect
|
||||
golang.org/x/text v0.16.0 // indirect
|
||||
golang.org/x/time v0.5.0
|
||||
gopkg.in/fsnotify.v1 v1.4.7
|
||||
)
|
||||
|
||||
4
go.sum
4
go.sum
@ -21,6 +21,7 @@ github.com/decred/dcrd/crypto/blake256 v1.0.0 h1:/8DMNYp9SGi5f0w7uCm6d6M4OU2rGFK
|
||||
github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
|
||||
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 h1:YLtO71vCjJRCBcrPMtQ9nqBsqpA1m5sE92cU+pd5Mcc=
|
||||
github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1/go.mod h1:hyedUtir6IdtD/7lIxGeCxkaw7y45JueMRL4DIyJDKs=
|
||||
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
|
||||
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
|
||||
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
|
||||
@ -82,6 +83,8 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
|
||||
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
|
||||
golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
|
||||
golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
@ -99,6 +102,7 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
|
||||
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
|
||||
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
|
||||
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
|
||||
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
|
||||
88
main.go
88
main.go
@ -11,6 +11,10 @@ import (
|
||||
"grain/server/utils"
|
||||
"log"
|
||||
"net/http"
|
||||
"os"
|
||||
"os/signal"
|
||||
"sync"
|
||||
"syscall"
|
||||
"time"
|
||||
|
||||
"golang.org/x/net/websocket"
|
||||
@ -20,28 +24,51 @@ func main() {
|
||||
utils.EnsureFileExists("config.yml", "app/static/examples/config.example.yml")
|
||||
utils.EnsureFileExists("relay_metadata.json", "app/static/examples/relay_metadata.example.json")
|
||||
|
||||
cfg, err := config.LoadConfig("config.yml")
|
||||
if err != nil {
|
||||
log.Fatal("Error loading config: ", err)
|
||||
restartChan := make(chan struct{})
|
||||
go utils.WatchConfigFile("config.yml", restartChan)
|
||||
|
||||
signalChan := make(chan os.Signal, 1)
|
||||
signal.Notify(signalChan, syscall.SIGINT, syscall.SIGTERM)
|
||||
|
||||
var wg sync.WaitGroup
|
||||
for {
|
||||
wg.Add(1)
|
||||
cfg, err := config.LoadConfig("config.yml")
|
||||
if err != nil {
|
||||
log.Fatal("Error loading config: ", err)
|
||||
}
|
||||
|
||||
client, err := db.InitDB(cfg)
|
||||
if err != nil {
|
||||
log.Fatal("Error initializing database: ", err)
|
||||
}
|
||||
|
||||
config.SetupRateLimiter(cfg)
|
||||
config.SetupSizeLimiter(cfg)
|
||||
|
||||
err = utils.LoadRelayMetadataJSON()
|
||||
if err != nil {
|
||||
log.Fatal("Failed to load relay metadata: ", err)
|
||||
}
|
||||
|
||||
mux := setupRoutes()
|
||||
server := startServer(cfg, mux, &wg)
|
||||
|
||||
select {
|
||||
case <-restartChan:
|
||||
log.Println("Restarting server...")
|
||||
server.Close()
|
||||
db.DisconnectDB(client)
|
||||
wg.Wait() // Wait for the server to fully shut down before restarting
|
||||
time.Sleep(3 * time.Second) // Add a delay before restarting
|
||||
case <-signalChan:
|
||||
log.Println("Shutting down server...")
|
||||
server.Close()
|
||||
db.DisconnectDB(client)
|
||||
wg.Wait() // Wait for the server to fully shut down before exiting
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
client, err := db.InitDB(cfg)
|
||||
if err != nil {
|
||||
log.Fatal("Error initializing database: ", err)
|
||||
}
|
||||
defer db.DisconnectDB(client)
|
||||
|
||||
config.SetupRateLimiter(cfg)
|
||||
config.SetupSizeLimiter(cfg)
|
||||
|
||||
err = utils.LoadRelayMetadataJSON()
|
||||
if err != nil {
|
||||
log.Fatal("Failed to load relay metadata: ", err)
|
||||
}
|
||||
|
||||
mux := setupRoutes()
|
||||
|
||||
startServer(cfg, mux)
|
||||
}
|
||||
|
||||
func setupRoutes() *http.ServeMux {
|
||||
@ -56,7 +83,7 @@ func setupRoutes() *http.ServeMux {
|
||||
return mux
|
||||
}
|
||||
|
||||
func startServer(config *configTypes.ServerConfig, mux *http.ServeMux) {
|
||||
func startServer(config *configTypes.ServerConfig, mux *http.ServeMux, wg *sync.WaitGroup) *http.Server {
|
||||
server := &http.Server{
|
||||
Addr: config.Server.Port,
|
||||
Handler: mux,
|
||||
@ -64,11 +91,16 @@ func startServer(config *configTypes.ServerConfig, mux *http.ServeMux) {
|
||||
WriteTimeout: time.Duration(config.Server.WriteTimeout) * time.Second,
|
||||
IdleTimeout: time.Duration(config.Server.IdleTimeout) * time.Second,
|
||||
}
|
||||
fmt.Printf("Server is running on http://localhost%s\n", config.Server.Port)
|
||||
err := server.ListenAndServe()
|
||||
if err != nil {
|
||||
fmt.Println("Error starting server:", err)
|
||||
}
|
||||
|
||||
go func() {
|
||||
defer wg.Done() // Notify that the server is done shutting down
|
||||
fmt.Printf("Server is running on http://localhost%s\n", config.Server.Port)
|
||||
err := server.ListenAndServe()
|
||||
if err != nil && err != http.ErrServerClosed {
|
||||
fmt.Println("Error starting server:", err)
|
||||
}
|
||||
}()
|
||||
return server
|
||||
}
|
||||
|
||||
var wsServer = &websocket.Server{
|
||||
@ -87,4 +119,4 @@ func ListenAndServe(w http.ResponseWriter, r *http.Request) {
|
||||
} else {
|
||||
routes.IndexHandler(w, r)
|
||||
}
|
||||
}
|
||||
}
|
||||
52
server/utils/watchConfig.go
Normal file
52
server/utils/watchConfig.go
Normal file
@ -0,0 +1,52 @@
|
||||
package utils
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
"time"
|
||||
|
||||
"gopkg.in/fsnotify.v1"
|
||||
)
|
||||
|
||||
func WatchConfigFile(filePath string, restartChan chan<- struct{}) {
|
||||
watcher, err := fsnotify.NewWatcher()
|
||||
if err != nil {
|
||||
log.Fatal("Error creating file watcher:", err)
|
||||
}
|
||||
defer watcher.Close()
|
||||
|
||||
err = watcher.Add(filePath)
|
||||
if err != nil {
|
||||
log.Fatal("Error adding file to watcher:", err)
|
||||
}
|
||||
|
||||
var debounceTimer *time.Timer
|
||||
debounceDuration := 1 * time.Second // Adjust this duration as needed
|
||||
|
||||
for {
|
||||
select {
|
||||
case event, ok := <-watcher.Events:
|
||||
if !ok {
|
||||
return
|
||||
}
|
||||
if event.Op&fsnotify.Write == fsnotify.Write {
|
||||
if debounceTimer != nil {
|
||||
debounceTimer.Stop() // Cancel the previous timer
|
||||
}
|
||||
debounceTimer = time.AfterFunc(debounceDuration, func() {
|
||||
fmt.Println("Config file modified, restarting server...")
|
||||
select {
|
||||
case restartChan <- struct{}{}:
|
||||
default:
|
||||
// Skip sending restart signal if there's already one in the channel
|
||||
}
|
||||
})
|
||||
}
|
||||
case err, ok := <-watcher.Errors:
|
||||
if !ok {
|
||||
return
|
||||
}
|
||||
log.Println("Error watching file:", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user