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package main
import (
"context"
"crypto/tls"
"embed"
"flag"
"fmt"
"io/fs"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"github.com/gin-contrib/sessions"
"github.com/gin-contrib/sessions/cookie"
"github.com/gin-gonic/gin"
"github.com/seaweedfs/seaweedfs/weed/admin/dash"
)
//go:embed static/* view/*
var adminFS embed.FS
func main() {
var (
port = flag.Int("port", 23646, "Port to run the admin server on")
host = flag.String("host", "localhost", "Host to bind the admin server to")
sessionKey = flag.String("sessionKey", "", "Session encryption key (32 bytes, random if not provided)")
tlsCert = flag.String("tlsCert", "", "Path to TLS certificate file")
tlsKey = flag.String("tlsKey", "", "Path to TLS key file")
master = flag.String("master", "localhost:9333", "SeaweedFS master server address")
authRequired = flag.Bool("auth", false, "Enable authentication")
username = flag.String("username", "admin", "Admin username (only used if auth is enabled)")
password = flag.String("password", "", "Admin password (only used if auth is enabled)")
help = flag.Bool("help", false, "Show help")
)
flag.Parse()
if *help {
fmt.Println("SeaweedFS Admin Server")
fmt.Println()
flag.PrintDefaults()
return
}
// Set Gin mode
gin.SetMode(gin.ReleaseMode)
// Create router
r := gin.New()
r.Use(gin.Logger(), gin.Recovery())
// Session store
var sessionKeyBytes []byte
if *sessionKey != "" {
sessionKeyBytes = []byte(*sessionKey)
} else {
// Generate a random session key
sessionKeyBytes = make([]byte, 32)
for i := range sessionKeyBytes {
sessionKeyBytes[i] = byte(time.Now().UnixNano() & 0xff)
}
}
store := cookie.NewStore(sessionKeyBytes)
r.Use(sessions.Sessions("admin-session", store))
// Static files
staticFS, err := fs.Sub(adminFS, "static")
if err != nil {
log.Fatal("Failed to create static filesystem:", err)
}
r.StaticFS("/static", http.FS(staticFS))
// Templates
viewFS, err := fs.Sub(adminFS, "view")
if err != nil {
log.Fatal("Failed to create view filesystem:", err)
}
// Create admin server
adminServer := dash.NewAdminServer(*master, http.FS(viewFS))
// Setup routes
setupRoutes(r, adminServer, *authRequired, *username, *password)
// Server configuration
addr := fmt.Sprintf("%s:%d", *host, *port)
server := &http.Server{
Addr: addr,
Handler: r,
}
// TLS configuration
if *tlsCert != "" && *tlsKey != "" {
server.TLSConfig = &tls.Config{
MinVersion: tls.VersionTLS12,
}
}
// Start server
go func() {
log.Printf("Starting SeaweedFS Admin Server on %s", addr)
var err error
if *tlsCert != "" && *tlsKey != "" {
log.Printf("Using TLS with cert: %s, key: %s", *tlsCert, *tlsKey)
err = server.ListenAndServeTLS(*tlsCert, *tlsKey)
} else {
err = server.ListenAndServe()
}
if err != nil && err != http.ErrServerClosed {
log.Fatal("Failed to start server:", err)
}
}()
// Wait for interrupt signal to gracefully shutdown the server
quit := make(chan os.Signal, 1)
signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
<-quit
log.Println("Shutting down admin server...")
// Give outstanding requests 30 seconds to complete
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
if err := server.Shutdown(ctx); err != nil {
log.Fatal("Admin server forced to shutdown:", err)
}
log.Println("Admin server exited")
}
func setupRoutes(r *gin.Engine, adminServer *dash.AdminServer, authRequired bool, username, password string) {
// Health check (no auth required)
r.GET("/health", func(c *gin.Context) {
c.JSON(200, gin.H{"status": "ok"})
})
if authRequired {
// Auth routes
auth := r.Group("/")
auth.GET("/login", adminServer.ShowLogin)
auth.POST("/login", adminServer.HandleLogin(username, password))
auth.POST("/logout", adminServer.HandleLogout)
// Protected routes
protected := r.Group("/")
protected.Use(dash.RequireAuth())
// Admin routes
protected.GET("/", adminServer.ShowAdmin)
protected.GET("/admin", adminServer.ShowAdmin)
protected.GET("/overview", adminServer.ShowAdmin)
// Cluster management
cluster := protected.Group("/cluster")
{
cluster.GET("/topology", adminServer.GetClusterTopologyHandler)
cluster.GET("/masters", adminServer.GetMasters)
cluster.GET("/volumes", adminServer.GetVolumeServers)
cluster.POST("/volumes/assign", adminServer.AssignVolume)
}
// Volume management
volumes := protected.Group("/volumes")
{
volumes.GET("/", adminServer.ListVolumes)
volumes.POST("/create", adminServer.CreateVolume)
volumes.DELETE("/:id", adminServer.DeleteVolume)
volumes.POST("/:id/replicate", adminServer.ReplicateVolume)
}
// File browser
files := protected.Group("/filer")
{
files.GET("/*path", adminServer.BrowseFiles)
files.POST("/upload", adminServer.UploadFile)
files.DELETE("/*path", adminServer.DeleteFile)
}
// Metrics
metrics := protected.Group("/metrics")
{
metrics.GET("/", adminServer.ShowMetrics)
metrics.GET("/data", adminServer.GetMetricsData)
}
// Maintenance
maintenance := protected.Group("/maintenance")
{
maintenance.POST("/gc", adminServer.TriggerGC)
maintenance.POST("/compact", adminServer.CompactVolumes)
maintenance.GET("/status", adminServer.GetMaintenanceStatus)
}
} else {
// No auth required - all routes are public
r.GET("/", adminServer.ShowAdmin)
r.GET("/admin", adminServer.ShowAdmin)
r.GET("/overview", adminServer.ShowAdmin)
// Cluster management
cluster := r.Group("/cluster")
{
cluster.GET("/topology", adminServer.GetClusterTopologyHandler)
cluster.GET("/masters", adminServer.GetMasters)
cluster.GET("/volumes", adminServer.GetVolumeServers)
cluster.POST("/volumes/assign", adminServer.AssignVolume)
}
// Volume management
volumes := r.Group("/volumes")
{
volumes.GET("/", adminServer.ListVolumes)
volumes.POST("/create", adminServer.CreateVolume)
volumes.DELETE("/:id", adminServer.DeleteVolume)
volumes.POST("/:id/replicate", adminServer.ReplicateVolume)
}
// File browser
files := r.Group("/filer")
{
files.GET("/*path", adminServer.BrowseFiles)
files.POST("/upload", adminServer.UploadFile)
files.DELETE("/*path", adminServer.DeleteFile)
}
// Metrics
metrics := r.Group("/metrics")
{
metrics.GET("/", adminServer.ShowMetrics)
metrics.GET("/data", adminServer.GetMetricsData)
}
// Maintenance
maintenance := r.Group("/maintenance")
{
maintenance.POST("/gc", adminServer.TriggerGC)
maintenance.POST("/compact", adminServer.CompactVolumes)
maintenance.GET("/status", adminServer.GetMaintenanceStatus)
}
}
}
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