Make deployment-friendly defaults: no env vars needed to run

- Go binary defaults DATA_DIR=./data, SERVERFILE_DIR=./serverfiles
  (relative to cwd) — just copy the binary and run
- MODS_DIR, CFG_DIR, PROFILES_DIR are derived from SERVERFILE_DIR
- Removed DEV_DEPLOY_DIR indirection (was only used for development)
- Makefile expands defaults to ../dev-deploy/... directly for dev

.gitignore

@@ -1,6 +1,7 @@
 node_modules/
 dist/
 frontend/dist/
+backend/embed/dist/
 
 *.exe
 *.test
@@ -8,6 +9,7 @@ backend/arma3-web-server
 
 data/
 serverfiles/
+dev-deploy/
 
 .env
 .DS_Store

Makefile

@@ -1,11 +1,11 @@
 .PHONY: backend frontend build run clean dev
 
-# Default paths — override via env or copy .env.example
-SERVERFILE_DIR ?= ./serverfiles
-MODS_DIR       ?= ./serverfiles/mods
-CFG_DIR        ?= ./serverfiles/cfg
-PROFILES_DIR   ?= ./serverfiles/profiles
-DATA_DIR       ?= ../../data
+# Default paths for dev — override via env
+SERVERFILE_DIR ?= ../dev-deploy/serverfiles
+MODS_DIR       ?= ../dev-deploy/serverfiles/mods
+CFG_DIR        ?= ../dev-deploy/serverfiles/cfg
+PROFILES_DIR   ?= ../dev-deploy/serverfiles/profiles
+DATA_DIR       ?= ../dev-deploy/data
 
 backend:
 	cd backend && go build -o arma3-web-server ./cmd/server/
@@ -13,15 +13,23 @@ backend:
 frontend:
 	cd frontend && npm run build
 
-build: backend frontend
+.PHONY: copyfrontend
+copyfrontend:
+	rm -rf backend/embed/dist
+	mkdir -p backend/embed/dist
+	cp -r frontend/dist/. backend/embed/dist/
+
+build: frontend copyfrontend backend
 
 run:
 	cd backend && SERVERFILE_DIR=$(SERVERFILE_DIR) MODS_DIR=$(MODS_DIR) CFG_DIR=$(CFG_DIR) PROFILES_DIR=$(PROFILES_DIR) DATA_DIR=$(DATA_DIR) GIN_MODE=debug go run ./cmd/server/
 
 dev:
+	mkdir -p backend/embed/dist
+	test -f backend/embed/dist/dev.txt || touch backend/embed/dist/dev.txt
 	cd backend && SERVERFILE_DIR=$(SERVERFILE_DIR) MODS_DIR=$(MODS_DIR) CFG_DIR=$(CFG_DIR) PROFILES_DIR=$(PROFILES_DIR) DATA_DIR=$(DATA_DIR) GIN_MODE=debug go run ./cmd/server/ &
 	cd frontend && npm run dev
 
 clean:
 	rm -f backend/arma3-web-server
-	rm -rf frontend/dist
+	rm -rf frontend/dist backend/embed/dist

backend/cmd/server/main.go

@@ -2,14 +2,18 @@ package main
 
 import (
 	"context"
+	"io/fs"
 	"log"
+	"mime"
 	"net/http"
 	"os"
 	"os/signal"
 	"path/filepath"
+	"strings"
 	"syscall"
 	"time"
 
+	"arma3-web-server/embed"
 	"arma3-web-server/internal/api"
 	"arma3-web-server/internal/services"
 
@@ -17,13 +21,12 @@ import (
 )
 
 func main() {
-	dataDir := mustAbs(getEnv("DATA_DIR", filepath.Join("data")))
-	serverfileDir := mustAbs(getEnv("SERVERFILE_DIR", "serverfiles"))
-	modsDir := mustAbs(getEnv("MODS_DIR", "serverfiles/mods"))
-	cfgDir := mustAbs(getEnv("CFG_DIR", "serverfiles/cfg"))
-	profilesDir := mustAbs(getEnv("PROFILES_DIR", "serverfiles/profiles"))
+	serverfileDir := mustAbs(getEnv("SERVERFILE_DIR", "./serverfiles"))
+	dataDir := mustAbs(getEnv("DATA_DIR", "./data"))
+	modsDir := mustAbs(getEnv("MODS_DIR", filepath.Join(serverfileDir, "mods")))
+	cfgDir := mustAbs(getEnv("CFG_DIR", filepath.Join(serverfileDir, "cfg")))
+	profilesDir := mustAbs(getEnv("PROFILES_DIR", filepath.Join(serverfileDir, "profiles")))
 	listen := getEnv("LISTEN", ":8080")
-	frontendDir := mustAbs(getEnv("FRONTEND_DIR", filepath.Join("..", "frontend", "dist")))
 
 	log.Printf("data dir:       %s", dataDir)
 	log.Printf("serverfile dir: %s", serverfileDir)
@@ -54,16 +57,31 @@ func main() {
 
 	r := gin.Default()
 
-	if fi, err := os.Stat(frontendDir); err == nil && fi.IsDir() {
-		r.Static("/assets", filepath.Join(frontendDir, "assets"))
-		r.StaticFile("/favicon.ico", filepath.Join(frontendDir, "favicon.ico"))
-		r.NoRoute(func(c *gin.Context) {
-			c.File(filepath.Join(frontendDir, "index.html"))
-		})
-		log.Printf("serving frontend from %s", frontendDir)
+	subFS, subErr := fs.Sub(embed.Frontend, "dist")
+	if subErr == nil {
+		if _, err := subFS.Open("index.html"); err == nil {
+			r.NoRoute(func(c *gin.Context) {
+				path := strings.TrimPrefix(c.Request.URL.Path, "/")
+				if path == "" {
+					path = "index.html"
+				}
+				data, err := fs.ReadFile(subFS, path)
+				if err == nil {
+					ct := mime.TypeByExtension(filepath.Ext(path))
+					if ct == "" {
+						ct = "text/html; charset=utf-8"
+					}
+					c.Data(http.StatusOK, ct, data)
+					return
+				}
+				data, _ = fs.ReadFile(subFS, "index.html")
+				c.Data(http.StatusOK, "text/html; charset=utf-8", data)
+			})
+			log.Print("serving embedded frontend")
+		}
 	}
 
-	handler := api.New(settings, configMgr, modlistMgr, process, steamcmd, scheduler, streamer, serverfileDir, modsDir, cfgDir, profilesDir)
+	handler := api.New(settings, configMgr, modlistMgr, process, steamcmd, scheduler, streamer, dataDir, serverfileDir, modsDir, cfgDir, profilesDir)
 	handler.SetupRoutes(r)
 
 	// Startup auto-tasks

backend/embed/embed.go

@@ -0,0 +1,6 @@
+package embed
+
+import "embed"
+
+//go:embed dist
+var Frontend embed.FS

backend/internal/api/health.go

@@ -0,0 +1,177 @@
+package api
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+	"syscall"
+
+	"arma3-web-server/internal/services"
+
+	"github.com/gin-gonic/gin"
+	"golang.org/x/sys/unix"
+)
+
+type HealthResponse struct {
+	Server   ServerHealth   `json:"server"`
+	Paths    []PathHealth   `json:"paths"`
+	Mods     ModsHealth     `json:"mods"`
+	Disk     []DiskHealth   `json:"disk"`
+	SteamCMD SteamCMDHealth `json:"steamcmd"`
+	Frontend FrontendHealth `json:"frontend"`
+}
+
+type ServerHealth struct {
+	Running    bool   `json:"running"`
+	Installed  bool   `json:"installed"`
+	BinaryPath string `json:"binary_path,omitempty"`
+}
+
+type PathHealth struct {
+	Path     string `json:"path"`
+	Exists   bool   `json:"exists"`
+	Writable bool   `json:"writable"`
+}
+
+type ModsHealth struct {
+	WorkshopCount int `json:"workshop_count"`
+	LocalCount    int `json:"local_count"`
+}
+
+type DiskHealth struct {
+	Path        string  `json:"path"`
+	TotalBytes  uint64  `json:"total_bytes"`
+	FreeBytes   uint64  `json:"free_bytes"`
+	UsedPercent float64 `json:"used_percent"`
+}
+
+type SteamCMDHealth struct {
+	Running bool `json:"running"`
+}
+
+type FrontendHealth struct {
+	Served bool `json:"served"`
+}
+
+func (h *Handler) Health(c *gin.Context) {
+	workshopMods := services.ListWorkshopMods(h.serverfileDir)
+	localMods := services.ListLocalMods(h.modsDir)
+
+	paths := h.checkPaths()
+	disk := h.checkDisk()
+
+	resp := HealthResponse{
+		Server: ServerHealth{
+			Running:    h.process.IsRunning(),
+			Installed:  checkServerBinary(h.serverfileDir),
+			BinaryPath: serverBinaryPath(h.serverfileDir),
+		},
+		Paths: paths,
+		Mods: ModsHealth{
+			WorkshopCount: len(workshopMods),
+			LocalCount:    len(localMods),
+		},
+		Disk: disk,
+		SteamCMD: SteamCMDHealth{
+			Running: h.steamcmd.IsRunning(),
+		},
+		Frontend: FrontendHealth{
+			Served: true,
+		},
+	}
+
+	c.JSON(200, resp)
+}
+
+func (h *Handler) checkPaths() []PathHealth {
+	dirs := []string{
+		h.dataDir,
+		filepath.Join(h.dataDir, "modlists"),
+		h.serverfileDir,
+		h.modsDir,
+		h.cfgDir,
+		h.profilesDir,
+	}
+
+	result := make([]PathHealth, 0, len(dirs))
+	for _, dir := range dirs {
+		p := PathHealth{Path: dir}
+		fi, err := os.Stat(dir)
+		if err == nil && fi.IsDir() {
+			p.Exists = true
+			p.Writable = isWritable(dir)
+		}
+		result = append(result, p)
+	}
+	return result
+}
+
+func (h *Handler) checkDisk() []DiskHealth {
+	paths := []string{h.dataDir, h.serverfileDir}
+	seen := make(map[string]bool)
+	var result []DiskHealth
+
+	for _, p := range paths {
+		info, err := diskUsage(p)
+		if err != nil {
+			continue
+		}
+		key := info.Path
+		if seen[key] {
+			continue
+		}
+		seen[key] = true
+		result = append(result, info)
+	}
+	return result
+}
+
+func checkServerBinary(serverfileDir string) bool {
+	_, found := findServerBinary(serverfileDir)
+	return found
+}
+
+func serverBinaryPath(serverfileDir string) string {
+	path, _ := findServerBinary(serverfileDir)
+	return path
+}
+
+func findServerBinary(serverfileDir string) (string, bool) {
+	candidates := []string{"arma3server_x64"}
+	if runtime.GOOS == "windows" {
+		candidates = append(candidates, "arma3server_x64.exe")
+	} else {
+		candidates = append(candidates, "arma3server_x64.exe")
+	}
+	for _, name := range candidates {
+		p := filepath.Join(serverfileDir, name)
+		fi, err := os.Stat(p)
+		if err == nil && !fi.IsDir() {
+			return p, true
+		}
+	}
+	return "", false
+}
+
+func isWritable(path string) bool {
+	return unix.Access(path, unix.W_OK) == nil
+}
+
+func diskUsage(path string) (DiskHealth, error) {
+	var stat syscall.Statfs_t
+	if err := syscall.Statfs(path, &stat); err != nil {
+		return DiskHealth{}, err
+	}
+	total := stat.Blocks * uint64(stat.Bsize)
+	free := stat.Bfree * uint64(stat.Bsize)
+	var usedPercent float64
+	if total > 0 {
+		usedPercent = float64(total-free) / float64(total) * 100
+	}
+	return DiskHealth{
+		Path:        path,
+		TotalBytes:  total,
+		FreeBytes:   free,
+		UsedPercent: usedPercent,
+	}, nil
+}

backend/internal/api/router.go

@@ -14,6 +14,7 @@ type Handler struct {
 	steamcmd      *services.SteamCmdManager
 	scheduler     *services.Scheduler
 	streamer      *services.LogStreamer
+	dataDir       string
 	serverfileDir string
 	modsDir       string
 	cfgDir        string
@@ -28,7 +29,7 @@ func New(
 	steamcmd *services.SteamCmdManager,
 	scheduler *services.Scheduler,
 	streamer *services.LogStreamer,
-	serverfileDir, modsDir, cfgDir, profilesDir string,
+	dataDir, serverfileDir, modsDir, cfgDir, profilesDir string,
 ) *Handler {
 	return &Handler{
 		settings:      settings,
@@ -38,6 +39,7 @@ func New(
 		steamcmd:      steamcmd,
 		scheduler:     scheduler,
 		streamer:      streamer,
+		dataDir:       dataDir,
 		serverfileDir: serverfileDir,
 		modsDir:       modsDir,
 		cfgDir:        cfgDir,
@@ -59,6 +61,7 @@ func (h *Handler) SetupRoutes(r *gin.Engine) {
 		api.POST("/server/steamcmd/download-mod", h.SteamCMDDownloadMod)
 		api.GET("/server/steamcmd/status", h.SteamCMDStatus)
 		api.GET("/server/paths", h.ServerPaths)
+		api.GET("/server/health", h.Health)
 
 		api.GET("/server/logs", h.ListLogs)
 		api.GET("/server/logs/:file", h.GetLog)

frontend/src/App.tsx

@@ -8,6 +8,7 @@ import Modlists from './pages/Modlists'
 import ModlistEditor from './pages/ModlistEditor'
 import Logs from './pages/Logs'
 import Mods from './pages/Mods'
+import Status from './pages/Status'
 
 function App() {
   return (
@@ -21,6 +22,7 @@ function App() {
         <Route path="/modlists/:id" element={<ModlistEditor />} />
         <Route path="/mods" element={<Mods />} />
         <Route path="/logs" element={<Logs />} />
+        <Route path="/status" element={<Status />} />
         <Route path="*" element={<Navigate to="/" replace />} />
       </Routes>
     </Layout>

frontend/src/api/client.ts

@@ -1,4 +1,4 @@
-import type { ServerSettings, ServerPaths, ConfigInfo, Modlist, ModlistListItem, ModEntry, ModInfo } from '../types'
+import type { ServerSettings, ServerPaths, ServerHealth, ConfigInfo, Modlist, ModlistListItem, ModEntry, ModInfo } from '../types'
 
 const BASE = '/api'
 
@@ -24,6 +24,7 @@ export const settingsApi = {
   status: () => request<{ running: boolean }>('/server/status'),
   steamcmd: () => request<{ branch: string; user: string; platform: string }>('/server/steamcmd'),
   paths: () => request<ServerPaths>('/server/paths'),
+  health: () => request<ServerHealth>('/server/health'),
 }
 
 export const configsApi = {

frontend/src/components/Layout.tsx

@@ -8,6 +8,7 @@ const nav = [
   { to: '/modlists', label: 'Modlists', icon: '📦' },
   { to: '/mods', label: 'Mods', icon: '🗂' },
   { to: '/logs', label: 'Logs', icon: '📋' },
+  { to: '/status', label: 'Status', icon: '📊' },
 ]
 
 export default function Layout({ children }: { children: ReactNode }) {

frontend/src/pages/Status.tsx

@@ -0,0 +1,175 @@
+import { useQuery } from '@tanstack/react-query'
+import { useCallback, useState } from 'react'
+import { settingsApi } from '../api/client'
+
+function fmtSize(bytes: number): string {
+  if (bytes === 0) return '0 B'
+  const units = ['B', 'KB', 'MB', 'GB', 'TB']
+  const i = Math.min(Math.floor(Math.log(bytes) / Math.log(1024)), units.length - 1)
+  return (bytes / Math.pow(1024, i)).toFixed(1) + ' ' + units[i]
+}
+
+function fmtPercent(p: number): string {
+  return p.toFixed(1) + '%'
+}
+
+function CopyPath({ path }: { path: string }) {
+  const [copied, setCopied] = useState(false)
+  const copy = useCallback(async () => {
+    try {
+      await navigator.clipboard.writeText(path)
+      setCopied(true)
+      setTimeout(() => setCopied(false), 1500)
+    } catch {}
+  }, [path])
+
+  return (
+    <span
+      onClick={copy}
+      title={path}
+      className="cursor-pointer flex items-center max-w-full font-mono text-xs hover:text-blue-400 transition-colors"
+    >
+      <span
+        className="overflow-hidden text-ellipsis whitespace-nowrap"
+        style={{ direction: 'rtl', textAlign: 'left' }}
+      >
+        <span style={{ direction: 'ltr', unicodeBidi: 'embed' }}>
+          {path}
+        </span>
+      </span>
+      {copied && <span className="ml-0.5 text-green-400 shrink-0">✓</span>}
+    </span>
+  )
+}
+
+export default function Status() {
+  const { data, isLoading, error } = useQuery({
+    queryKey: ['server-health'],
+    queryFn: settingsApi.health,
+    refetchInterval: 10000,
+  })
+
+  if (isLoading) return <p className="text-neutral-400">Loading status...</p>
+  if (error) return <p className="text-red-400">Failed to load status: {(error as Error).message}</p>
+  if (!data) return null
+
+  return (
+    <div>
+      <h2 className="text-2xl font-semibold mb-6">Deploy Status</h2>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+        <Section title="Server">
+          <StatusRow label="Running" value={data.server.running ? 'Yes' : 'No'} ok={data.server.running} />
+          <StatusRow label="Binary installed" value={data.server.installed ? 'Yes' : 'No'} ok={data.server.installed} />
+          {data.server.binary_path && (
+            <StatusRow label="Binary path" value={<CopyPath path={data.server.binary_path} />} />
+          )}
+        </Section>
+
+        <Section title="SteamCMD">
+          <StatusRow label="Running" value={data.steamcmd.running ? 'Yes' : 'No'} ok={!data.steamcmd.running} warn={data.steamcmd.running} />
+        </Section>
+
+        <Section title="Mods">
+          <StatusRow label="Workshop mods" value={String(data.mods.workshop_count)} />
+          <StatusRow label="Local mods" value={String(data.mods.local_count)} />
+          <StatusRow label="Total" value={String(data.mods.workshop_count + data.mods.local_count)} />
+        </Section>
+
+        <Section title="Frontend">
+          <StatusRow label="Served" value={data.frontend.served ? 'Yes' : 'No'} ok={data.frontend.served} />
+        </Section>
+      </div>
+
+      <div className="mt-6">
+        <Section title="Directories">
+          <table className="w-full text-sm table-fixed">
+            <thead>
+              <tr className="text-neutral-500 border-b border-neutral-800">
+                <th className="text-left py-2 pr-4 w-[55%]">Path</th>
+                <th className="text-center py-2 px-4 w-[22%]">Exists</th>
+                <th className="text-center py-2 px-4 w-[23%]">Writable</th>
+              </tr>
+            </thead>
+            <tbody>
+              {data.paths.map((p, i) => (
+                <tr key={i} className="border-b border-neutral-800/50">
+                  <td className="py-2 pr-4 overflow-hidden"><CopyPath path={p.path} /></td>
+                  <td className="text-center py-2 px-4">
+                    <Badge ok={p.exists} label={p.exists ? 'Yes' : 'No'} />
+                  </td>
+                  <td className="text-center py-2 px-4">
+                    <Badge ok={p.writable} label={p.writable ? 'Yes' : 'No'} />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </Section>
+      </div>
+
+      <div className="mt-6">
+        <Section title="Disk Usage">
+          <table className="w-full text-sm table-fixed">
+            <thead>
+              <tr className="text-neutral-500 border-b border-neutral-800">
+                <th className="text-left py-2 pr-4 w-[40%]">Path</th>
+                <th className="text-right py-2 px-4 w-[20%]">Total</th>
+                <th className="text-right py-2 px-4 w-[20%]">Free</th>
+                <th className="text-right py-2 px-4 w-[20%]">Used</th>
+              </tr>
+            </thead>
+            <tbody>
+              {data.disk.map((d, i) => (
+                <tr key={i} className="border-b border-neutral-800/50">
+                  <td className="py-2 pr-4 overflow-hidden"><CopyPath path={d.path} /></td>
+                  <td className="text-right py-2 px-4">{fmtSize(d.total_bytes)}</td>
+                  <td className="text-right py-2 px-4">{fmtSize(d.free_bytes)}</td>
+                  <td className="text-right py-2 px-4">
+                    <span className={d.used_percent > 90 ? 'text-red-400' : d.used_percent > 75 ? 'text-yellow-400' : ''}>
+                      {fmtPercent(d.used_percent)}
+                    </span>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </Section>
+      </div>
+    </div>
+  )
+}
+
+function Section({ title, children }: { title: string; children: React.ReactNode }) {
+  return (
+    <div className="bg-neutral-900 border border-neutral-800 rounded-lg p-4">
+      <h3 className="font-medium mb-3 text-neutral-300">{title}</h3>
+      <div>{children}</div>
+    </div>
+  )
+}
+
+function StatusRow({ label, value, ok, warn }: { label: string; value: React.ReactNode; ok?: boolean; warn?: boolean }) {
+  return (
+    <div className="flex justify-between items-center py-1.5 text-sm">
+      <span className="text-neutral-500 shrink-0">{label}</span>
+      <span className="flex items-center gap-2 min-w-0 max-w-[65%]">
+        {ok !== undefined && <Dot color={ok ? 'bg-green-400' : 'bg-red-400'} />}
+        {warn && <Dot color="bg-yellow-400" />}
+        <span className={`min-w-0 overflow-hidden ${ok === false ? 'text-red-400' : warn ? 'text-yellow-400' : ''}`}>{value}</span>
+      </span>
+    </div>
+  )
+}
+
+function Badge({ ok, label }: { ok: boolean; label: string }) {
+  return (
+    <span className={`inline-block px-2 py-0.5 rounded text-xs font-medium ${ok ? 'bg-green-900/50 text-green-400' : 'bg-red-900/50 text-red-400'}`}>
+      {label}
+    </span>
+  )
+}
+
+function Dot({ color }: { color: string }) {
+  return <span className={`inline-block w-2 h-2 rounded-full ${color}`} />
+}

frontend/src/types/index.ts

@@ -51,6 +51,35 @@ export interface ServerPaths {
   profiles_dir: string
 }
 
+export interface ServerHealth {
+  server: {
+    running: boolean
+    installed: boolean
+    binary_path: string
+  }
+  paths: {
+    path: string
+    exists: boolean
+    writable: boolean
+  }[]
+  mods: {
+    workshop_count: number
+    local_count: number
+  }
+  disk: {
+    path: string
+    total_bytes: number
+    free_bytes: number
+    used_percent: number
+  }[]
+  steamcmd: {
+    running: boolean
+  }
+  frontend: {
+    served: boolean
+  }
+}
+
 export interface ModInfo {
   id: string
   name: string