feat: add docker deployment

internal/app/config.go

@@ -9,14 +9,19 @@ type Config struct {
 	CodexHome     string
 	HTTPAddr      string
 	WorkspaceRoot string
+	StaticDir     string
 }
 
 func DefaultConfig() Config {
+	httpAddr := envOrDefault("HTTP_ADDR", "127.0.0.1:18083")
+	staticDir := os.Getenv("STATIC_DIR")
+	workspaceRoot := envOrDefault("WORKSPACE_ROOT", ".")
 	if codexHome := os.Getenv("CODEX_HOME"); codexHome != "" {
 		return Config{
 			CodexHome:     codexHome,
-			HTTPAddr:      "127.0.0.1:18083",
-			WorkspaceRoot: ".",
+			HTTPAddr:      httpAddr,
+			WorkspaceRoot: workspaceRoot,
+			StaticDir:     staticDir,
 		}
 	}
 	home, err := os.UserHomeDir()
@@ -25,7 +30,15 @@ func DefaultConfig() Config {
 	}
 	return Config{
 		CodexHome:     filepath.Join(home, ".codex"),
-		HTTPAddr:      "127.0.0.1:18083",
-		WorkspaceRoot: ".",
+		HTTPAddr:      httpAddr,
+		WorkspaceRoot: workspaceRoot,
+		StaticDir:     staticDir,
 	}
 }
+
+func envOrDefault(name string, fallback string) string {
+	if value := os.Getenv(name); value != "" {
+		return value
+	}
+	return fallback
+}

internal/app/config_test.go

@@ -17,6 +17,24 @@ func TestDefaultConfigUsesCODEXHomeOverride(t *testing.T) {
 	}
 }
 
+func TestDefaultConfigUsesDockerRuntimeOverrides(t *testing.T) {
+	t.Setenv("HTTP_ADDR", "0.0.0.0:18083")
+	t.Setenv("STATIC_DIR", "/app/web/dist")
+	t.Setenv("WORKSPACE_ROOT", "/app")
+
+	cfg := DefaultConfig()
+
+	if cfg.HTTPAddr != "0.0.0.0:18083" {
+		t.Fatalf("HTTPAddr = %q, want %q", cfg.HTTPAddr, "0.0.0.0:18083")
+	}
+	if cfg.StaticDir != "/app/web/dist" {
+		t.Fatalf("StaticDir = %q, want %q", cfg.StaticDir, "/app/web/dist")
+	}
+	if cfg.WorkspaceRoot != "/app" {
+		t.Fatalf("WorkspaceRoot = %q, want %q", cfg.WorkspaceRoot, "/app")
+	}
+}
+
 func TestDefaultConfigFallsBackToUserCodexHome(t *testing.T) {
 	t.Setenv("CODEX_HOME", "")
 	home, err := os.UserHomeDir()