updated app data storage and AIO docker setup

internal/webui/webui.go

@@ -31,6 +31,13 @@ type App struct {
 	Relay      *relay.Relay // used by the webmail client's compose/send (see webmail_compose.go)
 	Cfg        *ini.File
 	ConfigPath string
+	// Root is the app's working directory at startup (os.Getwd() in main.go) — every
+	// relative path this package resolves on its own (uploaded cert/key files, the
+	// ACME data dir, the attachments-path tester) is joined against this, not against
+	// ConfigPath's own directory, so it always matches how main.go resolves the same
+	// kind of path (mailstore, attachments, TLS certs) regardless of where -config
+	// happens to point.
+	Root       string
 	Logger     *toolbox.Logger
 	SMTPUp     func() bool // reports whether the SMTP listeners are currently running
 
@@ -58,12 +65,11 @@ type App struct {
 // filesystem (embed.go), not disk, so no directory paths are needed for them.
 // appSecret is loaded by the caller via LoadOrCreateAppSecret, mirroring how
 // mailstore's master key is loaded in main.go and threaded in rather than resolved
-// internally (both are file paths relative to the app's root working directory,
-// which this package doesn't otherwise know).
-func New(database *db.DB, dkimMgr *dkim.Manager, mstore *mailstore.Store, acmeMgr, acmeHTTPMgr *acmecert.Manager, relayer *relay.Relay, cfg *ini.File, configPath string, logger *toolbox.Logger, smtpUp func() bool, appSecret []byte) (*App, error) {
+// internally (both are file paths relative to root — see the App.Root doc comment).
+func New(database *db.DB, dkimMgr *dkim.Manager, mstore *mailstore.Store, acmeMgr, acmeHTTPMgr *acmecert.Manager, relayer *relay.Relay, cfg *ini.File, configPath, root string, logger *toolbox.Logger, smtpUp func() bool, appSecret []byte) (*App, error) {
 	trustedProxies := parseTrustedProxies(cfg.Section("Server").Key("trusted_proxies").MustString(""), logger)
 	a := &App{
-		DB: database, DKIM: dkimMgr, Mailstore: mstore, ACME: acmeMgr, ACMEHTTP: acmeHTTPMgr, Relay: relayer, Cfg: cfg, ConfigPath: configPath, Logger: logger, SMTPUp: smtpUp,
+		DB: database, DKIM: dkimMgr, Mailstore: mstore, ACME: acmeMgr, ACMEHTTP: acmeHTTPMgr, Relay: relayer, Cfg: cfg, ConfigPath: configPath, Root: root, Logger: logger, SMTPUp: smtpUp,
 		pgpKeys: newPGPKeyCache(), trustedProxies: trustedProxies, loginLimiter: newIPRateLimiter(20, time.Minute), appSecret: appSecret,
 	}
 	if err := a.loadTemplates(); err != nil {