fix: mount notification email templates (#4755)

Author: jgoux

internal/start/start.go

@@ -470,12 +470,12 @@ vector --config /etc/vector/vector.yaml
 		}
 
 		binds := []string{}
-		for id, tmpl := range utils.Config.Auth.Email.Template {
-			if len(tmpl.ContentPath) == 0 {
-				continue
+		mountEmailTemplates := func(id, contentPath string) error {
+			if len(contentPath) == 0 {
+				return nil
 			}
-			hostPath := tmpl.ContentPath
-			if !filepath.IsAbs(tmpl.ContentPath) {
+			hostPath := contentPath
+			if !filepath.IsAbs(contentPath) {
 				var err error
 				hostPath, err = filepath.Abs(hostPath)
 				if err != nil {
@@ -484,6 +484,23 @@ vector --config /etc/vector/vector.yaml
 			}
 			dockerPath := path.Join(nginxEmailTemplateDir, id+filepath.Ext(hostPath))
 			binds = append(binds, fmt.Sprintf("%s:%s:rw", hostPath, dockerPath))
+			return nil
+		}
+
+		for id, tmpl := range utils.Config.Auth.Email.Template {
+			err := mountEmailTemplates(id, tmpl.ContentPath)
+			if err != nil {
+				return err
+			}
+		}
+
+		for id, tmpl := range utils.Config.Auth.Email.Notification {
+			if tmpl.Enabled {
+				err := mountEmailTemplates(id+"_notification", tmpl.ContentPath)
+				if err != nil {
+					return err
+				}
+			}
 		}
 
 		dockerPort := uint16(8000)
@@ -661,23 +678,34 @@ EOF
 			env = append(env, fmt.Sprintf("GOTRUE_SESSIONS_INACTIVITY_TIMEOUT=%v", utils.Config.Auth.Sessions.InactivityTimeout))
 		}
 
-		for id, tmpl := range utils.Config.Auth.Email.Template {
-			if len(tmpl.ContentPath) > 0 {
+		addMailerEnvVars := func(id, contentPath string, subject *string) {
+			if len(contentPath) > 0 {
 				env = append(env, fmt.Sprintf("GOTRUE_MAILER_TEMPLATES_%s=http://%s:%d/email/%s",
 					strings.ToUpper(id),
 					utils.KongId,
 					nginxTemplateServerPort,
-					id+filepath.Ext(tmpl.ContentPath),
+					id+filepath.Ext(contentPath),
 				))
 			}
-			if tmpl.Subject != nil {
+			if subject != nil {
 				env = append(env, fmt.Sprintf("GOTRUE_MAILER_SUBJECTS_%s=%s",
 					strings.ToUpper(id),
-					*tmpl.Subject,
+					*subject,
 				))
 			}
 		}
 
+		for id, tmpl := range utils.Config.Auth.Email.Template {
+			addMailerEnvVars(id, tmpl.ContentPath, tmpl.Subject)
+		}
+
+		for id, tmpl := range utils.Config.Auth.Email.Notification {
+			if tmpl.Enabled {
+				env = append(env, fmt.Sprintf("GOTRUE_MAILER_NOTIFICATIONS_%s_ENABLED=true", strings.ToUpper(id)))
+				addMailerEnvVars(id+"_notification", tmpl.ContentPath, tmpl.Subject)
+			}
+		}
+
 		switch {
 		case utils.Config.Auth.Sms.Twilio.Enabled:
 			env = append(