uhttpd: use procd to reload on acme renew

Calling /etc/init.d/uhttpd reload directly in the acme hotplug script
can inadvertently start a stopped instance.

Signed-off-by: Glen Huang <i@glenhuang.com>

package/network/services/uhttpd/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=uhttpd
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/uhttpd.git
@@ -113,8 +113,6 @@ define Package/uhttpd/install
 	$(VERSION_SED_SCRIPT) $(1)/etc/config/uhttpd
 	$(INSTALL_DIR) $(1)/usr/sbin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/uhttpd $(1)/usr/sbin/uhttpd
-	$(INSTALL_DIR) $(1)/etc/hotplug.d/acme
-	$(INSTALL_DATA) ./files/acme.hotplug $(1)/etc/hotplug.d/acme/00-uhttpd
 endef
 
 define Package/uhttpd-mod-lua/install

package/network/services/uhttpd/files/acme.hotplug

@@ -1,3 +0,0 @@
-if [ "$ACTION" = renewed ]; then
-	/etc/init.d/uhttpd reload
-fi

package/network/services/uhttpd/files/uhttpd.init

@@ -222,6 +222,7 @@ start_instance()
 service_triggers()
 {
 	procd_add_reload_trigger "uhttpd"
+	procd_add_raw_trigger acme.renew 5000 /etc/init.d/uhttpd reload
 }
 
 start_service() {