resolver-debug: redirect resolver logs to /var/log/resolver

All resolvers logs (unbound/kresd) will end in /var/log/resolver file
until package resolver-debug is  uninstalled

net/resolver-debug/Makefile

 #
-# Copyright (C) 2017-2020 CZ.NIC, z. s. p. o. (https://www.nic.cz/)
+# Copyright (C) 2017-2021 CZ.NIC, z. s. p. o. (https://www.nic.cz/)
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -8,8 +8,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=resolver-debug
-PKG_VERSION:=0.0.1
-PKG_RELEASE:=10
+PKG_VERSION:=0.0.2
+PKG_RELEASE:=1
 
 PKG_MAINTAINER:=CZ.NIC <packaging@turris.cz>
 PKG_LICENSE:=GPL-3.0
@@ -21,12 +21,14 @@ define Package/resolver-debug
   CATEGORY:=Network
   SUBMENU:=IP Addresses and Names
   TITLE:=Resolver debug utils
-  DEPENDS:=+luci-app-commands
+  DEPENDS:=+luci-app-commands +logrotate +syslog-ng
 endef
 
 define Package/resolver-debug/description
   Debug utils for knot-resolver and unbound.
-  It adds custom commands for debugging to LuCI.
+  It adds custom commands for debugging to LuCI
+  and redirects resolver log from /var/log/messages
+  to /var/log/resolver
 endef
 
 Build/Compile:=:
@@ -35,6 +37,12 @@ Build/Install:=:
 define Package/resolver-debug/install
 	$(INSTALL_DIR) $(1)/etc/resolver
 	$(INSTALL_BIN) ./files/resolver-debug.sh $(1)/etc/resolver/resolver-debug.sh
+
+	$(INSTALL_DIR) $(1)/usr/share/syslog-ng/include/scl/resolver
+	$(CP) ./files/syslog/resolver.conf $(1)/usr/share/syslog-ng/include/scl/resolver/
+
+	$(INSTALL_DIR) $(1)/etc/logrotate.d
+	$(CP) ./files/logrotate/resolver.conf $(1)/etc/logrotate.d/
 endef
 
 define Package/resolver-debug/postinst
@@ -42,6 +50,7 @@ define Package/resolver-debug/postinst
 if [ -z "$$IPKG_INSTROOT" ]; then
 	/etc/resolver/resolver-debug.sh remove-btn
 	/etc/resolver/resolver-debug.sh add-btn
+	/etc/init.d/syslog-ng reload
 fi
 endef
 
@@ -52,4 +61,11 @@ if [ -z "$$IPKG_INSTROOT" ]; then
 fi
 endef
 
+define Package/resolver-debug/postrm
+#!/bin/sh
+if [ -z "$$IPKG_INSTROOT" ]; then
+	/etc/init.d/syslog-ng reload
+fi
+endef
+
 $(eval $(call BuildPackage,resolver-debug))

net/resolver-debug/files/logrotate/resolver.conf

+/var/log/resolver {
+	size 10M
+	rotate 1
+	postrotate
+		/etc/init.d/syslog-ng reload
+	endscript
+}

net/resolver-debug/files/resolver-debug.sh

@@ -164,7 +164,7 @@ print_log() {
 	echo "====Log===="
 	date
 	echo "==========="
-	cat /var/log/messages
+	cat /var/log/resolver
 }
 
 

net/resolver-debug/files/syslog/resolver.conf

+destination resolver{
+    file("/var/log/resolver");
+};
+
+filter f_resolver{
+    program("unbound") or program("kresd") or program("resolver-debug");
+};
+
+log {
+    source(src);
+    filter(f_resolver);
+    destination(resolver);
+    flags(final);
+};