fluent-bit: make functional

* make the fluent-bit functional on target with iowrt
* resolve crash with file output plugin
* setup init file
* setup default conf file - no logging

fluent-bit/Makefile

@@ -1,18 +1,19 @@
 #
-# Copright (C) 2018 The Internet Foundation In Sweden
+# Copyright (C) 2023 IOPSYS
 #
 
 include $(TOPDIR)/rules.mk
 
-PKG_NAME:=fluentbit
-PKG_VERSION:=1.0.0
+PKG_NAME:=fluent-bit
+PKG_VERSION:=3.1.0
 PKG_RELEASE:=1
 
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/fluent/fluent-bit.git
-PKG_SOURCE_VERSION:=v3.0.5
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
-PKG_MIRROR_HASH:=skip
+LOCAL_DEV:=0
+ifneq ($(LOCAL_DEV),1)
+PKG_SOURCE=v$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://github.com/fluent/fluent-bit/archive/refs/tags/
+PKG_HASH:=7a49e110cf3050b6c29c911063494b8081f3c743274d1d95e52562d0476ba1eb
+endif
 
 PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE
@@ -20,25 +21,32 @@ PKG_LICENSE_FILES:=LICENSE
 include $(INCLUDE_DIR)/package.mk
 include $(INCLUDE_DIR)/cmake.mk
 
-define Package/fluentbit
+define Package/fluent-bit
 	CATEGORY:=Utilities
-	DEPENDS:= +libyaml +libopenssl +libcurl +libatomic +musl-fts
-	TITLE:=FluentBit
+	DEPENDS:= +libyaml +libopenssl +libcurl +libatomic +musl-fts +flex +bison
+	TITLE:=Fluent-Bit
+	URL:=https://fluentbit.io/
 endef
 
-define Package/fluentbit/description
+define Package/fluent-bit/description
 	Fluent Bit is a super fast, lightweight, and highly scalable logging and metrics processor and forwarder.
 endef
 
+ifeq ($(LOCAL_DEV),1)
+define Build/Prepare
+        $(CP) -rf ./fluent-bit/* $(PKG_BUILD_DIR)/
+endef
+endif
+
 # General options
 TARGET_LDFLAGS +=-lfts -latomic
 
 CMAKE_OPTIONS+= \
 	-DFLB_RELEASE=Yes \
-	-DFLB_SMALL=Yes \
+	-DFLB_SMALL=No \
 	-DEXCLUDE_FROM_ALL=true \
-	-DBUILD_SHAREDD_LIBS=Yes \
-	-DFLB_DEBUG=No \
+	-DFLB_SHARED_LIBS=Yes \
+	-DFLB_DEBUG=Yes \
 	-DFLB_ALL=No \
 	-DFLB_JEMALLOC=No \
 	-DFLB_EXAMPLES=No \
@@ -156,10 +164,14 @@ CMAKE_OPTIONS += \
 	-DFLB_OUT_CHRONICLE=No \
 	-DFLB_OUT_PGSQL=No
 
-define Package/fluentbit/install
+define Package/fluent-bit/install
 	$(INSTALL_DIR) $(1)/etc/init.d
 	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_DIR) $(1)/etc/fluent-bit
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/bin/fluent-bit $(1)/usr/sbin/
+	$(INSTALL_BIN) ./files/fluent-bit.init $(1)/etc/init.d/fluent-bit
+	$(INSTALL_DATA) ./files/fluent-bit.conf $(1)/etc/fluent-bit/fluent-bit.conf
+	$(INSTALL_DATA) $(PKG_BUILD_DIR)/conf/parsers.conf $(1)/etc/fluent-bit/parsers.conf
 endef
 
-$(eval $(call BuildPackage,fluentbit))
+$(eval $(call BuildPackage,fluent-bit))

fluent-bit/files/fluent-bit.conf

@@ -0,0 +1,15 @@
+[SERVICE]
+    flush           3
+    daemon          Off
+    log_level       info
+    parsers_file    /etc/fluent-bit/parsers.conf
+
+[INPUT]
+    name            syslog
+    tag             syslog
+    path            /dev/log
+
+[OUTPUT]
+    name            null
+    match           *
+

fluent-bit/files/fluent-bit.init

@@ -0,0 +1,21 @@
+#!/bin/sh /etc/rc.common
+
+START=12
+STOP=89
+USE_PROCD=1
+
+PROG=/usr/sbin/fluent-bit
+CONF=/etc/fluent-bit/fluent-bit.conf
+
+. /lib/functions.sh
+
+start_service() {
+	procd_open_instance
+	procd_set_param command $PROG -c $CONF
+	procd_set_param respawn
+	procd_close_instance
+}
+
+service_triggers() {
+	procd_add_reload_trigger fluent-bit
+}

fluent-bit/patches/0001-fix_out_file_plugin.patch

@@ -0,0 +1,14 @@
+diff --git a/plugins/out_file/file.c b/plugins/out_file/file.c
+index 2e47c9666..42ace24c6 100644
+--- a/plugins/out_file/file.c
++++ b/plugins/out_file/file.c
+@@ -45,6 +45,9 @@
+ #define NEWLINE "\n"
+ #endif
+ 
++#undef PATH_MAX
++#define PATH_MAX 256
++
+ struct flb_file_conf {
+     const char *out_path;
+     const char *out_file;