[sflow]: Build infrastructure changes to support sflow docker and utilities (#3251)

Introduce a new "sflow" container (if ENABLE_SFLOW is set). The new docker will include: hsflowd : host-sflow based daemon is the sFlow agent psample : Built from libpsample repository. Useful in debugging sampled packets/groups. sflowtool : Locally dump sflow samples (e.g. with a in-unit collector) In case of SONiC-VS, enable psample & act_sample kernel modules. VS' syncd needs iproute2=4.20.0-2~bpo9+1 & libcap2-bin=1:2.25-1 to support tc-sample tc-syncd is provided as a convenience tool for debugging (e.g. tc-syncd filter show ...)
2019-09-14 20:27:09 -07:00 · 2019-09-14 20:27:09 -07:00 · 75104bb35d
commit 75104bb35d
parent ac1d2c1023
28 changed files with 500 additions and 0 deletions
--- a/dockers/docker-sflow/Dockerfile.j2
+++ b/dockers/docker-sflow/Dockerfile.j2
@ -0,0 +1,33 @@
+{% from "dockers/dockerfile-macros.j2" import install_debian_packages, install_python_wheels, copy_files %}
+FROM docker-config-engine-stretch
+
+ARG docker_container_name
+RUN [ -f /etc/rsyslog.conf ] && sed -ri "s/%syslogtag%/$docker_container_name#%syslogtag%/;" /etc/rsyslog.conf
+
+## Make apt-get non-interactive
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update      && \
+    apt-get install -f -y  \
+            dmidecode      \
+            libmnl0=1.0.4-2
+
+{% if docker_sflow_debs.strip() -%}
+# Copy locally-built Debian package dependencies
+{{ copy_files("debs/", docker_sflow_debs.split(' '), "/debs/") }}
+
+# Install locally-built Debian packages and implicitly install their dependencies
+{{ install_debian_packages(docker_sflow_debs.split(' ')) }}
+{%- endif %}
+
+RUN apt-get clean -y      && \
+    apt-get autoclean -y  && \
+    apt-get autoremove -y && \
+    rm -rf /debs
+
+RUN sed -ri '/^DAEMON_ARGS=""/c DAEMON_ARGS="-c /var/log/hsflowd.crash"' /etc/init.d/hsflowd
+
+COPY ["start.sh", "/usr/bin/"]
+COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
+
+ENTRYPOINT ["/usr/bin/supervisord"]
--- a/dockers/docker-sflow/base_image_files/psample
+++ b/dockers/docker-sflow/base_image_files/psample
@ -0,0 +1,10 @@
+#!/bin/bash
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS sflow psample "$@"
--- a/dockers/docker-sflow/base_image_files/sflowtool
+++ b/dockers/docker-sflow/base_image_files/sflowtool
@ -0,0 +1,10 @@
+#!/bin/bash
+
+DOCKER_EXEC_FLAGS="i"
+
+# Determine whether stdout is on a terminal
+if [ -t 1 ] ; then
+    DOCKER_EXEC_FLAGS+="t"
+fi
+
+docker exec -$DOCKER_EXEC_FLAGS sflow sflowtool "$@"
--- a/dockers/docker-sflow/start.sh
+++ b/dockers/docker-sflow/start.sh
@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+rm -f /var/run/rsyslogd.pid
+
+supervisorctl start rsyslogd
+
+supervisorctl start sflowmgrd
--- a/dockers/docker-sflow/supervisord.conf
+++ b/dockers/docker-sflow/supervisord.conf
@ -0,0 +1,28 @@
+[supervisord]
+logfile_maxbytes=1MB
+logfile_backups=2
+nodaemon=true
+
+[program:start.sh]
+command=/usr/bin/start.sh
+priority=1
+autostart=true
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:rsyslogd]
+command=/usr/sbin/rsyslogd -n
+priority=2
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
+
+[program:sflowmgrd]
+command=/usr/bin/sflowmgrd
+priority=3
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog
--- a/files/build_templates/sflow.service.j2
+++ b/files/build_templates/sflow.service.j2
@ -0,0 +1,14 @@
+[Unit]
+Description=sFlow container
+Requires=swss.service
+After=swss.service
+Before=ntp-config.service
+
+[Service]
+User={{ sonicadmin_user }}
+ExecStartPre=/usr/bin/{{docker_container_name}}.sh start
+ExecStart=/usr/bin/{{docker_container_name}}.sh wait
+ExecStop=/usr/bin/{{docker_container_name}}.sh stop
+
+[Install]
+WantedBy=multi-user.target
--- a/files/build_templates/sonic_debian_extension.j2
+++ b/files/build_templates/sonic_debian_extension.j2
@ -300,6 +300,14 @@ sudo cp $IMAGE_CONFIGS/platform/rc.local $FILESYSTEM_ROOT/etc/
 ## copy blacklist file
 sudo cp $IMAGE_CONFIGS/platform/linux_kernel_bde.conf $FILESYSTEM_ROOT/etc/modprobe.d/

+# Enable psample drivers to support sFlow on vs
+{% if sonic_asic_platform == "vs" %}
+sudo tee -a $FILESYSTEM_ROOT/etc/modules-load.d/modules.conf > /dev/null <<EOF
+psample
+act_sample
+EOF
+{% endif %}
+
 ## Bind docker path
 if [[ $CONFIGURED_ARCH == armhf || $CONFIGURED_ARCH == arm64 ]]; then
    sudo mkdir -p $FILESYSTEM_ROOT/dockerfs
--- a/platform/vs/docker-syncd-vs/Dockerfile.j2
+++ b/platform/vs/docker-syncd-vs/Dockerfile.j2
@ -8,6 +8,8 @@ ENV DEBIAN_FRONTEND=noninteractive

 RUN apt-get update

+RUN apt-get install -f -y iproute2=4.20.0-2~bpo9+1 libcap2-bin=1:2.25-1
+
 COPY \
 {% for deb in docker_syncd_vs_debs.split(' ') -%}
 debs/{{ deb }}{{' '}}
--- a/rules/config
+++ b/rules/config
@ -95,3 +95,6 @@ FRR_USER_GID = 300

 # Default VS build memory preparation
 DEFAULT_VS_PREPARE_MEM = yes
+
+# ENABLE_SYSTEM_SFLOW - build docker-sonic-sflow for sFlow support
+ENABLE_SFLOW = y
--- a/rules/docker-sflow.mk
+++ b/rules/docker-sflow.mk
@ -0,0 +1,35 @@
+# docker image for sFlow agent
+
+DOCKER_SFLOW_STEM = docker-sflow
+DOCKER_SFLOW = $(DOCKER_SFLOW_STEM).gz
+DOCKER_SFLOW_DBG = $(DOCKER_SFLOW_STEM)-$(DBG_IMAGE_MARK).gz
+
+$(DOCKER_SFLOW)_PATH = $(DOCKERS_PATH)/$(DOCKER_SFLOW_STEM)
+
+$(DOCKER_SFLOW)_DEPENDS += $(SWSS) $(REDIS_TOOLS) $(HSFLOWD) $(SFLOWTOOL) $(PSAMPLE)
+$(DOCKER_SFLOW)_DBG_DEPENDS = $($(DOCKER_CONFIG_ENGINE_STRETCH)_DBG_DEPENDS)
+$(DOCKER_TEAMD)_DBG_DEPENDS += $(SWSS_DBG) $(LIBSWSSCOMMON_DBG)
+$(DOCKER_SFLOW)_DBG_IMAGE_PACKAGES = $($(DOCKER_CONFIG_ENGINE_STRETCH)_DBG_IMAGE_PACKAGES)
+
+$(DOCKER_SFLOW)_LOAD_DOCKERS += $(DOCKER_CONFIG_ENGINE_STRETCH)
+
+SONIC_DOCKER_IMAGES += $(DOCKER_SFLOW)
+ifeq ($(ENABLE_SFLOW), y)
+SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_SFLOW)
+SONIC_STRETCH_DOCKERS += $(DOCKER_SFLOW)
+endif
+
+SONIC_DOCKER_DBG_IMAGES += $(DOCKER_SFLOW_DBG)
+ifeq ($(ENABLE_SFLOW), y)
+SONIC_INSTALL_DOCKER_DBG_IMAGES += $(DOCKER_SFLOW_DBG)
+SONIC_STRETCH_DBG_DOCKERS += $(DOCKER_SFLOW_DBG)
+endif
+
+$(DOCKER_SFLOW)_CONTAINER_NAME = sflow
+$(DOCKER_SFLOW)_RUN_OPT += --net=host --privileged -t
+$(DOCKER_SFLOW)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
+$(DOCKER_SFLOW)_RUN_OPT += -v /host/warmboot:/var/warmboot
+
+$(DOCKER_SFLOW)_BASE_IMAGE_FILES += psample:/usr/bin/psample
+$(DOCKER_SFLOW)_BASE_IMAGE_FILES += sflowtool:/usr/bin/sflowtool
+
--- a/rules/sflow.mk
+++ b/rules/sflow.mk
@ -0,0 +1,49 @@
+# host-sflow package
+
+HSFLOWD_VERSION = 2.0.21
+HSFLOWD_SUBVERSION = 8
+export HSFLOWD_VERSION HSFLOWD_SUBVERSION
+
+HSFLOWD = hsflowd_$(HSFLOWD_VERSION)-$(HSFLOWD_SUBVERSION)_$(CONFIGURED_ARCH).deb
+$(HSFLOWD)_DEPENDS += $(LIBHIREDIS_DEV) $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
+$(HSFLOWD)_SRC_PATH = $(SRC_PATH)/sflow/hsflowd
+
+SONIC_MAKE_DEBS += $(HSFLOWD)
+SONIC_STRETCH_DEBS += $(HSFLOWD)
+
+HSFLOWD_DBG = hsflowd-dbg_$(HSFLOWD_VERSION)-$(HSFLOWD_SUBVERSION)_$(CONFIGURED_ARCH).deb
+$(HSFLOWD_DBG)_DEPENDS += $(HSFLOWD)
+$(HSFLOWD_DBG)_RDEPENDS += $(HSFLOWD)
+$(eval $(call add_derived_package,$(HSFLOWD),$(HSFLOWD_DBG)))
+
+export HSFLOWD HSFLOWD_DBG
+
+# sflowtool package
+
+SFLOWTOOL_VERSION = 5.04
+export SFLOWTOOL_VERSION
+
+SFLOWTOOL = sflowtool_$(SFLOWTOOL_VERSION)_$(CONFIGURED_ARCH).deb
+$(SFLOWTOOL)_SRC_PATH = $(SRC_PATH)/sflow/sflowtool
+
+SONIC_MAKE_DEBS += $(SFLOWTOOL)
+SONIC_STRETCH_DEBS += $(SFLOWTOOL)
+export SFLOWTOOL
+
+# psample package
+
+PSAMPLE_VERSION = 1.1
+PSAMPLE_SUBVERSION = 1
+export PSAMPLE_VERSION PSAMPLE_SUBVERSION
+
+PSAMPLE = psample_$(PSAMPLE_VERSION)-$(PSAMPLE_SUBVERSION)_$(CONFIGURED_ARCH).deb
+$(PSAMPLE)_SRC_PATH = $(SRC_PATH)/sflow/psample
+
+SONIC_MAKE_DEBS += $(PSAMPLE)
+SONIC_STRETCH_DEBS += $(PSAMPLE)
+export PSAMPLE
+
+# The .c, .cpp, .h & .hpp files under src/{$DBG_SRC_ARCHIVE list}
+# are archived into debug one image to facilitate debugging.
+#
+DBG_SRC_ARCHIVE += sflow
--- a/slave.mk
+++ b/slave.mk
@ -108,6 +108,10 @@ ifeq ($(SONIC_INSTALL_DEBUG_TOOLS),y)
 INSTALL_DEBUG_TOOLS = y
 endif

+ifeq ($(SONIC_ENABLE_SFLOW),y)
+ENABLE_SFLOW = y
+endif
+
 include $(RULES_PATH)/functions
 include $(RULES_PATH)/*.mk
 ifneq ($(CONFIGURED_PLATFORM), undefined)
@ -192,6 +196,7 @@ $(info "KERNEL_PROCURE_METHOD"           : "$(KERNEL_PROCURE_METHOD)")
 $(info "BUILD_TIMESTAMP"                 : "$(BUILD_TIMESTAMP)")
 $(info "BLDENV"                          : "$(BLDENV)")
 $(info "VS_PREPARE_MEM"                  : "$(VS_PREPARE_MEM)")
+$(info "ENABLE_SFLOW"                    : "$(ENABLE_SFLOW)")
 $(info )

 ifeq ($(SONIC_USE_DOCKER_BUILDKIT),y)
--- a/src/sflow/hsflowd/Makefile
+++ b/src/sflow/hsflowd/Makefile
@ -0,0 +1,29 @@
+.ONESHELL:
+SHELL = /bin/bash
+.SHELLFLAGS += -e
+
+MAIN_TARGET = $(HSFLOWD)
+DERIVED_TARGET = $(HSFLOWD_DBG)
+
+$(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
+	rm -fr ./host-sflow
+	git clone https://github.com/sflow/host-sflow
+
+	pushd ./host-sflow
+	git checkout -b sflow -f 996f5ec
+
+        # Apply patch series
+	stg init
+	stg import -s ../patch/series
+
+	mkdir -p debian
+	cp -r DEBIAN_build/* debian
+	chmod u+x debian/rules
+	sed -i -e s/_VERSION_/$(HSFLOWD_VERSION)-$(HSFLOWD_SUBVERSION)/g debian/changelog
+
+	dpkg-buildpackage -rfakeroot -b -us -uc -j$(SONIC_CONFIG_MAKE_JOBS) --buildinfo-option=-u. --changes-option=-u.
+
+	mv $(DERIVED_TARGET) $* $(DEST)/
+	popd
+
+$(addprefix $(DEST)/, $(DERIVED_TARGET)): $(DEST)/% : $(DEST)/$(MAIN_TARGET)
--- a/src/sflow/hsflowd/patch/0001-host_sflow_psample.patch
+++ b/src/sflow/hsflowd/patch/0001-host_sflow_psample.patch
@ -0,0 +1,39 @@
+diff -ruN a/src/Linux/linux/psample.h b/src/Linux/linux/psample.h
+--- a/src/Linux/linux/psample.h	1969-12-31 16:00:00.000000000 -0800
+++ b/src/Linux/linux/psample.h	2019-07-20 08:45:58.715748881 -0700
+@@ -0,0 +1,35 @@
+#ifndef __UAPI_PSAMPLE_H
+#define __UAPI_PSAMPLE_H
+
+enum {
+	/* sampled packet metadata */
+	PSAMPLE_ATTR_IIFINDEX,
+	PSAMPLE_ATTR_OIFINDEX,
+	PSAMPLE_ATTR_ORIGSIZE,
+	PSAMPLE_ATTR_SAMPLE_GROUP,
+	PSAMPLE_ATTR_GROUP_SEQ,
+	PSAMPLE_ATTR_SAMPLE_RATE,
+	PSAMPLE_ATTR_DATA,
+
+	/* commands attributes */
+	PSAMPLE_ATTR_GROUP_REFCOUNT,
+
+	__PSAMPLE_ATTR_MAX
+};
+
+enum psample_command {
+	PSAMPLE_CMD_SAMPLE,
+	PSAMPLE_CMD_GET_GROUP,
+	PSAMPLE_CMD_NEW_GROUP,
+	PSAMPLE_CMD_DEL_GROUP,
+};
+
+/* Can be overridden at runtime by module option */
+#define PSAMPLE_ATTR_MAX (__PSAMPLE_ATTR_MAX - 1)
+
+#define PSAMPLE_NL_MCGRP_CONFIG_NAME "config"
+#define PSAMPLE_NL_MCGRP_SAMPLE_NAME "packets"
+#define PSAMPLE_GENL_NAME "psample"
+#define PSAMPLE_GENL_VERSION 1
+
+#endif
--- a/src/sflow/hsflowd/patch/0002-host_sflow_debian.patch
+++ b/src/sflow/hsflowd/patch/0002-host_sflow_debian.patch
@ -0,0 +1,108 @@
+diff -ruN a/DEBIAN_build/changelog b/DEBIAN_build/changelog
+--- a/DEBIAN_build/changelog	1969-12-31 19:00:00.000000000 -0500
+++ b/DEBIAN_build/changelog	2019-08-19 22:52:10.171736403 -0400
+@@ -0,0 +1,6 @@
+hsflowd (_VERSION_) stable; urgency=medium
+
+  [ DellEMC ]
+  * Initial release : hsflowd
+
+ -- DellEMC <support@dell.com>  Mon, 29 Jul 2019 07:08:02 -0400
+diff -ruN a/DEBIAN_build/compat b/DEBIAN_build/compat
+--- a/DEBIAN_build/compat	1969-12-31 19:00:00.000000000 -0500
+++ b/DEBIAN_build/compat	2019-08-16 23:28:58.020938096 -0400
+@@ -0,0 +1 @@
+9
+diff -ruN a/DEBIAN_build/control b/DEBIAN_build/control
+--- a/DEBIAN_build/control	2019-08-16 05:11:33.974949327 -0400
+++ b/DEBIAN_build/control	2019-08-19 21:28:07.155722725 -0400
+@@ -1,9 +1,22 @@
+-Package: _PACKAGE_
+-Version: _VERSION_
+-Section: admin 
+Source: hsflowd
+Maintainer: Neil McKee [neil.mckee@inmon.com]
+Uploaders: DellEMC <support@dell.com>
+Section: net
+Priority: optional
+Build-Depends: dh-exec (>=0.3), debhelper (>= 9), autotools-dev
+Standards-Version: 1.0.0
+
+Package: hsflowd
+Section: admin
+ Priority: optional
+-Architecture: all
+Architecture: any
+ Essential: no
+-Maintainer: Neil McKee [neil.mckee@inmon.com]
+ Description: sFlow(R) monitoring agent
+ Homepage: sflow.net
+
+Package: hsflowd-dbg
+Architecture: any
+Section: debug
+Priority: extra
+Depends: hsflowd
+Description: debugging symbols for hsflowd
+diff -ruN a/DEBIAN_build/rules b/DEBIAN_build/rules
+--- a/DEBIAN_build/rules	1969-12-31 19:00:00.000000000 -0500
+++ b/DEBIAN_build/rules	2019-08-19 22:20:42.998569601 -0400
+@@ -0,0 +1,31 @@
+#!/usr/bin/make -f
+
+# See debhelper(7) (uncomment to enable)
+# output every command that modifies files on the build system.
+export DH_VERBOSE = 1
+
+# see EXAMPLES in dpkg-buildflags(1) and read /usr/share/dpkg/*
+DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/default.mk
+
+%:
+	dh $@
+
+binary:
+	dh_gencontrol
+	dh_strip -phsflowd --dbg-package=hsflowd-dbg
+	dpkg-deb --build debian/hsflowd-dbg hsflowd-dbg_$(HSFLOWD_VERSION)-$(HSFLOWD_SUBVERSION)_$(CONFIGURED_ARCH).deb
+	dpkg-deb --build debian/hsflowd hsflowd_$(HSFLOWD_VERSION)-$(HSFLOWD_SUBVERSION)_$(CONFIGURED_ARCH).deb
+
+override_dh_auto_build:
+	make sonic-deb FEATURES="SONIC"
+
+override_dh_auto_configure:
+
+override_dh_auto_install:
+
+override_dh_auto_test:
+
+override_dh_auto_clean:
+
+override_dh_clean:
+diff -ruN a/Makefile b/Makefile
+--- a/Makefile	2019-08-16 21:34:25.167679297 -0400
+++ b/Makefile	2019-08-19 22:20:23.758479002 -0400
+@@ -146,6 +146,23 @@
+ 	cd ..; \
+ 	dpkg-deb --build debian hsflowd_$${MYVER}-$${MYREL}_$$MYARCH.deb
+ 
+sonic-deb: $(PROG)
+	MYARCH=`uname -m|sed 's/x86_64/amd64/'`; \
+	MYVER=`./getVersion`; \
+	MYREL=`./getRelease`; \
+	PLATFORM=`uname`; \
+	mkdir -p debian/usr/sbin; \
+	mkdir -p debian/etc/init.d; \
+	mkdir -p debian/etc/hsflowd/modules; \
+	mkdir -p debian/lib/systemd/system; \
+	mkdir -p debian/etc/dbus-1/system.d; \
+	cd src/$$PLATFORM; $(MAKE) VERSION=$$MYVER RELEASE=$$MYREL INSTROOT="../../debian/hsflowd" install; cd ../..; \
+	pwd; \
+	cd debian/hsflowd; \
+	find . -type d | xargs chmod 755; \
+	md5sum `find usr etc -type f` > md5sums; \
+	cd ../..;
+
+ xenserver: xenrpm
+ 	cd xenserver-ddk; $(MAKE) clean; $(MAKE)
+ 
--- a/src/sflow/hsflowd/patch/series
+++ b/src/sflow/hsflowd/patch/series
@ -0,0 +1,2 @@
+0001-host_sflow_psample.patch
+0002-host_sflow_debian.patch
--- a/src/sflow/psample/Makefile
+++ b/src/sflow/psample/Makefile
@ -0,0 +1,20 @@
+.ONESHELL:
+SHELL = /bin/bash
+.SHELLFLAGS += -e
+
+MAIN_TARGET = $(PSAMPLE)
+
+$(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
+
+	rm -fr ./libpsample
+	git clone https://github.com/Mellanox/libpsample.git
+	cp -r debian libpsample
+
+	pushd ./libpsample
+	git checkout -b libpsample -f e48fad2
+
+	dpkg-buildpackage -rfakeroot -b -us -uc -j$(SONIC_CONFIG_MAKE_JOBS)
+	popd
+
+	mv $* $(DEST)/
+
--- a/src/sflow/psample/debian/changelog
+++ b/src/sflow/psample/debian/changelog
@ -0,0 +1,6 @@
+psample (1.1-1) UNRELEASED; urgency=medium
+
+  [ DellEMC ]
+  * Initial release : based on https://github.com/Mellanox/libpsample
+
+ -- DellEMC <support@dell.com>  Mon, 29 Jul 2019 07:08:02 -0400
--- a/src/sflow/psample/debian/compat
+++ b/src/sflow/psample/debian/compat
@ -0,0 +1 @@
+9
--- a/src/sflow/psample/debian/control
+++ b/src/sflow/psample/debian/control
@ -0,0 +1,11 @@
+Source: psample
+Maintainer: DellEMC <support@dell.com>
+Section: devel
+Priority: optional
+Build-Depends: dh-exec (>=0.3), debhelper (>= 9), autotools-dev
+Standards-Version: 1.0.0
+
+Package: psample
+Architecture: any
+Depends: ${shlibs:Depends}
+Description: This package contains psample from https://github.com/Mellanox/libpsample
--- a/src/sflow/psample/debian/psample.install
+++ b/src/sflow/psample/debian/psample.install
@ -0,0 +1,4 @@
+bin/psample usr/bin
+lib/libpsample.so.1.0 lib/x86_64-linux-gnu
+lib/libpsample.so.1 lib/x86_64-linux-gnu
+lib/libpsample.so lib/x86_64-linux-gnu
--- a/src/sflow/psample/debian/rules
+++ b/src/sflow/psample/debian/rules
@ -0,0 +1,19 @@
+#!/usr/bin/make -f
+
+# main packaging script based on dh7 syntax
+%:
+	dh $@
+
+override_dh_auto_build:
+	cmake . && make
+
+override_dh_auto_install:
+
+override_dh_auto_test:
+
+override_dh_auto_clean:
+
+override_dh_strip:
+
+override_dh_clean:
+
--- a/src/sflow/sflowtool/Makefile
+++ b/src/sflow/sflowtool/Makefile
@ -0,0 +1,19 @@
+.ONESHELL:
+SHELL = /bin/bash
+.SHELLFLAGS += -e
+
+MAIN_TARGET = $(SFLOWTOOL)
+
+$(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
+
+	rm -fr ./sflowtool
+	git clone https://github.com/sflow/sflowtool
+	cp -r debian sflowtool
+
+	pushd ./sflowtool
+	git checkout -b sflowtool -f 6c2963b
+	dpkg-buildpackage -rfakeroot -b -us -uc -j$(SONIC_CONFIG_MAKE_JOBS)
+	popd
+
+	mv $* $(DEST)/
+
--- a/src/sflow/sflowtool/debian/changelog
+++ b/src/sflow/sflowtool/debian/changelog
@ -0,0 +1,6 @@
+sflowtool (5.04) UNRELEASED; urgency=medium
+
+  [ DellEMC ]
+  * Initial release : based on https://github.com/sflow/sflowtool
+
+ -- DellEMC <support@dell.com>  Mon, 29 Jul 2019 07:08:02 -0400
--- a/src/sflow/sflowtool/debian/compat
+++ b/src/sflow/sflowtool/debian/compat
@ -0,0 +1 @@
+9
--- a/src/sflow/sflowtool/debian/control
+++ b/src/sflow/sflowtool/debian/control
@ -0,0 +1,11 @@
+Source: sflowtool
+Maintainer: DellEMC <support@dell.com>
+Section: devel
+Priority: optional
+Build-Depends: dh-exec (>=0.3), debhelper (>= 9), autotools-dev
+Standards-Version: 1.0.0
+
+Package: sflowtool
+Architecture: any
+Depends: ${shlibs:Depends}
+Description: This package contains sflowtool from https://github.com/sflow/sflowtool
--- a/src/sflow/sflowtool/debian/rules
+++ b/src/sflow/sflowtool/debian/rules
@ -0,0 +1,19 @@
+#!/usr/bin/make -f
+
+# main packaging script based on dh7 syntax
+%:
+	dh $@
+
+override_dh_auto_build:
+	./boot.sh && ./configure && make
+
+override_dh_auto_install:
+
+override_dh_auto_test:
+
+override_dh_auto_clean:
+
+override_dh_strip:
+
+override_dh_clean:
+
--- a/src/sflow/sflowtool/debian/sflowtool.install
+++ b/src/sflow/sflowtool/debian/sflowtool.install
@ -0,0 +1 @@
+src/sflowtool usr/bin