CentOS7安装ovs2.9.2

由于因为ovs和floodlight的版本匹配问题，走了不少冤枉路。在此记一次centos下安装ovs2.9.2的过程，以备不时之需（Ubuntu下用命令apt安装是最省事的，编译安装对于新手容易踩雷）。

#从官网下载对应版本的ovs（直接改后边的版本号即可）
wget https://www.openvswitch.org/releases/openvswitch-2.9.2.tar.gz

#安装依赖包
yum install -y python-six selinux-policy-devel gcc make python-devel openssl-devel kernel-devel graphviz kernel-debug-devel autoconf automake rpm-build redhat-rpm-config libtool python-sphinx

#创建ovs rpm包
mkdir -p ~/rpmbuild/SOURCES
cp openvswitch-2.9.2.tar.gz ~/rpmbuild/SOURCES/
cd ~/rpmbuild/SOURCES/
tar -zxvf openvswitch-2.9.2.tar.gz 
sed 's/openvswitch-kmod, //g' openvswitch-2.9.2/rhel/openvswitch.spec > openvswitch-2.9.2/rhel/openvswitch_no_kmod.spec
rpmbuild -bb --nocheck ~/rpmbuild/SOURCES/openvswitch-2.9.2/rhel/openvswitch_no_kmod.spec

#安装
yum localinstall ~/rpmbuild/RPMS/x86_64/openvswitch-2.9.2-1.x86_64.rpm

#启动服务
systemctl enable openvswitch.service
systemctl start openvswitch.service
systemctl status openvswitch.service