CentOS7安裝ovs2.9.2

由於因爲ovs和floodlight的版本匹配問題，走了不少冤枉路。在此記一次centos下安裝ovs2.9.2的過程，以備不時之需（Ubuntu下用命令apt安裝是最省事的，編譯安裝對於新手容易踩雷）。

#從官網下載對應版本的ovs（直接改後邊的版本號即可）
wget https://www.openvswitch.org/releases/openvswitch-2.9.2.tar.gz

#安裝依賴包
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

#創建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

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

#啓動服務
systemctl enable openvswitch.service
systemctl start openvswitch.service
systemctl status openvswitch.service