OVN
- underlay：容器运行在虚拟机中，而ovs则运行在虚拟机所在的物理机上，OVN将容器网络和虚拟机网络连接在一起
- overlay：OVN通过logical overlay network连接所有节点的容器，此时ovs可以直接运行在物理机或虚拟机上
# start ovn
/usr/share/openvswitch/scripts/ovn-ctl start_northd
/usr/share/openvswitch/scripts/ovn-ctl start_controller
# start ovnkube
nohup sudo ovnkube -k8s-kubeconfig kubeconfig.yaml -net-controller \
-loglevel=4 \
-k8s-apiserver="http://$CENTRAL_IP:8080" \
-logfile="/var/log/openvswitch/ovnkube.log" \
-init-master=$NODE_NAME -cluster-subnet="$CLUSTER_IP_SUBNET" \
-service-cluster-ip-range=$SERVICE_IP_SUBNET \
-nodeport \
-nb-address="tcp://$CENTRAL_IP:6631" \
-sb-address="tcp://$CENTRAL_IP:6632" 2>&1 &
nohup sudo ovnkube -k8s-kubeconfig kubeconfig.yaml -loglevel=4 \
-logfile="/var/log/openvswitch/ovnkube.log" \
-k8s-apiserver="http://$CENTRAL_IP:8080" \
-init-node="$NODE_NAME" \
-nodeport \
-nb-address="tcp://$CENTRAL_IP:6631" \
-sb-address="tcp://$CENTRAL_IP:6632" -k8s-token="$TOKEN" \
-init-gateways \
-service-cluster-ip-range=$SERVICE_IP_SUBNET \
-cluster-subnet=$CLUSTER_IP_SUBNET 2>&1 &
- 从
ovnannotation获取ip/mac/gateway - 在容器netns中配置接口和路由
- 添加ovs端口
ovs-vsctl add-port br-int veth_outside \
--set interface veth_outside \
external_ids:attached_mac=mac_address \
external_ids:iface-id=namespace_pod \
external_ids:ip_address=ip_address
ovs-vsctl del-port br-int port
暂未实现。
所有节点配置安装源并安装公共依赖
sudo apt-get install apt-transport-https
echo "deb https://packages.wand.net.nz $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/wand.list
sudo curl https://packages.wand.net.nz/keyring.gpg -o /etc/apt/trusted.gpg.d/wand.gpg
sudo apt-get update
sudo apt-get build-dep dkms
sudo apt-get install python-six openssl python-pip -y
sudo -H pip install --upgrade pip
sudo apt-get install openvswitch-datapath-dkms -y
sudo apt-get install openvswitch-switch openvswitch-common -y
sudo -H pip install ovs
Master 节点安装 ovn-central
sudo apt-get install ovn-central ovn-common ovn-host -y
Node 节点安装 ovn-host
sudo apt-get install ovn-host ovn-common -y