干货收藏！Calico的BGP RouteReflector策略实践

2024-05-29 14:27 由华为云开发者联盟发表于 #其他

本文分享自华为云社区《Calico BGP RouteReflector策略实践》，作者：可以交个朋友。

一背景

容器网络组件Calico支持多种后端模式，有Overlay的IPIP、Vxlan模式，也有Underlay纯路由的BGP模式。

相比于Overlay网络模型，Underlay网络具有更高的数据面转发性能。同时在纯路由模式下，也有两种方案：Calico BGP的fullmesh方案，该方案存在一些限制，适用于小规模kubernetes集群，集群节点越多，BGP连接就越多,需要建立大量连接来保证网络的互通性，每增加一个节点就要成倍的增加连接保证网络的互通性，这样的话就会使用大量的网络消耗。所以这时就可以使用Route Reflector模式，也称为RR模式。RR模式 中会指定一个或多个BGP Speaker为RouterReflecor，它与网络中其他Speaker建立连接，每个Speaker只要与Router Reflector建立BGP就可以获得全网的路由信息。

二 Calico BGP RouteReflector模式组网架构

在不改变IDC机房内部网络拓扑的情况下，接入层交换机和核心层交换机建立BGP连接，借助于机房内部已有的路由策略实现，针对Node所处的物理位置分配Pod CIDR，并在每个节点上将Pod CIDR通过BGP协议宣告给接入层交换机，实现全网通信的能力。下图基于Leaf-Spine架构做详细说明。

组网原则:

每个接入层交换机与其管理的Node二层联通，共同构成一个AS。每个节点上跑BGP服务，用于宣告本节点路由信息。
核心层交换机和接入层交换机之间的每个路由器单独占用一个AS，物理直连，跑BGP协议。核心层交换机可以感知到全网的路由信息，接入层交换机可以感知与自己直连的Node上的路由信息。
同一个主机上的pod互访通过宿主机路由器。(将linux主机当成一个路由器)
同一个机架上不同node上的pod通信通过TOR(leaf)交换机
不同机架上pod通信走核心交换机

三模拟生产场景组网搭建环境

提前准备一台Ubuntu2204操作系统的机器(规格8U16G即可)。需要在虚拟机上安装如下软件工具:

Docker
go开发环境
Kind(kubernetes兴趣小组开发的一款kuberntes in docker软件，可用来快速搭建k8s测试环境，kind安装需要主机上先安装go，kind安装版本可选v0.20.0版本)
ContainerLab(使用容器技术构建的虚拟网络平台，可以使用vyos镜像构建虚拟的交换机路由器。建议安装v0.42.0版本的containerlab)

3.1 kubernetes 环境搭建

kubernetes集群版本为: 1.27.3

集群规模为1 master，3 work node

集群构建脚本如下: 1-setup-env.sh

#!/bin/bash
date
set -v

# 1.prep noCNI env
cat <<EOF | kind create cluster --name=calico-bgp-rr --image=kindest/node:v1.27.3 --config=-
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
networking:
  disableDefaultCNI: true
  podSubnet: "10.244.0.0/16"
nodes:
- role: control-plane
  kubeadmConfigPatches:
  - |
    kind: InitConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-ip: 10.1.5.10
        node-labels: "rack=rack0"

- role: worker
  kubeadmConfigPatches:
  - |
    kind: JoinConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-ip: 10.1.5.11
        node-labels: "rack=rack0"

- role: worker
  kubeadmConfigPatches:
  - |
    kind: JoinConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-ip: 10.1.8.10
        node-labels: "rack=rack1"

- role: worker
  kubeadmConfigPatches:
  - |
    kind: JoinConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-ip: 10.1.8.11
        node-labels: "rack=rack1"

EOF
# 2.remove taints
kubectl taint nodes $(kubectl get nodes -o name | grep control-plane) node-role.kubernetes.io/control-plane:NoSchedule-
kubectl get nodes -o wide

# 3. install tools
for i in $(docker ps -a --format "table {{.Names}}" |grep calico-bgp-rr)
do
                echo $i
                docker cp /usr/bin/ping $i:/usr/bin/ping
                docker cp /usr/local/bin/calicoctl $i:/usr/local/bin/
               # docker exec -it $i bash -c "apt-get -y update > /dev/null && apt-get -y install net-tools tcpdump lrzsz > /dev/null 2>&1"
done

执行脚本创建集群，由于未安装cni组件，集群部分pod会出现pending等状态，集群node 也会处于NotReady状态，这是正常现象。后面安装calico cni组件后，就可以解决。

3.2 创建网桥

在主机上创建网桥，主要作用是为了连通kind创建的K8s node和containerlab构建的交换机之间的网络。

brctl addbr br-leaf0;ifconfig br-leaf0 up;brctl addbr br-leaf1;ifconfig br-leaf1 up

3.3 借助containerLab搭建三层交换机并配置BGP规则

containerlab构建交换机脚本如下:2-setup-clab.sh

#!/bin/bash
set -v

cat <<EOF>clab.yaml | clab deploy -t clab.yaml -
name: calico-bgp-rr
topology:
  nodes:
    spine0:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/vyos:1.4.9
      cmd: /sbin/init
      binds:
        - /lib/modules:/lib/modules
        - ./startup-conf/spine0-boot.cfg:/opt/vyatta/etc/config/config.boot

    spine1:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/vyos:1.4.9
      cmd: /sbin/init
      binds:
        - /lib/modules:/lib/modules
        - ./startup-conf/spine1-boot.cfg:/opt/vyatta/etc/config/config.boot

    leaf0:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/vyos:1.4.9
      cmd: /sbin/init
      binds:
        - /lib/modules:/lib/modules
        - ./startup-conf/leaf0-boot.cfg:/opt/vyatta/etc/config/config.boot

    leaf1:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/vyos:1.4.9
      cmd: /sbin/init
      binds:
        - /lib/modules:/lib/modules
        - ./startup-conf/leaf1-boot.cfg:/opt/vyatta/etc/config/config.boot

    br-leaf0:
      kind: bridge
  
    br-leaf1:
      kind: bridge

    server1:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/nettool
      network-mode: container:calico-bgp-rr-control-plane
      exec:
      - ip addr add 10.1.5.10/24 dev net0
      - ip route replace default via 10.1.5.1

    server2:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/nettool
      network-mode: container:calico-bgp-rr-worker
      exec:
      - ip addr add 10.1.5.11/24 dev net0
      - ip route replace default via 10.1.5.1

    server3:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/nettool
      network-mode: container:calico-bgp-rr-worker2
      exec:
      - ip addr add 10.1.8.10/24 dev net0
      - ip route replace default via 10.1.8.1

    server4:
      kind: linux
      image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/nettool
      network-mode: container:calico-bgp-rr-worker3
      exec:
      - ip addr add 10.1.8.11/24 dev net0
      - ip route replace default via 10.1.8.1
  links:
    - endpoints: ["br-leaf0:br-leaf0-net0", "server1:net0"]
    - endpoints: ["br-leaf0:br-leaf0-net1", "server2:net0"]

    - endpoints: ["br-leaf1:br-leaf1-net0", "server3:net0"]
    - endpoints: ["br-leaf1:br-leaf1-net1", "server4:net0"]

    - endpoints: ["leaf0:eth1", "spine0:eth1"]
    - endpoints: ["leaf0:eth2", "spine1:eth1"]
    - endpoints: ["leaf0:eth3", "br-leaf0:br-leaf0-net2"]

    - endpoints: ["leaf1:eth1", "spine0:eth2"]
    - endpoints: ["leaf1:eth2", "spine1:eth2"]
    - endpoints: ["leaf1:eth3", "br-leaf1:br-leaf1-net2"]

EOF

可以看到containerlab组网成功，vyos对应的交换机上的bgp路由协议配置参照文档末尾。

3.4 Calico cni插件部署安装

由于Calico默认安装的是ipip模式，需要手动进行关闭，不通过ipip/vxlan封装就会开启bgp模式。

kubectl apply -f calico.yaml

#kubectl apply -f https://projectcalico.docs.tigera.io/archive/v3.23/manifests/calico.yaml

Calico组件安装完成后，节点之间建立的BGP连接是fullmesh全连接的形式

3.5 Calico BGP RR模式开启

fullmesh全连接形式在大规模集群中并不适用，我们需要关闭bgp fullmesh的模式，采取bgp route reflector

方法如下: 3-disable-bgp-full-mesh.sh

#!/bin/bash
set -v
# 1. disable bgp fullmesh
cat <<EOF | calicoctl apply -f - 
apiVersion: projectcalico.org/v3
items:
- apiVersion: projectcalico.org/v3
  kind: BGPConfiguration
  metadata:
    name: default
  spec:
    logSeverityScreen: Info
    nodeToNodeMeshEnabled: false
kind: BGPConfigurationList
metadata:
EOF

3.6 Calico node 配置BGP RR规则

kubernetes 集群中的节点作为BGP 路由反射器的客户端，需要和BGP路由反射器配置peer信息以达到同步路由的功能。

#!/bin/bash
set -v
# 1.3. add() bgp configuration for the nodes
cat <<EOF | calicoctl apply -f - 
apiVersion: projectcalico.org/v3
kind: Node
metadata:
  annotations:
  labels:
    rack: rack0
  name: calico-bgp-rr-control-plane
spec:
  addresses:
  - address: 10.1.5.10
    type: InternalIP
  bgp:
    asNumber: 65005
    ipv4Address: 10.1.5.10/24
  orchRefs:
  - nodeName: calico-bgp-rr-control-plane
    orchestrator: k8s
EOF

cat <<EOF | calicoctl apply -f - 
apiVersion: projectcalico.org/v3
kind: Node
metadata:
  labels:
    rack: rack0
  name: calico-bgp-rr-worker
spec:
  addresses:
  - address: 10.1.5.11
    type: InternalIP
  bgp:
    asNumber: 65005
    ipv4Address: 10.1.5.11/24  
  orchRefs:
  - nodeName: calico-bgp-rr-worker
    orchestrator: k8s

EOF
cat <<EOF | calicoctl apply -f - 
apiVersion: projectcalico.org/v3
kind: Node
metadata:
  labels:
    rack: rack1
  name: calico-bgp-rr-worker2
spec:
  addresses:
  - address: 10.1.8.10
    type: InternalIP
  bgp:
    asNumber: 65008
    ipv4Address: 10.1.8.10/24
  orchRefs:
  - nodeName: calico-bgp-rr-worker2
    orchestrator: k8s

EOF
cat <<EOF | calicoctl apply -f - 
apiVersion: projectcalico.org/v3
kind: Node
metadata:
  labels:
    rack: rack1
  name: calico-bgp-rr-worker3
spec:
  addresses:
  - address: 10.1.8.11
    type: InternalIP
  bgp:
    asNumber: 65008
    ipv4Address: 10.1.8.11/24
  orchRefs:
  - nodeName: calico-bgp-rr-worker3
    orchestrator: k8s

EOF

# 1.4. peer to leaf0 switch
cat <<EOF | calicoctl apply -f -
apiVersion: projectcalico.org/v3
kind: BGPPeer
metadata:
  name: rack0-to-leaf0
spec:
  peerIP: 10.1.5.1
  asNumber: 65005
  nodeSelector: rack == 'rack0'
EOF

# 1.5. peer to leaf1 switch
cat <<EOF | calicoctl apply -f -
apiVersion: projectcalico.org/v3
kind: BGPPeer
metadata:
  name: rack1-to-leaf1
spec:
  peerIP: 10.1.8.1
  asNumber: 65008
  nodeSelector: rack == 'rack1'
EOF

登录到集群中任意节点，查看BGP信息: 发现已经不再是BGP full mesh的形式了。node specific 表示该节点是路由反射器的客户端，对端即路由反射器是10.1.5.1这个地址

四集群外访问Pod进行BGP验证测试

部署测试业务

apiVersion: apps/v1
kind: DaemonSet
#kind: Deployment
metadata:
  labels:
    app: app
  name: app
spec:
  #replicas: 2
  selector:
    matchLabels:
      app: app
  template:
    metadata:
      labels:
        app: app
    spec:
      containers:
      - image: swr.cn-north-4.myhuaweicloud.com/k8s-solution/nettool
        name: nettoolbox
---
apiVersion: v1
kind: Service
metadata:
  name: app
spec:
  type: NodePort
  selector:
    app: app
  ports:
  - name: app
    port: 8080
    targetPort: 80
    nodePort: 32000

登录集群任意节点查看路由规则

例如: 10.244.210.64/26 via 10.1.5.1 dev net0 proto bird, 就是表示通过BGP协议学习的路由，bird则是calico中的BGP客户端

登录leaf0交换机查看BGP信息和路由规则

查看路由表：

可以发现leaf0交换机上存在k8s集群中的pod路由信息，也就是说可以访问集群中的pod

查看BGP信息：show ip bgp

可以明显看到:

前往地址为: 10.1.8.0/24|| 10.244.192.0/26 || 10.244.210.64的设备下一跳有两个10.1.12.2和10.1.10.2 属于EBGP路由，包含ECMP策略

前往地址为: 10.244.81.64/26 || 10.244.205.64/26 下一跳分别为10.1.5.10||10.1.5.11 属于IBGP路由

访问测试

集群中pod互访

核心交换机访问集群pod

如果说核心交换机和公网配置ebgp规则同步路由后，公网流量也就能进入kubernetes集群中了。

五 Containerlab中的vyos容器镜像模拟交换机的配置文件

spine0-boot.cfg如下:

interfaces {
    ethernet eth1 {
        address 10.1.10.2/24
        duplex auto
        speed auto
    }
    ethernet eth2 {
        address 10.1.34.2/24
        duplex auto
        speed auto
    }
    loopback lo {
    }
}
protocols {
    bgp {
        address-family {
            ipv4-unicast {
                network 10.1.10.0/24 {
                }
                network 10.1.34.0/24 {
                }
            }
        }
        neighbor 10.1.10.1 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 65005
        }
        neighbor 10.1.34.1 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 65008
        }
        parameters {
            bestpath {
                as-path {
                    multipath-relax
                }
            }
        }
        system-as 500
    }
}
system {
    config-management {
        commit-revisions 100
    }
    console {
        device ttyS0 {
            speed 9600
        }
    }
    host-name spine0
    login {
        user vyos {
            authentication {
                encrypted-password $6$QxPS.uk6mfo$9QBSo8u1FkH16gMyAVhus6fU3LOzvLR9Z9.82m3tiHFAxTtIkhaZSWssSgzt4v4dGAL8rhVQxTg0oAG9/q11h/
                plaintext-password ""
            }
        }
    }
    time-zone UTC
}
// Warning: Do not remove the following line.
// vyos-config-version: "bgp@4:broadcast-relay@1:cluster@1:config-management@1:conntrack@3:conntrack-sync@2:container@1:dhcp-relay@2:dhcp-server@6:dhcpv6-server@1:dns-dynamic@1:dns-forwarding@4:firewall@10:flow-accounting@1:https@4:ids@1:interfaces@29:ipoe-server@1:ipsec@12:isis@3:l2tp@4:lldp@1:mdns@1:monitoring@1:nat@5:nat66@1:ntp@2:openconnect@2:ospf@2:policy@5:pppoe-server@6:pptp@2:qos@2:quagga@11:rip@1:rpki@1:salt@1:snmp@3:ssh@2:sstp@4:system@26:vrf@3:vrrp@3:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2"
// Release version: 1.4-rolling-202307070317

spine1-boot.cfg

interfaces {
    ethernet eth1 {
        address "10.1.12.2/24"
        duplex "auto"
        mtu "9000"
        offload {
            gso { }
            sg { }
        }
        speed "auto"
    }
    ethernet eth2 {
        address "10.1.11.2/24"
        duplex "auto"
        mtu "9000"
        offload {
            gso { }
            sg { }
        }
        speed "auto"
    }
    loopback     lo { }
}
protocols {
    bgp {
        address-family {
            ipv4-unicast {
                network                 10.1.11.0/24 { }
                network                 10.1.12.0/24 { }
            }
        }
        neighbor 10.1.11.1 {
            address-family {
                ipv4-unicast { }
            }
            remote-as "65008"
        }
        neighbor 10.1.12.1 {
            address-family {
                ipv4-unicast { }
            }
            remote-as "65005"
        }
        parameters {
            bestpath {
                as-path {
                    multipath-relax { }
                }
            }
            router-id "10.1.8.1"
        }
        system-as "800"
    }
}
system {
    config-management {
        commit-revisions "100"
    }
    conntrack {
        modules {
            ftp { }
            h323 { }
            nfs { }
            pptp { }
            sip { }
            sqlnet { }
            tftp { }
        }
    }
    console {
        device ttyS0 {
            speed "9600"
        }
    }
    host-name "spine1"
    login {
        user vyos {
            authentication {
                encrypted-password "$6$QxPS.uk6mfo$9QBSo8u1FkH16gMyAVhus6fU3LOzvLR9Z9.82m3tiHFAxTtIkhaZSWssSgzt4v4dGAL8rhVQxTg0oAG9/q11h/"
                plaintext-password ""
            }
        }
    }
    time-zone "UTC"
}

// Warning: Do not remove the following line.
// // vyos-config-version: "bgp@4:broadcast-relay@1:cluster@1:config-management@1:conntrack@3:conntrack-sync@2:container@1:dhcp-relay@2:dhcp-server@6:dhcpv6-server@1:dns-dynamic@1:dns-forwarding@4:firewall@10:flow-accounting@1:https@4:ids@1:interfaces@29:ipoe-server@1:ipsec@12:isis@3:l2tp@4:lldp@1:mdns@1:monitoring@1:nat@5:nat66@1:ntp@2:openconnect@2:ospf@2:policy@5:pppoe-server@6:pptp@2:qos@2:quagga@11:rip@1:rpki@1:salt@1:snmp@3:ssh@2:sstp@4:system@26:vrf@3:vrrp@3:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2"
// // Release version: 1.4-rolling-202307070317

leaf0-boot.cfg

interfaces {
    ethernet eth1 {
        address 10.1.10.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    ethernet eth2 {
        address 10.1.12.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    ethernet eth3 {
        address 10.1.5.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    loopback lo {
    }
}
nat {
    source {
        rule 100 {
            outbound-interface eth0
            source {
                address 10.1.0.0/16
            }
            translation {
                address masquerade
            }
        }
    }
}
protocols {
    bgp {
        address-family {
            ipv4-unicast {
                network 10.1.5.0/24 {
                }
                network 10.1.10.0/24 {
                }
                network 10.1.12.0/24 {
                }
            }
        }
        neighbor 10.1.5.10 {
            address-family {
                ipv4-unicast {
                    nexthop-self {
                    }
                    route-reflector-client
                }
            }
            remote-as 65005
        }
        neighbor 10.1.5.11 {
            address-family {
                ipv4-unicast {
                    nexthop-self {
                    }
                    route-reflector-client
                }
            }
            remote-as 65005
        }
        neighbor 10.1.10.2 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 500
        }
        neighbor 10.1.12.2 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 800
        }
        parameters {
            bestpath {
                as-path {
                    multipath-relax
                }
            }
            router-id 10.1.5.1
        }
        system-as 65005
    }
}
system {
    config-management {
        commit-revisions 100
    }
    console {
        device ttyS0 {
            speed 9600
        }
    }
    host-name leaf0
    login {
        user vyos {
            authentication {
                encrypted-password $6$QxPS.uk6mfo$9QBSo8u1FkH16gMyAVhus6fU3LOzvLR9Z9.82m3tiHFAxTtIkhaZSWssSgzt4v4dGAL8rhVQxTg0oAG9/q11h/
                plaintext-password ""
            }
        }
    }
    time-zone UTC
}
// Warning: Do not remove the following line.
// vyos-config-version: "bgp@4:broadcast-relay@1:cluster@1:config-management@1:conntrack@3:conntrack-sync@2:container@1:dhcp-relay@2:dhcp-server@6:dhcpv6-server@1:dns-dynamic@1:dns-forwarding@4:firewall@10:flow-accounting@1:https@4:ids@1:interfaces@29:ipoe-server@1:ipsec@12:isis@3:l2tp@4:lldp@1:mdns@1:monitoring@1:nat@5:nat66@1:ntp@2:openconnect@2:ospf@2:policy@5:pppoe-server@6:pptp@2:qos@2:quagga@11:rip@1:rpki@1:salt@1:snmp@3:ssh@2:sstp@4:system@26:vrf@3:vrrp@3:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2"
// Release version: 1.4-rolling-202307070317

leaf1-boot.cfg

interfaces {
    ethernet eth1 {
        address 10.1.34.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    ethernet eth2 {
        address 10.1.11.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    ethernet eth3 {
        address 10.1.8.1/24
        duplex auto
        mtu 9000
        speed auto
    }
    loopback lo {
    }
}
nat {
    source {
        rule 100 {
            outbound-interface eth0
            source {
                address 10.1.0.0/16
            }
            translation {
                address masquerade
            }
        }
    }
}
protocols {
    bgp {
        address-family {
            ipv4-unicast {
                network 10.1.8.0/24 {
                }
                network 10.1.11.0/24 {
                }
                network 10.1.34.0/24 {
                }
            }
        }
        neighbor 10.1.8.10 {
            address-family {
                ipv4-unicast {
                    nexthop-self {
                    }
                    route-reflector-client
                }
            }
            remote-as 65008
        }
        neighbor 10.1.8.11 {
            address-family {
                ipv4-unicast {
                    nexthop-self {
                    }
                    route-reflector-client
                }
            }
            remote-as 65008
        }
        neighbor 10.1.11.2 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 800
        }
        neighbor 10.1.34.2 {
            address-family {
                ipv4-unicast {
                }
            }
            remote-as 500
        }
        parameters {
            bestpath {
                as-path {
                    multipath-relax
                }
            }
            router-id 10.1.8.1
        }
        system-as 65008
    }
}
system {
    config-management {
        commit-revisions 100
    }
    console {
        device ttyS0 {
            speed 9600
        }
    }
    host-name leaf1
    login {
        user vyos {
            authentication {
                encrypted-password $6$QxPS.uk6mfo$9QBSo8u1FkH16gMyAVhus6fU3LOzvLR9Z9.82m3tiHFAxTtIkhaZSWssSgzt4v4dGAL8rhVQxTg0oAG9/q11h/
                plaintext-password ""
            }
        }
    }
    time-zone UTC
}
// Warning: Do not remove the following line.
// vyos-config-version: "bgp@4:broadcast-relay@1:cluster@1:config-management@1:conntrack@3:conntrack-sync@2:container@1:dhcp-relay@2:dhcp-server@6:dhcpv6-server@1:dns-dynamic@1:dns-forwarding@4:firewall@10:flow-accounting@1:https@4:ids@1:interfaces@29:ipoe-server@1:ipsec@12:isis@3:l2tp@4:lldp@1:mdns@1:monitoring@1:nat@5:nat66@1:ntp@2:openconnect@2:ospf@2:policy@5:pppoe-server@6:pptp@2:qos@2:quagga@11:rip@1:rpki@1:salt@1:snmp@3:ssh@2:sstp@4:system@26:vrf@3:vrrp@3:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2"
// Release version: 1.4-rolling-202307070317

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