k8s L4层负载均衡metallb BGP方式

华为CE8860交换机配置：

bgp 65520
router-id 172.20.250.250
group k8s-cn-prod external
peer k8s-cn-prod as-number 65518
peer k8s-cn-prod ebgp-max-hop 255
peer k8s-cn-prod connect-interface LoopBack0
peer 172.20.100.1 as-number 65523
peer 172.20.100.1 group k8s-cn-prod
peer 172.20.100.2 as-number 65523
peer 172.20.100.2 group k8s-cn-prod
peer 172.20.100.3 as-number 65523
peer 172.20.100.3 group k8s-cn-prod
#
ipv4-family unicast
maximum load-balancing ebgp 32 ecmp-nexthop-changed
peer k8s-cn-prod enable
peer 172.20.100.1 enable
peer 172.20.100.1 group k8s-cn-prod
peer 172.20.100.2 enable
peer 172.20.100.2 group k8s-cn-prod
peer 172.20.100.3 enable
peer 172.20.100.3 group k8s-cn-prod

k8s 配置

安装
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.11.0/manifests/namespace.yaml
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.11.0/manifests/metallb.yaml
配置
cat bgp-config.yaml
apiVersion: v1
kind: ConfigMap
metadata:
namespace: metallb-system
name: config
data:
config: |
peers:
- peer-address: 172.20.250.250
peer-asn: 65520
my-asn: 65518
address-pools:
- name: default
protocol: bgp
addresses:
- 172.20.15.0/24

最后

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