自建Kubernetes的LoadBalancer类型服务方案-MetalLB
自建Kubernetes的LoadBalancer类型服务方案-MetalLB
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1. 环境
kubernetes环境:
* kubeadm v1.13.1,网络使用flannel
* helm v2.13.0
2. 安装
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helm fetch --untar stable/metallb cd metallb vim values.yaml # 配置ip池 helm install --name metallb --namespce kube-system ./ |
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configInline: # Example ARP Configuration address-pools: - name: default protocol: layer2 addresses: - 192.168.105.170-192.168.105.175 |
3. 使用示例
示例:
nginx-metallb.yaml
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apiVersion: apps/v1beta2 kind: Deployment metadata: name: nginx-metallb spec: selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx ports: - name: http containerPort: 80 --- apiVersion: v1 kind: Service metadata: name: nginx-metallb spec: ports: - name: http port: 80 protocol: TCP targetPort: 80 selector: app: nginx type: LoadBalancer |
正常结果是可以看到svc的EXTERNAL-IP列有分配IP池中的地址,kubernetes外部也可以访问。
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# 访问测试 lb_ip=$(kubectl get svc nginx-metallb -ojsonpath={.status.loadBalancer.ingress[0].ip}) curl $lb_ip |
参考链接:
[1] https://metallb.universe.tf/
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