1. 系统要求
- Kubernetes， >= 1.16.0-0
- Helm， >= 3.0
- Linux 内核 >= 4.9.17
CentOS 7 升级内核过程，可以参考 Calico 下如何切换数据面到 eBPF 。
2. 卸载 Calico
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kubectl -n kube-system delete ds calico-node
kubectl -n kube-system delete deploy calico-kube-controllers
kubectl -n kube-system delete sa calico-node
kubectl -n kube-system delete sa calico-kube-controllers
kubectl -n kube-system delete cm calico-config
kubectl -n kube-system delete secret calico-config
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kubectl get crd | grep calico | awk '{print $1}' | xargs kubectl delete crd
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rm -rf /etc/cni/net.d/*
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3. 安装 Cilium
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helm repo add cilium https://helm.cilium.io/
helm install cilium cilium/cilium --version 1.10.4
--namespace kube-system
--set hubble.relay.enabled=true
--set hubble.ui.enabled=true
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- 将 Hubble UI 改为 NodePort 访问
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kubectl -n kube-system patch svc hubble-ui -p '{"spec": {"type": "NodePort"}}'
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kubectl -n kube-system get svc hubble-ui
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
hubble-ui NodePort 10.106.132.71 <none> 80:32572/TCP 11m
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4. 访问 Hubble 查看网络连接
访问主机 IP:32572 ，即可查看到可视化的拓扑网络。
5. 参考
- https://docs.cilium.io/en/stable/gettingstarted/k8s-install-default/
