Cilium是一个开源软件，用于透明地提供和保护使用Kubernetes，Docker和Mesos等Linux容器管理平台部署的应用程序服务之间的网络和API连接。
Cilium基于一种名为BPF的新Linux内核技术，它可以在Linux内部动态插入强大的安全性，可见性和网络控制逻辑。 除了提供传统的网络级安全性之外，BPF的灵活性还可以在API和进程级别上实现安全性，以保护容器或容器内的通信。由于BPF在Linux内核中运行，因此可以应用和更新Cilium安全策略，而无需对应用程序代码或容器配置进行任何更改。
[root@k8s-master01 ~]# curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
[root@k8s-master01 ~]# chmod 700 get_helm.sh
[root@k8s-master01 ~]# ./get_helm.sh[root@k8s-master01 ~]# helm repo add cilium https://helm.cilium.io
[root@k8s-master01 ~]# helm install cilium cilium/cilium --namespace kube-system --set hubble.relay.enabled=true --set hubble.ui.enabled=true --set prometheus.enabled=true --set operator.prometheus.enabled=true --set hubble.enabled=true --set hubble.metrics.enabled="{dns,drop,tcp,flow,port-distribution,icmp,http}"
NAME: cilium
LAST DEPLOYED: Sun Sep 11 00:04:30 2022
NAMESPACE: kube-system
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
You have successfully installed Cilium with Hubble.
Your release version is 1.12.1.
For any further help, visit https://docs.cilium.io/en/v1.12/gettinghelp
[root@k8s-master01 ~]#[root@k8s-master01 ~]# kubectl get pod -A | grep cil
kube-system cilium-gmr6c 1/1 Running 0 5m3s
kube-system cilium-kzgdj 1/1 Running 0 5m3s
kube-system cilium-operator-69b677f97c-6pw4k 1/1 Running 0 5m3s
kube-system cilium-operator-69b677f97c-xzzdk 1/1 Running 0 5m3s
kube-system cilium-q2rnr 1/1 Running 0 5m3s
kube-system cilium-smx5v 1/1 Running 0 5m3s
kube-system cilium-tdjq4 1/1 Running 0 5m3s
[root@k8s-master01 ~]#[root@k8s-master01 yaml]# wget https://raw.githubusercontent.com/cilium/cilium/1.12.1/examples/kubernetes/addons/prometheus/monitoring-example.yaml
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl apply -f monitoring-example.yaml
namespace/cilium-monitoring created
serviceaccount/prometheus-k8s created
configmap/grafana-config created
configmap/grafana-cilium-dashboard created
configmap/grafana-cilium-operator-dashboard created
configmap/grafana-hubble-dashboard created
configmap/prometheus created
clusterrole.rbac.authorization.k8s.io/prometheus created
clusterrolebinding.rbac.authorization.k8s.io/prometheus created
service/grafana created
service/prometheus created
deployment.apps/grafana created
deployment.apps/prometheus created
[root@k8s-master01 yaml]#[root@k8s-master01 yaml]# wget https://raw.githubusercontent.com/cilium/cilium/master/examples/kubernetes/connectivity-check/connectivity-check.yaml
[root@k8s-master01 yaml]# sed -i "s#google.com#baidu.cn#g" connectivity-check.yaml
[root@k8s-master01 yaml]# kubectl apply -f connectivity-check.yaml
deployment.apps/echo-a created
deployment.apps/echo-b created
deployment.apps/echo-b-host created
deployment.apps/pod-to-a created
deployment.apps/pod-to-external-1111 created
deployment.apps/pod-to-a-denied-cnp created
deployment.apps/pod-to-a-allowed-cnp created
deployment.apps/pod-to-external-fqdn-allow-google-cnp created
deployment.apps/pod-to-b-multi-node-clusterip created
deployment.apps/pod-to-b-multi-node-headless created
deployment.apps/host-to-b-multi-node-clusterip created
deployment.apps/host-to-b-multi-node-headless created
deployment.apps/pod-to-b-multi-node-nodeport created
deployment.apps/pod-to-b-intra-node-nodeport created
service/echo-a created
service/echo-b created
service/echo-b-headless created
service/echo-b-host-headless created
ciliumnetworkpolicy.cilium.io/pod-to-a-denied-cnp created
ciliumnetworkpolicy.cilium.io/pod-to-a-allowed-cnp created
ciliumnetworkpolicy.cilium.io/pod-to-external-fqdn-allow-google-cnp created
[root@k8s-master01 yaml]#[root@k8s-master01 yaml]# kubectl get pod -A
NAMESPACE NAME READY STATUS RESTARTS AGE
cilium-monitoring grafana-59957b9549-6zzqh 1/1 Running 0 10m
cilium-monitoring prometheus-7c8c9684bb-4v9cl 1/1 Running 0 10m
default chenby-75b5d7fbfb-7zjsr 1/1 Running 0 27h
default chenby-75b5d7fbfb-hbvr8 1/1 Running 0 27h
default chenby-75b5d7fbfb-ppbzg 1/1 Running 0 27h
default echo-a-6799dff547-pnx6w 1/1 Running 0 10m
default echo-b-fc47b659c-4bdg9 1/1 Running 0 10m
default echo-b-host-67fcfd59b7-28r9s 1/1 Running 0 10m
default host-to-b-multi-node-clusterip-69c57975d6-z4j2z 1/1 Running 0 10m
default host-to-b-multi-node-headless-865899f7bb-frrmc 1/1 Running 0 10m
default pod-to-a-allowed-cnp-5f9d7d4b9d-hcd8x 1/1 Running 0 10m
default pod-to-a-denied-cnp-65cc5ff97b-2rzb8 1/1 Running 0 10m
default pod-to-a-dfc64f564-p7xcn 1/1 Running 0 10m
default pod-to-b-intra-node-nodeport-677868746b-trk2l 1/1 Running 0 10m
default pod-to-b-multi-node-clusterip-76bbbc677b-knfq2 1/1 Running 0 10m
default pod-to-b-multi-node-headless-698c6579fd-mmvd7 1/1 Running 0 10m
default pod-to-b-multi-node-nodeport-5dc4b8cfd6-8dxmz 1/1 Running 0 10m
default pod-to-external-1111-8459965778-pjt9b 1/1 Running 0 10m
default pod-to-external-fqdn-allow-google-cnp-64df9fb89b-l9l4q 1/1 Running 0 10m
kube-system cilium-7rfj6 1/1 Running 0 56s
kube-system cilium-d4cch 1/1 Running 0 56s
kube-system cilium-h5x8r 1/1 Running 0 56s
kube-system cilium-operator-5dbddb6dbf-flpl5 1/1 Running 0 56s
kube-system cilium-operator-5dbddb6dbf-gcznc 1/1 Running 0 56s
kube-system cilium-t2xlz 1/1 Running 0 56s
kube-system cilium-z65z7 1/1 Running 0 56s
kube-system coredns-665475b9f8-jkqn8 1/1 Running 1 (36h ago) 36h
kube-system hubble-relay-59d8575-9pl9z 1/1 Running 0 56s
kube-system hubble-ui-64d4995d57-nsv9j 2/2 Running 0 56s
kube-system metrics-server-776f58c94b-c6zgs 1/1 Running 1 (36h ago) 37h
[root@k8s-master01 yaml]#[root@k8s-master01 yaml]# kubectl edit svc -n kube-system hubble-ui
service/hubble-ui edited
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl edit svc -n cilium-monitoring grafana
service/grafana edited
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl edit svc -n cilium-monitoring prometheus
service/prometheus edited
[root@k8s-master01 yaml]#
type: NodePort[root@k8s-master01 yaml]# kubectl get svc -A | grep monit
cilium-monitoring grafana NodePort 10.100.250.17 <none> 3000:30707/TCP 15m
cilium-monitoring prometheus NodePort 10.100.131.243 <none> 9090:31155/TCP 15m
[root@k8s-master01 yaml]#
[root@k8s-master01 yaml]# kubectl get svc -A | grep hubble
kube-system hubble-metrics ClusterIP None <none> 9965/TCP 5m12s
kube-system hubble-peer ClusterIP 10.100.150.29 <none> 443/TCP 5m12s
kube-system hubble-relay ClusterIP 10.109.251.34 <none> 80/TCP 5m12s
kube-system hubble-ui NodePort 10.102.253.59 <none> 80:31219/TCP 5m12s
[root@k8s-master01 yaml]#http://192.168.1.61:30707
http://192.168.1.61:31155
http://192.168.1.61:31219关于
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