K8s flink-operator 例子
在 Kubernetes 集群上安装证书管理器以添加 Webhook 组件（每个 Kubernetes 集群只需要一次）现在可以通过 192.168.56.211:8081 访问 Flink 仪表板。如果您遇到连接问题或者更喜欢使用 Dockerhub，则可以。要公开 Flink 仪表板，您可以添加端口转发规则或查看。我的环境 k8s 1.30 最新版本了。5.提交 Flink 作业。要查找稳定版
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1.参考官网：
https://nightlies.apache.org/flink/flink-kubernetes-operator-docs-stable/docs/try-flink-kubernetes-operator/quick-start/2.首先环境具备 k8s、helm
我的环境 k8s 1.30 最新版本了
[root@k8s-master ~]# kubectl get no -owide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
k8s-master Ready control-plane 156d v1.30.0 192.168.56.211 <none> CentOS Linux 7 (Core) 5.4.274-1.el7.elrepo.x86_64 containerd://1.6.9
k8s-node1 Ready <none> 156d v1.30.0 192.168.56.212 <none> CentOS Linux 7 (Core) 5.4.274-1.el7.elrepo.x86_64 containerd://1.6.9
k8s-node2 Ready <none> 156d v1.30.0 192.168.56.213 <none> CentOS Linux 7 (Core) 5.4.274-1.el7.elrepo.x86_64 containerd://1.6.9
[root@k8s-master ~]# kubectl get all -A
NAMESPACE NAME READY STATUS RESTARTS AGE
default pod/flink-kubernetes-operator-f56d6bf6f-skcnn 2/2 Running 0 23m
kube-system pod/calico-kube-controllers-6df7596dbd-4scr5 1/1 Running 0 22m
kube-system pod/calico-node-8b5p2 1/1 Running 6 (30m ago) 156d
kube-system pod/calico-node-p8bhd 1/1 Running 6 (29m ago) 156d
kube-system pod/calico-node-x4dr2 1/1 Running 7 (15m ago) 156d
kube-system pod/coredns-7b5944fdcf-ms42h 1/1 Running 0 22m
kube-system pod/coredns-7b5944fdcf-rndst 1/1 Running 0 22m
kube-system pod/etcd-k8s-master 1/1 Running 7 (15m ago) 156d
kube-system pod/kube-apiserver-k8s-master 1/1 Running 7 (15m ago) 156d
kube-system pod/kube-controller-manager-k8s-master 1/1 Running 9 (15m ago) 156d
kube-system pod/kube-proxy-dr4lp 1/1 Running 6 (29m ago) 156d
kube-system pod/kube-proxy-nsvhl 1/1 Running 6 (30m ago) 156d
kube-system pod/kube-proxy-sgkfs 1/1 Running 7 (15m ago) 156d
kube-system pod/kube-scheduler-k8s-master 1/1 Running 7 (15m ago) 156d
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default service/flink-operator-webhook-service ClusterIP 10.97.88.103 <none> 443/TCP 6d23h
default service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 156d
kube-system service/kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 156d
NAMESPACE NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
kube-system daemonset.apps/calico-node 3 3 3 3 3 kubernetes.io/os=linux 156d
kube-system daemonset.apps/kube-proxy 3 3 3 3 3 kubernetes.io/os=linux 156d
NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE
default deployment.apps/flink-kubernetes-operator 1/1 1 1 6d23h
kube-system deployment.apps/calico-kube-controllers 1/1 1 1 156d
kube-system deployment.apps/coredns 2/2 2 2 156d
NAMESPACE NAME DESIRED CURRENT READY AGE
default replicaset.apps/flink-kubernetes-operator-f56d6bf6f 1 1 1 6d23h
kube-system replicaset.apps/calico-kube-controllers-6df7596dbd 1 1 1 156d
kube-system replicaset.apps/coredns-7b5944fdcf 2 2 2 156d
[root@k8s-master ~]#
3.在 Kubernetes 集群上安装证书管理器以添加 Webhook 组件（每个 Kubernetes 集群只需要一次）
kubectl create -f https://github.com/jetstack/cert-manager/releases/download/v1.8.2/cert-manager.yaml
如果证书管理器安装因任何原因失败，可以通过传递
--set webhook.create=false给操作员的 helm install 命令来禁用 Webhook。
4.Helm 图表部署选定的稳定 Flink Kubernetes Operator 版本：
要查找稳定版本列表，请访问Downloads | Apache Flink
Helm 图表默认指向ghcr.io/apache/flink-kubernetes-operator镜像存储库。如果您遇到连接问题或者更喜欢使用 Dockerhub，则可以--set image.repository=apache/flink-kubernetes-operator在安装过程中使用。
执行命令：
helm install flink-kubernetes-operator flink-operator-repo/flink-kubernetes-operator --set image.repository=apache/flink-kubernetes-operator
helm repo add flink-operator-repo https://downloads.apache.org/flink/flink-kubernetes-operator-1.9.0/
helm install flink-kubernetes-operator flink-operator-repo/flink-kubernetes-operator
[root@k8s-master ~]# helm install flink-kubernetes-operator flink-operator-repo/flink-kubernetes-operator
NAME: flink-kubernetes-operator
LAST DEPLOYED: Wed Sep 25 19:43:46 2024
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
[root@k8s-master ~]# helm list
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
flink-kubernetes-operator default 1 2024-09-25 19:43:46.63808568 +0800 CST deployed flink-kubernetes-operator-1.9.0 1.9.0
[root@k8s-master ~]# kubectl get all -A
NAMESPACE NAME READY STATUS RESTARTS AGE
cert-manager pod/cert-manager-cainjector-5dbdc949c4-gjfln 1/1 Running 0 9m45s
cert-manager pod/cert-manager-d68cffc95-rz7nr 1/1 Running 0 9m45s
cert-manager pod/cert-manager-webhook-759ddb6555-4p7n6 1/1 Running 0 9m45s
default pod/flink-kubernetes-operator-68cbbd7779-l5bbr 2/2 Running 0 38s
kube-system pod/calico-kube-controllers-6df7596dbd-4scr5 1/1 Running 0 34m
kube-system pod/calico-node-8b5p2 1/1 Running 6 (41m ago) 156d
kube-system pod/calico-node-p8bhd 1/1 Running 6 (41m ago) 156d
kube-system pod/calico-node-x4dr2 1/1 Running 7 (27m ago) 156d
kube-system pod/coredns-7b5944fdcf-ms42h 1/1 Running 0 34m
kube-system pod/coredns-7b5944fdcf-rndst 1/1 Running 0 34m
kube-system pod/etcd-k8s-master 1/1 Running 7 (27m ago) 156d
kube-system pod/kube-apiserver-k8s-master 1/1 Running 7 (27m ago) 156d
kube-system pod/kube-controller-manager-k8s-master 1/1 Running 9 (27m ago) 156d
kube-system pod/kube-proxy-dr4lp 1/1 Running 6 (41m ago) 156d
kube-system pod/kube-proxy-nsvhl 1/1 Running 6 (41m ago) 156d
kube-system pod/kube-proxy-sgkfs 1/1 Running 7 (27m ago) 156d
kube-system pod/kube-scheduler-k8s-master 1/1 Running 7 (27m ago) 156d
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
cert-manager service/cert-manager ClusterIP 10.108.134.142 <none> 9402/TCP 9m46s
cert-manager service/cert-manager-webhook ClusterIP 10.107.201.217 <none> 443/TCP 9m46s
default service/flink-operator-webhook-service ClusterIP 10.100.57.92 <none> 443/TCP 38s
default service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 156d
kube-system service/kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 156d
NAMESPACE NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
kube-system daemonset.apps/calico-node 3 3 3 3 3 kubernetes.io/os=linux 156d
kube-system daemonset.apps/kube-proxy 3 3 3 3 3 kubernetes.io/os=linux 156d
NAMESPACE NAME READY UP-TO-DATE AVAILABLE AGE
cert-manager deployment.apps/cert-manager 1/1 1 1 9m46s
cert-manager deployment.apps/cert-manager-cainjector 1/1 1 1 9m46s
cert-manager deployment.apps/cert-manager-webhook 1/1 1 1 9m45s
default deployment.apps/flink-kubernetes-operator 1/1 1 1 38s
kube-system deployment.apps/calico-kube-controllers 1/1 1 1 156d
kube-system deployment.apps/coredns 2/2 2 2 156d
NAMESPACE NAME DESIRED CURRENT READY AGE
cert-manager replicaset.apps/cert-manager-cainjector-5dbdc949c4 1 1 1 9m46s
cert-manager replicaset.apps/cert-manager-d68cffc95 1 1 1 9m46s
cert-manager replicaset.apps/cert-manager-webhook-759ddb6555 1 1 1 9m45s
default replicaset.apps/flink-kubernetes-operator-68cbbd7779 1 1 1 38s
kube-system replicaset.apps/calico-kube-controllers-6df7596dbd 1 1 1 156d
kube-system replicaset.apps/coredns-7b5944fdcf 2 2 2 156d
[root@k8s-master ~]#
5.提交 Flink 作业 #
一旦操作员如上一步所示运行，您就可以提交 Flink 作业了：
kubectl create -f https://raw.githubusercontent.com/apache/flink-kubernetes-operator/release-1.9/examples/basic.yaml
您可以跟踪您的作业日志，在成功启动后（在新环境中可能需要一分钟，几秒钟后），您可以：
kubectl logs -f deploy/basic-example
要公开 Flink 仪表板，您可以添加端口转发规则或查看入口配置选项：
kubectl port-forward svc/basic-example-rest 8081:8081 --address 192.168.56.211
或者是：
kubectl port-forward svc/basic-example-rest 8081:8081 --address 0.0.0.0现在可以通过 192.168.56.211:8081 访问 Flink 仪表板。
6.其中会用到的镜像：
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