kubernetes提供了丰富的API接口，用户不仅可以通过CLI命令行去调用API接口，而且还可以通过client库方便的调用API接口
https://kubernetes.io/docs/reference/using-api/client-libraries/，提供了官方支持的和社区支持的不同语言的client库
本文将着重体验python版本的client库的使用
源码安装 1 2 3 git clone --recursive https://github.com/kubernetes-client/python.git cd python python setup.py install
pip安装 Example 1 2 3 4 5 6 7 8 9 10 from kubernetes import client, config # Configs can be set in Configuration class directly or using helper utility config.load_kube_config() v1 = client.CoreV1Api() print("Listing pods with their IPs:") ret = v1.list_pod_for_all_namespaces(watch=False) for i in ret.items: print("%s\t%s\t%s" % (i.status.pod_ip, i.metadata.namespace, i.metadata.name))
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 root@ubuntu:~/python# python test_list_pods.py Listing pods with their IPs: 10.244.0.8 default edgex-app-service-configurable-rules-d66d779c7-ksw7c 10.244.0.9 default edgex-core-command-6f7cd7d57f-tnmmp 10.244.0.18 default edgex-core-consul-64b88766-7q7kr 10.244.0.10 default edgex-core-data-57b99d7f89-gpfgs 10.244.0.11 default edgex-core-metadata-58dcc95ff4-9ssjg 10.244.0.12 default edgex-device-rest-7944449548-nzcfj 10.244.0.13 default edgex-device-virtual-6c7b8d7499-csz85 10.244.0.14 default edgex-redis-67fffb7666-pvqgw 10.244.0.15 default edgex-support-notifications-58dc7f76b4-tsdxn 10.244.0.16 default edgex-support-rulesengine-8657b7c988-zr8pv 10.244.0.17 default edgex-support-scheduler-d6fd467db-tfqw7 10.244.0.19 default edgex-sys-mgmt-agent-79b476d8dc-2jdw4 10.244.0.20 default edgex-ui-8cfc7f95d-vvhzc 10.244.0.4 kube-system coredns-f9fd979d6-cqpss 10.244.0.3 kube-system coredns-f9fd979d6-kvbzm 172.18.0.2 kube-system etcd-kind-control-plane 172.18.0.2 kube-system kindnet-br2qc 172.18.0.2 kube-system kube-apiserver-kind-control-plane 172.18.0.2 kube-system kube-controller-manager-kind-control-plane 172.18.0.2 kube-system kube-proxy-4chlm 172.18.0.2 kube-system kube-scheduler-kind-control-plane 10.244.0.7 kube-system metrics-server-8dc97c749-h6w8n 10.244.0.6 kubernetes-dashboard dashboard-metrics-scraper-7b59f7d4df-5rwc6 10.244.0.5 kubernetes-dashboard kubernetes-dashboard-665f4c5ff-l6tqn 10.244.0.2 local-path-storage local-path-provisioner-78776bfc44-xl4ht root@ubuntu:~/python# root@ubuntu:~/python# kubectl get pods --all-namespaces -o wide NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES default edgex-app-service-configurable-rules-d66d779c7-ksw7c 1/1 Running 14 21h 10.244.0.8 kind-control-plane <none> <none> default edgex-core-command-6f7cd7d57f-tnmmp 1/1 Running 21 21h 10.244.0.9 kind-control-plane <none> <none> default edgex-core-consul-64b88766-7q7kr 1/1 Running 0 21h 10.244.0.18 kind-control-plane <none> <none> default edgex-core-data-57b99d7f89-gpfgs 1/1 Running 19 21h 10.244.0.10 kind-control-plane <none> <none> default edgex-core-metadata-58dcc95ff4-9ssjg 1/1 Running 21 21h 10.244.0.11 kind-control-plane <none> <none> default edgex-device-rest-7944449548-nzcfj 1/1 Running 15 21h 10.244.0.12 kind-control-plane <none> <none> default edgex-device-virtual-6c7b8d7499-csz85 1/1 Running 13 21h 10.244.0.13 kind-control-plane <none> <none> default edgex-redis-67fffb7666-pvqgw 1/1 Running 0 21h 10.244.0.14 kind-control-plane <none> <none> default edgex-support-notifications-58dc7f76b4-tsdxn 1/1 Running 13 21h 10.244.0.15 kind-control-plane <none> <none> default edgex-support-rulesengine-8657b7c988-zr8pv 1/1 Running 0 21h 10.244.0.16 kind-control-plane <none> <none> default edgex-support-scheduler-d6fd467db-tfqw7 1/1 Running 14 21h 10.244.0.17 kind-control-plane <none> <none> default edgex-sys-mgmt-agent-79b476d8dc-2jdw4 1/1 Running 0 21h 10.244.0.19 kind-control-plane <none> <none> default edgex-ui-8cfc7f95d-vvhzc 0/1 ImagePullBackOff 0 21h 10.244.0.20 kind-control-plane <none> <none> kube-system coredns-f9fd979d6-cqpss 1/1 Running 0 4d6h 10.244.0.4 kind-control-plane <none> <none> kube-system coredns-f9fd979d6-kvbzm 1/1 Running 0 4d6h 10.244.0.3 kind-control-plane <none> <none> kube-system etcd-kind-control-plane 1/1 Running 0 4d6h 172.18.0.2 kind-control-plane <none> <none> kube-system kindnet-br2qc 1/1 Running 0 4d6h 172.18.0.2 kind-control-plane <none> <none> kube-system kube-apiserver-kind-control-plane 1/1 Running 0 23h 172.18.0.2 kind-control-plane <none> <none> kube-system kube-controller-manager-kind-control-plane 1/1 Running 1 4d6h 172.18.0.2 kind-control-plane <none> <none> kube-system kube-proxy-4chlm 1/1 Running 0 4d6h 172.18.0.2 kind-control-plane <none> <none> kube-system kube-scheduler-kind-control-plane 1/1 Running 1 4d6h 172.18.0.2 kind-control-plane <none> <none> kube-system metrics-server-8dc97c749-h6w8n 1/1 Running 0 21h 10.244.0.7 kind-control-plane <none> <none> kubernetes-dashboard dashboard-metrics-scraper-7b59f7d4df-5rwc6 1/1 Running 0 21h 10.244.0.6 kind-control-plane <none> <none> kubernetes-dashboard kubernetes-dashboard-665f4c5ff-l6tqn 1/1 Running 0 21h 10.244.0.5 kind-control-plane <none> <none> local-path-storage local-path-provisioner-78776bfc44-xl4ht 1/1 Running 1 4d6h 10.244.0.2 kind-control-plane <none> <none>
更多的examples：https://github.com/kubernetes-client/python/tree/master/example
全文完。
