我的命名空间很少部署。其中一个部署具有特定标签(my-label=yes(。我想得到所有带有这个标签的吊舱。
kubectl:就是这样做的
kdev get pods -l my-label=yes
它起作用了。
现在我想用Kubernetes API来实现它。这是我得到的最接近的点：
curl https://kubernetes.default.svc/api/v1/namespaces/XXX/pods --silent --header "Authorization: Bearer $TOKEN" --insecure
此命令获取命名空间中的所有pod。我想将结果过滤到所有具有此请求标签的pod中。怎么做？
更广泛的问题是：这是否可能"；翻译"；将kubectl命令转换为REST API调用？
这是否可能"翻译"；将kubectl命令转换为REST API调用？
当您使用kubectl执行任何命令时，在将其发送到Kubernetes API服务器之前，它会在内部转换为带有json负载的REST调用。一种简单的检查方法是在增加的情况下运行命令
kubectl get pods -n kube-system -l=tier=control-plane --v=8
I0730 15:21:01.907211 5320 loader.go:375] Config loaded from file: /Users/arghyasadhu/.kube/config
I0730 15:21:01.912119 5320 round_trippers.go:420] GET https://xx.xx.xxx.xxx:6443/api/v1/namespaces/kube-system/pods?labelSelector=tier%3Dcontrol-plane&limit=500
I0730 15:21:01.912135 5320 round_trippers.go:427] Request Headers:
I0730 15:21:01.912139 5320 round_trippers.go:431] Accept: application/json;as=Table;v=v1;g=meta.k8s.io,application/json;as=Table;v=v1beta1;g=meta.k8s.io,application/json
I0730 15:21:01.912143 5320 round_trippers.go:431] User-Agent: kubectl/v1.18.0 (darwin/amd64) kubernetes/9e99141
I0730 15:21:02.071778 5320 round_trippers.go:446] Response Status: 200 OK in 159 milliseconds
I0730 15:21:02.071842 5320 round_trippers.go:449] Response Headers:
I0730 15:21:02.071858 5320 round_trippers.go:452] Cache-Control: no-cache, private
I0730 15:21:02.071865 5320 round_trippers.go:452] Content-Type: application/json
I0730 15:21:02.071870 5320 round_trippers.go:452] Date: Thu, 30 Jul 2020 09:51:02 GMT
I0730 15:21:02.114281 5320 request.go:1068] Response Body: {"kind":"Table","apiVersion":"meta.k8s.io/v1","metadata":{"selfLink":"/api/v1/namespaces/kube-system/pods","resourceVersion":"1150005"},"columnDefinitions":[{"name":"Name","type":"string","format":"name","description":"Name must be unique within a namespace. Is required when creating resources, although some resources may allow a client to request the generation of an appropriate name automatically. Name is primarily intended for creation idempotence and configuration definition. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/identifiers#names","priority":0},{"name":"Ready","type":"string","format":"","description":"The aggregate readiness state of this pod for accepting traffic.","priority":0},{"name":"Status","type":"string","format":"","description":"The aggregate status of the containers in this pod.","priority":0},{"name":"Restarts","type":"integer","format":"","description":"The number of times the containers in this pod have been restarted.","priority":0},{"name":"Age","type":"strin [truncated 16503 chars]
找到了。
curl https://kubernetes.default.svc/api/v1/namespaces/XXX/pods?labelSelector=my-label%3Dyes --silent --header "Authorization: Bearer $TOKEN" --insecure