通过etcdctl查询Kubernetes中etcd数据

先确定Kubernetes的etcd版本。

docker images | grep etcd
registry.aliyuncs.com/google_containers/etcd
3.3.15-0
b2756210eeab
6 months ago
247MB

下载etcd二级制版本文件https://github.com/etcd-io/etcd/releases，其中包含了etcdctl执行文件。找到相应release版本下载。或者按照以下脚本下载安装。

vi download-etcd.sh
#!/bin/bash
ETCD_VER=v3.3.15
ETCD_DIR=/tmp/etcd-download
DOWNLOAD_URL=https://github.com/etcd-io/etcd/releases/download
# Download
mkdir ${ETCD_DIR} -p
cd ${ETCD_DIR}
wget ${DOWNLOAD_URL}/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz
tar -xzvf etcd-${ETCD_VER}-linux-amd64.tar.gz
# install
cd etcd-${ETCD_VER}-linux-amd64
cp etcdctl /usr/local/bin/

由于Kubernetes使用etcd v3版本的API，而且etcd默认使用tls，所以先配置几个环境变量。

vi /etc/profile
export ETCDCTL_API=3
export ETCDCTL_CACERT=/etc/kubernetes/pki/etcd/ca.crt
export ETCDCTL_CERT=/etc/kubernetes/pki/etcd/peer.crt
export ETCDCTL_KEY=/etc/kubernetes/pki/etcd/peer.key
source /etc/profile

获取所有的key列表。–prefix表示查找所有以/registry为前缀的key，–keys-only=true表示只给出key，不给出value。

etcdctl get /registry --prefix --keys-only=true | grep '/registry'
/registry/apiextensions.k8s.io/customresourcedefinitions/kongconsumers.configuration.konghq.com
/registry/apiextensions.k8s.io/customresourcedefinitions/kongcredentials.configuration.konghq.com
/registry/apiextensions.k8s.io/customresourcedefinitions/kongingresses.configuration.konghq.com
/registry/apiextensions.k8s.io/customresourcedefinitions/kongplugins.configuration.konghq.com
/registry/apiregistration.k8s.io/apiservices/v1.
/registry/apiregistration.k8s.io/apiservices/v1.admissionregistration.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.apiextensions.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.apps
/registry/apiregistration.k8s.io/apiservices/v1.authentication.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.authorization.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.autoscaling
/registry/apiregistration.k8s.io/apiservices/v1.batch
/registry/apiregistration.k8s.io/apiservices/v1.configuration.konghq.com
/registry/apiregistration.k8s.io/apiservices/v1.coordination.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.networking.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.rbac.authorization.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.scheduling.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1.storage.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.admissionregistration.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.apiextensions.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.authentication.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.authorization.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.batch
/registry/apiregistration.k8s.io/apiservices/v1beta1.certificates.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.coordination.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.events.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.extensions
/registry/apiregistration.k8s.io/apiservices/v1beta1.networking.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.node.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.policy
/registry/apiregistration.k8s.io/apiservices/v1beta1.rbac.authorization.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.scheduling.k8s.io
/registry/apiregistration.k8s.io/apiservices/v1beta1.storage.k8s.io
/registry/apiregistration.k8s.io/apiservices/v2beta1.autoscaling
/registry/apiregistration.k8s.io/apiservices/v2beta2.autoscaling
/registry/clusterrolebindings/cluster-admin
/registry/clusterrolebindings/flannel
/registry/clusterrolebindings/gateway-kong
/registry/clusterrolebindings/kubeadm:kubelet-bootstrap
/registry/clusterrolebindings/kubeadm:node-autoapprove-bootstrap
/registry/clusterrolebindings/kubeadm:node-autoapprove-certificate-rotation
/registry/clusterrolebindings/kubeadm:node-proxier
/registry/clusterrolebindings/system:basic-user
/registry/clusterrolebindings/system:controller:attachdetach-controller
/registry/clusterrolebindings/system:controller:certificate-controller
/registry/clusterrolebindings/system:controller:clusterrole-aggregation-controller
/registry/clusterrolebindings/system:controller:cronjob-controller
/registry/clusterrolebindings/system:controller:daemon-set-controller
/registry/clusterrolebindings/system:controller:deployment-controller
/registry/clusterrolebindings/system:controller:disruption-controller
/registry/clusterrolebindings/system:controller:endpoint-controller
/registry/clusterrolebindings/system:controller:expand-controller
/registry/clusterrolebindings/system:controller:generic-garbage-collector
/registry/clusterrolebindings/system:controller:horizontal-pod-autoscaler
/registry/clusterrolebindings/system:controller:job-controller
/registry/clusterrolebindings/system:controller:namespace-controller
/registry/clusterrolebindings/system:controller:node-controller
/registry/clusterrolebindings/system:controller:persistent-volume-binder
/registry/clusterrolebindings/system:controller:pod-garbage-collector
/registry/clusterrolebindings/system:controller:pv-protection-controller
/registry/clusterrolebindings/system:controller:pvc-protection-controller
/registry/clusterrolebindings/system:controller:replicaset-controller
/registry/clusterrolebindings/system:controller:replication-controller
/registry/clusterrolebindings/system:controller:resourcequota-controller
/registry/clusterrolebindings/system:controller:route-controller
/registry/clusterrolebindings/system:controller:service-account-controller
/registry/clusterrolebindings/system:controller:service-controller
/registry/clusterrolebindings/system:controller:statefulset-controller
/registry/clusterrolebindings/system:controller:ttl-controller
/registry/clusterrolebindings/system:coredns
/registry/clusterrolebindings/system:discovery
/registry/clusterrolebindings/system:kube-controller-manager
/registry/clusterrolebindings/system:kube-dns
/registry/clusterrolebindings/system:kube-scheduler
/registry/clusterrolebindings/system:node
/registry/clusterrolebindings/system:node-proxier
/registry/clusterrolebindings/system:public-info-viewer
/registry/clusterrolebindings/system:volume-scheduler
/registry/clusterroles/admin
/registry/clusterroles/cluster-admin
/registry/clusterroles/edit
/registry/clusterroles/flannel
/registry/clusterroles/gateway-kong
/registry/clusterroles/system:aggregate-to-admin
/registry/clusterroles/system:aggregate-to-edit
/registry/clusterroles/system:aggregate-to-view
/registry/clusterroles/system:auth-delegator
/registry/clusterroles/system:basic-user
/registry/clusterroles/system:certificates.k8s.io:certificatesigningrequests:nodeclient
/registry/clusterroles/system:certificates.k8s.io:certificatesigningrequests:selfnodeclient
/registry/clusterroles/system:controller:attachdetach-controller
/registry/clusterroles/system:controller:certificate-controller
/registry/clusterroles/system:controller:clusterrole-aggregation-controller
/registry/clusterroles/system:controller:cronjob-controller
/registry/clusterroles/system:controller:daemon-set-controller
/registry/clusterroles/system:controller:deployment-controller
/registry/clusterroles/system:controller:disruption-controller
/registry/clusterroles/system:controller:endpoint-controller
/registry/clusterroles/system:controller:expand-controller
/registry/clusterroles/system:controller:generic-garbage-collector
/registry/clusterroles/system:controller:horizontal-pod-autoscaler
/registry/clusterroles/system:controller:job-controller
/registry/clusterroles/system:controller:namespace-controller
/registry/clusterroles/system:controller:node-controller
/registry/clusterroles/system:controller:persistent-volume-binder
/registry/clusterroles/system:controller:pod-garbage-collector
/registry/clusterroles/system:controller:pv-protection-controller
/registry/clusterroles/system:controller:pvc-protection-controller
/registry/clusterroles/system:controller:replicaset-controller
/registry/clusterroles/system:controller:replication-controller
/registry/clusterroles/system:controller:resourcequota-controller
/registry/clusterroles/system:controller:route-controller
/registry/clusterroles/system:controller:service-account-controller
/registry/clusterroles/system:controller:service-controller
/registry/clusterroles/system:controller:statefulset-controller
/registry/clusterroles/system:controller:ttl-controller
/registry/clusterroles/system:coredns
/registry/clusterroles/system:csi-external-attacher
/registry/clusterroles/system:csi-external-provisioner
/registry/clusterroles/system:discovery
/registry/clusterroles/system:heapster
/registry/clusterroles/system:kube-aggregator
/registry/clusterroles/system:kube-controller-manager
/registry/clusterroles/system:kube-dns
/registry/clusterroles/system:kube-scheduler
/registry/clusterroles/system:kubelet-api-admin
/registry/clusterroles/system:node
/registry/clusterroles/system:node-bootstrapper
/registry/clusterroles/system:node-problem-detector
/registry/clusterroles/system:node-proxier
/registry/clusterroles/system:persistent-volume-provisioner
/registry/clusterroles/system:public-info-viewer
/registry/clusterroles/system:volume-scheduler
/registry/clusterroles/view
/registry/configmaps/default/gateway-kong-default-custom-server-blocks
/registry/configmaps/default/kong-ingress-controller-leader-kong-kong
/registry/configmaps/kube-public/cluster-info
/registry/configmaps/kube-system/coredns
/registry/configmaps/kube-system/extension-apiserver-authentication
/registry/configmaps/kube-system/kube-flannel-cfg
/registry/configmaps/kube-system/kube-proxy
/registry/configmaps/kube-system/kubeadm-config
/registry/configmaps/kube-system/kubelet-config-1.16
/registry/controllerrevisions/kube-system/kube-flannel-ds-amd64-67f65bfbc7
/registry/controllerrevisions/kube-system/kube-flannel-ds-arm-74f7486b59
/registry/controllerrevisions/kube-system/kube-flannel-ds-arm64-575fdc5885
/registry/controllerrevisions/kube-system/kube-flannel-ds-ppc64le-84596b9cb9
/registry/controllerrevisions/kube-system/kube-flannel-ds-s390x-7f96755bd4
/registry/controllerrevisions/kube-system/kube-proxy-74fb9dc88
/registry/daemonsets/kube-system/kube-flannel-ds-amd64
/registry/daemonsets/kube-system/kube-flannel-ds-arm
/registry/daemonsets/kube-system/kube-flannel-ds-arm64
/registry/daemonsets/kube-system/kube-flannel-ds-ppc64le
/registry/daemonsets/kube-system/kube-flannel-ds-s390x
/registry/daemonsets/kube-system/kube-proxy
/registry/deployments/default/gateway-kong
/registry/deployments/kube-system/coredns
/registry/leases/kube-node-lease/k8s-master
/registry/leases/kube-node-lease/k8s-node1
/registry/leases/kube-node-lease/k8s-node2
/registry/masterleases/192.168.1.55
/registry/minions/k8s-master
/registry/minions/k8s-node1
/registry/minions/k8s-node2
/registry/namespaces/default
/registry/namespaces/kube-node-lease
/registry/namespaces/kube-public
/registry/namespaces/kube-system
/registry/pods/default/gateway-kong-67fb7768ff-2zlxq
/registry/pods/default/gateway-kong-67fb7768ff-sgfzk
/registry/pods/kube-system/coredns-58cc8c89f4-88nbr
/registry/pods/kube-system/coredns-58cc8c89f4-h4glp
/registry/pods/kube-system/etcd-k8s-master
/registry/pods/kube-system/kube-apiserver-k8s-master
/registry/pods/kube-system/kube-controller-manager-k8s-master
/registry/pods/kube-system/kube-flannel-ds-amd64-5dkkn
/registry/pods/kube-system/kube-flannel-ds-amd64-5prwj
/registry/pods/kube-system/kube-flannel-ds-amd64-xrpft
/registry/pods/kube-system/kube-proxy-7966v
/registry/pods/kube-system/kube-proxy-9tvwr
/registry/pods/kube-system/kube-proxy-tmbpd
/registry/pods/kube-system/kube-scheduler-k8s-master
/registry/podsecuritypolicy/psp.flannel.unprivileged
/registry/priorityclasses/system-cluster-critical
/registry/priorityclasses/system-node-critical
/registry/ranges/serviceips
/registry/ranges/servicenodeports
/registry/replicasets/default/gateway-kong-67fb7768ff
/registry/replicasets/kube-system/coredns-58cc8c89f4
/registry/rolebindings/default/gateway-kong
/registry/rolebindings/kube-public/kubeadm:bootstrap-signer-clusterinfo
/registry/rolebindings/kube-public/system:controller:bootstrap-signer
/registry/rolebindings/kube-system/kube-proxy
/registry/rolebindings/kube-system/kubeadm:kubelet-config-1.16
/registry/rolebindings/kube-system/kubeadm:nodes-kubeadm-config
/registry/rolebindings/kube-system/system::extension-apiserver-authentication-reader
/registry/rolebindings/kube-system/system::leader-locking-kube-controller-manager
/registry/rolebindings/kube-system/system::leader-locking-kube-scheduler
/registry/rolebindings/kube-system/system:controller:bootstrap-signer
/registry/rolebindings/kube-system/system:controller:cloud-provider
/registry/rolebindings/kube-system/system:controller:token-cleaner
/registry/roles/default/gateway-kong
/registry/roles/kube-public/kubeadm:bootstrap-signer-clusterinfo
/registry/roles/kube-public/system:controller:bootstrap-signer
/registry/roles/kube-system/extension-apiserver-authentication-reader
/registry/roles/kube-system/kube-proxy
/registry/roles/kube-system/kubeadm:kubelet-config-1.16
/registry/roles/kube-system/kubeadm:nodes-kubeadm-config
/registry/roles/kube-system/system::leader-locking-kube-controller-manager
/registry/roles/kube-system/system::leader-locking-kube-scheduler
/registry/roles/kube-system/system:controller:bootstrap-signer
/registry/roles/kube-system/system:controller:cloud-provider
/registry/roles/kube-system/system:controller:token-cleaner
/registry/secrets/default/default-token-wtqgl
/registry/secrets/default/gateway-kong-token-z5wv8
/registry/secrets/default/sh.helm.release.v1.gateway.v1
/registry/secrets/kube-node-lease/default-token-rxvqw
/registry/secrets/kube-public/default-token-mb8jm
/registry/secrets/kube-system/attachdetach-controller-token-96r5d
/registry/secrets/kube-system/bootstrap-signer-token-6vn9q
/registry/secrets/kube-system/certificate-controller-token-hc688
/registry/secrets/kube-system/clusterrole-aggregation-controller-token-bkj96
/registry/secrets/kube-system/coredns-token-q4gdw
/registry/secrets/kube-system/cronjob-controller-token-6d769
/registry/secrets/kube-system/daemon-set-controller-token-jsd2x
/registry/secrets/kube-system/default-token-tqqtk
/registry/secrets/kube-system/deployment-controller-token-2zdf4
/registry/secrets/kube-system/disruption-controller-token-6pn4c
/registry/secrets/kube-system/endpoint-controller-token-tvjc2
/registry/secrets/kube-system/expand-controller-token-96dkj
/registry/secrets/kube-system/flannel-token-g5rbh
/registry/secrets/kube-system/generic-garbage-collector-token-nbj8m
/registry/secrets/kube-system/horizontal-pod-autoscaler-token-l5h66
/registry/secrets/kube-system/job-controller-token-rf2hc
/registry/secrets/kube-system/kube-proxy-token-mqzr4
/registry/secrets/kube-system/namespace-controller-token-bxw9m
/registry/secrets/kube-system/node-controller-token-9ls5w
/registry/secrets/kube-system/persistent-volume-binder-token-wxxk7
/registry/secrets/kube-system/pod-garbage-collector-token-9lcb7
/registry/secrets/kube-system/pv-protection-controller-token-wpzf6
/registry/secrets/kube-system/pvc-protection-controller-token-986dk
/registry/secrets/kube-system/replicaset-controller-token-w9p6t
/registry/secrets/kube-system/replication-controller-token-t5sq9
/registry/secrets/kube-system/resourcequota-controller-token-lbwht
/registry/secrets/kube-system/service-account-controller-token-fsvb9
/registry/secrets/kube-system/service-controller-token-vw9zl
/registry/secrets/kube-system/statefulset-controller-token-lkj86
/registry/secrets/kube-system/token-cleaner-token-rpjrc
/registry/secrets/kube-system/ttl-controller-token-sfnqj
/registry/serviceaccounts/default/default
/registry/serviceaccounts/default/gateway-kong
/registry/serviceaccounts/kube-node-lease/default
/registry/serviceaccounts/kube-public/default
/registry/serviceaccounts/kube-system/attachdetach-controller
/registry/serviceaccounts/kube-system/bootstrap-signer
/registry/serviceaccounts/kube-system/certificate-controller
/registry/serviceaccounts/kube-system/clusterrole-aggregation-controller
/registry/serviceaccounts/kube-system/coredns
/registry/serviceaccounts/kube-system/cronjob-controller
/registry/serviceaccounts/kube-system/daemon-set-controller
/registry/serviceaccounts/kube-system/default
/registry/serviceaccounts/kube-system/deployment-controller
/registry/serviceaccounts/kube-system/disruption-controller
/registry/serviceaccounts/kube-system/endpoint-controller
/registry/serviceaccounts/kube-system/expand-controller
/registry/serviceaccounts/kube-system/flannel
/registry/serviceaccounts/kube-system/generic-garbage-collector
/registry/serviceaccounts/kube-system/horizontal-pod-autoscaler
/registry/serviceaccounts/kube-system/job-controller
/registry/serviceaccounts/kube-system/kube-proxy
/registry/serviceaccounts/kube-system/namespace-controller
/registry/serviceaccounts/kube-system/node-controller
/registry/serviceaccounts/kube-system/persistent-volume-binder
/registry/serviceaccounts/kube-system/pod-garbage-collector
/registry/serviceaccounts/kube-system/pv-protection-controller
/registry/serviceaccounts/kube-system/pvc-protection-controller
/registry/serviceaccounts/kube-system/replicaset-controller
/registry/serviceaccounts/kube-system/replication-controller
/registry/serviceaccounts/kube-system/resourcequota-controller
/registry/serviceaccounts/kube-system/service-account-controller
/registry/serviceaccounts/kube-system/service-controller
/registry/serviceaccounts/kube-system/statefulset-controller
/registry/serviceaccounts/kube-system/token-cleaner
/registry/serviceaccounts/kube-system/ttl-controller
/registry/services/endpoints/default/gateway-kong-admin
/registry/services/endpoints/default/gateway-kong-proxy
/registry/services/endpoints/default/kubernetes
/registry/services/endpoints/kube-system/kube-controller-manager
/registry/services/endpoints/kube-system/kube-dns
/registry/services/endpoints/kube-system/kube-scheduler
/registry/services/specs/default/gateway-kong-admin
/registry/services/specs/default/gateway-kong-proxy
/registry/services/specs/default/kubernetes
/registry/services/specs/kube-system/kube-dns

查询某个key的值，–keys-only=false表示要给出value，该参数默认值即为false，所以该参数可以不出现，-w=json表示输出json格式。

etcdctl get /registry/namespaces/default --prefix --keys-only=false -w=json | python -m json.tool
{
"count": 1,
"header": {
"cluster_id": 13595082567554063233,
"member_id": 13154517069409364498,
"raft_term": 9,
"revision": 3097040
},
"kvs": [
{
"create_revision": 147,
"key": "L3JlZ2lzdHJ5L25hbWVzcGFjZXMvZGVmYXVsdA==",
"mod_revision": 147,
"value": "azhzAAoPCgJ2MRIJTmFtZXNwYWNlEl8KRQoHZGVmYXVsdBIAGgAiACokMDY4MWEzM2MtOGM2OC00YjZhLTg5ZmUtZTM3MjI0MzM0NWE3MgA4AEIICLnY0+8FEAB6ABIMCgprdWJlcm5ldGVzGggKBkFjdGl2ZRoAIgA=",
"version": 1
}
]
}

以上的key和values都以base64编码了，如果想查看key的值可以执行如下命令。有些value的值包含二进制，不易解开。

echo "L3JlZ2lzdHJ5L25hbWVzcGFjZXMvZGVmYXVsdA==" | base64 -d
/registry/namespaces/default

键/registry/apiregistration.k8s.io/apiservices/v1.apiextensions.k8s.io的值不包含二进制，可以直接查询。

etcdctl get /registry/apiregistration.k8s.io/apiservices/v1.apiextensions.k8s.io --prefix | grep '"kind":"APIService"' | python -m json.tool
{
"apiVersion": "apiregistration.k8s.io/v1beta1",
"kind": "APIService",
"metadata": {
"creationTimestamp": "2019-12-14T14:05:42Z",
"labels": {
"kube-aggregator.kubernetes.io/automanaged": "onstart"
},
"name": "v1.apiextensions.k8s.io",
"uid": "ac8721f3-81ed-465c-b789-0132ca6e65ae"
},
"spec": {
"group": "apiextensions.k8s.io",
"groupPriorityMinimum": 16700,
"service": null,
"version": "v1",
"versionPriority": 15
},
"status": {
"conditions": [
{
"lastTransitionTime": "2019-12-14T14:05:42Z",
"message": "Local APIServices are always available",
"reason": "Local",
"status": "True",
"type": "Available"
}
]
}
}

或者

etcdctl get /registry/apiregistration.k8s.io/apiservices/v1.apiextensions.k8s.io --prefix --keys-only=false -w=json | python -m json.tool
{
"count": 1,
"header": {
"cluster_id": 13595082567554063233,
"member_id": 13154517069409364498,
"raft_term": 9,
"revision": 3172982
},
"kvs": [
{
"create_revision": 4,
"key": "L3JlZ2lzdHJ5L2FwaXJlZ2lzdHJhdGlvbi5rOHMuaW8vYXBpc2VydmljZXMvdjEuYXBpZXh0ZW5zaW9ucy5rOHMuaW8=",
"mod_revision": 4,
"value": "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",
"version": 1
}
]
}
echo "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" | base64 -d | python -m json.tool
{
"apiVersion": "apiregistration.k8s.io/v1beta1",
"kind": "APIService",
"metadata": {
"creationTimestamp": "2019-12-14T14:05:42Z",
"labels": {
"kube-aggregator.kubernetes.io/automanaged": "onstart"
},
"name": "v1.apiextensions.k8s.io",
"uid": "ac8721f3-81ed-465c-b789-0132ca6e65ae"
},
"spec": {
"group": "apiextensions.k8s.io",
"groupPriorityMinimum": 16700,
"service": null,
"version": "v1",
"versionPriority": 15
},
"status": {
"conditions": [
{
"lastTransitionTime": "2019-12-14T14:05:42Z",
"message": "Local APIServices are always available",
"reason": "Local",
"status": "True",
"type": "Available"
}
]
}
}

以下是etcd中存储的kubernetes所有的元数据类型：

ThirdPartyResourceData
apiextensions.k8s.io
apiregistration.k8s.io
certificatesigningrequests
clusterrolebindings
clusterroles
configmaps
controllerrevisions
controllers
daemonsets
deployments
events
horizontalpodautoscalers
ingress
limitranges
minions
monitoring.coreos.com
namespaces
persistentvolumeclaims
persistentvolumes
poddisruptionbudgets
pods
ranges
replicasets
resourcequotas
rolebindings
roles
secrets
serviceaccounts
services
statefulsets
storageclasses
thirdpartyresources

最后

以上就是眯眯眼魔镜为你收集整理的通过etcdctl查询Kubernetes中etcd数据的全部内容，希望文章能够帮你解决通过etcdctl查询Kubernetes中etcd数据所遇到的程序开发问题。

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