kubernetes - 无法在 kubernetes 类型中安装 CRD

Question

我正在设置一个 kind簇

Creating cluster "kind" ...
 ✓ Ensuring node image (kindest/node:v1.22.1) 🖼 
 ✓ Preparing nodes 📦 📦  
 ✓ Writing configuration 📜 
 ✓ Starting control-plane 🕹️ 
 ✓ Installing CNI 🔌 
 ✓ Installing StorageClass 💾 
 ✓ Joining worker nodes 🚜 
 ✓ Waiting ≤ 5m0s for control-plane = Ready ⏳ 
 • Ready after 0s 💚

然后尝试按照 instructions 安装 ECK 运算符关于 1.6 版

kubectl apply -f https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml

但是进程失败了，好像 kind不支持 CRD...是这种情况吗？

namespace/elastic-system created
serviceaccount/elastic-operator created
secret/elastic-webhook-server-cert created
configmap/elastic-operator created
clusterrole.rbac.authorization.k8s.io/elastic-operator created
clusterrole.rbac.authorization.k8s.io/elastic-operator-view created
clusterrole.rbac.authorization.k8s.io/elastic-operator-edit created
clusterrolebinding.rbac.authorization.k8s.io/elastic-operator created
service/elastic-webhook-server created
statefulset.apps/elastic-operator created
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "CustomResourceDefinition" in version "apiextensions.k8s.io/v1beta1"
unable to recognize "https://download.elastic.co/downloads/eck/1.6.0/all-in-one.yaml": no matches for kind "ValidatingWebhookConfiguration" in version "admissionregistration.k8s.io/v1beta1"

Answer 1

您在此处看到的问题与种类无关，而是您尝试应用的 list 使用的是过时的 API 版本，这些版本已在 Kubernetes 1.22 中删除
具体来说， list 使用的是 v1beta1 版本的 customresourcedefinition 对象和 validatingadmissionwebhook 对象

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition

如 this post 中所述那是 1.22 进入时删除的版本之一。
对此有一些修复。首先，您可以获取 list 并更改自定义资源定义以使用新的 API 版本 apiextensions.k8s.io/v1并验证admissionwebhook 使用 admissionregistration.k8s.io/v1 .
另一个修复方法是使用旧版本的 Kubernetes。如果您使用 1.21 或更早版本，则不应发生该问题，因此类似于 kind create cluster --image=kindest/node:v1.21.2应该管用。