Kubernetes 1.12.0 RC1 修复 kubectl 命令无效的 bug

Kubernetes 1.12.0 RC1 发布了，Kubernetes   是一个开源的、用于管理云平台中多个主机上的容器化的应用，Kubernetes 的目标是让部署容器化的应用简单并且高效，Kubernetes 提供了应用部署、规划、更新与维护的一种机制。

此次更新内容如下：

• Update metrics-server to v0.3.1 ( #68746 ,  @DirectXMan12 )

• Upgrade kubeadm's version of docker support ( #68495 ,  @yuansisi )

• fix a bug that overwhelming number of prometheus metrics are generated because $NAMESPACE is not replaced by string "{namespace}" ( #68530 ,  @wenjiaswe )

• The feature gates ReadOnlyAPIDataVolumes and  ServiceProxyAllowExternalIPs , deprecated since 1.10, have been removed and any references must be removed from command-line invocations. ( #67951 ,  @liggitt )

• Verify invalid secret/configmap/projected volumes before calling setup ( #68691 ,  @gnufied )

• Fix bug that caused kubectl commands to sometimes fail to refresh access token when running against GKE clusters. ( #66314 ,  @jlowdermilk )

• Use KubeDNS by default in GCE setups, as CoreDNS has significantly higher memory usage in large clusters. ( #68629 ,  @shyamjvs )

• Fix PodAntiAffinity issues in case of multiple affinityTerms. ( #68173 ,  @Huang-Wei )

• Make APIGroup field in TypedLocalObjectReference optional. ( #68419 ,  @xing-yang )

• Fix potential panic when getting azure load balancer status ( #68609 ,  @feiskyer )

• Fix kubelet panics when RuntimeClass is enabled. ( #68521 ,  @yujuhong )

• cAdvisor: Fix NVML initialization race condition ( #68431 ,  @dashpole )

• cAdvisor: Fix brtfs filesystem discovery

• cAdvisor: Fix race condition with AllDockerContainers

• cAdvisor: Don't watch .mount cgroups

• cAdvisor: Reduce lock contention during list containers

• cAdvisor: Fix NVML initialization race condition ( #68431 ,  @dashpole )

• Promote ScheduleDaemonSetPods by default scheduler to beta ( #67899 ,  @ravisantoshgudimetla )

详情查看 更新日志 。