Open an issue in the GitHub repo if you want to report a problem or suggest an improvement. Edit This Page v1. The main themes of this release are: Custom resources: CRDs are in widespread use as a way to extend Kubernetes to persist and serve new resource types, and have been available in beta since the 1. The 1. Admission webhooks: Admission webhooks are in widespread use as a Kubernetes extensibility mechanism and have been available in beta since the 1. Overhauled metrics : Kubernetes has previously made extensive use of a global metrics registry to register metrics to be exposed.
By implementing a metrics registry, metrics are registered in more transparent means. Previously, Kubernetes metrics have been excluded from any kind of stability requirements. Volume Extension : There are quite a few enhancements in this release that pertain to volumes and volume modifications. Additional Notable Feature Updates Topology Manager , a new Kubelet component, aims to co-ordinate resource assignment decisions to provide optimized resource allocations.
Extensions for Cloud Controller Manager Migration. Known Issues The etcd and KMS plugin health checks are not exposed in the new livez and readyz endpoints. This will be fixed in 1. Systems running iptables 1. Please note that this affects all versions of Kubernetes and not only v1. For more detailed information about the issue and how to apply a workaround, please refer to the official documentation Urgent Upgrade Notes No, really, you MUST read this before you upgrade Cluster Lifecycle Container images tar files for amd64 will now contain the architecture in the RepoTags manifest.
If you are using docker manifests there are not visible changes. Migrate use to the networking. Existing persisted data can be retrieved via the networking. PriorityClass resources will no longer be served from scheduling. Migrate to the scheduling. Existing persisted data can be retrieved via the scheduling. The export query parameter for list API calls, deprecated since v1.
The series. Use apiextensions. Use admissionregistration. Use the DiskPressure condition instead. It will no longer be returned starting in v1. Aggregated API servers must complete discovery calls within 5 seconds other requests can take longer. Pod priority spec. Use ScorePlugin only. It is not recommended for production environments. The previous default was Cluster admins must specify their own desired value, by using --service-cluster-ip-range on kube-apiserver. If you previously specified a non-empty --resource-container , you can no longer do so as of kubernetes 1.
The proxy plugin has been deprecated.
The forward plugin is to be used instead. The upstream option is deprecated and ignored if included. The --export flag for the kubectl get command, deprecated since v1. WithVersionEncoder and DirectDecoder replaced with runtime. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. Defaults may be specified in structural schemas via the apiextensions. This feature ensures the Service resource is not fully deleted until the correlating load balancer resources are deleted.
Initially, RuntimeClass will be used to apply the pod overhead associated with a given RuntimeClass to the Pod spec if a corresponding RuntimeClassName is specified. PodOverhead is an alpha feature as of Kubernetes 1. This functionality is alpha-level as of Kubernetes v1. These temporary containers can be added to running pods for purposes such as debugging, similar to how kubectl exec runs a process in an existing container. Also like kubectl exec , no resources are reserved for ephemeral containers and they are not restarted when they exit.
Note that container namespace targeting is not yet implemented, so process namespace sharing must be enabled to view process from other containers in the pod. This delay can be used to allow the SDN to update iptables on all nodes and stop sending traffic. Using the parameter --maximum-startup-sequence-duration will allow the liveness endpoint to defer boot-sequence failures for the specified duration period.
Additionally, for each worker node, the user should set the feature-gate for kubelet using either nodeRegistration. Cloud allocators are not compatible with IPv6 dual stack , khenidak Add scheduling support for RuntimeClasses. Webhooks can specify a preference for receiving v1 AdmissionReview objects with admissionReviewVersions: ["v1","v1beta1"] , and must respond with an API object in the same apiVersion they are sent. When webhooks use admission.
CustomResourceDefinition conversion webhooks can now indicate they support receiving and responding with ConversionReview API objects in the apiextensions. Conversion webhooks must respond with a ConversionReview object in the same apiVersion they receive. For a new field with a non-nil default value in the container spec, the hash would still get changed.
CustomResourceDefinitionStatus and apiextensions. CustomResourceDefinitionStatus is now optional instead of required. RawExtension , which previously required a field raw to be specified , jennybuckley Property conditions in apiextensions. Number of allocations and subnets must match. The chain is ensured for both IPv4 and IPv6 in dual-stack operation. Kubelet now will try to update lease using cached one instead of get from API Server every time. Args is not passed to the corresponding PluginFactory in kube-scheduler when multiple PluginConfig items are defined.
String value should be a comma-separated list. ExpectNoError no longer logs the error and instead relies on using the new log. Fail as gomega fail handler. The current list is 1.
For example, a webhook configured to speak to port on service mysvc in namespace myns would specify client credentials in a stanza with name: mysvc. The chain is ensured for both ipv4 and ipv6 in dual-stack operation. Aggregated apiserver must complete discovery calls within five seconds. Other requests can take longer. Make kubectl get —ignore-not-found continue processing when encountering error.
Dualstack iptables proxier is WIP and should catchup soon. The cloud provider will return an error if the service is internal and is IPv6. The flag is validated and used as the following: 1. A cluster can be dualstack i. Pods and nodes carry dualstack IPs but does not need to support ingress on dualstack. In this case the cluster can perform egress using PodIPs according to family and binding selection in user code but will ingress will only be performed against the pod primary IP. This can be configured by supplying single entry to --service-cluster-ip-range flag.
Maximum of two entries is allowed in --service-cluster-ip-range and they are validated to be dual stacked i. The flag is validated as above. IPFamily has been added. The default of this field is family of first service cidr in —service-cluster-ip-range flag. Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads.
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For mutation, heat encouraged by talking model or from a southern clear News can shrink developed to buy year, envisioning seen surf, which features over a enterprise. Migrate use to the networking. The Moscow News, July 17, Cinder and ScaleIO volume providers have been deprecated and will be removed in a future release. Introduce a new admission controller for RuntimeClass.
Thank you. Charles Lee , Software deputy manager. Nagababu Viswanadhapalli , Studied B. Tech cse in AcharyaNagarjunaUniversity at studying B. Tech cse in AcharyaNagarjunaUniversity. Show More. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. What Does This Talk Cover? Who am I? Android, Ubuntu. Context Session Command Shared Memory Trusted Application APIs required to Allows multiple virtual OSs. Each VM isolated from others.