Pods get DNS/hostnames that follow the pattern: pod-specific-string.serviceName.default.svc.cluster.local where "pod-specific-string" is managed by the StatefulSet controller. replicas Status of the condition, one of True, False, Unknown. When specified for list: - if unset, then the result is returned from remote storage based on quorum-read flag; - if it's 0, then we simply return what we currently have in cache, no guarantee; - if set to non zero, then the result is at least as fresh as given rv. Additionally, cluster VMs will need “disk.enableUUID” and VM hardware version 15 or higher. A claim in this list takes precedence over any volumes in the template, with the same name. podManagementPolicy controls how pods are created during initial scale up, when replacing pods on nodes, or when scaling down. Servers may choose not to support the limit argument and will return all of the available results. Like a Deployment, a StatefulSet manages … RollingUpdateStatefulSetStrategy is used to communicate parameter for RollingUpdateStatefulSetStrategyType. #!/usr/bin/python import openshift as oc print ('OpenShift client version: {}'. Force is going to "force" Apply requests. Recently, I stumbled upon a StackOverflow question around StatefulSets which made me wonder how well understood they are at … Should this value be exported. Timeout for the list/watch call. However, for a stateful app you might want to use a StatefulSet.Unlike a deployment, the StatefulSet provides certain guarantees about the identity of the pods it is managing (that is, … These are replicas in the sense that they are instantiations of the same Template, but individual replicas also have a consistent identity. Manages the deployment and scaling of a set of Pods, and provides guarantees about the ordering and uniqueness of these Pods. If objects are updated during a chunked list the version of the object that was present at the time the first list result was calculated is returned. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. StatefulSet represents a set of pods with consistent identities. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors. volumeClaimTemplates is a list of claims that pods are allowed to reference. Since this value is server defined, clients may only use the continue value from a previous query result with identical query parameters (except for the value of continue) and the server may reject a continue value it does not recognize. template is the object that describes the pod that will be created if insufficient replicas are detected. If more items exist, the server will set the `continue` field on the list metadata to a value that can be used with the same initial query to retrieve the next set of results. format (oc. See how Kubernetes API objects can be used to describe how a solution will be deployed in Kubernetes This field is not supported when watch is true. TLS サポート 第2章 イイ フラストラクチチ ーコンポ ネンン 2.1. Servers may infer this from the endpoint the client submits requests to. OpenShift Container Platform は、Docker Hub、サードパーティーによって実行されるプライベートレジストリーおよび統合 OpenShift Container Platform レジストリーを含む、イメージのソースとして Docker レジストリー API を実装するすべての The default value is 10. selector is a label query over pods that should match the replica count. Should this value be exported. It means user will re-acquire conflicting fields owned by other people. allowWatchBookmarks requests watch events with type "BOOKMARK". If the specified continue value is no longer valid whether due to expiration (generally five to fifteen minutes) or a configuration change on the server, the server will respond with a 410 ResourceExpired error together with a continue token. The reason for the condition’s last transition. ImageStream objects abstract images and enrich them to streams that emit signals when they see that a new image is uploaded into them by e.g. A human readable message indicating details about the transition. Timeout for the list/watch call. If this value is nil, the default grace period for the specified type will be used. The alternative policy is Parallel which will create pods in parallel to match the desired scale without waiting, and on scale down will delete all pods at once. The alternative policy is Parallel which will create pods in parallel to match the desired scale without waiting, and on scale down will delete all pods at once. It corresponds to the StatefulSet’s generation, which is updated on mutation by the API Server. StatefulSet represents a set of pods with consistent identities. RollingUpdateStatefulSetStrategy is used to communicate parameter for RollingUpdateStatefulSetStrategyType. OPENSHIFT CONTAINER PLATFORM のセキュリティーを保護する方法 1.3.1. A human readable message indicating details about the transition. It corresponds to the StatefulSet’s generation, which is updated on mutation by the API Server. If limit is specified and the continue field is empty, clients may assume that no more results are available. readyReplicas integer readyReplicas is the number of Pods created by the StatefulSet controller that have a Ready Condition. zero means delete immediately. Default is RollingUpdate. If 'true', then the output is pretty printed. Defaults to everything. Identities are defined as: Network: A single stable DNS and hostname. timeout (10 * 60): # Print the list of qualified pod names (e.g. serviceName is the name of the service that governs this StatefulSet. Value must be non-negative integer. The continue option should be set when retrieving more results from the server. limit is a maximum number of responses to return for a list call. Type indicates the type of the StatefulSetUpdateStrategy. The default policy is OrderedReady, where pods are created in increasing order (pod-0, then pod-1, etc) and the controller will wait until each pod is ready before continuing. readyReplicas is the number of Pods created by the StatefulSet controller that have a Ready Condition. This service must exist before the StatefulSet, and is responsible for the network identity of the set. currentRevision, if not empty, indicates the version of the StatefulSet used to generate Pods in the sequence [0,currentReplicas). Deprecated. StatefulSetStatus represents the current state of a StatefulSet. The reason for the condition’s last transition. The duration in seconds before the object should be deleted. Should the dependent objects be orphaned. 어떻게 스테이트풀셋의 파드를 생성하고, 삭제하며, 스케일링하고, 업데이트하는지 시연한다. 09/2018: How to backup and restore MySQL on Red Hat OpenShift 05/2018: Recovering a StatefulSet from AWS EBS Snapshots Videos and Slide Decks Day 2 with Stateful Applications - Implementing a Data Protection Strategy In CamelCase. These are replicas in the sense that they are instantiations of the same Template, but individual replicas also have a consistent identity. The server guarantees that the objects returned when using continue will be identical to issuing a single list call without a limit - that is, no objects created, modified, or deleted after the first request is issued will be included in any subsequent continued requests. Pods get DNS/hostnames that follow the pattern: pod-specific-string.serviceName.default.svc.cluster.local where "pod-specific-string" is managed by the StatefulSet controller. When specified with a watch call, shows changes that occur after that particular version of a resource. replicas is the desired number of replicas of the given Template. Red HatでOpenShiftのサポートをしているid:nekopです。OpenShift 全部俺 Advent Calendar 2018 - Qiitaの11日目のエントリです。有給休暇をとって舞台など見に行っていました。 OpenShiftのログ基盤にはEFKスタック More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds. A Kafka broker and project ('openshift-infra'), oc. Export strips fields that a user can not specify. Setting a limit may return fewer than the requested amount of items (up to zero items) in the event all requested objects are filtered out and clients should only use the presence of the continue field to determine whether more results are available. Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Watch for changes to the described resources and return them as a stream of add, update, and remove notifications. Podのstatus項目はPodStatusオブジェクトで、それはphaseのフィールドがあります。 Podのフェーズは、そのPodがライフサイクルのどの状態にあるかを、簡単かつ高レベルにまとめたものです。このフェーズはコンテナやPodの状態を包括的にまとめることを目的としたものではなく、また包括的なステートマシンでもありません。 Podの各フェーズの値と意味は厳重に守られています。ここに記載されているもの以外にphaseの値は存在しないと思ってください。 これらがphaseの取りうる値です。 StatefulSetUpdateStrategy indicates the strategy that the StatefulSet controller will use to perform updates. Represents the latest available observations of a statefulset’s current state. That follow the pattern: pod-specific-string.serviceName.default.svc.cluster.local where `` pod-specific-string '' is managed by the controller... Name openshift statefulset api the request servicename is the count of hash collisions for the newest.! 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