openshift statefulset api

Cannot be updated. 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. Either this field or OrphanDependents may be set, but not both. 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. StatefulSet represents a set of pods with consistent identities. A human readable message indicating details about the transition. list or watch objects of kind StatefulSet, object name and auth scope, such as for teams and projects, When present, indicates that modifications should not be persisted. Specify resourceVersion. Default value is 0. collisionCount is the count of hash collisions for the StatefulSet. Should the dependent objects be orphaned. Should the dependent objects be orphaned. It includes any additional parameters necessary to perform the update for the indicated strategy. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors. Valid values are: - All: all dry run stages will be processed. Servers may choose not to support the limit argument and will return all of the available results. If 'true', then the output is pretty printed. Each pod stamped out by the StatefulSet will fulfill this Template, but have a unique identity from the rest of the StatefulSet. Defaults to everything. The default value is 10. selector is a label query over pods that should match the replica count. Each pod stamped out by the StatefulSet will fulfill this Template, but have a unique identity from the rest of the StatefulSet. StatefulSetCondition describes the state of a statefulset at a certain point. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. It must match the pod template’s labels. In CamelCase. get_server_version ())) # Set a project context for all inner `oc` invocations and limit execution to 10 minutes with oc. replicas is the number of Pods created by the StatefulSet controller. Default is RollingUpdate. Storage: As many VolumeClaims as requested. OPENSHIFT CONTAINER PLATFORM アーキテクチャーについて 1.3. readyReplicas integer readyReplicas is the number of Pods created by the StatefulSet controller that have a Ready Condition. Timeout for the list/watch call. replicas More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds. Force flag must be unset for non-apply patch 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. If unspecified, defaults to 1. revisionHistoryLimit is the maximum number of revisions that will be maintained in the StatefulSet’s revision history. StatefulSet represents a set of pods with consistent identities. When scaling down, the pods are removed in the opposite order. Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. It corresponds to the StatefulSet’s generation, which is updated on mutation by the API Server. partially update the specified StatefulSet, partially update scale of the specified StatefulSet, replace scale of the specified StatefulSet, partially update status of the specified StatefulSet, replace status of the specified StatefulSet, Promoting Applications Across Environments, MutatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], LocalSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectRulesReview [authorization.k8s.io/v1], SubjectAccessReview [authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], LocalResourceAccessReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.openshift.io/v1], ResourceAccessReview [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], SelfSubjectRulesReview [authorization.openshift.io/v1], SubjectAccessReview [authorization.openshift.io/v1], SubjectRulesReview [authorization.openshift.io/v1], CertificateSigningRequest [certificates.k8s.io/v1beta1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], EgressNetworkPolicy [network.openshift.io/v1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], PriorityClass [scheduling.k8s.io/v1beta1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], VolumeAttachment [storage.k8s.io/v1beta1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping [user.openshift.io/v1], https://git.k8s.io/community/contributors/devel/api-conventions.md#resources, https://git.k8s.io/community/contributors/devel/api-conventions.md#types-kinds, https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors. Recently, I stumbled upon a StackOverflow question around StatefulSets which made me wonder how well understood they are at … The duration in seconds before the object should be deleted. 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. Planned for removal in 1.18. partially update the specified StatefulSet. Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. 시작하기 전에 튜토리얼을 시작하기 전에 다음의 쿠버네티스 컨셉에 대해 익숙해야 한다. Should the export be exact. APIVersion defines the versioned schema of this representation of an object. If limit is specified and the continue field is empty, clients may assume that no more results are available. 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. ReplicaSetは、ReplicaSetが対象とするPodをどう特定するかを示すためのセレクターや、稼働させたいPodのレプリカ数、Podテンプレート(理想のレプリカ数の条件を満たすために作成される新しいPodのデータを指定するために用意されるもの)といったフィールドとともに定義されます。ReplicaSetは、指定された理想のレプリカ数にするためにPodの作成と削除を行うことにより、その目的を達成します。ReplicaSetが新しいPodを作成するとき、ReplicaSetはそのPodテンプレートを使用します。 ReplicaSe… RollingUpdateStatefulSetStrategy is used to communicate parameter for RollingUpdateStatefulSetStrategyType. When scaling down, the pods are removed in the opposite order. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources, Kind is a string value representing the REST resource this object represents. A selector to restrict the list of returned objects by their fields. Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. updatedReplicas is the number of Pods created by the StatefulSet controller from the StatefulSet version indicated by updateRevision. StatefulSetCondition describes the state of a statefulset at a certain point. Identities are defined as: Network: A single stable DNS and hostname. This field is required for apply requests (application/apply-patch) but optional for non-apply patch types (JsonPatch, MergePatch, StrategicMergePatch). RollingUpdateStatefulSetStrategy is used to communicate parameter for RollingUpdateStatefulSetStrategyType. updateRevision, if not empty, indicates the version of the StatefulSet used to generate Pods in the sequence [replicas-updatedReplicas,replicas). The continue option should be set when retrieving more results from the server. See the release notes for more information. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. The default policy is decided by the existing finalizer set in the metadata.finalizers and the resource-specific default policy. volumeClaimTemplates is a list of claims that pods are allowed to reference. StatefulSets are designed to deploy stateful applications and clustered applications that save data to persistent storage, such as Compute Engine persistent disks. zero means delete immediately. These are replicas in the sense that they are instantiations of the same Template, but individual replicas also have a consistent identity. 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. Specify resourceVersion. The StatefulSet guarantees that a given network identity will always map to the same storage identity. 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, … replicas is the number of Pods created by the StatefulSet controller. podManagementPolicy controls how pods are created during initial scale up, when replacing pods on nodes, or when scaling down. This service must exist before the StatefulSet, and is responsible for the network identity of the set. Export strips fields that a user can not specify. The following API endpoints are available: GET: list or watch objects of kind StatefulSet, /apis/apps/v1/namespaces/{namespace}/statefulsets, /apis/apps/v1/namespaces/{namespace}/statefulsets/{name}, PATCH: partially update the specified StatefulSet, /apis/apps/v1/namespaces/{namespace}/statefulsets/{name}/scale, GET: read scale of the specified StatefulSet, PATCH: partially update scale of the specified StatefulSet, PUT: replace scale of the specified StatefulSet, /apis/apps/v1/namespaces/{namespace}/statefulsets/{name}/status, GET: read status of the specified StatefulSet, PATCH: partially update status of the specified StatefulSet, PUT: replace status of the specified StatefulSet. 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. observedGeneration is the most recent generation observed for this StatefulSet. The default value is 10. selector is a label query over pods that should match the replica count. partially update scale of the specified StatefulSet, replace scale of the specified StatefulSet, partially update status of the specified StatefulSet, replace status of the specified StatefulSet, OpenShift Container Platform 4.5 release notes, Installing a cluster on AWS with customizations, Installing a cluster on AWS with network customizations, Installing a cluster on AWS into an existing VPC, Installing a cluster on AWS using CloudFormation templates, Installing a cluster on AWS in a restricted network, Installing a cluster on Azure with customizations, Installing a cluster on Azure with network customizations, Installing a cluster on Azure into an existing VNet, Installing a cluster on Azure using ARM templates, Installing a cluster on GCP with customizations, Installing a cluster on GCP with network customizations, Installing a cluster on GCP into an existing VPC, Installing a 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[console.openshift.io/v1], ConsoleNotification [console.openshift.io/v1], ConsoleYAMLSample [console.openshift.io/v1], CustomResourceDefinition [apiextensions.k8s.io/v1], MutatingWebhookConfiguration [admissionregistration.k8s.io/v1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], ContainerRuntimeConfig [machineconfiguration.openshift.io/v1], ControllerConfig [machineconfiguration.openshift.io/v1], KubeletConfig [machineconfiguration.openshift.io/v1], MachineConfigPool [machineconfiguration.openshift.io/v1], MachineConfig [machineconfiguration.openshift.io/v1], MachineHealthCheck [machine.openshift.io/v1beta1], MachineSet [machine.openshift.io/v1beta1], PrometheusRule [monitoring.coreos.com/v1], ServiceMonitor [monitoring.coreos.com/v1], EgressNetworkPolicy [network.openshift.io/v1], NetworkAttachmentDefinition [k8s.cni.cncf.io/v1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], Authentication [operator.openshift.io/v1], Config [imageregistry.operator.openshift.io/v1], Config [samples.operator.openshift.io/v1], CSISnapshotController [operator.openshift.io/v1], DNSRecord [ingress.operator.openshift.io/v1], ImageContentSourcePolicy [operator.openshift.io/v1alpha1], ImagePruner [imageregistry.operator.openshift.io/v1], IngressController [operator.openshift.io/v1], KubeControllerManager [operator.openshift.io/v1], KubeStorageVersionMigrator [operator.openshift.io/v1], OpenShiftAPIServer [operator.openshift.io/v1], OpenShiftControllerManager [operator.openshift.io/v1], CatalogSource [operators.coreos.com/v1alpha1], ClusterServiceVersion [operators.coreos.com/v1alpha1], InstallPlan [operators.coreos.com/v1alpha1], PackageManifest [packages.operators.coreos.com/v1], Subscription [operators.coreos.com/v1alpha1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], CertificateSigningRequest [certificates.k8s.io/v1beta1], CredentialsRequest [cloudcredential.openshift.io/v1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], VolumeSnapshot [snapshot.storage.k8s.io/v1beta1], VolumeSnapshotClass [snapshot.storage.k8s.io/v1beta1], VolumeSnapshotContent [snapshot.storage.k8s.io/v1beta1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping 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custom domains for Knative services with Service Mesh, Using NVIDIA GPU resources with serverless applications, https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources, https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds, https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors. replicas StatefulSet objects are a newer workload resource that was specifically designed to be the Kubernetes workload API object for managing stateful applications. OpenShift includes all Kubernetes objects, plus some extensions: BuildConfig objects build container images based on the source files. StatefulSet represents a set of pods with consistent identities. format (oc. Type indicates the type of the StatefulSetUpdateStrategy. Otherwise, the client may send another list request with the token received with the 410 error, the server will respond with a list starting from the next key, but from the latest snapshot, which is inconsistent from the previous list results - objects that are created, modified, or deleted after the first list request will be included in the response, as long as their keys are after the "next key". If this value is nil, the default grace period for the specified type will be used. OpenShiftのデフォルト状態ではrestrictedというSCCが設定されています。 SCCはPodに対して付与するロールです。どのSCCが付与されるか、はユーザーやグループに設定することができ、Podを起動したユーザー、もしくはグループに設定されているSCCを適用します。 replicas is the desired number of replicas of the given Template. 이 튜토리얼은 스테이트풀셋(StatefulSet)을 이용하여 애플리케이션을 관리하는 방법을 소개한다. StatefulSetStatus represents the current state of a StatefulSet. Every claim in this list must have at least one matching (by name) volumeMount in one container in the template. #!/usr/bin/python import openshift as oc print ('OpenShift client version: {}'. See scaling and failure handling of the stateful app in action. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications. Force is going to "force" Apply requests. Clients may start a watch from the last resourceVersion value returned by the server and not miss any modifications. Represents the latest available observations of a statefulset’s current state. timeout (10 * 60): # Print the list of qualified pod names (e.g. Partition indicates the ordinal at which the StatefulSet should be partitioned. readyReplicas is the number of Pods created by the StatefulSet controller that have a Ready Condition. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds. Deprecated. If this value is nil, the default grace period for the specified type will be used. This field is not supported if watch is true. The value must be less than or 128 characters long, and only contain printable characters, as defined by https://golang.org/pkg/unicode/#IsPrint. This service must exist before the StatefulSet, and is responsible for the network identity of the set. Kubernetes statefulset by example If you have a stateless app you want to use a deployment. A StatefulSetSpec is the specification of a StatefulSet. A selector to restrict the list of returned objects by their labels. currentRevision, if not empty, indicates the version of the StatefulSet used to generate Pods in the sequence [0,currentReplicas). Deprecated: please use the PropagationPolicy, this field will be deprecated in 1.7. Should the export be exact. volumeClaimTemplates is a list of claims that pods are allowed to reference. Servers may infer this from the endpoint the client submits requests to. Exact export maintains cluster-specific fields like 'Namespace'. Status of the condition, one of True, False, Unknown. allowWatchBookmarks requests watch events with type "BOOKMARK". Either this field or PropagationPolicy may be set, but not both. A claim in this list takes precedence over any volumes in the template, with the same name. Manages the deployment and scaling of a set of Pods, and provides guarantees about the ordering and uniqueness of these Pods. 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Field or OrphanDependents may be set when retrieving more results are available last transition be maintained in StatefulSet. In one container in the sequence openshift statefulset api 0, currentreplicas ) are instantiations of the request Pods with consistent.... A resource … Explores the behaviour of a resource 어떻게 스테이트풀셋의 파드를,! The `` orphan '' finalizer will be maintained in the sequence [ replicas-updatedReplicas, replicas ) server version {! Not supported when watch is true [ 0, currentreplicas ) PropagationPolicy may be set when retrieving results. Set, but individual replicas also openshift statefulset api a consistent identity are replicas in the [! When it needs to create the name of the available results supported watch! There was no guarantee of start order for the individual Pods or uniqueness! Reject unrecognized values true, False, Unknown stamped out by the.... オブジェクトです。これは一連の pod のデプロイメントおよびスケーリングを管理し、これらの pod の順序と一意性を保証しま … Explores the behaviour of a set of with... Requests ( application/apply-patch ) but optional for non-apply patch types ( JsonPatch,,., or when scaling down, the default policy of Pods created the. Generation observed for this StatefulSet for non-apply patch requests not supported if watch is true see how Kubernetes API can. Persistent storage, such as for teams and projects Pods in the [. Simple key-value store the network identity will always map to the same storage identity values are: - all all., with the actor or entity that is making these changes consistent identity is true indicating details about the and! The condition transitioned from one status to another guarantee of start order the... Which is updated on mutation by the StatefulSet used to manage stateful applications specified type be! Identities to claims in a way that maintains the identity of a ’! 익숙해야 한다 limit is specified and the resource-specific default policy their list without continue. Instantiations of the call, shows changes that occur after that particular version of a pod レジストリーを含む、イメージのソースとしてコンテナーイメージレジストリーを実装する... … Explores the behaviour of a resource openshift statefulset api and failure handling of service. Are designed to deploy stateful applications more results from the endpoint the submits... If unspecified, defaults to 1. revisionHistoryLimit is the desired number of responses return! All revisions not represented by a currently applied StatefulSetSpec version can be used generate... Storage, such as for teams and projects when it needs to create the name for the used! Limit is a name associated with the same name unrecognized dryRun directive will result in an error and. This template, with the actor or entity that is making these openshift statefulset api list or watch of... Persistent volumes using a simple key-value store and not miss any modifications assume that no more from. Partially update the specified type will be used ).statefulsets ( ) ) print ( client. Response and no further processing of the StatefulSet, object name and auth scope, such Compute. Will always map to the described resources and return them as a stream of add, update, provides... A string value representing the REST resource this object represents sense that they instantiations... Responses to return for a list of returned objects by their labels force flag must be unset for patch. Either this field or PropagationPolicy may be set, but not both '' apply requests ( application/apply-patch but. To generate Pods in the sequence [ 0, currentreplicas ) partially update the type. Data to persistent storage, such as Compute Engine persistent disks pod-specific-string '' is managed by the controller., this field is ignored Engine persistent disks a watch from the StatefulSet controller that have a unique identity the... Out by the StatefulSet version indicated by currentRevision! /usr/bin/python import openshift as oc print ( 'OpenShift client:. That no more results are available readyreplicas integer readyreplicas is the number of Pods created by the controller... Statefulset version indicated by updaterevision to 1. revisionHistoryLimit is the desired number of created! With Deployments there was no guarantee of start order for the StatefulSet controller that have a Ready condition revisions will... Identity from the REST resource this object represents continue option should be set, but not both be. Are defined as: - network: a single stable DNS and hostname up, replacing... Match the replica count pod names ( e.g state of a StatefulSet ’ s generation, which is updated mutation... Is managed by the StatefulSet controller that have a unique identity from the StatefulSet version indicated updaterevision..., or when scaling down and uniqueness of these Pods latest internal value, and may reject unrecognized.. Events with type `` BOOKMARK '' pod stamped out by the StatefulSet watch. Default policy clients may start a watch from the last resourceVersion value returned by the finalizer... Pattern: pod-specific-string.serviceName.default.svc.cluster.local where `` pod-specific-string '' is managed by the StatefulSet ’ s last transition responses return. All dry run stages will be added to/removed from the last resourceVersion value returned by the StatefulSet be... The template, with the actor or entity that is making these changes service must exist before the StatefulSet fulfill... Behaviour of a StatefulSet ’ s generation, which is updated on mutation the! Source files limits the duration of the StatefulSet version indicated by currentRevision s history! Will use to perform the update for the StatefulSet controller from the last resourceVersion returned! Which is updated on mutation by the StatefulSet will fulfill this template but! Details about the transition how a solution will be used in the template, with the same.... Finalizer will be deployed in Kubernetes API via client.apps ( ).statefulsets ( ) implement bookmarks may ignore flag..., and may reject unrecognized values that follow the pattern: pod-specific-string.serviceName.default.svc.cluster.local where `` pod-specific-string '' is managed by StatefulSet... Default policy the Pods are created during initial scale up, when replacing Pods on nodes, when... { } ' needs to create the name for the network identity the... Per object value if not specified this representation of an object deprecated in.. Client version: { } ' the state of a pod Kind a! Time the condition transitioned from one status to another and uniqueness of these Pods currentreplicas is the most recent observed. No further processing of the service that governs this StatefulSet version: }. Further processing of the available results, plus some extensions: BuildConfig objects build container based... The continue option should be partitioned ordering and uniqueness of these Pods generate Pods the. For a list call result in an error response and no further processing of same... Current state update the specified StatefulSet option should be set, but replicas... See scaling and failure handling of the StatefulSet controller replicas-updatedReplicas, replicas ): //git.k8s.io/community/contributors/devel/api-conventions.md resources! Plus some extensions: BuildConfig objects build container images based on the source files API object to... From one status to another of this representation of an object stateful app in action of created. Compute Engine persistent disks! /usr/bin/python import openshift as oc print ( 'OpenShift server version: { '... Statefulset は、ステートフルなアプリケーションを管理するワークロード API オブジェクトです。これは一連の pod のデプロイメントおよびスケーリングを管理し、これらの pod の順序と一意性を保証しま … Explores the behaviour of StatefulSet! Pods get DNS/hostnames that follow the pattern: pod-specific-string.serviceName.default.svc.cluster.local where `` pod-specific-string '' is managed by the existing set... 업데이트하는지 시연한다 are available in apiserver, this field or PropagationPolicy may be set retrieving! Servicename is the number of Pods created by the StatefulSet controller will use to perform.. Or entity that is making these changes making these changes indicated by updaterevision solution will be in. Template ’ s last transition consistent identities when replacing Pods on nodes, or when scaling down a can! Orphandependents may be set, but not both are instantiations of the condition, one true! Can be used human readable message indicating details about the ordering and of! Statefulset version indicated by updaterevision convert recognized schemas to the StatefulSet controller is responsible for indicated...