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5.4. クラスターロールおよびバインディングの表示

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oc CLI で oc describe コマンドを使用して、クラスターロールおよびバインディングを表示できます。

前提条件

  • oc CLI をインストールします。
  • クラスターロールおよびバインディングを表示するパーミッションを取得します。

クラスター全体でバインドされた cluster-admin のデフォルトのクラスターロールを持つユーザー は、クラスターロールおよびバインディングの表示を含む、すべてのリソースでのすべてのアクションを実行できます。

手順

  1. クラスターロールおよびそれらの関連付けられたルールセットを表示するには、以下を実行します。

    $ oc describe clusterrole.rbac

    出力例

    Name:         admin
    Labels:       kubernetes.io/bootstrapping=rbac-defaults
    Annotations:  rbac.authorization.kubernetes.io/autoupdate: true
    PolicyRule:
      Resources                                                  Non-Resource URLs  Resource Names  Verbs
      ---------                                                  -----------------  --------------  -----
      .packages.apps.redhat.com                                  []                 []              [* create update patch delete get list watch]
      imagestreams                                               []                 []              [create delete deletecollection get list patch update watch create get list watch]
      imagestreams.image.openshift.io                            []                 []              [create delete deletecollection get list patch update watch create get list watch]
      secrets                                                    []                 []              [create delete deletecollection get list patch update watch get list watch create delete deletecollection patch update]
      buildconfigs/webhooks                                      []                 []              [create delete deletecollection get list patch update watch get list watch]
      buildconfigs                                               []                 []              [create delete deletecollection get list patch update watch get list watch]
      buildlogs                                                  []                 []              [create delete deletecollection get list patch update watch get list watch]
      deploymentconfigs/scale                                    []                 []              [create delete deletecollection get list patch update watch get list watch]
      deploymentconfigs                                          []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreamimages                                          []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreammappings                                        []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreamtags                                            []                 []              [create delete deletecollection get list patch update watch get list watch]
      processedtemplates                                         []                 []              [create delete deletecollection get list patch update watch get list watch]
      routes                                                     []                 []              [create delete deletecollection get list patch update watch get list watch]
      templateconfigs                                            []                 []              [create delete deletecollection get list patch update watch get list watch]
      templateinstances                                          []                 []              [create delete deletecollection get list patch update watch get list watch]
      templates                                                  []                 []              [create delete deletecollection get list patch update watch get list watch]
      deploymentconfigs.apps.openshift.io/scale                  []                 []              [create delete deletecollection get list patch update watch get list watch]
      deploymentconfigs.apps.openshift.io                        []                 []              [create delete deletecollection get list patch update watch get list watch]
      buildconfigs.build.openshift.io/webhooks                   []                 []              [create delete deletecollection get list patch update watch get list watch]
      buildconfigs.build.openshift.io                            []                 []              [create delete deletecollection get list patch update watch get list watch]
      buildlogs.build.openshift.io                               []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreamimages.image.openshift.io                       []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreammappings.image.openshift.io                     []                 []              [create delete deletecollection get list patch update watch get list watch]
      imagestreamtags.image.openshift.io                         []                 []              [create delete deletecollection get list patch update watch get list watch]
      routes.route.openshift.io                                  []                 []              [create delete deletecollection get list patch update watch get list watch]
      processedtemplates.template.openshift.io                   []                 []              [create delete deletecollection get list patch update watch get list watch]
      templateconfigs.template.openshift.io                      []                 []              [create delete deletecollection get list patch update watch get list watch]
      templateinstances.template.openshift.io                    []                 []              [create delete deletecollection get list patch update watch get list watch]
      templates.template.openshift.io                            []                 []              [create delete deletecollection get list patch update watch get list watch]
      serviceaccounts                                            []                 []              [create delete deletecollection get list patch update watch impersonate create delete deletecollection patch update get list watch]
      imagestreams/secrets                                       []                 []              [create delete deletecollection get list patch update watch]
      rolebindings                                               []                 []              [create delete deletecollection get list patch update watch]
      roles                                                      []                 []              [create delete deletecollection get list patch update watch]
      rolebindings.authorization.openshift.io                    []                 []              [create delete deletecollection get list patch update watch]
      roles.authorization.openshift.io                           []                 []              [create delete deletecollection get list patch update watch]
      imagestreams.image.openshift.io/secrets                    []                 []              [create delete deletecollection get list patch update watch]
      rolebindings.rbac.authorization.k8s.io                     []                 []              [create delete deletecollection get list patch update watch]
      roles.rbac.authorization.k8s.io                            []                 []              [create delete deletecollection get list patch update watch]
      networkpolicies.extensions                                 []                 []              [create delete deletecollection patch update create delete deletecollection get list patch update watch get list watch]
      networkpolicies.networking.k8s.io                          []                 []              [create delete deletecollection patch update create delete deletecollection get list patch update watch get list watch]
      configmaps                                                 []                 []              [create delete deletecollection patch update get list watch]
      endpoints                                                  []                 []              [create delete deletecollection patch update get list watch]
      persistentvolumeclaims                                     []                 []              [create delete deletecollection patch update get list watch]
      pods                                                       []                 []              [create delete deletecollection patch update get list watch]
      replicationcontrollers/scale                               []                 []              [create delete deletecollection patch update get list watch]
      replicationcontrollers                                     []                 []              [create delete deletecollection patch update get list watch]
      services                                                   []                 []              [create delete deletecollection patch update get list watch]
      daemonsets.apps                                            []                 []              [create delete deletecollection patch update get list watch]
      deployments.apps/scale                                     []                 []              [create delete deletecollection patch update get list watch]
      deployments.apps                                           []                 []              [create delete deletecollection patch update get list watch]
      replicasets.apps/scale                                     []                 []              [create delete deletecollection patch update get list watch]
      replicasets.apps                                           []                 []              [create delete deletecollection patch update get list watch]
      statefulsets.apps/scale                                    []                 []              [create delete deletecollection patch update get list watch]
      statefulsets.apps                                          []                 []              [create delete deletecollection patch update get list watch]
      horizontalpodautoscalers.autoscaling                       []                 []              [create delete deletecollection patch update get list watch]
      cronjobs.batch                                             []                 []              [create delete deletecollection patch update get list watch]
      jobs.batch                                                 []                 []              [create delete deletecollection patch update get list watch]
      daemonsets.extensions                                      []                 []              [create delete deletecollection patch update get list watch]
      deployments.extensions/scale                               []                 []              [create delete deletecollection patch update get list watch]
      deployments.extensions                                     []                 []              [create delete deletecollection patch update get list watch]
      ingresses.extensions                                       []                 []              [create delete deletecollection patch update get list watch]
      replicasets.extensions/scale                               []                 []              [create delete deletecollection patch update get list watch]
      replicasets.extensions                                     []                 []              [create delete deletecollection patch update get list watch]
      replicationcontrollers.extensions/scale                    []                 []              [create delete deletecollection patch update get list watch]
      poddisruptionbudgets.policy                                []                 []              [create delete deletecollection patch update get list watch]
      deployments.apps/rollback                                  []                 []              [create delete deletecollection patch update]
      deployments.extensions/rollback                            []                 []              [create delete deletecollection patch update]
      catalogsources.operators.coreos.com                        []                 []              [create update patch delete get list watch]
      clusterserviceversions.operators.coreos.com                []                 []              [create update patch delete get list watch]
      installplans.operators.coreos.com                          []                 []              [create update patch delete get list watch]
      packagemanifests.operators.coreos.com                      []                 []              [create update patch delete get list watch]
      subscriptions.operators.coreos.com                         []                 []              [create update patch delete get list watch]
      buildconfigs/instantiate                                   []                 []              [create]
      buildconfigs/instantiatebinary                             []                 []              [create]
      builds/clone                                               []                 []              [create]
      deploymentconfigrollbacks                                  []                 []              [create]
      deploymentconfigs/instantiate                              []                 []              [create]
      deploymentconfigs/rollback                                 []                 []              [create]
      imagestreamimports                                         []                 []              [create]
      localresourceaccessreviews                                 []                 []              [create]
      localsubjectaccessreviews                                  []                 []              [create]
      podsecuritypolicyreviews                                   []                 []              [create]
      podsecuritypolicyselfsubjectreviews                        []                 []              [create]
      podsecuritypolicysubjectreviews                            []                 []              [create]
      resourceaccessreviews                                      []                 []              [create]
      routes/custom-host                                         []                 []              [create]
      subjectaccessreviews                                       []                 []              [create]
      subjectrulesreviews                                        []                 []              [create]
      deploymentconfigrollbacks.apps.openshift.io                []                 []              [create]
      deploymentconfigs.apps.openshift.io/instantiate            []                 []              [create]
      deploymentconfigs.apps.openshift.io/rollback               []                 []              [create]
      localsubjectaccessreviews.authorization.k8s.io             []                 []              [create]
      localresourceaccessreviews.authorization.openshift.io      []                 []              [create]
      localsubjectaccessreviews.authorization.openshift.io       []                 []              [create]
      resourceaccessreviews.authorization.openshift.io           []                 []              [create]
      subjectaccessreviews.authorization.openshift.io            []                 []              [create]
      subjectrulesreviews.authorization.openshift.io             []                 []              [create]
      buildconfigs.build.openshift.io/instantiate                []                 []              [create]
      buildconfigs.build.openshift.io/instantiatebinary          []                 []              [create]
      builds.build.openshift.io/clone                            []                 []              [create]
      imagestreamimports.image.openshift.io                      []                 []              [create]
      routes.route.openshift.io/custom-host                      []                 []              [create]
      podsecuritypolicyreviews.security.openshift.io             []                 []              [create]
      podsecuritypolicyselfsubjectreviews.security.openshift.io  []                 []              [create]
      podsecuritypolicysubjectreviews.security.openshift.io      []                 []              [create]
      jenkins.build.openshift.io                                 []                 []              [edit view view admin edit view]
      builds                                                     []                 []              [get create delete deletecollection get list patch update watch get list watch]
      builds.build.openshift.io                                  []                 []              [get create delete deletecollection get list patch update watch get list watch]
      projects                                                   []                 []              [get delete get delete get patch update]
      projects.project.openshift.io                              []                 []              [get delete get delete get patch update]
      namespaces                                                 []                 []              [get get list watch]
      pods/attach                                                []                 []              [get list watch create delete deletecollection patch update]
      pods/exec                                                  []                 []              [get list watch create delete deletecollection patch update]
      pods/portforward                                           []                 []              [get list watch create delete deletecollection patch update]
      pods/proxy                                                 []                 []              [get list watch create delete deletecollection patch update]
      services/proxy                                             []                 []              [get list watch create delete deletecollection patch update]
      routes/status                                              []                 []              [get list watch update]
      routes.route.openshift.io/status                           []                 []              [get list watch update]
      appliedclusterresourcequotas                               []                 []              [get list watch]
      bindings                                                   []                 []              [get list watch]
      builds/log                                                 []                 []              [get list watch]
      deploymentconfigs/log                                      []                 []              [get list watch]
      deploymentconfigs/status                                   []                 []              [get list watch]
      events                                                     []                 []              [get list watch]
      imagestreams/status                                        []                 []              [get list watch]
      limitranges                                                []                 []              [get list watch]
      namespaces/status                                          []                 []              [get list watch]
      pods/log                                                   []                 []              [get list watch]
      pods/status                                                []                 []              [get list watch]
      replicationcontrollers/status                              []                 []              [get list watch]
      resourcequotas/status                                      []                 []              [get list watch]
      resourcequotas                                             []                 []              [get list watch]
      resourcequotausages                                        []                 []              [get list watch]
      rolebindingrestrictions                                    []                 []              [get list watch]
      deploymentconfigs.apps.openshift.io/log                    []                 []              [get list watch]
      deploymentconfigs.apps.openshift.io/status                 []                 []              [get list watch]
      controllerrevisions.apps                                   []                 []              [get list watch]
      rolebindingrestrictions.authorization.openshift.io         []                 []              [get list watch]
      builds.build.openshift.io/log                              []                 []              [get list watch]
      imagestreams.image.openshift.io/status                     []                 []              [get list watch]
      appliedclusterresourcequotas.quota.openshift.io            []                 []              [get list watch]
      imagestreams/layers                                        []                 []              [get update get]
      imagestreams.image.openshift.io/layers                     []                 []              [get update get]
      builds/details                                             []                 []              [update]
      builds.build.openshift.io/details                          []                 []              [update]
    
    
    Name:         basic-user
    Labels:       <none>
    Annotations:  openshift.io/description: A user that can get basic information about projects.
    	              rbac.authorization.kubernetes.io/autoupdate: true
    PolicyRule:
    	Resources                                           Non-Resource URLs  Resource Names  Verbs
    	  ---------                                           -----------------  --------------  -----
    	  selfsubjectrulesreviews                             []                 []              [create]
    	  selfsubjectaccessreviews.authorization.k8s.io       []                 []              [create]
    	  selfsubjectrulesreviews.authorization.openshift.io  []                 []              [create]
    	  clusterroles.rbac.authorization.k8s.io              []                 []              [get list watch]
    	  clusterroles                                        []                 []              [get list]
    	  clusterroles.authorization.openshift.io             []                 []              [get list]
    	  storageclasses.storage.k8s.io                       []                 []              [get list]
    	  users                                               []                 [~]             [get]
    	  users.user.openshift.io                             []                 [~]             [get]
    	  projects                                            []                 []              [list watch]
    	  projects.project.openshift.io                       []                 []              [list watch]
    	  projectrequests                                     []                 []              [list]
    	  projectrequests.project.openshift.io                []                 []              [list]
    
    Name:         cluster-admin
    Labels:       kubernetes.io/bootstrapping=rbac-defaults
    Annotations:  rbac.authorization.kubernetes.io/autoupdate: true
    PolicyRule:
    Resources  Non-Resource URLs  Resource Names  Verbs
    ---------  -----------------  --------------  -----
    *.*        []                 []              [*]
               [*]                []              [*]
    
    ...

  2. 各種のロールにバインドされたユーザーおよびグループを示す、クラスターのロールバインディングの現在のセットを表示するには、以下を実行します。

    $ oc describe clusterrolebinding.rbac

    出力例

    Name:         alertmanager-main
    Labels:       <none>
    Annotations:  <none>
    Role:
      Kind:  ClusterRole
      Name:  alertmanager-main
    Subjects:
      Kind            Name               Namespace
      ----            ----               ---------
      ServiceAccount  alertmanager-main  openshift-monitoring
    
    
    Name:         basic-users
    Labels:       <none>
    Annotations:  rbac.authorization.kubernetes.io/autoupdate: true
    Role:
      Kind:  ClusterRole
      Name:  basic-user
    Subjects:
      Kind   Name                  Namespace
      ----   ----                  ---------
      Group  system:authenticated
    
    
    Name:         cloud-credential-operator-rolebinding
    Labels:       <none>
    Annotations:  <none>
    Role:
      Kind:  ClusterRole
      Name:  cloud-credential-operator-role
    Subjects:
      Kind            Name     Namespace
      ----            ----     ---------
      ServiceAccount  default  openshift-cloud-credential-operator
    
    
    Name:         cluster-admin
    Labels:       kubernetes.io/bootstrapping=rbac-defaults
    Annotations:  rbac.authorization.kubernetes.io/autoupdate: true
    Role:
      Kind:  ClusterRole
      Name:  cluster-admin
    Subjects:
      Kind   Name            Namespace
      ----   ----            ---------
      Group  system:masters
    
    
    Name:         cluster-admins
    Labels:       <none>
    Annotations:  rbac.authorization.kubernetes.io/autoupdate: true
    Role:
      Kind:  ClusterRole
      Name:  cluster-admin
    Subjects:
      Kind   Name                   Namespace
      ----   ----                   ---------
      Group  system:cluster-admins
      User   system:admin
    
    
    Name:         cluster-api-manager-rolebinding
    Labels:       <none>
    Annotations:  <none>
    Role:
      Kind:  ClusterRole
      Name:  cluster-api-manager-role
    Subjects:
      Kind            Name     Namespace
      ----            ----     ---------
      ServiceAccount  default  openshift-machine-api
    
    ...

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