ミ那些﹏
这家伙太懒，什么都没留下
这家伙太懒，什么都没留下
apiVersion: v1
kind: ServiceAccount
metadata:
name: sa-all
namespace: test-namespace
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
annotations:
rbac.authorization.kubernetes.io/autoupdate: "true"
labels:
kubernetes.io/bootstrapping: rbac-defaults
name: cluster-role-all
rules:
- apiGroups:
- '*'
resources:
- '*'
verbs:
- '*'
- nonResourceURLs:
- '*'
verbs:
- '*'
*代表所有。
verbs包括 ["get", "list", "watch", "create", "update", "patch", "delete"]权限。
你也可以设置部份权限和资源，如下
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: monitoring-endpoints
labels:
rbac.example.com/aggregate-to-monitoring: "true"
# 当你创建 "monitoring-endpoints" ClusterRole 时，
# 下面的规则会被添加到 "monitoring" ClusterRole 中
rules:
- apiGroups: [""]
resources: ["services", "endpoints", "pods"]
verbs: ["get", "list", "watch"]
通过kubectl api-resources命令可以查看kubernetes当前版本apiGroups和resources。
NAME SHORTNAMES APIGROUP NAMESPACED KIND
bindings true Binding
componentstatuses cs false ComponentStatus
configmaps cm true ConfigMap
endpoints ep true Endpoints
events ev true Event
limitranges limits true LimitRange
namespaces ns false Namespace
nodes no false Node
persistentvolumeclaims pvc true PersistentVolumeClaim
persistentvolumes pv false PersistentVolume
pods po true Pod
podtemplates true PodTemplate
replicationcontrollers rc true ReplicationController
resourcequotas quota true ResourceQuota
secrets true Secret
serviceaccounts sa true ServiceAccount
services svc true Service
mutatingwebhookconfigurations admissionregistration.k8s.io false MutatingWebhookConfiguration
validatingwebhookconfigurations admissionregistration.k8s.io false ValidatingWebhookConfiguration
customresourcedefinitions crd,crds apiextensions.k8s.io false CustomResourceDefinition
apiservices apiregistration.k8s.io false APIService
applications app.k8s.io true Application
controllerrevisions apps true ControllerRevision
daemonsets ds apps true DaemonSet
deployments deploy apps true Deployment
replicasets rs apps true ReplicaSet
statefulsets sts apps true StatefulSet
workflows wf argoproj.io true Workflow
tokenreviews authentication.k8s.io false TokenReview
localsubjectaccessreviews authorization.k8s.io true LocalSubjectAccessReview
selfsubjectaccessreviews authorization.k8s.io false SelfSubjectAccessReview
selfsubjectrulesreviews authorization.k8s.io false SelfSubjectRulesReview
subjectaccessreviews authorization.k8s.io false SubjectAccessReview
horizontalpodautoscalers hpa autoscaling true HorizontalPodAutoscaler
cronjobs cj batch true CronJob
jobs batch true Job
certificatesigningrequests csr certificates.k8s.io false CertificateSigningRequest
leases coordination.k8s.io true Lease
events ev events.k8s.io true Event
daemonsets ds extensions true DaemonSet
deployments deploy extensions true Deployment
ingresses ing extensions true Ingress
networkpolicies netpol extensions true NetworkPolicy
podsecuritypolicies psp extensions false PodSecurityPolicy
replicasets rs extensions true ReplicaSet
pytorchjobs kubeflow.org true PyTorchJob
scheduledworkflows swf kubeflow.org true ScheduledWorkflow
studyjobs kubeflow.org true StudyJob
tfjobs kubeflow.org true TFJob
compositecontrollers cc,cctl metacontroller.k8s.io false CompositeController
controllerrevisions metacontroller.k8s.io true ControllerRevision
decoratorcontrollers dec,decorators metacontroller.k8s.io false DecoratorController
alertmanagers monitoring.coreos.com true Alertmanager
prometheuses monitoring.coreos.com true Prometheus
prometheusrules monitoring.coreos.com true PrometheusRule
servicemonitors monitoring.coreos.com true ServiceMonitor
networkpolicies netpol networking.k8s.io true NetworkPolicy
poddisruptionbudgets pdb policy true PodDisruptionBudget
podsecuritypolicies psp policy false PodSecurityPolicy
clusterrolebindings rbac.authorization.k8s.io false ClusterRoleBinding
clusterroles rbac.authorization.k8s.io false ClusterRole
rolebindings rbac.authorization.k8s.io true RoleBinding
roles rbac.authorization.k8s.io true Role
priorityclasses pc scheduling.k8s.io false PriorityClass
storageclasses sc storage.k8s.io false StorageClass
volumeattachments storage.k8s.io false VolumeAttachment
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
annotations:
rbac.authorization.kubernetes.io/autoupdate: "true"
labels:
kubernetes.io/bootstrapping: rbac-defaults
name: cluster-role-all-binding
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-role-all
subjects:
- kind: ServiceAccount
name: sa-all
namespace: test-namespace
在你使用的test-namespace命名空间中的所有的工作负载当中都可以使用ServiceAccount。
在Pod当中使用
如果当前工作负载未绑定ServiceAccount，则会自动绑定
defaultServiceAccount。
apiVersion: v1
kind: Pod
metadata:
name: test-pod
namespace: test-namespace
spec:
serviceAccountName: sa-all
automountServiceAccountToken: false
...
另外一种方式，还可以通过文件卷挂载的方式使用
apiVersion: v1
kind: Pod
metadata:
name: test-pod
namespace: test-namespace
spec:
containers:
- image: nginx
name: nginx
volumeMounts:
- mountPath: /var/run/secrets/tokens
name: vault-token
serviceAccountName: sa-all
volumes:
- name: vault-token
projected:
sources:
- serviceAccountToken:
path: vault-token
expirationSeconds: 7200 # 过期时间
audience: vault
kubernetes会替 Pod 请求令牌并将其保存起来，通过将令牌存储到一个可配置的 路径使之在 Pod 内可用，并在令牌快要到期的时候刷新它。 kubelet 会在令牌存在期达到其 TTL 的 80% 的时候或者令牌生命期超过 24 小时 的时候主动轮换它。
