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/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package bootstrappolicy
import (
"strings"
"github.com/golang/glog"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
rbac "k8s.io/kubernetes/pkg/apis/rbac"
)
const saRolePrefix = "system:controller:"
var (
// controllerRoles is a slice of roles used for controllers
controllerRoles = []rbac.ClusterRole{}
// controllerRoleBindings is a slice of roles used for controllers
controllerRoleBindings = []rbac.ClusterRoleBinding{}
)
func addControllerRole(role rbac.ClusterRole) {
if !strings.HasPrefix(role.Name, saRolePrefix) {
glog.Fatalf(`role %q must start with %q`, role.Name, saRolePrefix)
}
for _, existingRole := range controllerRoles {
if role.Name == existingRole.Name {
glog.Fatalf("role %q was already registered", role.Name)
}
}
controllerRoles = append(controllerRoles, role)
addClusterRoleLabel(controllerRoles)
controllerRoleBindings = append(controllerRoleBindings,
rbac.NewClusterBinding(role.Name).SAs("kube-system", role.Name[len(saRolePrefix):]).BindingOrDie())
addClusterRoleBindingLabel(controllerRoleBindings)
}
func eventsRule() rbac.PolicyRule {
return rbac.NewRule("create", "update", "patch").Groups(legacyGroup).Resources("events").RuleOrDie()
}
func init() {
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "attachdetach-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("persistentvolumes", "persistentvolumeclaims").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
rbac.NewRule("patch", "update").Groups(legacyGroup).Resources("nodes/status").RuleOrDie(),
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "cronjob-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "update").Groups(batchGroup).Resources("cronjobs").RuleOrDie(),
rbac.NewRule("get", "list", "watch", "create", "update", "delete", "patch").Groups(batchGroup).Resources("jobs").RuleOrDie(),
rbac.NewRule("update").Groups(batchGroup).Resources("cronjobs/status").RuleOrDie(),
rbac.NewRule("list", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "daemon-set-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(extensionsGroup).Resources("daemonsets").RuleOrDie(),
rbac.NewRule("update").Groups(extensionsGroup).Resources("daemonsets/status").RuleOrDie(),
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
rbac.NewRule("list", "watch", "create", "delete", "patch").Groups(legacyGroup).Resources("pods").RuleOrDie(),
rbac.NewRule("create").Groups(legacyGroup).Resources("pods/binding").RuleOrDie(),
rbac.NewRule("list", "watch", "create", "delete", "update", "patch").Groups(appsGroup).Resources("controllerrevisions").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "deployment-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "update").Groups(extensionsGroup, appsGroup).Resources("deployments").RuleOrDie(),
rbac.NewRule("update").Groups(extensionsGroup, appsGroup).Resources("deployments/status").RuleOrDie(),
rbac.NewRule("get", "list", "watch", "create", "update", "patch", "delete").Groups(extensionsGroup).Resources("replicasets").RuleOrDie(),
// TODO: remove "update" once
// https://github.com/kubernetes/kubernetes/issues/36897 is resolved.
rbac.NewRule("get", "list", "watch", "update").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "disruption-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(extensionsGroup, appsGroup).Resources("deployments").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(extensionsGroup).Resources("replicasets").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(legacyGroup).Resources("replicationcontrollers").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(policyGroup).Resources("poddisruptionbudgets").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(appsGroup).Resources("statefulsets").RuleOrDie(),
rbac.NewRule("update").Groups(policyGroup).Resources("poddisruptionbudgets/status").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "endpoint-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(legacyGroup).Resources("services", "pods").RuleOrDie(),
rbac.NewRule("get", "list", "create", "update", "delete").Groups(legacyGroup).Resources("endpoints").RuleOrDie(),
rbac.NewRule("create").Groups(legacyGroup).Resources("endpoints/restricted").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "generic-garbage-collector"},
Rules: []rbac.PolicyRule{
// the GC controller needs to run list/watches, selective gets, and updates against any resource
rbac.NewRule("get", "list", "watch", "patch", "update", "delete").Groups("*").Resources("*").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "horizontal-pod-autoscaler"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(autoscalingGroup).Resources("horizontalpodautoscalers").RuleOrDie(),
rbac.NewRule("update").Groups(autoscalingGroup).Resources("horizontalpodautoscalers/status").RuleOrDie(),
rbac.NewRule("get", "update").Groups(legacyGroup).Resources("replicationcontrollers/scale").RuleOrDie(),
// TODO this should be removable when the HPA contoller is fixed
rbac.NewRule("get", "update").Groups(extensionsGroup).Resources("replicationcontrollers/scale").RuleOrDie(),
rbac.NewRule("get", "update").Groups(extensionsGroup, appsGroup).Resources("deployments/scale", "replicasets/scale").RuleOrDie(),
rbac.NewRule("list").Groups(legacyGroup).Resources("pods").RuleOrDie(),
// TODO: Remove the root /proxy permission in 1.7; MetricsClient no longer requires root proxy access as of 1.6 (fixed in https://github.com/kubernetes/kubernetes/pull/39636)
rbac.NewRule("proxy").Groups(legacyGroup).Resources("services").Names("https:heapster:", "http:heapster:").RuleOrDie(),
// TODO: restrict this to the appropriate namespace
rbac.NewRule("get").Groups(legacyGroup).Resources("services/proxy").Names("https:heapster:", "http:heapster:").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "job-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "update").Groups(batchGroup).Resources("jobs").RuleOrDie(),
rbac.NewRule("update").Groups(batchGroup).Resources("jobs/status").RuleOrDie(),
rbac.NewRule("list", "watch", "create", "delete", "patch").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "namespace-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "delete").Groups(legacyGroup).Resources("namespaces").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("namespaces/finalize", "namespaces/status").RuleOrDie(),
rbac.NewRule("get", "list", "delete", "deletecollection").Groups("*").Resources("*").RuleOrDie(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "node-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "update", "delete", "patch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
rbac.NewRule("patch", "update").Groups(legacyGroup).Resources("nodes/status").RuleOrDie(),
// used for pod eviction
rbac.NewRule("update").Groups(legacyGroup).Resources("pods/status").RuleOrDie(),
rbac.NewRule("list", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "persistent-volume-binder"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "update", "create", "delete").Groups(legacyGroup).Resources("persistentvolumes").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("persistentvolumes/status").RuleOrDie(),
rbac.NewRule("get", "list", "watch", "update").Groups(legacyGroup).Resources("persistentvolumeclaims").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("persistentvolumeclaims/status").RuleOrDie(),
rbac.NewRule("list", "watch", "get", "create", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
// glusterfs
rbac.NewRule("get", "list", "watch").Groups(storageGroup).Resources("storageclasses").RuleOrDie(),
rbac.NewRule("get", "create", "delete").Groups(legacyGroup).Resources("services", "endpoints").RuleOrDie(),
rbac.NewRule("get").Groups(legacyGroup).Resources("secrets").RuleOrDie(),
// openstack
rbac.NewRule("get", "list").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
// recyclerClient.WatchPod
rbac.NewRule("watch").Groups(legacyGroup).Resources("events").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "pod-garbage-collector"},
Rules: []rbac.PolicyRule{
rbac.NewRule("list", "watch", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
rbac.NewRule("list").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "replicaset-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch", "update").Groups(extensionsGroup).Resources("replicasets").RuleOrDie(),
rbac.NewRule("update").Groups(extensionsGroup).Resources("replicasets/status").RuleOrDie(),
rbac.NewRule("list", "watch", "patch", "create", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "replication-controller"},
Rules: []rbac.PolicyRule{
// 1.0 controllers needed get, update, so without these old controllers break on new servers
rbac.NewRule("get", "list", "watch", "update").Groups(legacyGroup).Resources("replicationcontrollers").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("replicationcontrollers/status").RuleOrDie(),
rbac.NewRule("list", "watch", "patch", "create", "delete").Groups(legacyGroup).Resources("pods").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "resourcequota-controller"},
Rules: []rbac.PolicyRule{
// quota can count quota on anything for reconcilation, so it needs full viewing powers
rbac.NewRule("list", "watch").Groups("*").Resources("*").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("resourcequotas/status").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "route-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
rbac.NewRule("patch").Groups(legacyGroup).Resources("nodes/status").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "service-account-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("create").Groups(legacyGroup).Resources("serviceaccounts").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "service-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(legacyGroup).Resources("services").RuleOrDie(),
rbac.NewRule("update").Groups(legacyGroup).Resources("services/status").RuleOrDie(),
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "statefulset-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("list", "watch").Groups(legacyGroup).Resources("pods").RuleOrDie(),
rbac.NewRule("get", "list", "watch").Groups(appsGroup).Resources("statefulsets").RuleOrDie(),
rbac.NewRule("update").Groups(appsGroup).Resources("statefulsets/status").RuleOrDie(),
rbac.NewRule("get", "create", "delete", "update", "patch").Groups(legacyGroup).Resources("pods").RuleOrDie(),
rbac.NewRule("get", "create", "delete", "update", "patch", "list", "watch").Groups(appsGroup).Resources("controllerrevisions").RuleOrDie(),
rbac.NewRule("get", "create").Groups(legacyGroup).Resources("persistentvolumeclaims").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "ttl-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("update", "patch", "list", "watch").Groups(legacyGroup).Resources("nodes").RuleOrDie(),
eventsRule(),
},
})
addControllerRole(rbac.ClusterRole{
ObjectMeta: metav1.ObjectMeta{Name: saRolePrefix + "certificate-controller"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get", "list", "watch").Groups(certificatesGroup).Resources("certificatesigningrequests").RuleOrDie(),
rbac.NewRule("update").Groups(certificatesGroup).Resources("certificatesigningrequests/status", "certificatesigningrequests/approval").RuleOrDie(),
rbac.NewRule("create").Groups(authorizationGroup).Resources("subjectaccessreviews").RuleOrDie(),
eventsRule(),
},
})
}
// ControllerRoles returns the cluster roles used by controllers
func ControllerRoles() []rbac.ClusterRole {
return controllerRoles
}
// ControllerRoleBindings returns the role bindings used by controllers
func ControllerRoleBindings() []rbac.ClusterRoleBinding {
return controllerRoleBindings
}
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