k8s-keystone create cluster roles and tests
This commit adds roles to kubernetes-keystone-webook policy which has permissions similar to clusterrols cluster-admin, edit and view present in kubernetes. Check.sh script is also modified to test and verify the new roles. Change-Id: I43621d2e1036259064c805d97b340589a5b68c93
This commit is contained in:
Sangeet Gupta
Gage Hugo
parent
598faeb8db
commit
eac7202774
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@ -132,6 +132,333 @@ conf:
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- type: project
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values:
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- openstack-system
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- resource:
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verbs:
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- "*"
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resources:
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- "*"
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namespace: "*"
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version: "*"
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match:
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- type: role
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values:
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- admin_k8cluster
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- nonresource:
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verbs:
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- "*"
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path: "*"
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match:
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- type: role
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values:
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- admin_k8cluster
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- resource:
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resources:
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- pods
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- pods/attach
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- pods/exec
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- pods/portforward
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- pods/proxy
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- configmaps
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- endpoints
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- persistentvolumeclaims
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- replicationcontrollers
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- replicationcontrollers/scale
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- secrets
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- serviceaccounts
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- services
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- services/proxy
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: ""
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- bindings
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- events
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- limitranges
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- namespaces/status
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- pods/log
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- pods/status
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- replicationcontrollers/status
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- resourcequotas
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- resourcequotas/status
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- namespaces
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: ""
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- serviceaccounts
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verbs:
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- impersonate
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namespace: "*"
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version: ""
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- daemonsets
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- deployments
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- deployments/rollback
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- deployments/scale
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- replicasets
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- replicasets/scale
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- statefulsets
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "apps"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- horizontalpodautoscalers
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "autoscaling"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- cronjobs
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- jobs
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "batch"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- daemonsets
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- deployments
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- deployments/rollback
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- deployments/scale
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- ingresses
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- networkpolicies
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- replicasets
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- replicasets/scale
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- replicationcontrollers/scale
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "extensions"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- poddisruptionbudgets
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "policy"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- networkpolicies
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verbs:
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- create
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- delete
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- deletecollection
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- get
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- list
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- patch
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- update
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- watch
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namespace: "*"
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version: "networking.k8s.io"
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match:
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- type: role
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values:
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- admin_k8cluster_editor
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- resource:
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resources:
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- configmaps
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- endpoints
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- persistentvolumeclaims
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- pods
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- replicationcontrollers
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- replicationcontrollers/scale
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- serviceaccounts
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- services
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- bindings
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- events
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- limitranges
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- namespaces/status
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- pods/log
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- pods/status
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- replicationcontrollers/status
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- resourcequotas
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- resourcequotas/status
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- namespaces
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: ""
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- daemonsets
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- deployments
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- deployments/scale
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- replicasets
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- replicasets/scale
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- statefulsets
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "apps"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- horizontalpodautoscalers
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "autoscaling"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- cronjobs
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- jobs
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "batch"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- daemonsets
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- deployments
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- deployments/scale
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- ingresses
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- networkpolicies
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- replicasets
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- replicasets/scale
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- replicationcontrollers/scale
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "extensions"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- poddisruptionbudgets
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "policy"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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- resource:
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resources:
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- networkpolicies
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verbs:
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- get
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- list
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- watch
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namespace: "*"
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version: "networking.k8s.io"
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match:
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- type: role
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values:
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- admin_k8cluster_viewer
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secrets:
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identity:
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@ -20,6 +20,28 @@ export OS_CLOUD=openstack_helm
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function keystone_token () {
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openstack token issue -f value -c id
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}
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function report_failed_policy () {
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echo "$1 was $2 to perform $3, which contradicts current policy"
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exit 1
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}
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function test_user_is_authorized () {
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TOKEN=$(keystone_token)
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if ! kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN $1 ; then
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report_failed_policy "$OS_USERNAME" "not allowed" "$1"
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fi
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}
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function test_user_is_unauthorized () {
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TOKEN=$(keystone_token)
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if ! kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN $1 ; then
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echo "Denied, as expected by policy"
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else
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report_failed_policy "$OS_USERNAME" "allowed" "$1"
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fi
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}
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sudo cp -va $HOME/.kube/config /tmp/kubeconfig.yaml
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sudo kubectl --kubeconfig /tmp/kubeconfig.yaml config unset users.kubernetes-admin
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@ -30,6 +52,14 @@ kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get pods
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kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get pods -n openstack
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kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get secrets -n openstack
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# This is used to grab a pod name for the following tests
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TEST_POD="$(kubectl get pods -n openstack | awk 'NR==2{print $1}')"
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# create users
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openstack user create --or-show --password password admin_k8cluster_user
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openstack user create --or-show --password password admin_k8cluster_edit_user
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openstack user create --or-show --password password admin_k8cluster_view_user
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# create project
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openstack project create --or-show openstack-system
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openstack project create --or-show demoProject
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@ -37,10 +67,16 @@ openstack project create --or-show demoProject
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# create roles
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openstack role create --or-show openstackRole
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openstack role create --or-show kube-system-admin
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openstack role create --or-show admin_k8cluster
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openstack role create --or-show admin_k8cluster_editor
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openstack role create --or-show admin_k8cluster_viewer
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# assign user role to project
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openstack role add --project openstack-system --user bob --project-domain default --user-domain ldapdomain openstackRole
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openstack role add --project demoProject --user alice --project-domain default --user-domain ldapdomain kube-system-admin
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openstack role add --project demoProject --user admin_k8cluster_user --project-domain default --user-domain default admin_k8cluster
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openstack role add --project demoProject --user admin_k8cluster_edit_user --project-domain default --user-domain default admin_k8cluster_editor
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openstack role add --project demoProject --user admin_k8cluster_view_user --project-domain default --user-domain default admin_k8cluster_viewer
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unset OS_CLOUD
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export OS_AUTH_URL="http://keystone.openstack.svc.cluster.local/v3"
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@ -50,23 +86,70 @@ export OS_PASSWORD="password"
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export OS_USERNAME="bob"
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export OS_USER_DOMAIN_NAME="ldapdomain"
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# See this does fail as the policy does not allow for a non-admin user
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# Create files for secret generation
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echo -n 'admin' > /tmp/user.txt
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echo -n 'password' > /tmp/pass.txt
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# Issue a member user token
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# See this does fail as the policy does not allow for a non-admin user
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TOKEN=$(keystone_token)
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kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get ingress -n openstack
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if ! kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get pods ; then
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echo "Denied, as expected by policy"
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else
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exit 1
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fi
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test_user_is_unauthorized "get pods"
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export OS_USERNAME="alice"
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export OS_PROJECT_NAME="demoProject"
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TOKEN=$(keystone_token)
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kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get ingress -n kube-system
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if ! kubectl --kubeconfig /tmp/kubeconfig.yaml --token $TOKEN get pods -n openstack ; then
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echo "Denied, as expected by policy"
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else
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exit 1
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fi
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test_user_is_unauthorized "get pods -n openstack"
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export OS_USER_DOMAIN_NAME="default"
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#admin_k8cluser_user
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export OS_USERNAME="admin_k8cluster_user"
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RESOURCES=("pods" "configmaps" "endpoints" "persistentvolumeclaims" \
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"replicationcontrollers" "secrets" "serviceaccounts" \
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"services" "events" "limitranges" "namespace" \
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"replicationcontrollers" "resourcequotas" "daemonsets" \
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"deployments" "replicasets" "statefulsets" "jobs" \
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"cronjobs" "poddisruptionbudgets" "serviceaccounts" \
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"networkpolicies" "horizontalpodautoscalers")
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for r in "${RESOURCES[@]}" ; do
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test_user_is_authorized "get $r"
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done
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test_user_is_authorized "create secret generic test-secret --from-file=/tmp/user.txt --from-file=/tmp/pass.txt"
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test_user_is_authorized "delete secret test-secret"
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#admin_k8cluster_edit_user
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export OS_USERNAME="admin_k8cluster_edit_user"
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RESOURCES=("pods" "configmaps" "endpoints" "persistentvolumeclaims" \
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"replicationcontrollers" "secrets" "serviceaccounts" \
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"services" "events" "limitranges" "namespace" \
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"replicationcontrollers" "resourcequotas" "daemonsets" \
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"deployments" "replicasets" "statefulsets" "jobs" \
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"cronjobs" "poddisruptionbudgets" "serviceaccounts" \
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"networkpolicies" "horizontalpodautoscalers")
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for r in "${RESOURCES[@]}" ; do
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test_user_is_authorized "get $r"
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done
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test_user_is_authorized "create secret generic test-secret --from-file=/tmp/user.txt --from-file=/tmp/pass.txt"
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test_user_is_authorized "delete secret test-secret"
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test_user_is_authorized "logs -n openstack $TEST_POD --tail=5"
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test_user_is_unauthorized "create namespace test"
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#admin_k8cluster_view_user
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export OS_USERNAME="admin_k8cluster_view_user"
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RESOURCES=("pods" "configmaps" "endpoints" "persistentvolumeclaims" \
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"replicationcontrollers" "services" "serviceaccounts" \
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"replicationcontrollers" "resourcequotas" "namespaces" \
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"daemonsets" "deployments" "replicasets" "statefulsets" \
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"poddisruptionbudgets" "networkpolicies")
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for r in "${RESOURCES[@]}" ; do
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test_user_is_authorized "get $r"
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done
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test_user_is_authorized "logs -n openstack $TEST_POD --tail=5"
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test_user_is_unauthorized "delete pod $TEST_POD -n openstack"
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test_user_is_unauthorized "create namespace test"
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test_user_is_unauthorized "get secrets"
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test_user_is_unauthorized "create secret generic test-secret --from-file=/tmp/user.txt --from-file=/tmp/pass.txt"
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