// GetRequestAttributes populates authorizer attributes for the requests to the kubelet API.
// Default attributes are: {apiVersion=v1,verb=<http verb from request>,resource=nodes,name=<node name>,subresource=proxy}
// More specific verb/resource is set for the following request patterns:
// /stats/* => verb=<api verb from request>, resource=nodes, name=<node name>, subresource=stats
// /metrics/* => verb=<api verb from request>, resource=nodes, name=<node name>, subresource=metrics
// /logs/* => verb=<api verb from request>, resource=nodes, name=<node name>, subresource=log
// /spec/* => verb=<api verb from request>, resource=nodes, name=<node name>, subresource=spec
func (n nodeAuthorizerAttributesGetter) GetRequestAttributes(u user.Info, r *http.Request) authorizer.Attributes {
apiVerb := ""
switch r.Method {
case "POST":
apiVerb = "create"
case "GET":
apiVerb = "get"
case "PUT":
apiVerb = "update"
case "PATCH":
apiVerb = "patch"
case "DELETE":
apiVerb = "delete"
}
requestPath := r.URL.Path
// Default attributes mirror the API attributes that would allow this access to the kubelet API
attrs := authorizer.AttributesRecord{
User: u,
Verb: apiVerb,
Namespace: "",
APIGroup: "",
APIVersion: "v1",
Resource: "nodes",
Subresource: "proxy",
Name: string(n.nodeName),
ResourceRequest: true,
Path: requestPath,
}
// Override subresource for specific paths
// This allows subdividing access to the kubelet API
switch {
case isSubpath(requestPath, statsPath):
attrs.Subresource = "stats"
case isSubpath(requestPath, metricsPath):
attrs.Subresource = "metrics"
case isSubpath(requestPath, logsPath):
// "log" to match other log subresources (pods/log, etc)
attrs.Subresource = "log"
case isSubpath(requestPath, specPath):
attrs.Subresource = "spec"
}
glog.V(5).Infof("Node request attributes: attrs=%#v", attrs)
return attrs
}
func GetAuthorizerAttributes(ctx request.Context) (authorizer.Attributes, error) {
attribs := authorizer.AttributesRecord{}
user, ok := request.UserFrom(ctx)
if ok {
attribs.User = user
}
requestInfo, found := request.RequestInfoFrom(ctx)
if !found {
return nil, errors.New("no RequestInfo found in the context")
}
// Start with common attributes that apply to resource and non-resource requests
attribs.ResourceRequest = requestInfo.IsResourceRequest
attribs.Path = requestInfo.Path
attribs.Verb = requestInfo.Verb
attribs.APIGroup = requestInfo.APIGroup
attribs.APIVersion = requestInfo.APIVersion
attribs.Resource = requestInfo.Resource
attribs.Subresource = requestInfo.Subresource
attribs.Namespace = requestInfo.Namespace
attribs.Name = requestInfo.Name
return &attribs, nil
}