Ejemplo n.º 1
0
// Create registers a given new PodSecurityPolicyReview instance to r.registry.
func (r *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
	pspr, ok := obj.(*securityapi.PodSecurityPolicyReview)
	if !ok {
		return nil, kapierrors.NewBadRequest(fmt.Sprintf("not a PodSecurityPolicyReview: %#v", obj))
	}
	if errs := securityvalidation.ValidatePodSecurityPolicyReview(pspr); len(errs) > 0 {
		return nil, kapierrors.NewInvalid(kapi.Kind("PodSecurityPolicyReview"), "", errs)
	}
	ns, ok := kapi.NamespaceFrom(ctx)
	if !ok {
		return nil, kapierrors.NewBadRequest("namespace parameter required.")
	}
	serviceAccounts, err := getServiceAccounts(pspr.Spec, r.saCache, ns)
	if err != nil {
		return nil, kapierrors.NewBadRequest(err.Error())
	}

	if len(serviceAccounts) == 0 {
		glog.Errorf("No service accounts for namespace %s", ns)
		return nil, kapierrors.NewBadRequest(fmt.Sprintf("unable to find ServiceAccount for namespace: %s", ns))
	}

	errs := []error{}
	newStatus := securityapi.PodSecurityPolicyReviewStatus{}
	for _, sa := range serviceAccounts {
		userInfo := serviceaccount.UserInfo(ns, sa.Name, "")
		saConstraints, err := r.sccMatcher.FindApplicableSCCs(userInfo)
		if err != nil {
			errs = append(errs, fmt.Errorf("unable to find SecurityContextConstraints for ServiceAccount %s: %v", sa.Name, err))
			continue
		}
		oscc.DeduplicateSecurityContextConstraints(saConstraints)
		sort.Sort(oscc.ByPriority(saConstraints))
		var namespace *kapi.Namespace
		for _, constraint := range saConstraints {
			var (
				provider kscc.SecurityContextConstraintsProvider
				err      error
			)
			pspsrs := securityapi.PodSecurityPolicySubjectReviewStatus{}
			if provider, namespace, err = oscc.CreateProviderFromConstraint(ns, namespace, constraint, r.client); err != nil {
				errs = append(errs, fmt.Errorf("unable to create provider for service account %s: %v", sa.Name, err))
				continue
			}
			_, err = podsecuritypolicysubjectreview.FillPodSecurityPolicySubjectReviewStatus(&pspsrs, provider, pspr.Spec.Template.Spec, constraint)
			if err != nil {
				glog.Errorf("unable to fill PodSecurityPolicyReviewStatus from constraint %v", err)
				continue
			}
			sapsprs := securityapi.ServiceAccountPodSecurityPolicyReviewStatus{pspsrs, sa.Name}
			newStatus.AllowedServiceAccounts = append(newStatus.AllowedServiceAccounts, sapsprs)
		}
	}
	if len(errs) > 0 {
		return nil, kapierrors.NewBadRequest(fmt.Sprintf("%s", kerrors.NewAggregate(errs)))
	}
	pspr.Status = newStatus
	return pspr, nil
}
Ejemplo n.º 2
0
// Create registers a given new PodSecurityPolicySubjectReview instance to r.registry.
func (r *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
	pspsr, ok := obj.(*securityapi.PodSecurityPolicySubjectReview)
	if !ok {
		return nil, kapierrors.NewBadRequest(fmt.Sprintf("not a PodSecurityPolicySubjectReview: %#v", obj))
	}

	ns, ok := kapi.NamespaceFrom(ctx)
	if !ok {
		return nil, kapierrors.NewBadRequest("namespace parameter required.")
	}

	if errs := securityvalidation.ValidatePodSecurityPolicySubjectReview(pspsr); len(errs) > 0 {
		return nil, kapierrors.NewInvalid(kapi.Kind("PodSecurityPolicySubjectReview"), "", errs)
	}

	userInfo := &user.DefaultInfo{Name: pspsr.Spec.User, Groups: pspsr.Spec.Groups}
	matchedConstraints, err := r.sccMatcher.FindApplicableSCCs(userInfo)
	if err != nil {
		return nil, kapierrors.NewBadRequest(fmt.Sprintf("unable to find SecurityContextConstraints: %v", err))
	}

	saName := pspsr.Spec.Template.Spec.ServiceAccountName
	if len(saName) > 0 {
		saUserInfo := serviceaccount.UserInfo(ns, saName, "")
		saConstraints, err := r.sccMatcher.FindApplicableSCCs(saUserInfo)
		if err != nil {
			return nil, kapierrors.NewBadRequest(fmt.Sprintf("unable to find SecurityContextConstraints: %v", err))
		}
		matchedConstraints = append(matchedConstraints, saConstraints...)
	}
	oscc.DeduplicateSecurityContextConstraints(matchedConstraints)
	sort.Sort(oscc.ByPriority(matchedConstraints))
	var namespace *kapi.Namespace
	for _, constraint := range matchedConstraints {
		var (
			provider kscc.SecurityContextConstraintsProvider
			err      error
		)
		if provider, namespace, err = oscc.CreateProviderFromConstraint(ns, namespace, constraint, r.client); err != nil {
			glog.Errorf("Unable to create provider for constraint: %v", err)
			continue
		}
		filled, err := FillPodSecurityPolicySubjectReviewStatus(&pspsr.Status, provider, pspsr.Spec.Template.Spec, constraint)
		if err != nil {
			glog.Errorf("unable to fill PodSecurityPolicySubjectReviewStatus from constraint %v", err)
			continue
		}
		if filled {
			return pspsr, nil
		}
	}
	return pspsr, nil
}