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nonroot.go
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nonroot.go
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package user
import (
"fmt"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/kubernetes/pkg/api"
securityapi "github.com/openshift/origin/pkg/security/apis/security"
)
type nonRoot struct{}
var _ RunAsUserSecurityContextConstraintsStrategy = &nonRoot{}
func NewRunAsNonRoot(options *securityapi.RunAsUserStrategyOptions) (RunAsUserSecurityContextConstraintsStrategy, error) {
return &nonRoot{}, nil
}
// Generate creates the uid based on policy rules. This strategy does return a UID. It assumes
// that the user will specify a UID or the container image specifies a UID.
func (s *nonRoot) Generate(pod *api.Pod, container *api.Container) (*int64, error) {
return nil, nil
}
// Validate ensures that the specified values fall within the range of the strategy. Validation
// of this will pass if either the UID is not set, assuming that the image will provided the UID
// or if the UID is set it is not root. In order to work properly this assumes that the kubelet
// will populate an
func (s *nonRoot) Validate(pod *api.Pod, container *api.Container) field.ErrorList {
allErrs := field.ErrorList{}
securityContextPath := field.NewPath("securityContext")
if container.SecurityContext == nil {
detail := fmt.Sprintf("unable to validate nil security context for container %s", container.Name)
allErrs = append(allErrs, field.Invalid(securityContextPath, container.SecurityContext, detail))
return allErrs
}
if container.SecurityContext.RunAsUser != nil && *container.SecurityContext.RunAsUser == 0 {
detail := fmt.Sprintf("running with the root UID is forbidden by the security context constraints %s", container.Name)
allErrs = append(allErrs, field.Invalid(securityContextPath.Child("runAsUser"), *container.SecurityContext.RunAsUser, detail))
return allErrs
}
return allErrs
}