// ensureNamespaceServiceAccountRoleBindings initializes roles for service accounts in the namespace
func (c *MasterConfig) ensureNamespaceServiceAccountRoleBindings(namespace *kapi.Namespace) {
const ServiceAccountRolesInitializedAnnotation = "openshift.io/sa.initialized-roles"
// Short-circuit if we're already initialized
if namespace.Annotations[ServiceAccountRolesInitializedAnnotation] == "true" {
return
}
hasErrors := false
for _, binding := range bootstrappolicy.GetBootstrapServiceAccountProjectRoleBindings(namespace.Name) {
addRole := &policy.RoleModificationOptions{
RoleName: binding.RoleRef.Name,
RoleNamespace: binding.RoleRef.Namespace,
RoleBindingAccessor: policy.NewLocalRoleBindingAccessor(namespace.Name, c.ServiceAccountRoleBindingClient()),
Subjects: binding.Subjects,
}
if err := addRole.AddRole(); err != nil {
glog.Errorf("Could not add service accounts to the %v role in the %q namespace: %v\n", binding.RoleRef.Name, namespace.Name, err)
hasErrors = true
}
}
// If we had errors, don't register initialization so we can try again
if hasErrors {
return
}
if namespace.Annotations == nil {
namespace.Annotations = map[string]string{}
}
namespace.Annotations[ServiceAccountRolesInitializedAnnotation] = "true"
if _, err := c.KubeClient().Namespaces().Update(namespace); err != nil {
glog.Errorf("Error recording adding service account roles to %q namespace: %v", namespace.Name, err)
}
}
// ensureDefaultNamespaceServiceAccountRoles initializes roles for service accounts in the default namespace
func (c *MasterConfig) ensureDefaultNamespaceServiceAccountRoles() {
const ServiceAccountRolesInitializedAnnotation = "openshift.io/sa.initialized-roles"
// Wait for the default namespace
var defaultNamespace *kapi.Namespace
for i := 0; i < 30; i++ {
ns, err := c.KubeClient().Namespaces().Get(kapi.NamespaceDefault)
if err == nil {
defaultNamespace = ns
break
}
if kapierror.IsNotFound(err) {
time.Sleep(time.Second)
continue
}
glog.Errorf("Error adding service account roles to default namespace: %v", err)
return
}
if defaultNamespace == nil {
glog.Errorf("Default namespace not found, could not initialize default service account roles")
return
}
// Short-circuit if we're already initialized
if defaultNamespace.Annotations[ServiceAccountRolesInitializedAnnotation] == "true" {
return
}
hasErrors := false
for _, binding := range bootstrappolicy.GetBootstrapServiceAccountProjectRoleBindings(kapi.NamespaceDefault) {
addRole := &policy.RoleModificationOptions{
RoleName: binding.RoleRef.Name,
RoleNamespace: binding.RoleRef.Namespace,
RoleBindingAccessor: policy.NewLocalRoleBindingAccessor(kapi.NamespaceDefault, c.ServiceAccountRoleBindingClient()),
Users: binding.Users.List(),
Groups: binding.Groups.List(),
}
if err := addRole.AddRole(); err != nil {
glog.Errorf("Could not add service accounts to the %v role in the %v namespace: %v\n", binding.RoleRef.Name, kapi.NamespaceDefault, err)
hasErrors = true
}
}
// If we had errors, don't register initialization so we can try again
if !hasErrors {
if defaultNamespace.Annotations == nil {
defaultNamespace.Annotations = map[string]string{}
}
defaultNamespace.Annotations[ServiceAccountRolesInitializedAnnotation] = "true"
if _, err := c.KubeClient().Namespaces().Update(defaultNamespace); err != nil {
glog.Errorf("Error recording adding service account roles to default namespace: %v", err)
}
}
}
// Next processes a changed namespace and tries to allocate a uid range for it. If it is
// successful, an mcs label corresponding to the relative position of the range is also
// set.
func (c *Allocation) Next(ns *kapi.Namespace) error {
tx := &tx{}
defer tx.Rollback()
if _, ok := ns.Annotations[security.UIDRangeAnnotation]; ok {
return nil
}
if ns.Annotations == nil {
ns.Annotations = make(map[string]string)
}
// do uid allocation
block, err := c.uid.AllocateNext()
if err != nil {
return err
}
tx.Add(func() error { return c.uid.Release(block) })
ns.Annotations[security.UIDRangeAnnotation] = block.String()
ns.Annotations[security.SupplementalGroupsAnnotation] = block.String()
if _, ok := ns.Annotations[security.MCSAnnotation]; !ok {
if label := c.mcs(block); label != nil {
ns.Annotations[security.MCSAnnotation] = label.String()
}
}
// TODO: could use a client.GuaranteedUpdate/Merge function
for i := 0; i < retryCount; i++ {
_, err := c.client.Update(ns)
if err == nil {
// commit and exit
tx.Commit()
return nil
}
if errors.IsNotFound(err) {
return nil
}
if !errors.IsConflict(err) {
return err
}
newNs, err := c.client.Get(ns.Name)
if errors.IsNotFound(err) {
return nil
}
if err != nil {
return err
}
if changedAndSetAnnotations(ns, newNs) {
return nil
}
// try again
if newNs.Annotations == nil {
newNs.Annotations = make(map[string]string)
}
newNs.Annotations[security.UIDRangeAnnotation] = ns.Annotations[security.UIDRangeAnnotation]
newNs.Annotations[security.SupplementalGroupsAnnotation] = ns.Annotations[security.SupplementalGroupsAnnotation]
newNs.Annotations[security.MCSAnnotation] = ns.Annotations[security.MCSAnnotation]
ns = newNs
}
return fmt.Errorf("unable to allocate security info on %q after %d retries", ns.Name, retryCount)
}
