mirror of https://github.com/k3s-io/k3s
555 lines
20 KiB
Go
555 lines
20 KiB
Go
/*
|
|
Copyright 2014 Google Inc. All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package validation
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
"strings"
|
|
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
|
|
errs "github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/capabilities"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
|
|
)
|
|
|
|
// ServiceLister is an abstract interface for testing.
|
|
type ServiceLister interface {
|
|
ListServices(api.Context) (*api.ServiceList, error)
|
|
}
|
|
|
|
func validateVolumes(volumes []api.Volume) (util.StringSet, errs.ValidationErrorList) {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allNames := util.StringSet{}
|
|
for i := range volumes {
|
|
vol := &volumes[i] // so we can set default values
|
|
el := errs.ValidationErrorList{}
|
|
if vol.Source == nil {
|
|
// TODO: Enforce that a source is set once we deprecate the implied form.
|
|
vol.Source = &api.VolumeSource{
|
|
EmptyDir: &api.EmptyDir{},
|
|
}
|
|
}
|
|
el = validateSource(vol.Source).Prefix("source")
|
|
if len(vol.Name) == 0 {
|
|
el = append(el, errs.NewFieldRequired("name", vol.Name))
|
|
} else if !util.IsDNSLabel(vol.Name) {
|
|
el = append(el, errs.NewFieldInvalid("name", vol.Name))
|
|
} else if allNames.Has(vol.Name) {
|
|
el = append(el, errs.NewFieldDuplicate("name", vol.Name))
|
|
}
|
|
if len(el) == 0 {
|
|
allNames.Insert(vol.Name)
|
|
} else {
|
|
allErrs = append(allErrs, el.PrefixIndex(i)...)
|
|
}
|
|
}
|
|
return allNames, allErrs
|
|
}
|
|
|
|
func validateSource(source *api.VolumeSource) errs.ValidationErrorList {
|
|
numVolumes := 0
|
|
allErrs := errs.ValidationErrorList{}
|
|
if source.HostDir != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateHostDir(source.HostDir).Prefix("hostDirectory")...)
|
|
}
|
|
if source.EmptyDir != nil {
|
|
numVolumes++
|
|
//EmptyDirs have nothing to validate
|
|
}
|
|
if source.GCEPersistentDisk != nil {
|
|
numVolumes++
|
|
allErrs = append(allErrs, validateGCEPersistentDisk(source.GCEPersistentDisk)...)
|
|
}
|
|
if numVolumes != 1 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("", source))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateHostDir(hostDir *api.HostDir) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if hostDir.Path == "" {
|
|
allErrs = append(allErrs, errs.NewNotFound("path", hostDir.Path))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
var supportedPortProtocols = util.NewStringSet(string(api.ProtocolTCP), string(api.ProtocolUDP))
|
|
|
|
func validateGCEPersistentDisk(PD *api.GCEPersistentDisk) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if PD.PDName == "" {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("PD.PDName", PD.PDName))
|
|
}
|
|
if PD.FSType == "" {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("PD.FSType", PD.FSType))
|
|
}
|
|
if PD.Partition < 0 || PD.Partition > 255 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("PD.Partition", PD.Partition))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validatePorts(ports []api.Port) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allNames := util.StringSet{}
|
|
for i := range ports {
|
|
pErrs := errs.ValidationErrorList{}
|
|
port := &ports[i] // so we can set default values
|
|
if len(port.Name) > 0 {
|
|
if len(port.Name) > 63 || !util.IsDNSLabel(port.Name) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("name", port.Name))
|
|
} else if allNames.Has(port.Name) {
|
|
pErrs = append(pErrs, errs.NewFieldDuplicate("name", port.Name))
|
|
} else {
|
|
allNames.Insert(port.Name)
|
|
}
|
|
}
|
|
if port.ContainerPort == 0 {
|
|
pErrs = append(pErrs, errs.NewFieldRequired("containerPort", port.ContainerPort))
|
|
} else if !util.IsValidPortNum(port.ContainerPort) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("containerPort", port.ContainerPort))
|
|
}
|
|
if port.HostPort != 0 && !util.IsValidPortNum(port.HostPort) {
|
|
pErrs = append(pErrs, errs.NewFieldInvalid("hostPort", port.HostPort))
|
|
}
|
|
if len(port.Protocol) == 0 {
|
|
port.Protocol = "TCP"
|
|
} else if !supportedPortProtocols.Has(strings.ToUpper(string(port.Protocol))) {
|
|
pErrs = append(pErrs, errs.NewFieldNotSupported("protocol", port.Protocol))
|
|
}
|
|
allErrs = append(allErrs, pErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateEnv(vars []api.EnvVar) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for i := range vars {
|
|
vErrs := errs.ValidationErrorList{}
|
|
ev := &vars[i] // so we can set default values
|
|
if len(ev.Name) == 0 {
|
|
vErrs = append(vErrs, errs.NewFieldRequired("name", ev.Name))
|
|
}
|
|
if !util.IsCIdentifier(ev.Name) {
|
|
vErrs = append(vErrs, errs.NewFieldInvalid("name", ev.Name))
|
|
}
|
|
allErrs = append(allErrs, vErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateVolumeMounts(mounts []api.VolumeMount, volumes util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for i := range mounts {
|
|
mErrs := errs.ValidationErrorList{}
|
|
mnt := &mounts[i] // so we can set default values
|
|
if len(mnt.Name) == 0 {
|
|
mErrs = append(mErrs, errs.NewFieldRequired("name", mnt.Name))
|
|
} else if !volumes.Has(mnt.Name) {
|
|
mErrs = append(mErrs, errs.NewFieldNotFound("name", mnt.Name))
|
|
}
|
|
if len(mnt.MountPath) == 0 {
|
|
mErrs = append(mErrs, errs.NewFieldRequired("mountPath", mnt.MountPath))
|
|
}
|
|
allErrs = append(allErrs, mErrs.PrefixIndex(i)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// AccumulateUniquePorts runs an extraction function on each Port of each Container,
|
|
// accumulating the results and returning an error if any ports conflict.
|
|
func AccumulateUniquePorts(containers []api.Container, accumulator map[int]bool, extract func(*api.Port) int) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
for ci := range containers {
|
|
cErrs := errs.ValidationErrorList{}
|
|
ctr := &containers[ci]
|
|
for pi := range ctr.Ports {
|
|
port := extract(&ctr.Ports[pi])
|
|
if port == 0 {
|
|
continue
|
|
}
|
|
if accumulator[port] {
|
|
cErrs = append(cErrs, errs.NewFieldDuplicate("port", port))
|
|
} else {
|
|
accumulator[port] = true
|
|
}
|
|
}
|
|
allErrs = append(allErrs, cErrs.PrefixIndex(ci)...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// checkHostPortConflicts checks for colliding Port.HostPort values across
|
|
// a slice of containers.
|
|
func checkHostPortConflicts(containers []api.Container) errs.ValidationErrorList {
|
|
allPorts := map[int]bool{}
|
|
return AccumulateUniquePorts(containers, allPorts, func(p *api.Port) int { return p.HostPort })
|
|
}
|
|
|
|
func validateExecAction(exec *api.ExecAction) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if len(exec.Command) == 0 {
|
|
allErrors = append(allErrors, errs.NewFieldRequired("command", exec.Command))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateHTTPGetAction(http *api.HTTPGetAction) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if len(http.Path) == 0 {
|
|
allErrors = append(allErrors, errs.NewFieldRequired("path", http.Path))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateHandler(handler *api.Handler) errs.ValidationErrorList {
|
|
allErrors := errs.ValidationErrorList{}
|
|
if handler.Exec != nil {
|
|
allErrors = append(allErrors, validateExecAction(handler.Exec).Prefix("exec")...)
|
|
} else if handler.HTTPGet != nil {
|
|
allErrors = append(allErrors, validateHTTPGetAction(handler.HTTPGet).Prefix("httpGet")...)
|
|
} else {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("", handler))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func validateLifecycle(lifecycle *api.Lifecycle) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if lifecycle.PostStart != nil {
|
|
allErrs = append(allErrs, validateHandler(lifecycle.PostStart).Prefix("postStart")...)
|
|
}
|
|
if lifecycle.PreStop != nil {
|
|
allErrs = append(allErrs, validateHandler(lifecycle.PreStop).Prefix("preStop")...)
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
func validateContainers(containers []api.Container, volumes util.StringSet) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allNames := util.StringSet{}
|
|
for i := range containers {
|
|
cErrs := errs.ValidationErrorList{}
|
|
ctr := &containers[i] // so we can set default values
|
|
capabilities := capabilities.Get()
|
|
if len(ctr.Name) == 0 {
|
|
cErrs = append(cErrs, errs.NewFieldRequired("name", ctr.Name))
|
|
} else if !util.IsDNSLabel(ctr.Name) {
|
|
cErrs = append(cErrs, errs.NewFieldInvalid("name", ctr.Name))
|
|
} else if allNames.Has(ctr.Name) {
|
|
cErrs = append(cErrs, errs.NewFieldDuplicate("name", ctr.Name))
|
|
} else if ctr.Privileged && !capabilities.AllowPrivileged {
|
|
cErrs = append(cErrs, errs.NewFieldForbidden("privileged", ctr.Privileged))
|
|
} else {
|
|
allNames.Insert(ctr.Name)
|
|
}
|
|
if len(ctr.Image) == 0 {
|
|
cErrs = append(cErrs, errs.NewFieldRequired("image", ctr.Image))
|
|
}
|
|
if ctr.Lifecycle != nil {
|
|
cErrs = append(cErrs, validateLifecycle(ctr.Lifecycle).Prefix("lifecycle")...)
|
|
}
|
|
cErrs = append(cErrs, validatePorts(ctr.Ports).Prefix("ports")...)
|
|
cErrs = append(cErrs, validateEnv(ctr.Env).Prefix("env")...)
|
|
cErrs = append(cErrs, validateVolumeMounts(ctr.VolumeMounts, volumes).Prefix("volumeMounts")...)
|
|
allErrs = append(allErrs, cErrs.PrefixIndex(i)...)
|
|
}
|
|
// Check for colliding ports across all containers.
|
|
// TODO(thockin): This really is dependent on the network config of the host (IP per pod?)
|
|
// and the config of the new manifest. But we have not specced that out yet, so we'll just
|
|
// make some assumptions for now. As of now, pods share a network namespace, which means that
|
|
// every Port.HostPort across the whole pod must be unique.
|
|
allErrs = append(allErrs, checkHostPortConflicts(containers)...)
|
|
|
|
return allErrs
|
|
}
|
|
|
|
var supportedManifestVersions = util.NewStringSet("v1beta1", "v1beta2")
|
|
|
|
// ValidateManifest tests that the specified ContainerManifest has valid data.
|
|
// This includes checking formatting and uniqueness. It also canonicalizes the
|
|
// structure by setting default values and implementing any backwards-compatibility
|
|
// tricks.
|
|
// TODO: replaced by ValidatePodSpec
|
|
func ValidateManifest(manifest *api.ContainerManifest) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if len(manifest.Version) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("version", manifest.Version))
|
|
} else if !supportedManifestVersions.Has(strings.ToLower(manifest.Version)) {
|
|
allErrs = append(allErrs, errs.NewFieldNotSupported("version", manifest.Version))
|
|
}
|
|
allVolumes, vErrs := validateVolumes(manifest.Volumes)
|
|
allErrs = append(allErrs, vErrs.Prefix("volumes")...)
|
|
allErrs = append(allErrs, validateContainers(manifest.Containers, allVolumes).Prefix("containers")...)
|
|
allErrs = append(allErrs, validateRestartPolicy(&manifest.RestartPolicy).Prefix("restartPolicy")...)
|
|
return allErrs
|
|
}
|
|
|
|
func validateRestartPolicy(restartPolicy *api.RestartPolicy) errs.ValidationErrorList {
|
|
numPolicies := 0
|
|
allErrors := errs.ValidationErrorList{}
|
|
if restartPolicy.Always != nil {
|
|
numPolicies++
|
|
}
|
|
if restartPolicy.OnFailure != nil {
|
|
numPolicies++
|
|
}
|
|
if restartPolicy.Never != nil {
|
|
numPolicies++
|
|
}
|
|
if numPolicies == 0 {
|
|
restartPolicy.Always = &api.RestartPolicyAlways{}
|
|
}
|
|
if numPolicies > 1 {
|
|
allErrors = append(allErrors, errs.NewFieldInvalid("", restartPolicy))
|
|
}
|
|
return allErrors
|
|
}
|
|
|
|
func ValidatePodState(podState *api.PodState) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList(ValidateManifest(&podState.Manifest)).Prefix("manifest")
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePod tests if required fields in the pod are set.
|
|
func ValidatePod(pod *api.Pod) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if len(pod.Name) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name", pod.Name))
|
|
}
|
|
if !util.IsDNSSubdomain(pod.Namespace) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("namespace", pod.Namespace))
|
|
}
|
|
allErrs = append(allErrs, ValidatePodSpec(&pod.Spec).Prefix("spec")...)
|
|
allErrs = append(allErrs, validateLabels(pod.Labels)...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodSpec tests that the specified PodSpec has valid data.
|
|
// This includes checking formatting and uniqueness. It also canonicalizes the
|
|
// structure by setting default values and implementing any backwards-compatibility
|
|
// tricks.
|
|
func ValidatePodSpec(spec *api.PodSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
allVolumes, vErrs := validateVolumes(spec.Volumes)
|
|
allErrs = append(allErrs, vErrs.Prefix("volumes")...)
|
|
allErrs = append(allErrs, validateContainers(spec.Containers, allVolumes).Prefix("containers")...)
|
|
allErrs = append(allErrs, validateRestartPolicy(&spec.RestartPolicy).Prefix("restartPolicy")...)
|
|
allErrs = append(allErrs, validateLabels(spec.NodeSelector).Prefix("nodeSelector")...)
|
|
return allErrs
|
|
}
|
|
|
|
func validateLabels(labels map[string]string) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
for k := range labels {
|
|
if !util.IsDNS952Label(k) {
|
|
allErrs = append(allErrs, errs.NewFieldNotSupported("label", k))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodUpdate tests to see if the update is legal
|
|
func ValidatePodUpdate(newPod, oldPod *api.Pod) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
if newPod.Name != oldPod.Name {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("name", newPod.Name))
|
|
}
|
|
|
|
if len(newPod.Spec.Containers) != len(oldPod.Spec.Containers) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.containers", newPod.Spec.Containers))
|
|
return allErrs
|
|
}
|
|
pod := *newPod
|
|
pod.Labels = oldPod.Labels
|
|
pod.ResourceVersion = oldPod.ResourceVersion
|
|
// Tricky, we need to copy the container list so that we don't overwrite the update
|
|
var newContainers []api.Container
|
|
for ix, container := range pod.Spec.Containers {
|
|
container.Image = oldPod.Spec.Containers[ix].Image
|
|
newContainers = append(newContainers, container)
|
|
}
|
|
pod.Spec.Containers = newContainers
|
|
if !reflect.DeepEqual(pod.Spec, oldPod.Spec) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.containers", newPod.Spec.Containers))
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateService tests if required fields in the service are set.
|
|
func ValidateService(service *api.Service, lister ServiceLister, ctx api.Context) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if len(service.Name) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name", service.Name))
|
|
} else if !util.IsDNS952Label(service.Name) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("name", service.Name))
|
|
}
|
|
if !util.IsDNSSubdomain(service.Namespace) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("namespace", service.Namespace))
|
|
}
|
|
if !util.IsValidPortNum(service.Spec.Port) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("spec.port", service.Spec.Port))
|
|
}
|
|
if len(service.Spec.Protocol) == 0 {
|
|
service.Spec.Protocol = "TCP"
|
|
} else if !supportedPortProtocols.Has(strings.ToUpper(string(service.Spec.Protocol))) {
|
|
allErrs = append(allErrs, errs.NewFieldNotSupported("spec.protocol", service.Spec.Protocol))
|
|
}
|
|
if labels.Set(service.Spec.Selector).AsSelector().Empty() {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("spec.selector", service.Spec.Selector))
|
|
}
|
|
if service.Spec.CreateExternalLoadBalancer {
|
|
services, err := lister.ListServices(ctx)
|
|
if err != nil {
|
|
allErrs = append(allErrs, errs.NewInternalError(err))
|
|
} else {
|
|
for i := range services.Items {
|
|
if services.Items[i].Name != service.Name &&
|
|
services.Items[i].Spec.CreateExternalLoadBalancer &&
|
|
services.Items[i].Spec.Port == service.Spec.Port {
|
|
allErrs = append(allErrs, errs.NewConflict("service", service.Name, fmt.Errorf("Port: %d is already in use", service.Spec.Port)))
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
allErrs = append(allErrs, validateLabels(service.Labels)...)
|
|
allErrs = append(allErrs, validateLabels(service.Spec.Selector)...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateReplicationController tests if required fields in the replication controller are set.
|
|
func ValidateReplicationController(controller *api.ReplicationController) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if len(controller.Name) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name", controller.Name))
|
|
}
|
|
if !util.IsDNSSubdomain(controller.Namespace) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("namespace", controller.Namespace))
|
|
}
|
|
allErrs = append(allErrs, ValidateReplicationControllerSpec(&controller.Spec).Prefix("spec")...)
|
|
allErrs = append(allErrs, validateLabels(controller.Labels)...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateReplicationControllerSpec tests if required fields in the replication controller spec are set.
|
|
func ValidateReplicationControllerSpec(spec *api.ReplicationControllerSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
|
|
selector := labels.Set(spec.Selector).AsSelector()
|
|
if selector.Empty() {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("selector", spec.Selector))
|
|
}
|
|
if spec.Replicas < 0 {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("replicas", spec.Replicas))
|
|
}
|
|
|
|
if spec.Template == nil {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("template", spec.Template))
|
|
} else {
|
|
labels := labels.Set(spec.Template.Labels)
|
|
if !selector.Matches(labels) {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("template.labels", spec.Template.Labels))
|
|
}
|
|
allErrs = append(allErrs, validateLabels(spec.Template.Labels).Prefix("template.labels")...)
|
|
allErrs = append(allErrs, ValidatePodTemplateSpec(spec.Template).Prefix("template")...)
|
|
// TODO: Provide better error message, current message is not intuitive:
|
|
// e.g. "spec.template.restartPolicy: invalid value '{<nil> <nil> 0xe68308}"
|
|
if spec.Template.Spec.RestartPolicy.OnFailure != nil || spec.Template.Spec.RestartPolicy.Never != nil {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("template.restartPolicy", spec.Template.Spec.RestartPolicy))
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidatePodTemplateSpec validates the spec of a pod template
|
|
func ValidatePodTemplateSpec(spec *api.PodTemplateSpec) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
allErrs = append(allErrs, ValidatePodSpec(&spec.Spec).Prefix("spec")...)
|
|
allErrs = append(allErrs, ValidateReadOnlyPersistentDisks(spec.Spec.Volumes).Prefix("spec.volumes")...)
|
|
return allErrs
|
|
}
|
|
|
|
func ValidateReadOnlyPersistentDisks(volumes []api.Volume) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
for _, vol := range volumes {
|
|
if vol.Source.GCEPersistentDisk != nil {
|
|
if vol.Source.GCEPersistentDisk.ReadOnly == false {
|
|
allErrs = append(allErrs, errs.NewFieldInvalid("GCEPersistentDisk.ReadOnly", false))
|
|
}
|
|
}
|
|
}
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateBoundPod tests if required fields on a bound pod are set.
|
|
func ValidateBoundPod(pod *api.BoundPod) (errors []error) {
|
|
if !util.IsDNSSubdomain(pod.Name) {
|
|
errors = append(errors, errs.NewFieldInvalid("name", pod.Name))
|
|
}
|
|
if !util.IsDNSSubdomain(pod.Namespace) {
|
|
errors = append(errors, errs.NewFieldInvalid("namespace", pod.Namespace))
|
|
}
|
|
containerManifest := &api.ContainerManifest{
|
|
Version: "v1beta2",
|
|
ID: pod.Name,
|
|
UUID: pod.UID,
|
|
Containers: pod.Spec.Containers,
|
|
Volumes: pod.Spec.Volumes,
|
|
RestartPolicy: pod.Spec.RestartPolicy,
|
|
}
|
|
if errs := ValidateManifest(containerManifest); len(errs) != 0 {
|
|
errors = append(errors, errs...)
|
|
}
|
|
return errors
|
|
}
|
|
|
|
// ValidateMinion tests if required fields in the minion are set.
|
|
func ValidateMinion(minion *api.Minion) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
if len(minion.Name) == 0 {
|
|
allErrs = append(allErrs, errs.NewFieldRequired("name", minion.Name))
|
|
}
|
|
allErrs = append(allErrs, validateLabels(minion.Labels)...)
|
|
return allErrs
|
|
}
|
|
|
|
// ValidateMinionUpdate tests to make sure a minion update can be applied. Modifies oldMinion.
|
|
func ValidateMinionUpdate(oldMinion *api.Minion, minion *api.Minion) errs.ValidationErrorList {
|
|
allErrs := errs.ValidationErrorList{}
|
|
// TODO: why we need two labels for minion.
|
|
oldMinion.Labels = minion.Labels
|
|
oldMinion.ObjectMeta.Labels = minion.ObjectMeta.Labels
|
|
if !reflect.DeepEqual(oldMinion, minion) {
|
|
allErrs = append(allErrs, fmt.Errorf("Update contains more than labels changes"))
|
|
}
|
|
return allErrs
|
|
}
|