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 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 filterInvalidPods(pods []api.BoundPod, source string) (filtered []*api.BoundPod) {
names := util.StringSet{}
for i := range pods {
pod := &pods[i]
var errlist []error
if errs := validation.ValidateBoundPod(pod); len(errs) != 0 {
errlist = append(errlist, errs...)
// If validation fails, don't trust it any further -
// even Name could be bad.
} else {
name := podUniqueName(pod)
if names.Has(name) {
errlist = append(errlist, apierrs.NewFieldDuplicate("name", pod.Name))
} else {
names.Insert(name)
}
}
if len(errlist) > 0 {
name := bestPodIdentString(pod)
err := utilerrors.NewAggregate(errlist)
glog.Warningf("Pod[%d] (%s) from %s failed validation, ignoring: %v", i+1, name, source, err)
record.Eventf(pod, "failedValidation", "Error validating pod %s from %s, ignoring: %v", name, source, err)
continue
}
filtered = append(filtered, pod)
}
return
}
func validateContainers(containers []api.Container, volumes util.StringSet) errs.ErrorList {
allErrs := errs.ErrorList{}
allNames := util.StringSet{}
for i := range containers {
cErrs := errs.ErrorList{}
ctr := &containers[i] // so we can set default values
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 {
allNames.Insert(ctr.Name)
}
if len(ctr.Image) == 0 {
cErrs = append(cErrs, errs.NewFieldRequired("image", ctr.Image))
}
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
}
func validatePorts(ports []api.Port) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
allNames := util.StringSet{}
for i, port := range ports {
pErrs := errs.ValidationErrorList{}
if len(port.Name) > 0 {
if len(port.Name) > util.DNS1123LabelMaxLength || !util.IsDNSLabel(port.Name) {
pErrs = append(pErrs, errs.NewFieldInvalid("name", port.Name, dnsLabelErrorMsg))
} 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.NewFieldInvalid("containerPort", port.ContainerPort, portRangeErrorMsg))
} else if !util.IsValidPortNum(port.ContainerPort) {
pErrs = append(pErrs, errs.NewFieldInvalid("containerPort", port.ContainerPort, portRangeErrorMsg))
}
if port.HostPort != 0 && !util.IsValidPortNum(port.HostPort) {
pErrs = append(pErrs, errs.NewFieldInvalid("hostPort", port.HostPort, portRangeErrorMsg))
}
if len(port.Protocol) == 0 {
pErrs = append(pErrs, errs.NewFieldRequired("protocol", port.Protocol))
} 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 validateContainers(containers []api.Container, volumes util.StringSet) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
if len(containers) == 0 {
return append(allErrs, errs.NewFieldRequired(""))
}
allNames := util.StringSet{}
for i, ctr := range containers {
cErrs := errs.ValidationErrorList{}
capabilities := capabilities.Get()
if len(ctr.Name) == 0 {
cErrs = append(cErrs, errs.NewFieldRequired("name"))
} else if !util.IsDNS1123Label(ctr.Name) {
cErrs = append(cErrs, errs.NewFieldInvalid("name", ctr.Name, dns1123LabelErrorMsg))
} 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"))
}
if ctr.Lifecycle != nil {
cErrs = append(cErrs, validateLifecycle(ctr.Lifecycle).Prefix("lifecycle")...)
}
cErrs = append(cErrs, validateProbe(ctr.LivenessProbe).Prefix("livenessProbe")...)
cErrs = append(cErrs, validateProbe(ctr.ReadinessProbe).Prefix("readinessProbe")...)
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")...)
cErrs = append(cErrs, validatePullPolicy(&ctr).Prefix("pullPolicy")...)
cErrs = append(cErrs, validateResourceRequirements(&ctr).Prefix("resources")...)
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
}
// 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, ctr := range containers {
cErrs := errs.ValidationErrorList{}
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
}
func filterInvalidPods(pods []kubelet.Pod, source string) (filtered []*kubelet.Pod) {
names := util.StringSet{}
for i := range pods {
var errors []error
if names.Has(pods[i].Name) {
errors = append(errors, apierrs.NewFieldDuplicate("name", pods[i].Name))
} else {
names.Insert(pods[i].Name)
}
if errs := kubelet.ValidatePod(&pods[i]); len(errs) != 0 {
errors = append(errors, errs...)
}
if len(errors) > 0 {
glog.Warningf("Pod %d from %s failed validation, ignoring: %v", i+1, source, errors)
continue
}
filtered = append(filtered, &pods[i])
}
return
}
func validateVolumes(volumes []api.Volume) (util.StringSet, errs.ValidationErrorList) {
allErrs := errs.ValidationErrorList{}
allNames := util.StringSet{}
for i, vol := range volumes {
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, dnsLabelErrorMsg))
} 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
}
