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 }