func TestValidatePodSpec(t *testing.T) {
successCases := []api.PodSpec{
{}, // empty is valid, if not very useful */
{ // Populate basic fields, leave defaults for most.
Volumes: []api.Volume{{Name: "vol"}},
Containers: []api.Container{{Name: "ctr", Image: "image"}},
},
{ // Populate all fields.
Volumes: []api.Volume{
{Name: "vol"},
},
Containers: []api.Container{{Name: "ctr", Image: "image"}},
RestartPolicy: api.RestartPolicy{Always: &api.RestartPolicyAlways{}},
DNSPolicy: api.DNSClusterFirst,
NodeSelector: map[string]string{
"key": "value",
},
Host: "foobar",
},
}
for i := range successCases {
if errs := ValidatePodSpec(&successCases[i]); len(errs) != 0 {
t.Errorf("expected success: %v", errs)
}
}
failureCases := map[string]api.PodSpec{
"bad volume": {
Volumes: []api.Volume{{}},
},
"bad container": {
Containers: []api.Container{{}},
},
"bad DNS policy": {
DNSPolicy: api.DNSPolicy("invalid"),
},
}
for k, v := range failureCases {
if errs := ValidatePodSpec(&v); len(errs) == 0 {
t.Errorf("expected failure for %q", k)
}
}
defaultPod := api.PodSpec{} // all empty fields
if errs := ValidatePodSpec(&defaultPod); len(errs) != 0 {
t.Errorf("expected success: %v", errs)
}
if util.AllPtrFieldsNil(defaultPod.RestartPolicy) {
t.Errorf("expected a default RestartPolicy")
}
if defaultPod.DNSPolicy == "" {
t.Errorf("expected a default DNSPolicy")
}
}
func (plugin *emptyDirPlugin) CanSupport(spec *api.Volume) bool {
if plugin.legacyMode {
// Legacy mode instances can be cleaned up but not created anew.
return false
}
if spec.Source == nil || util.AllPtrFieldsNil(spec.Source) {
return true
}
if spec.Source.EmptyDir != nil {
return true
}
return false
}
func init() {
api.Scheme.AddDefaultingFuncs(
func(obj *Volume) {
if util.AllPtrFieldsNil(&obj.Source) {
obj.Source = VolumeSource{
EmptyDir: &EmptyDirVolumeSource{},
}
}
},
func(obj *Port) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
},
func(obj *Container) {
if obj.ImagePullPolicy == "" {
// TODO(dchen1107): Move ParseImageName code to pkg/util
parts := strings.Split(obj.Image, ":")
// Check image tag
if parts[len(parts)-1] == "latest" {
obj.ImagePullPolicy = PullAlways
} else {
obj.ImagePullPolicy = PullIfNotPresent
}
}
if obj.TerminationMessagePath == "" {
obj.TerminationMessagePath = TerminationMessagePathDefault
}
},
func(obj *RestartPolicy) {
if util.AllPtrFieldsNil(obj) {
obj.Always = &RestartPolicyAlways{}
}
},
func(obj *Service) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
if obj.SessionAffinity == "" {
obj.SessionAffinity = AffinityTypeNone
}
},
func(obj *PodSpec) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
},
func(obj *ContainerManifest) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
},
func(obj *LivenessProbe) {
if obj.TimeoutSeconds == 0 {
obj.TimeoutSeconds = 1
}
},
func(obj *Secret) {
if obj.Type == "" {
obj.Type = SecretTypeOpaque
}
},
func(obj *Endpoints) {
if obj.Protocol == "" {
obj.Protocol = "TCP"
}
},
)
}
func addDefaultingFuncs() {
api.Scheme.AddDefaultingFuncs(
func(obj *ReplicationController) {
var labels map[string]string
if obj.Spec.Template != nil {
labels = obj.Spec.Template.Labels
}
// TODO: support templates defined elsewhere when we support them in the API
if labels != nil {
if len(obj.Spec.Selector) == 0 {
obj.Spec.Selector = labels
}
if len(obj.Labels) == 0 {
obj.Labels = labels
}
}
if obj.Spec.Replicas == nil {
obj.Spec.Replicas = new(int)
*obj.Spec.Replicas = 1
}
},
func(obj *Volume) {
if util.AllPtrFieldsNil(&obj.VolumeSource) {
obj.VolumeSource = VolumeSource{
EmptyDir: &EmptyDirVolumeSource{},
}
}
},
func(obj *ContainerPort) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
},
func(obj *Container) {
if obj.ImagePullPolicy == "" {
// TODO(dchen1107): Move ParseImageName code to pkg/util
parts := strings.Split(obj.Image, ":")
// Check image tag
if parts[len(parts)-1] == "latest" {
obj.ImagePullPolicy = PullAlways
} else {
obj.ImagePullPolicy = PullIfNotPresent
}
}
if obj.TerminationMessagePath == "" {
obj.TerminationMessagePath = TerminationMessagePathDefault
}
},
func(obj *ServiceSpec) {
if obj.SessionAffinity == "" {
obj.SessionAffinity = ServiceAffinityNone
}
if obj.Type == "" {
obj.Type = ServiceTypeClusterIP
}
for i := range obj.Ports {
sp := &obj.Ports[i]
if sp.Protocol == "" {
sp.Protocol = ProtocolTCP
}
if sp.TargetPort == util.NewIntOrStringFromInt(0) || sp.TargetPort == util.NewIntOrStringFromString("") {
sp.TargetPort = util.NewIntOrStringFromInt(sp.Port)
}
}
},
func(obj *PodSpec) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
if obj.RestartPolicy == "" {
obj.RestartPolicy = RestartPolicyAlways
}
if obj.HostNetwork {
defaultHostNetworkPorts(&obj.Containers)
}
},
func(obj *Probe) {
if obj.TimeoutSeconds == 0 {
obj.TimeoutSeconds = 1
}
},
func(obj *Secret) {
if obj.Type == "" {
obj.Type = SecretTypeOpaque
}
},
func(obj *PersistentVolume) {
if obj.Status.Phase == "" {
obj.Status.Phase = VolumePending
}
if obj.Spec.PersistentVolumeReclaimPolicy == "" {
obj.Spec.PersistentVolumeReclaimPolicy = PersistentVolumeReclaimRetain
}
},
func(obj *PersistentVolumeClaim) {
if obj.Status.Phase == "" {
obj.Status.Phase = ClaimPending
}
},
func(obj *Endpoints) {
for i := range obj.Subsets {
ss := &obj.Subsets[i]
for i := range ss.Ports {
ep := &ss.Ports[i]
if ep.Protocol == "" {
ep.Protocol = ProtocolTCP
}
}
}
},
func(obj *HTTPGetAction) {
if obj.Path == "" {
obj.Path = "/"
}
if obj.Scheme == "" {
obj.Scheme = URISchemeHTTP
}
},
func(obj *NamespaceStatus) {
if obj.Phase == "" {
obj.Phase = NamespaceActive
}
},
func(obj *Node) {
if obj.Spec.ExternalID == "" {
obj.Spec.ExternalID = obj.Name
}
},
func(obj *ObjectFieldSelector) {
if obj.APIVersion == "" {
obj.APIVersion = "v1"
}
},
)
}
func init() {
api.Scheme.AddDefaultingFuncs(
func(obj *Volume) {
if util.AllPtrFieldsNil(&obj.VolumeSource) {
obj.VolumeSource = VolumeSource{
EmptyDir: &EmptyDirVolumeSource{},
}
}
},
func(obj *ContainerPort) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
},
func(obj *Container) {
if obj.ImagePullPolicy == "" {
// TODO(dchen1107): Move ParseImageName code to pkg/util
parts := strings.Split(obj.Image, ":")
// Check image tag
if parts[len(parts)-1] == "latest" {
obj.ImagePullPolicy = PullAlways
} else {
obj.ImagePullPolicy = PullIfNotPresent
}
}
if obj.TerminationMessagePath == "" {
obj.TerminationMessagePath = TerminationMessagePathDefault
}
},
func(obj *Service) {
if obj.Spec.Protocol == "" {
obj.Spec.Protocol = ProtocolTCP
}
if obj.Spec.SessionAffinity == "" {
obj.Spec.SessionAffinity = AffinityTypeNone
}
},
func(obj *PodSpec) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
if obj.RestartPolicy == "" {
obj.RestartPolicy = RestartPolicyAlways
}
},
func(obj *Probe) {
if obj.TimeoutSeconds == 0 {
obj.TimeoutSeconds = 1
}
},
func(obj *Secret) {
if obj.Type == "" {
obj.Type = SecretTypeOpaque
}
},
func(obj *Endpoints) {
if obj.Protocol == "" {
obj.Protocol = "TCP"
}
},
func(obj *HTTPGetAction) {
if obj.Path == "" {
obj.Path = "/"
}
},
func(obj *ServiceSpec) {
if obj.ContainerPort.Kind == util.IntstrInt && obj.ContainerPort.IntVal == 0 ||
obj.ContainerPort.Kind == util.IntstrString && obj.ContainerPort.StrVal == "" {
obj.ContainerPort = util.NewIntOrStringFromInt(obj.Port)
}
},
func(obj *NamespaceStatus) {
if obj.Phase == "" {
obj.Phase = NamespaceActive
}
},
)
}
func init() {
api.Scheme.AddDefaultingFuncs(
func(obj *ReplicationController) {
if len(obj.DesiredState.ReplicaSelector) == 0 {
obj.DesiredState.ReplicaSelector = obj.DesiredState.PodTemplate.Labels
}
if len(obj.Labels) == 0 {
obj.Labels = obj.DesiredState.PodTemplate.Labels
}
},
func(obj *Volume) {
if util.AllPtrFieldsNil(&obj.Source) {
glog.Errorf("Defaulting volume source for %v", obj)
obj.Source = VolumeSource{
EmptyDir: &EmptyDirVolumeSource{},
}
}
},
func(obj *ContainerPort) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
},
func(obj *Container) {
if obj.ImagePullPolicy == "" {
// TODO(dchen1107): Move ParseImageName code to pkg/util
parts := strings.Split(obj.Image, ":")
// Check image tag
if parts[len(parts)-1] == "latest" {
obj.ImagePullPolicy = PullAlways
} else {
obj.ImagePullPolicy = PullIfNotPresent
}
}
if obj.TerminationMessagePath == "" {
obj.TerminationMessagePath = TerminationMessagePathDefault
}
},
func(obj *RestartPolicy) {
if util.AllPtrFieldsNil(obj) {
obj.Always = &RestartPolicyAlways{}
}
},
func(obj *Service) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
if obj.SessionAffinity == "" {
obj.SessionAffinity = AffinityTypeNone
}
for i := range obj.Ports {
sp := &obj.Ports[i]
if sp.Protocol == "" {
sp.Protocol = ProtocolTCP
}
if sp.ContainerPort == util.NewIntOrStringFromInt(0) || sp.ContainerPort == util.NewIntOrStringFromString("") {
sp.ContainerPort = util.NewIntOrStringFromInt(sp.Port)
}
}
},
func(obj *PodSpec) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
if obj.HostNetwork {
defaultHostNetworkPorts(&obj.Containers)
}
},
func(obj *ContainerManifest) {
if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst
}
if obj.HostNetwork {
defaultHostNetworkPorts(&obj.Containers)
}
},
func(obj *LivenessProbe) {
if obj.TimeoutSeconds == 0 {
obj.TimeoutSeconds = 1
}
},
func(obj *Secret) {
if obj.Type == "" {
obj.Type = SecretTypeOpaque
}
},
func(obj *Endpoints) {
if obj.Protocol == "" {
obj.Protocol = ProtocolTCP
}
if len(obj.Subsets) == 0 && len(obj.Endpoints) > 0 {
// Must be a legacy-style object - populate
// Subsets from the older fields. Do this the
// simplest way, which is dumb (but valid).
for i := range obj.Endpoints {
host, portStr, err := net.SplitHostPort(obj.Endpoints[i])
if err != nil {
glog.Errorf("failed to SplitHostPort(%q)", obj.Endpoints[i])
}
var tgtRef *ObjectReference
for j := range obj.TargetRefs {
if obj.TargetRefs[j].Endpoint == obj.Endpoints[i] {
tgtRef = &ObjectReference{}
*tgtRef = obj.TargetRefs[j].ObjectReference
}
}
port, err := strconv.Atoi(portStr)
if err != nil {
glog.Errorf("failed to Atoi(%q)", portStr)
}
obj.Subsets = append(obj.Subsets, EndpointSubset{
Addresses: []EndpointAddress{{IP: host, TargetRef: tgtRef}},
Ports: []EndpointPort{{Protocol: obj.Protocol, Port: port}},
})
}
}
for i := range obj.Subsets {
ss := &obj.Subsets[i]
for i := range ss.Ports {
ep := &ss.Ports[i]
if ep.Protocol == "" {
ep.Protocol = ProtocolTCP
}
}
}
},
func(obj *HTTPGetAction) {
if obj.Path == "" {
obj.Path = "/"
}
},
func(obj *NamespaceStatus) {
if obj.Phase == "" {
obj.Phase = NamespaceActive
}
},
func(obj *Minion) {
if obj.ExternalID == "" {
obj.ExternalID = obj.ID
}
},
)
}