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Merge pull request #14358 from derekwaynecarr/fix_request_defaulting

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Default resources.requests only for Pod resources
This commit is contained in:
Eric Tune 2015-09-24 13:43:44 -07:00
commit 33c4c50c1e
2 changed files with 89 additions and 13 deletions
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31
pkg/api/v1/defaults.go
View File

@ -93,6 +93,24 @@ func addDefaultingFuncs() {
} }
} }
}, },
func(obj *Pod) {
// If limits are specified, but requests are not, default requests to limits
// This is done here rather than a more specific defaulting pass on ResourceRequirements
// because we only want this defaulting semantic to take place on a Pod and not a PodTemplate
for i := range obj.Spec.Containers {
// set requests to limits if requests are not specified, but limits are
if obj.Spec.Containers[i].Resources.Limits != nil {
if obj.Spec.Containers[i].Resources.Requests == nil {
obj.Spec.Containers[i].Resources.Requests = make(ResourceList)
}
for key, value := range obj.Spec.Containers[i].Resources.Limits {
if _, exists := obj.Spec.Containers[i].Resources.Requests[key]; !exists {
obj.Spec.Containers[i].Resources.Requests[key] = *(value.Copy())
}
}
}
}
},
func(obj *PodSpec) { func(obj *PodSpec) {
if obj.DNSPolicy == "" { if obj.DNSPolicy == "" {
obj.DNSPolicy = DNSClusterFirst obj.DNSPolicy = DNSClusterFirst
@ -165,19 +183,6 @@ func addDefaultingFuncs() {
obj.APIVersion = "v1" obj.APIVersion = "v1"
} }
}, },
func(obj *ResourceRequirements) {
// Set requests to limits if requests are not specified (but limits are).
if obj.Limits != nil {
if obj.Requests == nil {
obj.Requests = make(ResourceList)
}
for key, value := range obj.Limits {
if _, exists := obj.Requests[key]; !exists {
obj.Requests[key] = *(value.Copy())
}
}
}
},
func(obj *LimitRangeItem) { func(obj *LimitRangeItem) {
// for container limits, we apply default values // for container limits, we apply default values
if obj.Type == LimitTypeContainer { if obj.Type == LimitTypeContainer {

71
pkg/api/v1/defaults_test.go
View File

@ -433,6 +433,77 @@ func TestSetDefaultObjectFieldSelectorAPIVersion(t *testing.T) {
} }
} }
func TestSetDefaultRequestsPod(t *testing.T) {
// verify we default if limits are specified
s := versioned.PodSpec{}
s.Containers = []versioned.Container{
{
Resources: versioned.ResourceRequirements{
Limits: versioned.ResourceList{
versioned.ResourceCPU: resource.MustParse("100m"),
},
},
},
}
pod := &versioned.Pod{
Spec: s,
}
output := roundTrip(t, runtime.Object(pod))
pod2 := output.(*versioned.Pod)
defaultRequest := pod2.Spec.Containers[0].Resources.Requests
requestValue := defaultRequest[versioned.ResourceCPU]
if requestValue.String() != "100m" {
t.Errorf("Expected request cpu: %s, got: %s", "100m", requestValue.String())
}
// verify we do nothing if no limits are specified
s = versioned.PodSpec{}
s.Containers = []versioned.Container{{}}
pod = &versioned.Pod{
Spec: s,
}
output = roundTrip(t, runtime.Object(pod))
pod2 = output.(*versioned.Pod)
defaultRequest = pod2.Spec.Containers[0].Resources.Requests
requestValue = defaultRequest[versioned.ResourceCPU]
if requestValue.String() != "0" {
t.Errorf("Expected 0 request value, got: %s", requestValue.String())
}
}
func TestDefaultRequestIsNotSetForReplicationController(t *testing.T) {
s := versioned.PodSpec{}
s.Containers = []versioned.Container{
{
Resources: versioned.ResourceRequirements{
Limits: versioned.ResourceList{
versioned.ResourceCPU: resource.MustParse("100m"),
},
},
},
}
rc := &versioned.ReplicationController{
Spec: versioned.ReplicationControllerSpec{
Replicas: newInt(3),
Template: &versioned.PodTemplateSpec{
ObjectMeta: versioned.ObjectMeta{
Labels: map[string]string{
"foo": "bar",
},
},
Spec: s,
},
},
}
output := roundTrip(t, runtime.Object(rc))
rc2 := output.(*versioned.ReplicationController)
defaultRequest := rc2.Spec.Template.Spec.Containers[0].Resources.Requests
requestValue := defaultRequest[versioned.ResourceCPU]
if requestValue.String() != "0" {
t.Errorf("Expected 0 request value, got: %s", requestValue.String())
}
}
func TestSetDefaultLimitRangeItem(t *testing.T) { func TestSetDefaultLimitRangeItem(t *testing.T) {
limitRange := &versioned.LimitRange{ limitRange := &versioned.LimitRange{
ObjectMeta: versioned.ObjectMeta{ ObjectMeta: versioned.ObjectMeta{