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Add Ephemeral Containers to the Kubernetes core API

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This commit is contained in:
Lee Verberne
2018-08-09 15:24:23 +02:00
parent c7ffc1cd8c
commit 013f049ce0
20 changed files with 1492 additions and 64 deletions
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74
pkg/api/pod/util_test.go
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@@ -35,6 +35,8 @@ import (
)
func TestVisitContainers(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.EphemeralContainers, true)()
testCases := []struct {
description string
haveSpec *api.PodSpec
@@ -79,6 +81,37 @@ func TestVisitContainers(t *testing.T) {
},
[]string{"i1", "i2", "c1", "c2"},
},
{
"ephemeral containers",
&api.PodSpec{
Containers: []api.Container{
{Name: "c1"},
{Name: "c2"},
},
EphemeralContainers: []api.EphemeralContainer{
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "e1"}},
},
},
[]string{"c1", "c2", "e1"},
},
{
"all container types",
&api.PodSpec{
Containers: []api.Container{
{Name: "c1"},
{Name: "c2"},
},
InitContainers: []api.Container{
{Name: "i1"},
{Name: "i2"},
},
EphemeralContainers: []api.EphemeralContainer{
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "e2"}},
},
},
[]string{"i1", "i2", "c1", "c2", "e1", "e2"},
},
{
"dropping fields",
&api.PodSpec{
@@ -90,8 +123,12 @@ func TestVisitContainers(t *testing.T) {
{Name: "i1"},
{Name: "i2", SecurityContext: &api.SecurityContext{}},
},
EphemeralContainers: []api.EphemeralContainer{
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "e1"}},
{EphemeralContainerCommon: api.EphemeralContainerCommon{Name: "e2", SecurityContext: &api.SecurityContext{}}},
},
},
[]string{"i1", "i2", "c1", "c2"},
[]string{"i1", "i2", "c1", "c2", "e1", "e2"},
},
}
@@ -117,10 +154,17 @@ func TestVisitContainers(t *testing.T) {
t.Errorf("VisitContainers() for test case %q: got SecurityContext %#v for init container %v, wanted nil", tc.description, c.SecurityContext, c.Name)
}
}
for _, c := range tc.haveSpec.EphemeralContainers {
if c.SecurityContext != nil {
t.Errorf("VisitContainers() for test case %q: got SecurityContext %#v for ephemeral container %v, wanted nil", tc.description, c.SecurityContext, c.Name)
}
}
}
}
func TestPodSecrets(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.EphemeralContainers, true)()
// Stub containing all possible secret references in a pod.
// The names of the referenced secrets match struct paths detected by reflection.
pod := &api.Pod{
@@ -195,6 +239,17 @@ func TestPodSecrets(t *testing.T) {
CSI: &api.CSIVolumeSource{
NodePublishSecretRef: &api.LocalObjectReference{
Name: "Spec.Volumes[*].VolumeSource.CSI.NodePublishSecretRef"}}}}},
EphemeralContainers: []api.EphemeralContainer{{
EphemeralContainerCommon: api.EphemeralContainerCommon{
EnvFrom: []api.EnvFromSource{{
SecretRef: &api.SecretEnvSource{
LocalObjectReference: api.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].SecretRef"}}}},
Env: []api.EnvVar{{
ValueFrom: &api.EnvVarSource{
SecretKeyRef: &api.SecretKeySelector{
LocalObjectReference: api.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.SecretKeyRef"}}}}}}}},
},
}
extractedNames := sets.NewString()
@@ -212,6 +267,8 @@ func TestPodSecrets(t *testing.T) {
expectedSecretPaths := sets.NewString(
"Spec.Containers[*].EnvFrom[*].SecretRef",
"Spec.Containers[*].Env[*].ValueFrom.SecretKeyRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].SecretRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.SecretKeyRef",
"Spec.ImagePullSecrets",
"Spec.InitContainers[*].EnvFrom[*].SecretRef",
"Spec.InitContainers[*].Env[*].ValueFrom.SecretKeyRef",
@@ -290,6 +347,8 @@ func collectResourcePaths(t *testing.T, resourcename string, path *field.Path, n
}
func TestPodConfigmaps(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.EphemeralContainers, true)()
// Stub containing all possible ConfigMap references in a pod.
// The names of the referenced ConfigMaps match struct paths detected by reflection.
pod := &api.Pod{
@@ -304,6 +363,17 @@ func TestPodConfigmaps(t *testing.T) {
ConfigMapKeyRef: &api.ConfigMapKeySelector{
LocalObjectReference: api.LocalObjectReference{
Name: "Spec.Containers[*].Env[*].ValueFrom.ConfigMapKeyRef"}}}}}}},
EphemeralContainers: []api.EphemeralContainer{{
EphemeralContainerCommon: api.EphemeralContainerCommon{
EnvFrom: []api.EnvFromSource{{
ConfigMapRef: &api.ConfigMapEnvSource{
LocalObjectReference: api.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].ConfigMapRef"}}}},
Env: []api.EnvVar{{
ValueFrom: &api.EnvVarSource{
ConfigMapKeyRef: &api.ConfigMapKeySelector{
LocalObjectReference: api.LocalObjectReference{
Name: "Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.ConfigMapKeyRef"}}}}}}}},
InitContainers: []api.Container{{
EnvFrom: []api.EnvFromSource{{
ConfigMapRef: &api.ConfigMapEnvSource{
@@ -338,6 +408,8 @@ func TestPodConfigmaps(t *testing.T) {
expectedPaths := sets.NewString(
"Spec.Containers[*].EnvFrom[*].ConfigMapRef",
"Spec.Containers[*].Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.EnvFrom[*].ConfigMapRef",
"Spec.EphemeralContainers[*].EphemeralContainerCommon.Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.InitContainers[*].EnvFrom[*].ConfigMapRef",
"Spec.InitContainers[*].Env[*].ValueFrom.ConfigMapKeyRef",
"Spec.Volumes[*].VolumeSource.Projected.Sources[*].ConfigMap",