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Merge pull request kubernetes#2240 from changhyuni/add_label_init_cot…
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…ainter_metric

feat: add restartPolicy to `kube_pod_init_container_info` metric
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k8s-ci-robot committed Dec 19, 2023
2 parents 7324ae5 + 5834d64 commit fde27ec
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Showing 3 changed files with 13 additions and 6 deletions.
2 changes: 1 addition & 1 deletion docs/pod-metrics.md
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Expand Up @@ -36,7 +36,7 @@
| kube_pod_created | Gauge | Unix creation timestamp | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_deletion_timestamp | Gauge | Unix deletion timestamp | seconds | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_restart_policy | Gauge | Describes the restart policy in use by this pod | | `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `type`=&lt;Always\|Never\|OnFailure&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_init_container_info | Gauge | Information about an init container in a pod | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `image`=&lt;image-name&gt; <br> `image_id`=&lt;image-id&gt; <br> `image_spec`=&lt;image-spec&gt; <br> `container_id`=&lt;containerid&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_init_container_info | Gauge | Information about an init container in a pod | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `image`=&lt;image-name&gt; <br> `image_id`=&lt;image-id&gt; <br> `image_spec`=&lt;image-spec&gt; <br> `container_id`=&lt;containerid&gt; <br> `uid`=&lt;pod-uid&gt; <br> `restart_policy`=&lt;restart-policy&gt; | STABLE | - |
| kube_pod_init_container_status_waiting | Gauge | Describes whether the init container is currently in waiting state | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
| kube_pod_init_container_status_waiting_reason | Gauge | Describes the reason the init container is currently in waiting state | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `reason`=&lt;container-waiting-reason&gt; <br> `uid`=&lt;pod-uid&gt; | EXPERIMENTAL | - |
| kube_pod_init_container_status_running | Gauge | Describes whether the init container is currently in running state | | `container`=&lt;container-name&gt; <br> `pod`=&lt;pod-name&gt; <br> `namespace`=&lt;pod-namespace&gt; <br> `uid`=&lt;pod-uid&gt; | STABLE | - |
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9 changes: 7 additions & 2 deletions internal/store/pod.go
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Expand Up @@ -677,16 +677,21 @@ func createPodInitContainerInfoFamilyGenerator() generator.FamilyGenerator {
"",
wrapPodFunc(func(p *v1.Pod) *metric.Family {
ms := []*metric.Metric{}
labelKeys := []string{"container", "image_spec", "image", "image_id", "container_id"}
labelKeys := []string{"container", "image_spec", "image", "image_id", "container_id", "restart_policy"}

for _, c := range p.Spec.InitContainers {
restartPolicy := ""
if c.RestartPolicy != nil {
restartPolicy = string(*c.RestartPolicy)
}

for _, cs := range p.Status.InitContainerStatuses {
if cs.Name != c.Name {
continue
}
ms = append(ms, &metric.Metric{
LabelKeys: labelKeys,
LabelValues: []string{cs.Name, c.Image, cs.Image, cs.ImageID, cs.ContainerID},
LabelValues: []string{cs.Name, c.Image, cs.Image, cs.ImageID, cs.ContainerID, restartPolicy},
Value: 1,
})
}
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8 changes: 5 additions & 3 deletions internal/store/pod_test.go
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Expand Up @@ -33,6 +33,7 @@ func TestPodStore(t *testing.T) {
runtimeclass := "foo"
startTime := 1501569018
metav1StartTime := metav1.Unix(int64(startTime), 0)
restartPolicyAlways := v1.ContainerRestartPolicyAlways

cases := []generateMetricsTestCase{
{
Expand Down Expand Up @@ -87,8 +88,9 @@ func TestPodStore(t *testing.T) {
},
InitContainers: []v1.Container{
{
Name: "initContainer",
Image: "k8s.gcr.io/initfoo_spec",
Name: "initContainer",
Image: "k8s.gcr.io/initfoo_spec",
RestartPolicy: &restartPolicyAlways,
},
},
},
Expand Down Expand Up @@ -124,7 +126,7 @@ func TestPodStore(t *testing.T) {
# TYPE kube_pod_init_container_info gauge
kube_pod_container_info{container="container2",container_id="docker://cd456",image_spec="k8s.gcr.io/hyperkube2_spec",image="k8s.gcr.io/hyperkube2",image_id="docker://sha256:bbb",namespace="ns2",pod="pod2",uid="uid2"} 1
kube_pod_container_info{container="container3",container_id="docker://ef789",image_spec="k8s.gcr.io/hyperkube3_spec",image="k8s.gcr.io/hyperkube3",image_id="docker://sha256:ccc",namespace="ns2",pod="pod2",uid="uid2"} 1
kube_pod_init_container_info{container="initContainer",container_id="docker://ef123",image_spec="k8s.gcr.io/initfoo_spec",image="k8s.gcr.io/initfoo",image_id="docker://sha256:wxyz",namespace="ns2",pod="pod2",uid="uid2"} 1`,
kube_pod_init_container_info{container="initContainer",container_id="docker://ef123",image_spec="k8s.gcr.io/initfoo_spec",image="k8s.gcr.io/initfoo",image_id="docker://sha256:wxyz",namespace="ns2",pod="pod2",uid="uid2",restart_policy="Always"} 1`,
MetricNames: []string{"kube_pod_container_info", "kube_pod_init_container_info"},
},
{
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