Merge pull request #57106 from JulienBalestra/kubelet-update-local-pods
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Kubelet status manager sync the status of local Pods
**What this PR does / why we need it**:
In the kubelet, when using `--pod-manifest-path` the kubelet creates static pods but doesn't update the status accordingly in the `PodList`.
This PR fixes the incorrect status of each Pod in the kubelet's `PodList`.
This is the setup used to reproduce the issue:
**manifest**:
```bash
cat ~/kube/staticpod.yaml
```
```yaml
apiVersion: v1
kind: Pod
metadata:
labels:
app: nginx
name: nginx
namespace: default
spec:
hostNetwork: true
containers:
- name: nginx
image: nginx:latest
imagePullPolicy: IfNotPresent
volumeMounts:
- name: os-release
mountPath: /usr/share/nginx/html/index.html
readOnly: true
volumes:
- name: os-release
hostPath:
path: /etc/os-release
```
**kubelet**:
```bash
~/go/src/k8s.io/kubernetes/_output/bin/kubelet --pod-manifest-path ~/kube/ --cloud-provider="" --register-node --kubeconfig kubeconfig.yaml
```
You can observe this by querying the kubelet API `/pods`:
```bash
curl -s 127.0.0.1:10255/pods | jq .
```
```json
{
"kind": "PodList",
"apiVersion": "v1",
"metadata": {},
"items": [
{
"metadata": {
"name": "nginx-nodeName",
"namespace": "default",
"selfLink": "/api/v1/namespaces/default/pods/nginx-nodeName",
"uid": "0fdfa64c73d9de39a9e5c05ef7967e72",
"creationTimestamp": null,
"labels": {
"app": "nginx"
},
"annotations": {
"kubernetes.io/config.hash": "0fdfa64c73d9de39a9e5c05ef7967e72",
"kubernetes.io/config.seen": "2017-12-12T18:42:46.088157195+01:00",
"kubernetes.io/config.source": "file"
}
},
"spec": {
"volumes": [
{
"name": "os-release",
"hostPath": {
"path": "/etc/os-release",
"type": ""
}
}
],
"containers": [
{
"name": "nginx",
"image": "nginx:latest",
"resources": {},
"volumeMounts": [
{
"name": "os-release",
"readOnly": true,
"mountPath": "/usr/share/nginx/html/index.html"
}
],
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"imagePullPolicy": "IfNotPresent"
}
],
"restartPolicy": "Always",
"terminationGracePeriodSeconds": 30,
"dnsPolicy": "ClusterFirst",
"nodeName": "nodeName",
"hostNetwork": true,
"securityContext": {},
"schedulerName": "default-scheduler",
"tolerations": [
{
"operator": "Exists",
"effect": "NoExecute"
}
]
},
"status": {
"phase": "Pending",
"conditions": [
{
"type": "PodScheduled",
"status": "True",
"lastProbeTime": null,
"lastTransitionTime": "2017-12-12T17:42:51Z"
}
]
}
}
]
}
```
The status of the nginx `Pod` will remain in **Pending** state phase.
```bash
curl -I 127.0.0.1
HTTP/1.1 200 OK
```
It's reported as expected on the apiserver side:
```bash
kubectl get po --all-namespaces -w
NAMESPACE NAME READY STATUS RESTARTS AGE
default nginx-nodeName 0/1 Pending 0 0s
default nginx-nodeName 1/1 Running 0 2s
```
It doesn't work either with a standalone kubelet:
```bash
~/go/src/k8s.io/kubernetes/_output/bin/kubelet --pod-manifest-path ~/kube/ --cloud-provider="" --register-node false
```
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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