control plane components share global DefaultFeatureGate/DefaultMutableFeatureGate variables
See also:
9497222ae2..db342010f4
Signed-off-by: Michael Fritch <mfritch@suse.com>
CSI is used by both the kubelet and kube-controller-manager. Both
components will initialize the csiPlugin with different VolumeHost
objects. The csiPlugin will then assign a global variable for
the node info manager. It is then possible that the kubelet gets
the credentials of the kube-controller-manager and that will cause
CSI to fail.
Automated cherry pick of #131950: PodStartSLIDuration should exclude init container runtime, image pulling time, stateful pods, not immediately schedulable pods
FetchInitConfigurationFromCluster always called SetAPIEndpointDynamicDefaults,
which invokes ChooseAPIServerBindAddress and requires a default route on the
host. Worker nodes joining the cluster don't need a LocalAPIEndpoint and may
legitimately have no default route, causing kubeadm join to fail with:
```
unable to fetch the kubeadm-config ConfigMap: unable to select an IP from
default routes.
```
Add a skipAPIEndpoint parameter to SetInitDynamicDefaults and pass
`!getAPIEndpoint` from FetchInitConfigurationFromCluster, so the endpoint
defaulter is bypassed when the caller did not request the endpoint (worker
join, non-control-plane reset/certs/upgrade paths).
Signed-off-by: Seena Fallah <seenafallah@gmail.com>
Historicaly the kubeadm clients have used the 'admin.conf'
and 'super-admin.conf' directly, which makes all API calls
go trough the CPE (control plane endpoint). This can create
problems for scenarios when the LB is provisioned only after
'init' starts the kube-apiserver.
Instead of using the '.conf' as they are, modify them
in memory to point to the LAE (localAPIEndpoint).
This was already done by the WaitControlPlaneClient for
the WaitControlPlane phase, which required it. This separate
client is no longer needed.
However, do use a unmodified kubeconfig to the init phase
bootstrap-token since this is the phase that creates
the cluster-info CM and for that we need the original CPE
server address.
Periodic full-syncs are just reconcile loops just in case somehow
the dataplane has drifted, however, they have an important cost on large
clusters.
We can avoid to perform full-sync if kube-proxy is in the "largecluster"
mode, we are already doing some optimization, so it is reasonable to
avoid the penalty of a full sync for a "just in case" operation.
Signed-off-by: Antonio Ojea <aojea@google.com>
handleSchedulingFailure can refresh podInfo from the informer before AddUnschedulableIfNotPresent. A delete and recreate with the same name may change the Pod UID while inFlightPods still tracks the UID from Pop, so Done and queueing-hint lookups must use that in-flight UID.
Add an explicit in-flight UID parameter, thread it through queueing-hint lookups, cover the same-name recreation case with a regression test, and check the returned error in updated test call sites.
