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Implement ExternalName in kube-dns
Part of the ongoing saga formerly known as https://github.com/kubernetes/features/issues/33
This is the prelude (first commit) in #30931, spawn into a separate PR to allow building a new kube-dns image before e2e tests (the rest of #30931) are updated.
ExternalName allows kubedns to return CNAME records for external
services. No proxying is involved.
cc @thockin
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change to stderr
`fmt.Fprint(out, "You must specify the type of resource to describe. ", valid_resources)`
change this to stderr.
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skip benchmark in jenkins serial test
This PR changes jenkins-serial.properties to skip benchmark tests (with tag [Benchmark]) in jenkins serial tests. It also add more comments in run_e2e.go.
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Add admission controller for default storage class.
The admission controller adds a default class to PVCs that do not require any
specific class. This way, users (=PVC authors) do not need to care about
storage classes, administrator can configure a default one and all these PVCs
that do not care about class will get the default one.
The marker of default class is annotation "volume.beta.kubernetes.io/storage-class", which must be set to "true" to work. All other values (or missing annotation) makes the class non-default.
Based on @thockin's code, added tests and made it not to reject a PVC when no class is marked as default.
.
@kubernetes/sig-storage
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support Azure data disk volume
This is a WIP of supporting azure data disk volume. Will add test and dynamic provisioning support once #29006 is merged
replace #25915fix#23259
@kubernetes/sig-storage
@colemickens @brendandburns
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Add ScaleExpansion to client v1.4
**What this PR does / why we need it**:
The generated v1.4 did not carry over the complete ScaleExpansion interface. The unversioned client is using this interface and should be in sync with generated client.
**Release note**:
```release-note
NONE
```
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Optimise the ValidateBytes function
The PR optimise the "ValidateBytes" function in factory.go. Too much "if" branches is poor readability, use "switch" to look better.
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fix Openstack provider to allow more than one service port for lbaas v2
This resolves bug #30477 where if a service defines multiple ports for load balancer, the plugin will fail with multiple ports are not supported.
@anguslees @jianhuiz
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Add kubelet --network-plugin-mtu flag for MTU selection
* Add network-plugin-mtu option which lets us pass down a MTU to a network provider (currently processed by kubenet)
* Add a test, and thus make sysctl testable
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Fix path to kubernetes_skew
Previously this was `$(pwd)/kubernetes/../kubernetes_old` this is equivalent to `$(pwd)/kubernetes_old` although we also changed the `old` to `skew` instead.
Fixes https://github.com/kubernetes/kubernetes/issues/31149
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Clarify documentation that new admission control plugin must be imported
```release-note
```
Admission control design doc doesn't mention importing the plugin to plugins.go. I was unable to get the plugin to build into my binary without it. Updated documentation to prevent future confusion.
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Sort hack/.linted packages
Appending to the file by default creates merge conflicts in the submit queue. Sorting will reduce that considerably.
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[Kubelet] Optionally consume configuration from <node-name> named config maps
This extends the Kubelet to check the API server for new node-specific config, and exit when it finds said new config.
/cc @kubernetes/sig-node @mikedanese @timstclair @vishh
**Release note**:
```
Extends Kubelet with Alpha Dynamic Kubelet Configuration. Please note that this alpha feature does not currently work with cloud provider auto-detection.
```
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[GarbageCollector] Allow per-resource default garbage collection behavior
What's the bug:
When deleting an RC with `deleteOptions.OrphanDependents==nil`, garbage collector is supposed to treat it as `deleteOptions.OrphanDependents==true", and orphan the pods created by it. But the apiserver is not doing that.
What's in the pr:
Allow each resource to specify the default garbage collection behavior in the registry. For example, RC registry's default GC behavior is Orphan, and Pod registry's default GC behavior is CascadingDeletion.
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Enable v3 Client as the default on UTs
Updates the default initialization to use clientv3 interface to etcd3, and fixes the UTs.
This PR includes a cherry-pick of https://github.com/kubernetes/kubernetes/pull/30634 so we can validate the tests, so do not merge until that PR is complete.
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Reduce size of images fluentd-gcp and fluentd-elasticsearch
replaces #26652
```
aledbf/fluentd-elasticsearch 1.19 769ece5c8ba8 About an hour ago 269.9 MB
gcr.io/google_containers/fluentd-elasticsearch 1.18 0a8cbfbea7f7 5 weeks ago 530.3 MB
aledbf/fluentd-gcp 1.22 ef979b82a767 About an hour ago 307.9 MB
gcr.io/google_containers/fluentd-gcp 1.21 0ef09b1bcfd7 2 weeks ago 498.5 MB
```
closes#29782
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ObjectMeta equivalence in federated controller handlers + update in fed secrets
Federated secrets should trigger also on data/type update, not only on object meta.
cc: @quinton-hoole @kubernetes/sig-cluster-federation
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Implements Attacher Plugin Interface for vSphere
This PR does the following,
Fixes#29028 (vsphere volume should implement attacher interface): Implements Attacher Plugin Interface for vSphere.
See file:
pkg/volume/vsphere_volume/vsphere_volume.go. - Removed attach and detach calls from SetupAt and TearDownAt.
pkg/volume/vsphere_volume/attacher.go. - Implements Attacher & Detacher Plugin Interface for vSphere. (Ref :- GCE_PD & AWS attacher.go)
pkg/cloudproviders/provider/vsphere.go - Added DiskIsAttach method.
The vSphere plugin code needs clean up. (ex: The code for getting vSphere instance is repeated in file pkg/cloudprovider/providers/vsphere.go). I will fix this in next PR.
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Add Cluster field in ObjectMeta
There will be no sub-rs, but add `Cluster` field to the ObjectMeta (for all the objects)
"To distinguish the object at the federation level from it's constituents at the cluster level we will add a "Cluster" field to the metadata of all objects (where the federation itself will also have a cluster identifier). That way it is possible to list, interact with, and distinguish between the objects either at the federation level or at the individual cluster level based on the cluster identifier. "
@quinton-hoole @nikhiljindal @deepak-vij @mfanjie @huangyuqi
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