Automatic merge from submit-queue (batch tested with PRs 46686, 45049, 46323, 45708, 46487)
[Federation][kubefed]: Use StorageClassName for etcd pvc
This PR updates kubefed to use the StorageClassName field [added in 1.6](http://blog.kubernetes.io/2017/03/dynamic-provisioning-and-storage-classes-kubernetes.html
) for etcd's pvc to allow the user to specify which storage class they want to use. If no value is provided to ``kubefed init``, the field will not be set, and initialization of the pvc may fail on a cluster without a default storage class configured.
The alpha annotation that was previously used (``volume.alpha.kubernetes.io/storage-class``) was deprecated as of 1.4 according to the following blog post:
http://blog.kubernetes.io/2016/10/dynamic-provisioning-and-storage-in-kubernetes.html
**Release note**:
```
'kubefed init' has been updated to support specification of the storage class (via --etcd-pv-storage-class) for the Persistent Volume Claim (PVC) used for etcd storage. If --etcd-pv-storage-class is not specified, the default storage class configured for the cluster will be used.
```
cc: @kubernetes/sig-federation-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 46686, 45049, 46323, 45708, 46487)
Log an EBS vol's instance when attaching fails because VolumeInUse
Messages now look something like this:
E0427 15:44:37.617134 16932 attacher.go:73] Error attaching volume "vol-00095ddceae1a96ed": Error attaching EBS volume "vol-00095ddceae1a96ed" to instance "i-245203b7": VolumeInUse: vol-00095ddceae1a96ed is already attached to an instance
status code: 400, request id: f510c439-64fe-43ea-b3ef-f496a5cd0577. The volume is currently attached to instance "i-072d9328131bcd9cd"
weird that AWS doesn't bother to put that information in there for us (it does when you try to delete a vol that's in use)
```release-note
NONE
```
Automatic merge from submit-queue
Migrate kubelet to ConfigMapManager interface and use TTL-based caching manager
Fixes#41379
Sometime ago we moved to a secret manager interface for kubelet to manage secrets.
This PR's first commit moves config map management also to a similar interface.
The second commit adds TTL-based CachingConfigMapManager (similar to CachingSecretManager) and makes kubelet use it.
/cc @kubernetes/sig-node-pr-reviews @kubernetes/sig-scalability-misc @wojtek-t @dchen1107
Centralize the creation of the dialer during startup.
Have the dialer then passed in to both APIServer and Aggregator.
Aggregator the sets the dialer on its Transport base.
This should allow the SSTunnel to be used but also allow the Aggregation
Auth to work with it.
Depending on Environment InsecureSkipTLSVerify *may* need to be set to
true.
Fixed as few tests to call CreateDialer as part of start-up.
When using iscsi storage with multiple target portal (TP)
addresses and multipathing the volume manager logs on to
the IQN for all portal addresses, but when a pod gets
destroyed the volume manager only logs out for the primary
TP and sessions for another TPs are always remained.
This patch adds methods to store and load iscsi disk
configrations, then uses the stored config at DetachDisk
path.
Fix#45394
