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Provide flags to use etcd3 backed storage
ref: #24405
What's in this PR?
- Add a new flag "storage-backend" to choose "etcd2" or "etcd3". By default (i.e. empty), it's "etcd2".
- Take out etcd config code into a standalone package and let it create etcd2 or etcd3 storage backend given user input.
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Make all defaulters public
Will allow for generating direct accessors in conversion code instead of using reflection.
@wojtek-t
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Promote Pod Hostname & Subdomain to fields (were annotations)
Deprecating the podHostName, subdomain and PodHostnames annotations and created corresponding new fields for them on PodSpec and Endpoints types.
Annotation doc: #22564
Annotation code: #20688
fix https://github.com/kubernetes/kubernetes/issues/24717
If kubelet root-dir is a symlink, the pod's cinder volume dir can't be
umounted even after pod is deleted.
This patch reads target path of symlink before comparing with entries in
proc mounts.
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Cleans up line wrap at 80 cols and some minor editing issues
Address line wrap issue #1488. Also cleans up other minor editing issues in the docs/design/* tree such as spelling errors.
Signed-off-by: mikebrow <brownwm@us.ibm.com>
- All supported platforms can handle the same set of signals we're
interested in, thus we don't need build contraints to use a set of
signals on Linux, while restricting ourselves to only SIGINT on Darwin
and Windows.
- According to the documentation of os/signal, similar to SIGINT and
SIGTERM, SIGHUP causes the program to exit, therefore add it to the
list of handled signals.
Signed-off-by: Rodolfo Carvalho <rcarvalh@redhat.com>
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fully qualify admission resources and kinds
Fully qualifies the `Kind` and `Resource` fields for admission attributes. The information was getting filtered at the `RESTHandler` before.
@derekwaynecarr
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Update Docker version after cockpit installation
Fixes https://github.com/kubernetes/kubernetes/issues/24530
The vagrant setup didn't worked for me because `cockpit cockpit-kubernetes` brings their own Docker version (1.7) which doesn't work and the master components doesn't come up. More information about this bug are in my [issue](https://github.com/kubernetes/kubernetes/issues/24530).
My test system:
```bash
$ uname -a
Darwin MyMacBook.local 15.4.0 Darwin Kernel Version 15.4.0: Fri Feb 26 22:08:05 PST 2016; root:xnu-3248.40.184~3/RELEASE_X86_64 x86_64
$ vagrant --version
Vagrant 1.8.1
$ VBoxManage --version
5.0.16r105871
```
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Update configmap design doc
1. Update ConfigMapSelector -> ConfigMapKeySelector
2. Update apiVersion to v1
3. Fix error validating data: expected type array, for field spec.containers[0].command, got string; if you choose to ignore these errors, turn validation off with --validate=false
Automatic merge from submit-queue
Store node information in NodeInfo
This is significantly improving scheduler throughput.
On 1000-node cluster:
- empty cluster: ~70pods/s
- full cluster: ~45pods/s
Drop in throughput is mostly related to priority functions, which I will be looking into next (I already have some PR #24095, but we need for more things before).
This is roughly ~40% increase.
However, we still need better understanding of predicate function, because in my opinion it should be even faster as it is now. I'm going to look into it next week.
@gmarek @hongchaodeng @xiang90
