Automatic merge from submit-queue
Add a 'kubectl clusterinfo dump' option
Ref: #3500
@bgrant0607 @smarterclayton @jszczepkowski
Usage:
```
# Dump current cluster state to stdout
kubectl clusterinfo dump
# Dump current cluster state to /tmp
kubectl clusterinfo dump --output-directory=/tmp
# Dump all namespaces to stdout
kubectl clusterinfo dump --all-namespaces
# Dump a set of namespaces to /tmp
kubectl clusterinfo dump --namespaces default,kube-system --output-directory=/tmp
```
<!-- Reviewable:start -->
---
This change is [<img src="http://reviewable.k8s.io/review_button.svg" height="35" align="absmiddle" alt="Reviewable"/>](http://reviewable.k8s.io/reviews/kubernetes/kubernetes/20672)
<!-- Reviewable:end -->
Automatic merge from submit-queue
plumb Update resthandler to allow old/new comparisons in admission
Rework how updated objects are passed to rest storage Update methods (first pass at https://github.com/kubernetes/kubernetes/pull/23928#discussion_r61444342)
* allows centralizing precondition checks (uid and resourceVersion)
* allows admission to have the old and new objects on patch/update operations (sets us up for field level authorization, differential quota updates, etc)
* allows patch operations to avoid double-GETting the object to apply the patch
Overview of important changes:
* pkg/api/rest/rest.go
* changes `rest.Update` interface to give rest storage an `UpdatedObjectInfo` interface instead of the object directly. To get the updated object, the storage must call `UpdatedObject()`, passing in the current object
* pkg/api/rest/update.go
* provides a default `UpdatedObjectInfo` impl
* passes a copy of the updated object through any provided transforming functions and returns it when asked
* builds UID preconditions from the updated object if they can be extracted
* pkg/apiserver/resthandler.go
* Reworks update and patch operations to give old objects to admission
* pkg/registry/generic/registry/store.go
* Calls `UpdatedObject()` inside `GuaranteedUpdate` so it can provide the old object
Todo:
- [x] Update rest.Update interface:
* Given the name of the object being updated
* To get the updated object data, the rest storage must pass the current object (fetched using the name) to an `UpdatedObject(ctx, oldObject) (newObject, error)` func. This is typically done inside a `GuaranteedUpdate` call.
- [x] Add old object to admission attributes interface
- [x] Update resthandler Update to move admission into the UpdatedObject() call
- [x] Update resthandler Patch to move the patch application and admission into the UpdatedObject() call
- [x] Add resttest tests to make sure oldObj is correctly passed to UpdatedObject(), and errors propagate back up
Follow-up:
* populate oldObject in admission for delete operations?
* update quota plugin to use `GetOldObject()` in admission attributes
* admission plugin to gate ownerReference modification on delete permission
* Decide how to handle preconditions (does that belong in the storage layer or in the resthander layer?)
Automatic merge from submit-queue
Make node-instance-group base names unique to prevent collisions
We create multiple IGMs for >1000 Node clusters. When we have a conflict on base name IGMs will fight over ownership of the VM that happen to have the name belonging to multiple IGMs.
This change will increase reliability of starting big clusters.
cc @wojtek-t @alex-mohr @roberthbailey @mikedanese
Instead of just rate limits to operation polling, send all API calls
through a rate limited RoundTripper.
This isn't a perfect solution, since the QPS is obviously getting
split between different controllers, etc., but it's also spread across
different APIs, which, in practice, rate limit differently.
Fixes#26119 (hopefully)
Automatic merge from submit-queue
Add kubernetes.tar.gz to .gitignore
This patch avoids adding kubernetes.tar.gz to git staging as it gets downloaded during get-kube.sh script.
Automatic merge from submit-queue
remove ConfigMap example from GC proposal
We need more thoughts on the design. Remove it to avoid causing confusion.
@derekwaynecarr @lavalamp
Automatic merge from submit-queue
Proposal: persistent volume selector
Partially replaces #17056. Another proposal will follow dealing with dynamic provisioning on top of storage classes.
@kubernetes/sig-storage
The code in pkg github.com/emicklei/examples/ is not referenced in kubernetes
codebase. Somehow it was mirrored in the vendor directory in a previous
PR #25365.
This causes problems for godeps which will then include the reference to this
code in the Godeps.json file (among other packages that are not in the vendors
directory).
Removing the directory and its contents fixes the fissue and we believe the
current godeps process should prevent it from re-occurring.
Automatic merge from submit-queue
Don't dump everything in kubemarks
Don't dump all events etc. in kubemark failures, those are useless anyway with that amount of data.
Automatic merge from submit-queue
Fix panic in auth test failure
I got a spurious failure in the webhook integration test, but couldn't see the error returned because a panic was hit that assumed a body was always returned with the response
Automatic merge from submit-queue
Handle federated service name lookups in kube-dns.
For the domain name queries that fail to match any records in the local
kube-dns cache, we check if the queried name matches the federation
pattern. If it does, we send a CNAME response to the federated name.
For more details look at the comments in the code.
Tests are coming ...
Also, this PR is based on @ArtfulCoder's PR #23930. So please review only the last commit here.
PTAL @ArtfulCoder @thockin @quinton-hoole @nikhiljindal
[]()
k8s-merge-robot
