A.support soft link better
before this patch
"kubectl cp" command will copy the soft link to destination as an empty regular file
after this patch
"kubectl cp" command will behave the same as tar command
this patch improves it on both from container and to container
B.fix some bugs
1.from container to host
a.when copy a file ends with '/', it will cause a panic.
for example, container gakki has a regular file /tmp/test, then run command
kubectl cp gakki:/tmp/test/ /tmp
panic happens
b.when copy a file which does not exist in container, the command ends up without
any error information
2.from host to container
a.when run command like
kubectl cp "" gakki:/tmp
it will try cp current directory to container, in other words, this command works
the same as kubectl cp . gakki:/tmp
b.current cp command will omit an empty directory
modified: pkg/kubectl/cmd/cp.go
modified: pkg/kubectl/cmd/cp_test.go
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Split common e2e volume tests into two files.
Fixes#49217
Split configMap, secret, and downwardAPI tests into two files: volume
and non-volume. Prefixed volume tests with [sig-storage] and non volume
tests with [sig-api-machinery].
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Kubeadm: Add some validation for external etcd config
**What this PR does / why we need it**:
This PR add file existing check for etcd cert files.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
fixes https://github.com/kubernetes/kubeadm/issues/342
**Special notes for your reviewer**:
Unlike issue https://github.com/kubernetes/kubeadm/issues/342 said, we already have etcd version check which include extensive validation including file format etc. This PR simply added some file existing check upfront for being more user friendly.
**Release note**:
```release-note
NONE
```
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Clean up unused func checkKnownProxyMode
**What this PR does / why we need it**:
Minor cleanup.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Delete redundant defination
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
```
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update cluster printer to enable --show-labels
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53729
**Special notes for your reviewer**:
**Release note**:
```release-note
update cluster printer to enable --show-labels
```
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Ensure base image includes the modprobe binary
**What this PR does / why we need it**:
Includes the kmod package so that "modprobe" is available for kubelet and kube-proxy.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#53396
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Parse cluster-cidr only if it is specified
xref https://github.com/kubernetes/kubernetes/issues/53570#issuecomment-335943956
**What this PR does / why we need it**:
In iptables/proxier.go, there is code to check the length of the
CIDR and setup nat/iptables only if the length of the string is
greater than zero. However in PR #49087, strong validation was
added so kube proxy currently bails out and basically mandates
a valid cidr has to be specified. Let us go back to the earlier
behavior.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Get rid of pkg/api/util
Old helpers we can replace with apimachinery tools.
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kubeadm: prepare for v1.9 cycle
**What this PR does / why we need it**:
Prepares kubeadm for v1.9 cycle which only supports v1.8 and v1.9 (when released). Deletes all v1.7.x support and sets minimum Kubernetes version to v1.8.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes
https://github.com/kubernetes/kubeadm/issues/447https://github.com/kubernetes/kubeadm/issues/448https://github.com/kubernetes/kubeadm/issues/445
**Special notes for your reviewer**:
@luxas these changes seem a bit aggressive but seems reasonable given the compatibility expectations for kubeadm.
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Avoid fetching entire discovery tree when possible
For specific commands, we use discovery to determine whether a particular resource is available.
We should avoid fetching the entire discovery tree to check a single resource group version. As the number of groups grows, the performance hit and potential to encounter an error also grows.
```release-note
NONE
```
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Use bazel to build/push kubemark image
try to get some proof of concept, kubemark image is probably simple enough to get converted to bazel. (me bazel noob still trying it out locally)
cc @BenTheElder @ixdy @shyamjvs
/release-note-none
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RBAC: Add test for create clusterrolebindding
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
NONE
```
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Mark etcd-quorum-read as deprecated.
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
ref: #53662 ##53717
**Special notes for your reviewer**:
/cc @liggitt @dims @anguslees
**Release note**:
```release-note
Deprecation: The flag `etcd-quorum-read ` of kube-apiserver is deprecated and the ability to switch off quorum read will be removed in a future release.
```
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Reduce log spam in qos container manager
**What this PR does / why we need it**:
excessive log stmts make it hard to debug actual problems.
**Release note**:
```release-note
NONE
```
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Improve e2e tests of audit logging.
Now test includes:
* Verbs: create, list, watch, delete, get, update, patch.
* Resources: pods, deployments, secrets, config maps, custom resource
definition.
* More fields: user, resource, level, stage, presence of request and
response objects.
Fixes#49653
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Update comments in pkg/kubeapiserver/authenticator/config.go
**What this PR does / why we need it**:
Make the comments consistent with the function signatures
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```
NONE
```
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[GCE kube-up] Allow creating/deleting custom network
**What this PR does / why we need it**:
From https://github.com/kubernetes/test-infra/issues/4472.
This is the first step to make PR jobs use custom network instead of auto network (so that we will be less likely hitting subnetwork quota issue).
The last commit is purely for testing out the changes on PR jobs. It will be removed after review.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #NONE.
**Special notes for your reviewer**:
/assign @bowei @nicksardo
**Release note**:
```release-note
NONE
```
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Release NodePorts at the end of test cases
**What this PR does / why we need it**:
#49098 reported a flake of HealthCheck NodePort leak and #49099 fixed it. I don't know why I forgot to check other Node Ports in the test cases. Though I haven't encountered such flake yet, it'd be good to release those Node Ports at the end of test cases to avoid flake.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#49548
Thanks @kargakis for reporting #49548!
**Special notes for your reviewer**:
/cc @deads2k @freehan
**Release note**:
```release-note
NONE
```
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add ApproximatePodTemplateForObject factory method
Makes it possible to get at a pod spec template even if an object is scaled to zero, for use with commands that care about pod templates.
**Release note**:
```release-note
NONE
```
Related downstream patch and use-case: https://github.com/openshift/origin/pull/16379
cc @smarterclayton
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Support autoprobing node-security-group for openstack cloud provider
1. Support autoprobing node-security-group
2. Support multiple Security Groups for cluster's nodes
3. Fix recreating Security Group for cluster's nodes
This is a part of #50726
**Special notes for your reviewer**:
/assign @anguslees
/assign @dims
**Release note**:
```release-note
Support autoprobing node-security-group for openstack cloud provider, Support multiple Security Groups for cluster's nodes.
```
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Add feature gate for allocatable disk eviction
Issue: #52336
This PR adds the local storage feature gate to local storage allocatable eviction.
cc @kubernetes/sig-node-bugs
/assign @jingxu97 @dchen1107
we should target this for 1.7 if possible.
```release-note
fix a bug where disk pressure could trigger prematurely
```
We were exiting at the first mismatched index, but we want to collect
the diffs for all children. Also, we were assuming diffs existed which
was not always true (and was due to other bugs that we weren't catching
before).
