Automatic merge from submit-queue (batch tested with PRs 39418, 41175, 40355, 41114, 32325)
TaintController
```release-note
This PR adds a manager to NodeController that is responsible for removing Pods from Nodes tainted with NoExecute Taints. This feature is beta (as the rest of taints) and enabled by default. It's gated by controller-manager enable-taint-manager flag.
```
Automatic merge from submit-queue (batch tested with PRs 41112, 41201, 41058, 40650, 40926)
make round trip testing generic
RoundTrip testing is something associated with a scheme and everyone who writes an API will want to do it. In the end, we should wire each API group separately in a test scheme and have them all call this general function. Once `kubeadm` is out of the main scheme, we'll be able to remove the one really ugly hack.
@luxas @sttts @kubernetes/sig-apimachinery-pr-reviews @smarterclayton
Automatic merge from submit-queue (batch tested with PRs 40796, 40878, 36033, 40838, 41210)
HPA v2 (API Changes)
**Release note**:
```release-note
Introduces an new alpha version of the Horizontal Pod Autoscaler including expanded support for specifying metrics.
```
Implements the API changes for kubernetes/features#117.
This implements #34754, which is the new design for the Horizontal Pod Autoscaler. It includes improved support for custom metrics (and/or arbitrary metrics) as well as expanded support for resource metrics. The new HPA object is introduces in the API group "autoscaling/v1alpha1".
Note that the improved custom metric support currently is limited to per pod metrics from Heapster -- attempting to use the new "object metrics" will simply result in an error. This will change once #34586 is merged and implemented.
Automatic merge from submit-queue (batch tested with PRs 40971, 41027, 40709, 40903, 39369)
Validate unique against HostPort/Protocol/HostIP
**What this PR does / why we need it**:
We can bind to specific IPs however validation will fail for different HostIP:HostPort combination. This is a small fix to check combination of HostPort/Protocol/HostIP rather than just HostPort/Protocol.
Sample configuration
...
"ports": [
{
"protocol": "TCP",
"containerPort": 53,
"hostPort": 55,
"hostIP": "127.0.0.1",
"name": "dns-local-tcp"
},
{
"protocol": "TCP",
"containerPort": 53,
"hostPort": 55,
"hostIP": "127.0.0.2",
"name": "dns-local-tcp2"
}
]
Before:
* spec.template.spec.containers[1].ports[2].hostPort: Duplicate value: "55/TCP"
* spec.template.spec.containers[1].ports[3].hostPort: Duplicate value: "55/TCP"
After applying the patch:
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:55 0.0.0.0:* LISTEN 3644/docker-proxy
tcp 0 0 127.0.0.2:55 0.0.0.0:* LISTEN 3629/docker-proxy
Thanks
Ashley
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 40289, 40877, 40879, 39972, 40942)
Remove the temporary fix for pre-1.0 mirror pods
The fix was introduced to fix#15960 for pre-1.0 pods. It should be safe to remove
this fix now.
Automatic merge from submit-queue (batch tested with PRs 40696, 39914, 40374)
Forgiveness library changes
**What this PR does / why we need it**:
Splited from #34825, contains library changes that are needed to implement forgiveness:
1. ~~make taints-tolerations matching respect timestamps, so that one toleration can just tolerate a taint for only a period of time.~~ As TaintManager is caching taints and observing taint changes, time-based checking is now outside the library (in TaintManager). see #40355.
2. make tolerations respect wildcard key.
3. add/refresh some related functions to wrap taints-tolerations operation.
**Which issue this PR fixes**:
Related issue: #1574
Related PR: #34825, #39469
~~Please note that the first 2 commits in this PR come from #39469 .~~
**Special notes for your reviewer**:
~~Since currently we have `pkg/api/helpers.go` and `pkg/api/v1/helpers.go`, there are some duplicated periods of code laying in these two files.~~
~~Ideally we should move taints-tolerations related functions into a separate package (pkg/util/taints), and make it a unified set of implementations. But I'd just suggest to do it in a follow-up PR after Forgiveness ones done, in case of feature Forgiveness getting blocked to long.~~
**Release note**:
```release-note
make tolerations respect wildcard key
```
Automatic merge from submit-queue (batch tested with PRs 35782, 35831, 39279, 40853, 40867)
genericapiserver: cut off more dependencies – episode 7
Follow-up of https://github.com/kubernetes/kubernetes/pull/40822
approved based on #40363
Automatic merge from submit-queue
Removed HPA objects from extensions api group
fix#29778
``` release-note
HorizontalPodAutoscaler is no longer supported in extensions/v1beta1 version. Use autoscaling/v1 instead.
```
cc @kubernetes/autoscaling
Automatic merge from submit-queue (batch tested with PRs 40638, 40742, 40710, 40718, 40763)
move client/record
An attempt at moving client/record to client-go. It's proving very stubborn and needs a lot manual intervention and near as I can tell, no one actually gets any benefit from the sink and source complexity it adds.
@sttts @caesarchaoxu
Automatic merge from submit-queue
Improve error messages for ValidateObject method.
Improved error messages for #ValidateObject method
in pkg/api/validation/schema.go.
Fixed#39110
Automatic merge from submit-queue (batch tested with PRs 39469, 40557)
Forgiveness api changes
**What this PR does / why we need it**:
Splited from #34825 , contains api changes that are needed to implement forgiveness:
1. update toleration api types to support forgiveness, added a new field forgivenessSeconds to indicate the duration of time it tolerates a taint.
2. update taint api types, added a new field to indicate the time the taint is added.
**Which issue this PR fixes** :
Related issue: #1574
Related PR: #34825
**Special notes for your reviewer**:
**Release note**:
```release-note
forgiveness alpha version api definition
```
Automatic merge from submit-queue
Optional configmaps and secrets
Allow configmaps and secrets for environment variables and volume sources to be optional
Implements approved proposal c9f881b7bb
Release note:
```release-note
Volumes and environment variables populated from ConfigMap and Secret objects can now tolerate the named source object or specific keys being missing, by adding `optional: true` to the volume or environment variable source specifications.
```
Move over only the conversions that are needed, create a new scheme that
is private to meta and only accessible via ParameterCodec. Move half of
pkg/util/labels/.readonly to pkg/apis/meta/v1/labels.go
Automatic merge from submit-queue (batch tested with PRs 40066, 36250, 40255, 40225, 40204)
Fix validation errors in cli are cryptic
fix issue https://github.com/kubernetes/kubernetes/issues/39811
now the error message is like:
`error validating "/home/shiywang/template/test.yaml": error validating data: field ports for v1.ServiceSpec: is required; if you choose to ignore these errors, turn validation off with --validate=false`
still need add some unit test, plz don't test now
Automatic merge from submit-queue (batch tested with PRs 39446, 40023, 36853)
Create environment variables from secrets
Allow environment variables to be populated from entire secrets.
**Release note**:
```release-note
Populate environment variables from a secrets.
```
Automatic merge from submit-queue
promote certificates api to beta
Mostly posting to see what breaks but also this API is ready to be promoted.
```release-note
Promote certificates.k8s.io to beta and enable it by default. Users using the alpha certificates API should delete v1alpha1 CSRs from the API before upgrading and recreate them as v1beta1 CSR after upgrading.
```
@kubernetes/api-approvers @jcbsmpsn @pipejakob
Automatic merge from submit-queue
move pkg/fields to apimachinery
Purely mechanical move of `pkg/fields` to apimachinery.
Discussed with @lavalamp on slack. Moving this an `labels` to apimachinery.
@liggitt any concerns? I think the idea of field selection should become generic and this ends up shared between client and server, so this is a more logical location.
Automatic merge from submit-queue
Use versioned Taint/Toleration/AvoidPods objects when marshalling
fixes#39847
`kubectl taint`, the kubelet's `--register-with-taints` option, and several Taint/Toleration/AllowPod annotation helpers were marshaling/unmarshaling using internal structs
Automatic merge from submit-queue
Remove packages which are now apimachinery
Removes all the content from the packages that were moved to `apimachinery`. This will force all vendoring projects to figure out what's wrong. I had to leave many empty marker packages behind to have verify-godep succeed on vendoring heapster.
@sttts straight deletes and simple adds
Automatic merge from submit-queue
genericapiserver: cut off pkg/serviceaccount dependency
**Blocked** by pkg/api/validation/genericvalidation to be split up and moved into apimachinery.
Automatic merge from submit-queue (batch tested with PRs 38592, 39949, 39946, 39882)
move api/errors to apimachinery
`pkg/api/errors` is a set of helpers around `meta/v1.Status` that help to create and interpret various apiserver errors. Things like `.NewNotFound` and `IsNotFound` pairings. This pull moves it into apimachinery for use by the clients and servers.
@smarterclayton @lavalamp First commit is the move plus minor fitting. Second commit is straight replace and generation.
Automatic merge from submit-queue (batch tested with PRs 39947, 39936, 39902, 39859, 39915)
Make api serialization test easier to follow
**What this PR does / why we need it**:
This PR makes the serialization test easier to understand and is informed by the recent experience of writing a new serialization test in SIG service catalog.
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Don't blame DNS spec on Kubernetes requirement for lower-case DNS labels.
**What this PR does / why we need it**: #39635 was rejected because it wasn't clear to the author (me) that lower-case DNS labels are in fact a [Kubernetes requirement](https://github.com/kubernetes/kubernetes/pull/39635#issuecomment-271404975) rather than from the [DNS RFC 1035](https://www.ietf.org/rfc/rfc1035.txt) or/and [DNS RFC 1123](https://www.ietf.org/rfc/rfc1123.txt).
**Special notes for your reviewer**: @thockin this is a first pass to make the error messages clearer about the fact that DNS specs are not to _blame_.
Automatic merge from submit-queue
replace global registry in apimachinery with global registry in k8s.io/kubernetes
We'd like to remove all globals, but our immediate problem is that a shared registry between k8s.io/kubernetes and k8s.io/client-go doesn't work. Since client-go makes a copy, we can actually keep a global registry with other globals in pkg/api for now.
@kubernetes/sig-api-machinery-misc @lavalamp @smarterclayton @sttts
Automatic merge from submit-queue (batch tested with PRs 39803, 39698, 39537, 39478)
[scheduling] Moved pod affinity and anti-affinity from annotations to api fields #25319
Converted pod affinity and anti-affinity from annotations to api fields
Related: #25319
Related: #34508
**Release note**:
```Pod affinity and anti-affinity has moved from annotations to api fields in the pod spec. Pod affinity or anti-affinity that is defined in the annotations will be ignored.```
Automatic merge from submit-queue (batch tested with PRs 39803, 39698, 39537, 39478)
default a CSR's allowed usage to key encipherment and digital signing
Some pretty safe and sane defaults.
@liggitt
Automatic merge from submit-queue (batch tested with PRs 37845, 39439, 39514, 39457, 38866)
Move watch/versioned to pkg/apis/meta/v1/watch.go
Watch is a part of the server API
Automatic merge from submit-queue (batch tested with PRs 39394, 38270, 39473, 39516, 36243)
Improve an error message when privileged containers are disallowed on the cluster
**What this PR does / why we need it**:
At present when user creates privileged pod and creation of privileged containers disallowed globally by a system administrator (kubelet and api-server were running with `--allow-privileged=false`), user will get the following error message:
```console
$ kubectl create -f nginx.pod
The Pod "nginx" is invalid: spec.containers[0].securityContext.privileged: Forbidden: disallowed by policy
```
"Disallowed by policy" may give a wrong assumption to a user that creation of privileged containers disallowed by [`PodSecurityPolicy`](http://kubernetes.io/docs/user-guide/pod-security-policy/) while it's not.
This commit improves error message and tries to point user to the right direction:
```console
$ kubectl create -f nginx.pod
The Pod "nginx" is invalid: spec.containers[0].securityContext.privileged: Forbidden: privileged containers are disallowed on this cluster by a system administrator
```
**Release note**:
```release-note
NONE
```
PTAL @pweil-
Automatic merge from submit-queue (batch tested with PRs 39466, 39490, 39527)
bump gengo to latest
bumping gengo to limit surprises while working on https://github.com/kubernetes/kubernetes/pull/39475
@kubernetes/sig-api-machinery-misc
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