Automatic merge from submit-queue
Add Windows support to kube-proxy
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**What this PR does / why we need it**:
This is the first stab at supporting kube-proxy (userspace mode) on Windows
**Which issue this PR fixes** :
fixes#30278
**Special notes for your reviewer**:
The MVP uses `netsh portproxy` to redirect traffic from `ServiceIP:ServicePort` to a `LocalIP:LocalPort`.
For the next version we are expecting to have guidance from Microsoft Container Networking team.
**Limitations**:
Current implementation does not support DNS queries over UDP as `netsh portproxy` currently only supports TCP. We are working with Microsoft to remediate this.
cc: @brendandburns @dcbw
**Release note**:
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1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
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```release-note
```
Automatic merge from submit-queue
Make GCI nodes mount non tmpfs, ext* & bind mounts using an external mounter
This PR downloads the stage1 & gci-mounter ACIs as part of cluster bring up instead of downloading them dynamically from gcr.io, which was the cause for #36206.
I have also optimized the containerized mounter to pre-load the mounter image once to avoid fetch latency while using it.
Original PR which got reverted: https://github.com/kubernetes/kubernetes/pull/35821
```release-note
GCI nodes use an external mounter script to mount NFS & GlusterFS storage volumes
```
@mtaufen Node e2e is not re-enabled in this PR.
cc @jingxu97
Automatic merge from submit-queue
specify custom ca file to verify the keystone server
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**What this PR does / why we need it**:
Sometimes the keystone server's certificate is self-signed, mainly used for internal development, testing and etc.
For this kind of ca, we need a way to verify the keystone server.
Otherwise, below error will occur.
> x509: certificate signed by unknown authority
This patch provide a way to pass in a ca file to verify the keystone server when starting `kube-apiserver`.
**Which issue this PR fixes** : fixes#22695, #24984
**Special notes for your reviewer**:
**Release note**:
<!-- Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
-->
``` release-note
```
Provides an opt-in flag, --experimental-fail-swap-on (and corresponding
KubeletConfiguration value, ExperimentalFailSwapOn), which is false by default.
Automatic merge from submit-queue
Rename experimental-runtime-integration-type to experimental-cri
Also rename the field in the component config to `EnableCRI`
If we have a public & private zone with the same name (which is common
on AWS), this means we can still create records. Also tighten up some
of the logic to allow for zones with duplicate names.
Automatic merge from submit-queue
Add verify script for federation OpenAPI spec generation
We are missing hack/verify-federation-openapi-spec.sh. It should be something similar to hack/verify-openapi-spec.sh.
Automatic merge from submit-queue
Fix hack/local-up by declaring defaults for unbound env vars
The variables were not defaulted and caused hack/local-up-cluster to not work.
Automatic merge from submit-queue
Node Conformance Test: Add system verification
For #30122 and #29081.
This PR introduces system verification test in node e2e and conformance test. It will run before the real test. Once the system verification fails, the test will just fail. The output of the system verification is like this:
```
I0909 23:33:20.622122 2717 validators.go:45] Validating os...
OS: Linux
I0909 23:33:20.623274 2717 validators.go:45] Validating kernel...
I0909 23:33:20.624037 2717 kernel_validator.go:79] Validating kernel version
KERNEL_VERSION: 3.16.0-4-amd64
I0909 23:33:20.624146 2717 kernel_validator.go:93] Validating kernel config
CONFIG_NAMESPACES: enabled
CONFIG_NET_NS: enabled
CONFIG_PID_NS: enabled
CONFIG_IPC_NS: enabled
CONFIG_UTS_NS: enabled
CONFIG_CGROUPS: enabled
CONFIG_CGROUP_CPUACCT: enabled
CONFIG_CGROUP_DEVICE: enabled
CONFIG_CGROUP_FREEZER: enabled
CONFIG_CGROUP_SCHED: enabled
CONFIG_CPUSETS: enabled
CONFIG_MEMCG: enabled
I0909 23:33:20.679328 2717 validators.go:45] Validating cgroups...
CGROUPS_CPU: enabled
CGROUPS_CPUACCT: enabled
CGROUPS_CPUSET: enabled
CGROUPS_DEVICES: enabled
CGROUPS_FREEZER: enabled
CGROUPS_MEMORY: enabled
I0909 23:33:20.679454 2717 validators.go:45] Validating docker...
DOCKER_GRAPH_DRIVER: aufs
```
It verifies the system following a predefined `SysSpec`:
``` go
// DefaultSysSpec is the default SysSpec.
var DefaultSysSpec = SysSpec{
OS: "Linux",
KernelVersion: []string{`3\.[1-9][0-9].*`, `4\..*`}, // Requires 3.10+ or 4+
// TODO(random-liu): Add more config
KernelConfig: KernelConfig{
Required: []string{
"NAMESPACES", "NET_NS", "PID_NS", "IPC_NS", "UTS_NS",
"CGROUPS", "CGROUP_CPUACCT", "CGROUP_DEVICE", "CGROUP_FREEZER",
"CGROUP_SCHED", "CPUSETS", "MEMCG",
},
Forbidden: []string{},
},
Cgroups: []string{"cpu", "cpuacct", "cpuset", "devices", "freezer", "memory"},
RuntimeSpec: RuntimeSpec{
DockerSpec: &DockerSpec{
Version: []string{`1\.(9|\d{2,})\..*`}, // Requires 1.9+
GraphDriver: []string{"aufs", "overlay", "devicemapper"},
},
},
}
```
Currently, it only supports:
- Kernel validation: version validation and kernel configuration validation
- Cgroup validation: validating whether required cgroups subsystems are enabled.
- Runtime Validation: currently, only validates docker graph driver.
The validating framework is ready. The specific validation items could be added over time.
@dchen1107
/cc @kubernetes/sig-node
Automatic merge from submit-queue
Rename PetSet to StatefulSet in docs and examples.
**What this PR does / why we need it**: Addresses some of the pre-code-freeze changes for implementing the PetSet --> StatefulSet rename. (#35534)
**Special notes for your reviewer**: This PR only changes docs and examples, as #35731 hasn't been merged yet and I don't want to create merge conflicts. I'll open another PR for any remaining code changes needed after that PR is merged. /cc @erictune @janetkuo @chrislovecnm
Automatic merge from submit-queue
New command: "kubeadm token generate"
As part of #33930, this PR adds a new top-level command to kubeadm to just generate a token for use with the init/join commands. Otherwise, users are left to either figure out how to generate a token on their own, or let `kubeadm init` generate a token, capture and parse the output, and then use that token for `kubeadm join`.
At this point, I was hoping for feedback on the CLI experience, and then I can add tests. I spoke with @mikedanese and he didn't like the original propose of `kubeadm util generate-token`, so here are the runners up:
```
$ kubeadm generate-token # <--- current implementation
$ kubeadm generate token # in case kubeadm might generate other things in the future?
$ kubeadm init --generate-token # possibly as a subcommand of an existing one
```
Currently, the output is simply the token on one line without any padding/formatting:
```
$ kubeadm generate-token
1087fd.722b60cdd39b1a5f
```
CC: @kubernetes/sig-cluster-lifecycle
**Release note**:
<!-- Steps to write your release note:
1. Use the release-note-* labels to set the release note state (if you have access)
2. Enter your extended release note in the below block; leaving it blank means using the PR title as the release note. If no release note is required, just write `NONE`.
-->
``` release-note
New kubeadm command: generate-token
```
Automatic merge from submit-queue
Add --force to kubectl delete and explain force deletion
--force is required for --grace-period=0. --now is == --grace-period=1.
Improve command help to explain what graceful deletion is and warn about
force deletion.
Part of #34160 & #29033
```release-note
In order to bypass graceful deletion of pods (to immediately remove the pod from the API) the user must now provide the `--force` flag in addition to `--grace-period=0`. This prevents users from accidentally force deleting pods without being aware of the consequences of force deletion. Force deleting pods for resources like StatefulSets can result in multiple pods with the same name having running processes in the cluster, which may lead to data corruption or data inconsistency when using shared storage or common API endpoints.
```
Automatic merge from submit-queue
make using service account credentials from controllers optional
Adds a flag to make the "SA per controller" behavior optional.
Automatic merge from submit-queue
add script to check for updates to the files for generation
Adds a verify script to help people writing APIs remember to wire all the individual pieces up. Eventually it will be better to avoid this altogether, but this is a start.
@ncdc fyi
Automatic merge from submit-queue
kubectl: make edit work with lists again
@kubernetes/kubectl this is fixing https://github.com/kubernetes/kubernetes/issues/20519 and slightly changes the behavior of --recursive when the directory that is being edited has files with errors. Previously since `edit` was working on an object basis, bad objects would be skipped and the editor would load the next object. We want to load multiple objects in the same list and it's impossible to load invalid objects in a list so --recursive will not work if there is any error in the directory. I think this is an acceptable trade-off.
Review here: https://github.com/kubernetes/kubernetes/pull/36148/files?w=1
Automatic merge from submit-queue
Switch DisruptionBudget api from bool to int allowed disruptions [only v1beta1]
Continuation of #34546. Apparently it there is some bug that prevents us from having 2 different incompatibile version of API in integration tests. So in this PR v1alpha1 is removed until testing infrastructure is fixed.
Base PR comment:
Currently there is a single bool in disruption budget api that denotes whether 1 pod can be deleted or not. Every time a pod is deleted the apiserver filps the bool to false and the disruptionbudget controller sets it to true if more deletions are allowed. This works but it is far from optimal when the user wants to delete multiple pods (for example, by decreasing replicaset size from 10000 to 8000).
This PR adds a new api version v1beta1 and changes bool to int which contains a number of pods that can be deleted at once.
cc: @davidopp @mml @wojtek-t @fgrzadkowski @caesarxuchao
Automatic merge from submit-queue
Disable the test-owners verify step until the merge conflicts are resolved
It's causing more pain than it's preventing currently. There should be some simpler ways to fix this.
Automatic merge from submit-queue
Fix typo in local-up-cluster
Use curly braces instead of round ones for bash variable expansion. The
script complains about unknown ROOT_CA_FILE when running with
KUBE_ENABLE_CLUSTER_DNS=true.
Added test cases to show that both flags are operating as intended.
Removed the print statement "running in local mode" as in PR#35112
The previous attempt at the PR (PR#35050) was reverted for causeing a flake.
I believe that setting the deployments terminationGracePeriodSeconds to 0 should
take care of it. I ran hack/make-rules/test-cmd.sh 50 times in a row without encountering
the flake
Automatic merge from submit-queue
[Kubelet] Use the custom mounter script for Nfs and Glusterfs only
This patch reduces the scope for the containerized mounter to NFS and GlusterFS on GCE + GCI clusters
This patch also enabled the containerized mounter on GCI nodes
Shepherding multiple PRs through the submit queue is painful. Hence I combined them into this PR. Please review each commit individually.
cc @jingxu97 @saad-ali
https://github.com/kubernetes/kubernetes/pull/35652 has also been reverted as part of this PR
Automatic merge from submit-queue
pod and qos level cgroup support
```release-note
[Kubelet] Add alpha support for `--cgroups-per-qos` using the configured `--cgroup-driver`. Disabled by default.
```
Automatic merge from submit-queue
Move Statefulset (previously PetSet) to v1beta1
**What this PR does / why we need it**: #28718
**Which issue this PR fixes** _(optional, in `fixes #<issue number>(, #<issue_number>, ...)` format, will close that issue when PR gets merged)_: fixes #
**Special notes for your reviewer**: depends on #35663 (PetSet rename)
cc @erictune @foxish @kubernetes/sig-apps
**Release note**:
``` release-note
v1beta1/StatefulSet replaces v1alpha1/PetSet.
```
Use curly braces instead of round ones for bash variable expansion. The
script complains about unknown ROOT_CA_FILE when running with
KUBE_ENABLE_CLUSTER_DNS=true.
Automatic merge from submit-queue
Retry "godep restore" once in verify-dockerized.sh
This should fix#36110. The current flake rate is 0.5%, so with the
unrealistic assumption of uncorrelated flakes, a single retry will bring
it down to <0.01% flake rate.
Automatic merge from submit-queue
fix verify-bazel.sh on mac and windows
mac bash doesn't like |& because mac bash is really old. the formating of wc
is also slightly different then on linux.
```console
$ # on linux
$ echo -n | wc -l
0
$ # on mac
$ echo -n | wc -l
0
```
Automatic merge from submit-queue
[Federation][init] Implement `kubefed init` command that performs federation control plane bootstrap.
Please review only the last commit here. This is based on PR #35593 which will be reviewed independently.
I am intentionally not including the unit tests in this PR to better distribute and parallelize reviews. This PR is already big.
I will add a release note separately for this entire feature, so please don't worry too much about the release note here in the PR.
Design Doc: PR #34484
cc @kubernetes/sig-cluster-federation @quinton-hoole @nikhiljindal
This should fix#36110. The current flake rate is 0.5%, so with the
unrealistic assumption of uncorrelated flakes, a single retry will bring
it down to <0.01% flake rate.
Fixes#35850.
GitHub's merging doesn't support .gitattributes-- I verified this with
support. There may be a workaround with line padding or making the bot
do merges on its own, which is beneficial for custom merge conflict
resolution in general.
Automatic merge from submit-queue
[Federation][(Un)join-01] Refactor common functions and structs into a util package.
Please review only the last commit here. This is based on PR #35495 which will be reviewed independently.
Design Doc: PR #34484
cc @kubernetes/sig-cluster-federation @quinton-hoole @nikhiljindal
--force is required for --grace-period=0. --now is == --grace-period=1.
Improve command help to explain what graceful deletion is and warn about
force deletion.
Automatic merge from submit-queue
[Federation][unjoin-00] Implement `kubefed unjoin` command.
Please review only the last commit here. This is based on PR #35493 which will be reviewed independently.
I will add a release note separately for this entire feature, so please don't worry too much about the release note here in the PR.
Design Doc: PR #34484
cc @kubernetes/sig-cluster-federation @quinton-hoole @nikhiljindal
mac bash doesn't like |& because mac bash is really old. the formating of wc
is also sligthly different then on linux
```
$ # on linux
$ echo -n | wc -l
0
$ # on mac
$ echo -n | wc -l
0
```
Automatic merge from submit-queue
Move .gitattributes annotation to the root, so GitHub will respect them.
This should fix the merge conflicts by letting GitHub use the simpler line-by-line algorithm for this file. Having .gitattributes in a sub-directory would work for local merging, but would show conflicts on the web UI.
Automatic merge from submit-queue
[Federation][join-01] Implement `kubefed join` command.
Supersedes PR #35155.
Please review only the last commit here. This is based on PR #35492 which will be reviewed independently.
I will add a release note separately for this entire feature, so please don't worry too much about the release note here in the PR.
Design Doc: PR #34484
cc @kubernetes/sig-cluster-federation @quinton-hoole @mwielgus
Automatic merge from submit-queue
Update verify-openapi-spec script to check for extra generated spec
hack/verify-openapi-spec.sh only check for existing spec changes. If for some reason (here most probably I forgot to delete a file in api/openapi-spec folder in #35388 after a rebase) there is an old spec exists in the spec folder, it won't panic but it should. This resulted in an unused out of date v1.spec file in the api/openapi-spec folder that this PR also removes.
Automatic merge from submit-queue
e2e.go/kops: Bump timeout to 20m, fix KUBERNETES_PROVIDER
**What this PR does / why we need it**: I don't have a ton of proof, but I think https://k8s-testgrid.appspot.com/google-aws#kops-aws-updown builds 4045-4047 are just AWS and DNS slowness.
In addition, my original PR was meant to change `KUBERNETES_PROVIDER` based on `KUBERNETES_CONFORMANCE_PROVIDER`.
Along the way: Fix ginkgo-e2e.sh. This change got dropped in the
original PR, but it was meant to allow a conformance-style
kubectl-auth test and still have a legit cloud provider.
Automatic merge from submit-queue
Add tooling to generate listers
Add lister-gen tool to auto-generate listers. So far this PR only demonstrates replacing the manually-written `StoreToLimitRangeLister` with the generated `LimitRangeLister`, as it's a small and easy swap.
cc @deads2k @liggitt @sttts @nikhiljindal @lavalamp @smarterclayton @derekwaynecarr @kubernetes/sig-api-machinery @kubernetes/rh-cluster-infra
Automatic merge from submit-queue
SELinux Overhaul
Overhauls handling of SELinux in Kubernetes. TLDR: Kubelet dir no longer has to be labeled `svirt_sandbox_file_t`.
Fixes#33351 and #33510. Implements #33951.
Automatic merge from submit-queue
Allow apiserver to choose preferred kubelet address type
Follow up to #33718 to stay compatible with clusters using DNS names for master->node communications. Adds the `--kubelet-preferred-address-types` apiserver flag for clusters that prefer a different node address type.
```release-note
The apiserver can now select which type of kubelet-reported address to use for master->node communications, using the --kubelet-preferred-address-types flag.
```
Automatic merge from submit-queue
make localupcluster work with RBAC enabled
When `ENABLE_RBAC=true` is set to true, `local-up-cluster` fails because it can't reach the endpoint (get a 403). This changes to an endpoint that the default policy allows anyone to see.
We can put subdomains into hosted zones (for example,
foo.federation.example.com can be hosted in example.com)
By allowing sharing a common hosted zone, this means the user doesn't
have to do as much setup.
Automatic merge from submit-queue
fixed some issues with kubectl set resources
when using kubectl set resources it resets all resource fields that are not being set.
for example
# kubectl set resources deployments nginx --limits=cpu=100m
followed by
# kubectl set resources deployments nginx --limits=memory=256Mi
would result in the nginx deployment only limiting memory at 256Mi with the previous
limit placed on the cpu being wiped out. This behavior is corrected so that each invocation
only modifies fields set in that command and changed the testing so that the desired behavior
is checked.
Also a typo:
you must specify an update to requests or limits or (in the form of --requests/--limits)
corrected to
you must specify an update to requests or limits (in the form of --requests/--limits)
Implemented both the dry run and local flags.
Added test cases to show that both flags are operating as intended.
Removed the print statement "running in local mode" as in PR#35112
Automatic merge from submit-queue
Verify and update client-go staging area for every PR
We need to keep the staging area up-to-date to prevent PRs from breaking client-go.
It's marked as "WIP" because we need to decide the [versioning strategy](https://github.com/kubernetes/client-go/issues/9) for client-go first. This PR contains breaking changes for client-go.
This is blocking #29934 and potentially #34441
cc @kubernetes/sig-api-machinery
Automatic merge from submit-queue
Let release_1_5 clientset include multiple versions of a group
Fix#35237
This PR make versioned clientset to include multiple versions of a group. Currently only `batch` has `v1` and `v2alpha1`. The clientset interface now looks like:
```go
BatchV2alpha1() v2alpha1batch.BatchV2alpha1Interface
BatchV1() v1batch.BatchV1Interface
// Deprecated: please explicitly pick a version if possible.
Batch() v1batch.BatchV1Interface
```
Commit "update client-gen to say internalversion rather than unversioned" fixes https://github.com/kubernetes/kubernetes/issues/24481.
cc @kubernetes/sig-api-machinery @soltysh @deads2k @nikhiljindal
```release-note
release_1_5 clientset supports multiple versions of a group.
```
Automatic merge from submit-queue
Make overlapping deployments deletable
@kubernetes/deployment ptal
Fixes https://github.com/kubernetes/kubernetes/issues/34466 by 1) not adding the overlapping annotation in the working deployment, 2) updates observedGeneration for overlapping deployments, and 3) updates the kubectl deployment reaper to do non-cascading deletion for deployments with the overlapping annotation.
Automatic merge from submit-queue
support editing before creating resource
Support `kubectl create -f config.yaml --edit`
Support editing before creating resource from files, urls and stdin.
The behavior is similar to `kubectl edit`
It won't create anything when edit make no change.
partial: #18064
Based on: #33686 and #33973
```release-note
Support editing before creating resource from files, urls and stdin, e.g. `kubectl create -f config.yaml --edit`
It won't create anything when edit make no change.
```
Automatic merge from submit-queue
allow authentication through a front-proxy
This allows a front proxy to set a request header and have that be a valid `user.Info` in the authentication chain. To secure this power, a client certificate may be used to confirm the identity of the front proxy
@kubernetes/sig-auth fyi
@erictune per-request
@liggitt you wrote the openshift one, ptal.
when using kubectl set resources it resets all resource fields that are not being set.
for example
# kubectl set resources deployments nginx --limits=cpu=100m
followed by
# kubectl set resources deployments nginx --limits=memory=256Mi
would result in the nginx deployment only limiting memory at 256Mi with the previous
limit placed on the cpu being wiped out. This behavior is corrected so that each invocation
only modifies fields set in that command and changed the testing so that the desired behavior
is checked.
Also a typo:
you must specify an update to requests or limits or (in the form of --requests/--limits)
corrected to
you must specify an update to requests or limits (in the form of --requests/--limits)
changelog:
- fixed a typo in hack/make-rules/test-cmd.sh "effecting" to "affecting"
Automatic merge from submit-queue
remove the non-generated client
Removes the non-generated client from kube. The package has a few methods left, but nothing that needs updating when adding new groups.
@ingvagabund
Automatic merge from submit-queue
Fix migration script to make it sh-friendly
Ref #22448
There is no bash in etcd image, so the script needs to be "sh-friendly".
Also, few fixes to the script.
Automatic merge from submit-queue
rename kubelet flag mounter-path to experimental-mounter-path
```release-note
* Kubelet flag '--mounter-path' renamed to '--experimental-mounter-path'
```
The feature the flag controls is an experimental feature and this renaming ensures that users do not depend on this feature just yet.
Automatic merge from submit-queue
Build: Use checksum to rsync results
If dependencies are touched, the Makefile will detect that tools like
deepcopy-gen need to be rebuilt. It will rebuild them, but if Go decides the
dependencies are not ACTUALLY updated (maybe it was a test file - known
limitation of the current Makefile), it does not touch the resulting binary.
The Makefile touches the result explicitly to mark that the dep change has
been handled. But rsync blows away that change with the older file, and
helpfully preserves the timestamp. This repeats on every build.
Now rsync ignores it if the checksum is the same. Result = faster build.
@wojtek-t @gmarek
If dependencies are touched, the Makefile will detect that tools like
deepcopy-gen need to be rebuilt. It will rebuild them, but Go decides the
dependencies are not actually updated (maybe it was a test file - known
limitation of the current Makefile) and does not touch the resulting binary.
Then the Makefile touches the result explicitly to mark thatthe dep change has
been handled. Then rsync blows away that change with the older file, and
helpfully preserves the timestamp.
Now rsync ignores it if the checksum is the same. Result = faster build.
Automatic merge from submit-queue
Add GroupVersion tags to OpenAPI spec and remove all specs except main one
Tags are used as a grouping mechanism in OpenAPI. We generated one spec per GroupVersion before for this grouping but by adding those tags in this PR, those files have no use. We can always add them back if there were a use-case for them.
**Release note**:
```release-note
Deprecate OpenAPI spec for GroupVersion endpoints in favor of single spec /swagger.json
```
Reference: #13414
