Automatic merge from submit-queue
Refactor cert utils into one pkg, add funcs from bootkube for kubeadm to use
**What this PR does / why we need it**:
We have ended-up with rather incomplete and fragmented collection of utils for handling certificates. It may be worse to consider using `cfssl` for doing all of these things, but for now there is some functionality that we need in `kubeadm` that we can borrow from bootkube. It makes sense to move the utils from bookube into core, as discussed in #31221.
**Special notes for your reviewer**: I've taken the opportunity to review names of existing funcs and tried to make some improvements in that area (with help from @peterbourgon).
**Release note**:
```release-note
NONE
```
Automatic merge from submit-queue
Handle Stream() errors consistently in restclient
We should be following the same rules for Stream() as the normal body
request flow.
Also add slightly more output on a server error - in the future we may
want to clean this up but it's potentially hiding bad responses.
Related to #32009 but isn't the fix (so far)
We should be following the same rules for Stream() as the normal body
request flow.
Also add slightly more output on a server error - in the future we may
want to clean this up but it's potentially hiding bad responses.
Currently if there is an error (not found) the error printed out
is to do with the inablity to convert an empty body into the expected json.
This patch will fill in the err correctly.
example of before (with NotFound error):
$ kubectl top node
failed to unmarshall heapster response: json: cannot unmarshal object into Go value of type []v1alpha1.NodeMetrics
Now:
$ kubectl top node
the server could not find the requested resource (get services http:heapster:)
Automatic merge from submit-queue
Remove implicit Prometheus metrics from client
**What this PR does / why we need it**: This PR starts to cut away at dependencies that the client has.
**Release note**:
<!-- Steps to write your release note:
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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
The implicit registration of Prometheus metrics for request count and latency have been removed, and a plug-able interface was added. If you were using our client libraries in your own binaries and want these metrics, add the following to your imports in the main package: "k8s.io/pkg/client/metrics/prometheus".
```
cc: @kubernetes/sig-api-machinery @kubernetes/sig-instrumentation @fgrzadkowski @wojtek-t
Also allow a new AcceptContentTypes field to allow the client to ask for
a fallback serialization when getting responses from the server. This
allows a new client to ask for protobuf and JSON, falling back to JSON
when necessary.
The changes to request.go allow error responses from non-JSON servers to
be properly decoded.
Automatic merge from submit-queue
Fix problem specifying fqdn:port in command line
When specifying --server in kubectl for example, we end up
with failure if you use "localhost:8080" instead of
"127.0.0.1:8080". This is because of the way url.Parse
works as shown in snippet:
https://play.golang.org/p/luD57S6sEz
Essentially localhost ends up as the Scheme and NOT as the Host.
So we add another check to make sure we prepend the scheme
when Host ends up being empty as well. Tested with
"kubectl --server localhost:8080 get po"
Fixes#2967
Automatic merge from submit-queue
"was not created" should be "was created"
In file pkg\client\restclient/request_test.go, line #1089, "t.Errorf("expected object was not created")" , here "was not created" should be "was created" because the if condition is "if wasCreated".
When specifying --server in kubectl for example, we end up
with failure if you use "localhost:8080" instead of
"127.0.0.1:8080". This is because of the way url.Parse
works as shown in snippet:
https://play.golang.org/p/luD57S6sEz
Essentially localhost ends up as the Scheme and NOT as the Host.
So we add another check to make sure we prepend the scheme
when Host ends up being empty as well. Tested with
"kubectl --server localhost:8080 get po"
Fixes#2967
The codec factory should support two distinct interfaces - negotiating
for a serializer with a client, vs reading or writing data to a storage
form (etcd, disk, etc). Make the EncodeForVersion and DecodeToVersion
methods only take Encoder and Decoder, and slight refactoring elsewhere.
In the storage factory, use a content type to control what serializer to
pick, and use the universal deserializer. This ensures that storage can
read JSON (which might be from older objects) while only writing
protobuf. Add exceptions for those resources that may not be able to
write to protobuf (specifically third party resources, but potentially
others in the future).
Wojciech Tyczynski