The problem is that attachments are now done on the master, and we are
only caching the attachment map persistently for the local instance. So
there is now a race, because the attachment map is cleared every time.
Issue #29324
Previously this code used http.Get and failed to read/close resp.Body, which
prevented network connection reuse, leaking fds. Now we use http.Head
instead, because its response always has a nil Body, so we don't have to
worry about read/close.
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Implement ExternalName in kube-dns
Part of the ongoing saga formerly known as https://github.com/kubernetes/features/issues/33
This is the prelude (first commit) in #30931, spawn into a separate PR to allow building a new kube-dns image before e2e tests (the rest of #30931) are updated.
ExternalName allows kubedns to return CNAME records for external
services. No proxying is involved.
cc @thockin
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change to stderr
`fmt.Fprint(out, "You must specify the type of resource to describe. ", valid_resources)`
change this to stderr.
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skip benchmark in jenkins serial test
This PR changes jenkins-serial.properties to skip benchmark tests (with tag [Benchmark]) in jenkins serial tests. It also add more comments in run_e2e.go.
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Add admission controller for default storage class.
The admission controller adds a default class to PVCs that do not require any
specific class. This way, users (=PVC authors) do not need to care about
storage classes, administrator can configure a default one and all these PVCs
that do not care about class will get the default one.
The marker of default class is annotation "volume.beta.kubernetes.io/storage-class", which must be set to "true" to work. All other values (or missing annotation) makes the class non-default.
Based on @thockin's code, added tests and made it not to reject a PVC when no class is marked as default.
.
@kubernetes/sig-storage
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support Azure data disk volume
This is a WIP of supporting azure data disk volume. Will add test and dynamic provisioning support once #29006 is merged
replace #25915fix#23259
@kubernetes/sig-storage
@colemickens @brendandburns
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Add ScaleExpansion to client v1.4
**What this PR does / why we need it**:
The generated v1.4 did not carry over the complete ScaleExpansion interface. The unversioned client is using this interface and should be in sync with generated client.
**Release note**:
```release-note
NONE
```
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Optimise the ValidateBytes function
The PR optimise the "ValidateBytes" function in factory.go. Too much "if" branches is poor readability, use "switch" to look better.
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fix Openstack provider to allow more than one service port for lbaas v2
This resolves bug #30477 where if a service defines multiple ports for load balancer, the plugin will fail with multiple ports are not supported.
@anguslees @jianhuiz
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Add kubelet --network-plugin-mtu flag for MTU selection
* Add network-plugin-mtu option which lets us pass down a MTU to a network provider (currently processed by kubenet)
* Add a test, and thus make sysctl testable
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Fix path to kubernetes_skew
Previously this was `$(pwd)/kubernetes/../kubernetes_old` this is equivalent to `$(pwd)/kubernetes_old` although we also changed the `old` to `skew` instead.
Fixes https://github.com/kubernetes/kubernetes/issues/31149
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Clarify documentation that new admission control plugin must be imported
```release-note
```
Admission control design doc doesn't mention importing the plugin to plugins.go. I was unable to get the plugin to build into my binary without it. Updated documentation to prevent future confusion.
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Sort hack/.linted packages
Appending to the file by default creates merge conflicts in the submit queue. Sorting will reduce that considerably.
