This implements a stream cleanup when using portforwardings. Before
applying this patch, the streams []httpstream.Stream within
`spdy/connection.go` would fill-up for each streaming request. This
could result in heavy memory usage. Now we use the stream identifier to
keep track of them and finally remove them again once they're no longer
needed.
Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
Kubernetes-commit: 6459ed6717d1851f9ca28e3f245672a6a62aa0bf
Errors from staticcheck:
cmd/preferredimports/preferredimports.go:38:2:
package golang.org/x/crypto/ssh/terminal is deprecated:
this package moved to golang.org/x/term. (SA1019)
vendor/k8s.io/client-go/plugin/pkg/client/auth/exec/exec.go:36:2:
package golang.org/x/crypto/ssh/terminal is deprecated:
this package moved to golang.org/x/term. (SA1019)
vendor/k8s.io/client-go/tools/clientcmd/auth_loaders.go:26:2:
package golang.org/x/crypto/ssh/terminal is deprecated:
this package moved to golang.org/x/term. (SA1019)
Please review the above warnings. You can test via:
hack/verify-staticcheck.sh <failing package>
If the above warnings do not make sense, you can exempt the line or
file. See:
https://staticcheck.io/docs/#ignoring-problems
generated:
- hack/update-internal-modules.sh
- hack/lint-dependencies.sh
- hack/update-vendor.sh
Signed-off-by: Stephen Augustus <foo@auggie.dev>
Kubernetes-commit: d9435800b65d6787beaf061546599d757b8e87c9
This changes the event recorder to use the equivalent of a select
statement instead of a goroutine to record events.
Previously, we used a goroutine to make event recording non-blocking.
Unfortunately, this writes to a channel, and during shutdown we then
race to write to a closed channel, panicing (caught by the error
handler, but still) and making the race detector unhappy.
Instead, we now use the select statement to make event emitting
non-blocking, and if we'd block, we just drop the event. We already
drop events if a particular sink is overloaded, so this just moves the
incoming event queue to match that behavior (and makes the incoming
event queue much longer).
This means that, if the user uses `Eventf` and friends correctly (i.e.
ensure they've returned by the time we call `Shutdown`), it's
now safe to call Shutdown. This matches the conventional go guidance on
channels: the writer should call close.
Kubernetes-commit: e90e67bd002e70a525d3ee9045b213a5d826074d
If configuration object is used concurrently
it is not safe to mutate self.
There is no need for mutation so avoid it
just in case.
Kubernetes-commit: 9e360eb05efafd0fcabd5a065b62cb8226da94c2
Adds unit tests covering the problematic scenarios identified
around conflicting data in child owner references
Before After
package level 51% 68%
garbagecollector.go 60% 75%
graph_builder.go 50% 81%
graph.go 50% 68%
Added/improved coverage of key functions that had lacking unit test coverage:
* attemptToDeleteWorker
* attemptToDeleteItem
* processGraphChanges (added coverage of all added code)
Kubernetes-commit: e491c3bc7056530d82590d95f0af0e8c4d8dded5
Exec plugin implementations should be able to call
LoadExecCredentialFromEnv() in order to get everything they need to
operate (i.e., cluster information (as long as it is passed in) and
optionally per-cluster configuration).
Signed-off-by: Andrew Keesler <akeesler@vmware.com>
Kubernetes-commit: 875a46bd7c1b79f1fae9cd189eec5fc9c3fbf1bc
- The main idea here is that we want to 1) prevent potentially large CA
bundles from being set in an exec plugin's environment and 2) ensure
that the exec plugin is getting everything it needs in order to talk to
a cluster.
- Avoid breaking existing manual declarations of rest.Config instances by
moving exec Cluster to kubeconfig internal type.
- Use client.authentication.k8s.io/exec to qualify exec cluster extension.
- Deep copy the exec Cluster.Config when we copy a rest.Config.
Signed-off-by: Andrew Keesler <akeesler@vmware.com>
Kubernetes-commit: c4299d15d5289768808034676858e76a177eeae5
