This commit replaces the CSIMigrationXXXComplete flag
with InTreePluginXXUnregister flag. This new flag will
be a superset of the CSIMigrationXXXComplete. But this
decouple the plugin unregister from CSI migration. So
if a K8s distribution want to go directly with CSI and
do not support in-tree, they can use this flag directly.
Testing:
1. Enable the InTreePluginXXUnregister and not CSIMigrationXXX,
verify that the PVC using old plugin name will have error
saying cannot find the plugin
2. Enable both the InTreePluginXXUnregister and CSIMigrationXXX
verify that the PVC using old plugin name will start to use
the migrated CSI plugin
`debuggingRoundTripper` is a useful throbleshooting tool to debug of Kubernetes API requests and their timing.
Unfortunately, as of today, it can only be used via the `DebugWrappers` function, which automatically adjust the amount of debug information exposed by the roundTripper based on the configured `klog` verbosity.
While `DebugWrappers` definitely fits the purpose for clients using `klog`, this is currently hard to be used for controllers using `controller-runtime`, which uses `github.com/go-logr/logr` for logging.
In this PR we change the visibility of `newDebuggingRoundTripper` and `debugLevel` in order to be directly accessible from users of the `k8s.io/client-go/transport` package.
In particular, the changes proposed in this PR allow users of `controller-runtime` to use the `debuggingRoundTripper` to intercept Kubernetes API requests as follows
```go
import (
ctrl "sigs.k8s.io/controller-runtime"
)
func init() {
ctrl.SetLogger(zap.New())
}
func main() {
// wrap the http transport used by the Kubernetes client
restConfig, err := ctrl.GetConfig()
checkError(setupLog, err, "unable to get kubernetes client config")
restConfig.Wrap(func(rt http.RoundTripper) http.RoundTripper {
return transport.NewDebuggingRoundTripper(rt, transport.DebugJustURL)
})
...
}
```
The default value for the progress is ``auto``, which will eat the output of RUN commands. This makes it a bit hard to debug when issues occur. Changing that option to ``plain`` will ensure that the output is properly kept.
Currently, the image is not working properly because of the apparmor_parser giving this error:
Error relocating /sbin/apparmor_parser: secure_getenv: symbol not found
Updating musl to 1.1.20 or newer will fix this problem.
The metadata-concealment image does not have any BASEIMAGE file, which means
that the image will be built from scratch. In this case, there are a few
fixes that need to be made in the image-build.sh script.
The test is not cleaning all pods it created.
Memory balancing pods are deleted once the test namespace is.
Thus, leaving the pods running or in terminating state when a new test is run.
In case the next test is "[sig-scheduling] SchedulerPredicates [Serial] validates resource limits of pods that are allowed to run",
the test can fail.
