getLocalDetector() used to pass a utiliptables.Interface to
NewDetectLocalByCIDR() so that NewDetectLocalByCIDR() could verify
that the passed-in CIDR was of the same family as the iptables
interface. It would make more sense for getLocalDetector() to verify
this itself and just *not call NewDetectLocalByCIDR* if the families
don't match, and that's what the code does now. So there's no longer
any need to pass the utiliptables.Interface to the local detector.
Since the single-stack and dual-stack local-detector-getters now have
the same behavior in terms of error-checking and dual-stack config, we
can just replace the contents of getDualStackLocalDetectorTuple() with
a pair of calls to getLocalDetector().
1. When bringing up a single-stack kube-proxy in a dual-stack cluster,
allow using either the primary or secondary IP family.
2. Since the earlier config-checking code will already have bailed out
if the single-stack configuration is unusably broken, we don't need to
do that here. Instead, just return a no-op local detector if there are
no usable CIDRs of the expected IP family.
Rather than having this as part of createProxier(), explicitly figure
out what IP families the proxier can support beforehand, and bail out
if this conflicts with the detected IP family.
Place the tests in common_tests.go on the backend side in
common_tests.go. A test for migrate TestMigrateOldConfig
was already present there. Apply slightly better coverage to it
and rename desc -> name.
Fix typo in argument oldConfig -> config in ValidateConfig().
The test required two APIs to be available to test for migration.
Keep it simple and use a variable "gv" on top of the function body
to easily swap the version to be tested once an old API is deleted.
e.g. currently v1beta3 is the "old" API, v1beta4 is the "new" one.
Ultimately, this test only makes sure that the expected kinds are
available post migration.
Add the flag --allow-experimental-api to the "config migrate" and
"config validate" commands. The flag allows validating / migrating-to
a unreleased / experimental API version.
Add a new experimentalAPIVersions map in validateSupportedVersion()
that contains v1beta4.
Move the defaulting of the BootstrapToken type inside the
bootstraptoken/v1 package. This prevents an error where
codegen complains that a defaulter for the type exists in both
the kubeadm v1beta3 and v1beta4.
Adapt kubeadm code to use the defaulter function and constants
that were moved to bootstraptoken/v1.
NOTE: technically this is a breaking change for direct users of
v1beta3/SetDefaults_BootstrapToken().
