This fixes the following error:
"error execution phase control-plane-join/etcd:
control-plane-join phase invoked with an invalid data struct"
The problem here is that joinData cannot be type-asserted
to the interface type under controlplanejoin.go (controlPlaneJoinData)
because joinData lacks KubeConfigPath.
Given we use KubeConfigPath in more than one place for join
it makes sense to define define the method and make it return:
kubeadmconstants.GetAdminKubeConfigPath()
This package contains public/private key utilities copied directly from
client-go/util/cert. All imports were updated.
Future PRs will actually refactor the libraries.
Updates #71004
- Rename FindExistingKubeConfig to GetKubeConfigPath
- Cobra supports a DefValue option which can be used
to differentiate between the cases where the user set a flag
and when a flag was unset, while still adding a default value.
Use this in options/generic.go for the kubeconfig flag.
- Remove the GetKubeConfigPath() logic from `reset` and `upgrade`
as these are node level kubeadm commands.
- Default kubeconfig values to "" everywhere where GetKubeConfigPath
is used. This allows to search for existing kubeconfig locations.
The structure `applyFlags` is meant to keep a user's
input from command line and as such should be immutable.
Use either a variable or the validated `InitConfig.KubernetesVersion`
field instead.
Currently kubeadm supports a couple of configuration versions - v1alpha3 and
v1beta1. The former is deprecated, but still supported.
To discourage users from using it and to speedup conversion to newer versions,
we disable the loading of deprecated configurations by all kubeadm
sub-commands, but "kubeadm config migrate".
v1alpha3 is still present and supported at source level, but cannot be used
directly with kubeadm and some of its internal APIs.
The added benefit to this is, that users won't need to lookup for an old
kubeadm binary after upgrade, just because they were stuck with a deprecated
config version for too long.
To achieve this, the following was done:
- ValidateSupportedVersion now has an allowDeprecated boolean parameter, that
controls if the function should return an error upon detecting deprecated
config version. Currently the only deprecated version is v1alpha3.
- ValidateSupportedVersion is made package private, because it's not used
outside of the package anyway.
- BytesToInitConfiguration and LoadJoinConfigurationFromFile are modified to
disallow loading of deprecated kubeadm config versions. An error message,
that points users to kubeadm config migrate is returned.
- MigrateOldConfig is still allowed to load deprecated kubeadm config versions.
- A bunch of tests were fixed to not expect success if v1alpha3 config is
supplied.
Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>
Moved all flag code from `staging/src/k8s.io/apiserver/pkg/util/[flag|globalflag]` to `component-base/cli/[flag|globalflag]` except for the term function because of unwanted dependencies.
Currently we maintain the state of the mode of interactiveness
by updating flags.nonInteractiveMode even if the flag hasn't been
set by the user.
Since the computation of the mode is done only once it's easier
and less error prone to calculate the mode in the function
sessionIsInteractive() without mutating any flags.
If /etc/kubeadm/amdin.conf doesn't exist kubeadm reset fails
with the error:
failed to load admin kubeconfig: open /root/.kube/config: no such file or directory
Fixed by properly checking if file exists before using it.
