This change enables hot reload of encryption config file when api server
flag --encryption-provider-config-automatic-reload is set to true. This
allows the user to change the encryption config file without restarting
kube-apiserver. The change is detected by polling the file and is done
by using fsnotify watcher. When file is updated it's process to generate
new set of transformers and close the old ones.
Signed-off-by: Nilekh Chaudhari <1626598+nilekhc@users.noreply.github.com>
This change adds a flag --encryption-provider-config-automatic-reload
which will be used to drive automatic reloading of the encryption
config at runtime. While this flag is set to true, or when KMS v2
plugins are used without KMS v1 plugins, the /healthz endpoints
associated with said plugins are collapsed into a single endpoint at
/healthz/kms-providers - in this state, it is not possible to
configure exclusions for specific KMS providers while including the
remaining ones - ex: using /readyz?exclude=kms-provider-1 to exclude
a particular KMS is not possible. This single healthz check handles
checking all configured KMS providers. When reloading is enabled
but no KMS providers are configured, it is a no-op.
k8s.io/apiserver does not support dynamic addition and removal of
healthz checks at runtime. Reloading will instead have a single
static healthz check and swap the underlying implementation at
runtime when a config change occurs.
Signed-off-by: Monis Khan <mok@microsoft.com>
This patch adds new Kubelet option topologyManagerPolicyOptions.
To introduce new TopologyManager options, first we need to introduce new
flag called `topology-manager-policy-options` to allow users to modify
behaviour of best-effort and restricted policies.
Signed-off-by: PiotrProkop <pprokop@nvidia.com>
CPUManager is going GA, thus it makes little sense
to keep the names of the internal configuration
variables `Experimental*`.
Trivial rename only.
Signed-off-by: Francesco Romani <fromani@redhat.com>
With graduation of device plugins to GA in 1.26, the feature gate is
enabled by default so `devicePluginEnabled` field no longer needs to
be passed at the time of Container Manager creation.
In addition to that, we remove the `ManagerStub` as it is no longer
needed.
Signed-off-by: Swati Sehgal <swsehgal@redhat.com>
For parity with `init` and `join`, the test file only
covers some basic scenarios and is expected to be expanded
when the config file for `kubeadm reset` is ready.
Signed-off-by: Dave Chen <dave.chen@arm.com>
The init config file fetched from cluster won't have `ignorePreflightErrors`
set, and shouldn't try to reuse it even it's set with any value.
Instead, it should be defined in reset config file and fetch from it when the
reset config is ready.
Signed-off-by: Dave Chen <dave.chen@arm.com>
It was saying `discovery.bootstrapToken` is invalid with empty value, while
it is actually `discovery.bootstrapToken.caCertHashes` invalid.
Signed-off-by: Dave Chen <dave.chen@arm.com>
Currently, there are some unit tests that are failing on Windows due to
various reasons:
- config options not supported on Windows.
- files not closed, which means that they cannot be removed / renamed.
- paths not properly joined (filepath.Join should be used).
- time.Now() is not as precise on Windows, which means that 2
consecutive calls may return the same timestamp.
- different error messages on Windows.
- files have \r\n line endings on Windows.
- /tmp directory being used, which might not exist on Windows. Instead,
the OS-specific Temp directory should be used.
- the default value for Kubelet's EvictionHard field was containing
OS-specific fields. This is now moved, the field is now set during
Kubelet's initialization, after the config file is read.
Kube/proxy, in NodeCIDR local detector mode, uses the node.Spec.PodCIDRs
field to build the Services iptables rules.
The Node object depends on the kubelet, but if kube-proxy runs as a
static pods or as a standalone binary, it is not possible to guarantee
that the values obtained at bootsrap are valid, causing traffic outages.
Kube-proxy has to react on node changes to avoid this problems, it
simply restarts if detect that the node PodCIDRs have changed.
In case that the Node has been deleted, kube-proxy will only log an
error and keep working, since it may break graceful shutdowns of the
node.
Some of the unit tests cannot pass on Windows due to various reasons:
- fsnotify does not have a Windows implementation.
- Proxy Mode IPVS not supported on Windows.
- Seccomp not supported on Windows.
- VolumeMode=Block is not supported on Windows.
- iSCSI volumes are mounted differently on Windows, and iscsiadm is a
Linux utility.
- All certs will be created under the folder of `/etc/kubernetes/tmp/kubeadm-join-dryrunxxx`
if the `dry-run` mode is enabled.
- Try to make each phase idempotent by resetting the cert dir with `dry-run` mode
Signed-off-by: Dave Chen <dave.chen@arm.com>
Previously, the err msg will repeat the token ID of the form "[a-z0-9]{6}"
if the token doesn't match with the desired format.
Signed-off-by: Dave Chen <dave.chen@arm.com>
Fix conversion errors
Changed the order
update
update
fix manaul coversions
keep the global parameter for backward compatibility
Address Wei's comments
Fix an error
Fix issues
Add unit tests for validation
Fix a comment
Address comments
Update comments
fix verifiation errors
Add tests for scheme_test.go
Convert percentageOfNodesToScore to pointer
Fix errors
Resolve conflicts
Fix testing errors
Address Wei's comments
Revert IntPtr to Int changes
Address comments
Not overrite percentageOfNodesToScore
Fix a bug
Fix a bug
change errs to err
Fix a nit
Remove duplication
Address comments
Fix lint warning
Fix an issue
Update comments
Clean up
Address comments
Revert changes to defaults
fix unit test error
Update
Fix tests
Use default PluginConfigs
The phase `kubeadm init phase upload-certs` intends to be used if
secret "kubeadm-certs" is expired and deleted.
But the help msg was saying this command cannot run on its own.
It's fine to run this command on its own to upload local certs to secret.
Signed-off-by: Dave Chen <dave.chen@arm.com>
This change updates the API server code to load the encryption
config once at start up instead of multiple times. Previously the
code would set up the storage transformers and the etcd healthz
checks in separate parse steps. This is problematic for KMS v2 key
ID based staleness checks which need to be able to assert that the
API server has a single view into the KMS plugin's current key ID.
Signed-off-by: Monis Khan <mok@microsoft.com>
- The sub-phases like `kubeadm reset phase cleanup-node` which
could be run independently would be able to support the `dry-run`
mode as well.
- Consistent with the sub-phases which support the `dry-run` mode
already, such as `kubeadm init phase control-plane apiserver`.
- Prepare for the day when each of those sub-phases could be run
independently.
Signed-off-by: Dave Chen <dave.chen@arm.com>
phase `kubeadm init phase kubeconfig/*` must run after the phase
`kubeadm init phase certs/ca` to get the client cert and key singed
by the CA.
print out the way to generate the CA file is more useful than just say
the file cannot be loaded.
Signed-off-by: Dave Chen <dave.chen@arm.com>
wire up feature_gate.go with metrics via AddMetrics method
Change-Id: I9b4f6b04c0f4eb9bcb198b16284393d21c774ad8
wire in metrics to kubernetes components
Change-Id: I6d4ef8b26f149f62b03f32d1658f04f3056fe4dc
rename metric since we're using the value to determine if enabled is true or false
Change-Id: I13a6b6df90a5ffb4b9c5b34fa187562413bea029
Update staging/src/k8s.io/component-base/featuregate/feature_gate.go
Co-authored-by: Jordan Liggitt <jordan@liggitt.net>
The generation of `RunData` for init and join is relative time consuming,
the data should be shared / reused whenever possible.
Signed-off-by: Dave Chen <dave.chen@arm.com>
Hi team, hope u all doing well.
I have checked TODO that to remove "retry" if feasible but it's important i think that it shouldn't be removed because it was used in every file on your repo.
Update idempotency.go
Update idempotency.go
Update idempotency.go
