* Add FeatureGate PodHostIPs
* Add HostIPs field and update PodIPs field
* Types conversion
* Add dropDisabledStatusFields
* Add HostIPs for kubelet
* Add fuzzer for PodStatus
* Add status.hostIPs in ConvertDownwardAPIFieldLabel
* Add status.hostIPs in validEnvDownwardAPIFieldPathExpressions
* Downward API support for status.hostIPs
* Add DownwardAPI validation for status.hostIPs
* Add e2e to check that hostIPs works
* Add e2e to check that Downward API works
* Regenerate
host-network pods IPs are obtained from the reported kubelet nodeIPs.
Historically, host-network podIPs are immutable once set, but when
we've added dual-stack support, we didn't consider that the secondary
IP address may not be present at the same time that the primary nodeIP.
If a secondary IP address is added to a node after the host-network pods
IPs are set, we can add the secondary host-network pod IP address
maintaining the current behavior of not updating the current podIPs on
host-network pods.
The feature gate gets locked to "true", with the goal to remove it in two
releases.
All code now can assume that the feature is enabled. Tests for "feature
disabled" are no longer needed and get removed.
Some code wasn't using the new helper functions yet. That gets changed while
touching those lines.
When adding the ephemeral volume feature, the special case for
PersistentVolumeClaim volume sources in kubelet's host path and node
limits checks was overlooked. An ephemeral volume source is another
way of referencing a claim and has to be treated the same way.
Remove the VolumeSubpath feature gate.
Feature gate convention has been updated since this was introduced to
indicate that they "are intended to be deprecated and removed after a
feature becomes GA or is dropped.".
The Kubelet always clears reason and message in generateAPIPodStatus
even when the phase is unchanged. It is reasonable that we preserve
the previous values when the phase does not change, and clear it
when the phase does change.
When a pod is evicted, this ensurse that the eviction message and
reason are propagated even in the face of subsequent updates. It also
preserves the message and reason if components beyond the Kubelet
choose to set that value.
To preserve the value we need to know the old phase, which requires
a change to convertStatusToAPIStatus so that both methods have
access to it.
runtimes may return an arbitrary number of Pod IPs, however, kubernetes
only takes into consideration the first one of each IP family.
The order of the IPs are the one defined by the Kubelet:
- default prefer IPv4
- if NodeIPs are defined, matching the first nodeIP family
PodIP is always the first IP of PodIPs.
The downward API must expose the same IPs and in the same order than
the pod.Status API object.
If Containerd is used on Windows, then we can also mount individual
files into containers (e.g.: /etc/hosts), which was not possible with Docker.
Checks if the container runtime is containerd, and if it is, then also
mount /etc/hosts file (to C:\Windows\System32\drivers\etc\hosts).
add host file write for podIPs
update tests
remove import alias
update type check
update type check
remove import alias
update open api spec
add tests
update test
add tests
address review comments
update imports
remove todo and import alias
This patch moves the HostUtil functionality from the util/mount package
to the volume/util/hostutil package.
All `*NewHostUtil*` calls are changed to return concrete types instead
of interfaces.
All callers are changed to use the `*NewHostUtil*` methods instead of
directly instantiating the concrete types.
This patch refactors pkg/util/mount to be more usable outside of
Kubernetes. This is done by refactoring mount.Interface to only contain
methods that are not K8s specific. Methods that are not relevant to
basic mount activities but still have OS-specific implementations are
now found in a mount.HostUtils interface.
