* Add integration tests for StatefulSetStartOrdinal feature
* Move expensive test setup (apiserver and running controller) to be run once in StatefulSetStartOrdinal parameterized tests
Adds integration tests for the following scenarios with
MultiCIDRRangeAllocator enabled:
- ClusterCIDR is released when an associated node is deleted.
- ClusterCIDR delete when a node is associated, validate the finalizer
behavior, make sure that deleted ClusterCIDR is cleaned up after the
associated node is deleted.
- ClusterCIDR marked as terminating due to deletion must not be used for
allocating PodCIDRs to new nodes.
- Tie break behavior when multiple ClusterCIDRs are eligible to
allocate PodCIDRs to a node.
Adds integration tests for the following scenarios with
MultiCIDRRangeAllocator enabled:
- ClusterCIDR is released when an associated node is deleted.
- ClusterCIDR delete when a node is associated, validate the finalizer
behavior, make sure that deleted ClusterCIDR is cleaned up after the
associated node is deleted.
- ClusterCIDR marked as terminating due to deletion must not be used for
allocating Pod CIDRs to new nodes.
- Tie break behavior when multiple ClusterCIDRs are eligible to
allocate Pod CIDRs to a node.
PVCs using the ReadWriteOncePod access mode can only be referenced by a
single pod. When a pod is scheduled that uses a ReadWriteOncePod PVC,
return "Unschedulable" if the PVC is already in-use in the cluster.
To support preemption, the "VolumeRestrictions" scheduler plugin
computes cycle state during the PreFilter phase. This cycle state
contains the number of references to the ReadWriteOncePod PVCs used by
the pod-to-be-scheduled.
During scheduler simulation (AddPod and RemovePod), we add and remove
reference counts from the cycle state if they use any of these
ReadWriteOncePod PVCs.
In the Filter phase, the scheduler checks if there are any PVC reference
conflicts, and returns "Unschedulable" if there is a conflict.
This is a required feature for the ReadWriteOncePod beta. See for more context:
https://github.com/kubernetes/enhancements/tree/master/keps/sig-storage/2485-read-write-once-pod-pv-access-mode#beta
The ClusterIP allocator tries to reserve on part of the ServiceCIDR
to allocate static IPs to the Services.
The heuristic of the allocator to obtain the offset was taking into
account the whole range size, not the IPs available in the range, the
subnet address and the broadcast address for IPv4 are not available.
This caused that for CIDRs with 16 hosts, /28 for IPv4 and /124 for
IPv6, the offset calculated was higher than the max number of available
addresses on the allocator, causing this to panic.
Change-Id: I6c6f527b0a600b3612be37769e405b8fb3dd33a8
we are saving this information in an env variable `KUBE_INTEGRATION_ETCD_URL`
So just pick it up from there when needed. Currently when someone uses
framework.RunCustomEtcd directly, the global variable is *not* set and the
code that uses `GetEtcdURL` returns empty string.
Signed-off-by: Davanum Srinivas <davanum@gmail.com>
The GlogSetter method is used by three components to change verbosity at
runtime through HTTP APIs. This used to work only for text output with klog
calls, but not for text output through the klog logger or for JSON output.
Now loggers can also provide a callback for changing their verbosity at
runtime. Implementing that implies that the Create factory method has to be
extended, which is an API break for the Go package, but not an API break for
the configuration file and command line flags, which is what matters for the
"api/v1" component API.
This significantly reduces the surface area of the fieldmanager package
by hiding all the private "managers" objects, as well as the interface
that was made specifically for these. There is no reason to configure
these.
