add integration tests to verify the behaviour of the endpoints
and endpointslices controller with dual stack services.
Since services can be single or dual stack, endpoints should be
generated for each IP family in the endpoint slice controller.
The legacy endpoint controller only will generate endpoints
in the first IP family configured in the service.
integration fix
* api: structure change
* api: defaulting, conversion, and validation
* [FIX] validation: auto remove second ip/family when service changes to SingleStack
* [FIX] api: defaulting, conversion, and validation
* api-server: clusterIPs alloc, printers, storage and strategy
* [FIX] clusterIPs default on read
* alloc: auto remove second ip/family when service changes to SingleStack
* api-server: repair loop handling for clusterIPs
* api-server: force kubernetes default service into single stack
* api-server: tie dualstack feature flag with endpoint feature flag
* controller-manager: feature flag, endpoint, and endpointSlice controllers handling multi family service
* [FIX] controller-manager: feature flag, endpoint, and endpointSlicecontrollers handling multi family service
* kube-proxy: feature-flag, utils, proxier, and meta proxier
* [FIX] kubeproxy: call both proxier at the same time
* kubenet: remove forced pod IP sorting
* kubectl: modify describe to include ClusterIPs, IPFamilies, and IPFamilyPolicy
* e2e: fix tests that depends on IPFamily field AND add dual stack tests
* e2e: fix expected error message for ClusterIP immutability
* add integration tests for dualstack
the third phase of dual stack is a very complex change in the API,
basically it introduces Dual Stack services. Main changes are:
- It pluralizes the Service IPFamily field to IPFamilies,
and removes the singular field.
- It introduces a new field IPFamilyPolicyType that can take
3 values to express the "dual-stack(mad)ness" of the cluster:
SingleStack, PreferDualStack and RequireDualStack
- It pluralizes ClusterIP to ClusterIPs.
The goal is to add coverage to the services API operations,
taking into account the 6 different modes a cluster can have:
- single stack: IP4 or IPv6 (as of today)
- dual stack: IPv4 only, IPv6 only, IPv4 - IPv6, IPv6 - IPv4
* [FIX] add integration tests for dualstack
* generated data
* generated files
Co-authored-by: Antonio Ojea <aojea@redhat.com>
The kube_proxy SIGDescribe previously only had Network in the title
and made it more difficult to select just the test cases in the
kube_proxy file and would end up running anything with Network in the
text area of SIGDescribe e2e tests.
Signed-off-by: Christopher M. Luciano <cmluciano@us.ibm.com>
Simulating a cluster with 500 nodes in 3 zones, deploying 3, 12 and 27 Pods belonging to the same service.
Change-Id: I16425594012ea7bd24b888acedb12958360bff97
A spreading test is more meaningful with a greater number of Pods. However, we cannot always expect perfect spreading. We accept a skew of 2 for 5*z Pods, where z is the number of zones.
Change-Id: Iab0de06a95974fbfec604f003b550f15db618ebd
