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dual stack services (#91824)

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* 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>
This commit is contained in:
Khaled Henidak (Kal)
2020-10-26 13:15:59 -07:00
committed by GitHub
parent d0e06cf3e0
commit 6675eba3ef
84 changed files with 11170 additions and 3514 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
pkg/proxy/endpointslicecache_test.go
View File

@@ -151,7 +151,7 @@ func TestEndpointsMapFromESC(t *testing.T) {
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
esCache := NewEndpointSliceCache(tc.hostname, nil, nil, nil)
esCache := NewEndpointSliceCache(tc.hostname, v1.IPv4Protocol, nil, nil)
cmc := newCacheMutationCheck(tc.endpointSlices)
for _, endpointSlice := range tc.endpointSlices {
@@ -189,7 +189,7 @@ func TestEndpointInfoByServicePort(t *testing.T) {
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
esCache := NewEndpointSliceCache(tc.hostname, nil, nil, nil)
esCache := NewEndpointSliceCache(tc.hostname, v1.IPv4Protocol, nil, nil)
for _, endpointSlice := range tc.endpointSlices {
esCache.updatePending(endpointSlice, false)
@@ -225,7 +225,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged bool
}{
"identical slices, ports only": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port80},
@@ -237,7 +237,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: false,
},
"identical slices, ports out of order": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443, port80},
@@ -249,7 +249,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: false,
},
"port removed": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443, port80},
@@ -261,7 +261,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: true,
},
"port added": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443},
@@ -273,7 +273,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: true,
},
"identical with endpoints": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443},
@@ -287,7 +287,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: false,
},
"identical with endpoints out of order": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443},
@@ -301,7 +301,7 @@ func TestEsInfoChanged(t *testing.T) {
expectChanged: false,
},
"identical with endpoint added": {
cache: NewEndpointSliceCache("", nil, nil, nil),
cache: NewEndpointSliceCache("", v1.IPv4Protocol, nil, nil),
initialSlice: &discovery.EndpointSlice{
ObjectMeta: objMeta,
Ports: []discovery.EndpointPort{port443},