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plugin/kubernetes: Watch EndpointSlices (#4209)

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* initial commit

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* convert endpointslices to object.endpoints

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* add opt hard coded for now

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* check that server supports endpointslice

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* fix import grouping

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* dont use endpoint slice in 1.17 or 1.18

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* bump kind/k8s in circle ci to latest

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* drop k8s to latest supported by kind

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* use endpointslice name as endoint Name; index by Service name

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* use index key comparison in nsAddrs()

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* add Index to object.Endpoint fixtures; fix direct endpoint name compares

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* add slice dup check and test

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* todo

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* add ep-slice skew dup test for reverse

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* nsaddrs: de-dup ep-slice skew dups; add test

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* remove todo

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* address various feedback

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* consolidate endpoint/slice informer code

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* fix endpoint informer consolidation; use clearer func name

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* log info; use major/minor fields

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* fix nsAddr and unit test

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* add latency tracking for endpointslices

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* endpointslice latency unit test & fix

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* code shuffling

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* rename endpointslices in tests

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* remove de-dup from nsAddrs and test

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>

* remove de-dup from findServices / test

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
This commit is contained in:
Chris O'Haver 2020-10-30 08:14:30 -04:00 • committed by GitHub
parent c840caf1ef
commit 272ccb195d
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16 changed files with 374 additions and 182 deletions
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34
plugin/kubernetes/kubernetes_test.go
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@ -137,8 +137,9 @@ func (APIConnServiceTest) EpIndex(string) []*object.Endpoints {
},
},
},
Name: "svc1",
Name: "svc1-slice1",
Namespace: "testns",
Index: object.EndpointsKey("svc1", "testns"),
},
{
Subsets: []object.EndpointSubset{
@ -151,22 +152,9 @@ func (APIConnServiceTest) EpIndex(string) []*object.Endpoints {
},
},
},
Name: "hdls1",
Namespace: "testns",
},
{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "172.0.0.3"},
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "hdls1",
Name: "hdls1-slice1",
Namespace: "testns",
Index: object.EndpointsKey("hdls1", "testns"),
},
{
Subsets: []object.EndpointSubset{
@ -194,8 +182,9 @@ func (APIConnServiceTest) EndpointsList() []*object.Endpoints {
},
},
},
Name: "svc1",
Name: "svc1-slice1",
Namespace: "testns",
Index: object.EndpointsKey("svc1", "testns"),
},
{
Subsets: []object.EndpointSubset{
@ -208,22 +197,24 @@ func (APIConnServiceTest) EndpointsList() []*object.Endpoints {
},
},
},
Name: "hdls1",
Name: "hdls1-slice1",
Namespace: "testns",
Index: object.EndpointsKey("hdls1", "testns"),
},
{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "172.0.0.3"},
{IP: "172.0.0.2"},
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "hdls1",
Name: "hdls1-slice2",
Namespace: "testns",
Index: object.EndpointsKey("hdls1", "testns"),
},
{
Subsets: []object.EndpointSubset{
@ -275,6 +266,9 @@ func TestServices(t *testing.T) {
// External Services
{qname: "external.testns.svc.interwebs.test.", qtype: dns.TypeCNAME, answer: svcAns{host: "coredns.io", key: "/" + coredns + "/test/interwebs/svc/testns/external"}},
// Headless Services
{qname: "hdls1.testns.svc.interwebs.test.", qtype: dns.TypeA, answer: svcAns{host: "172.0.0.2", key: "/" + coredns + "/test/interwebs/svc/testns/hdls1/172-0-0-2"}},
}
for i, test := range tests {