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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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53
plugin/kubernetes/reverse_test.go
View file

@ -56,14 +56,11 @@ func (APIConnReverseTest) SvcIndexReverse(ip string) []*object.Service {
}
func (APIConnReverseTest) EpIndexReverse(ip string) []*object.Endpoints {
ep1 := object.Endpoints{
ep1s1 := object.Endpoints{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "10.0.0.100", Hostname: "ep1a"},
{IP: "1234:abcd::1", Hostname: "ep1b"},
{IP: "fd00:77:30::a", Hostname: "ip6svc1ex"},
{IP: "fd00:77:30::2:9ba6", Hostname: "ip6svc1in"},
{IP: "10.0.0.99", Hostname: "double-ep"}, // this endpoint is used by two services
},
Ports: []object.EndpointPort{
@ -71,8 +68,41 @@ func (APIConnReverseTest) EpIndexReverse(ip string) []*object.Endpoints {
},
},
},
Name: "svc1",
Name: "svc1-slice1",
Namespace: "testns",
Index: object.EndpointsKey("svc1", "testns"),
}
ep1s2 := object.Endpoints{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "1234:abcd::1", Hostname: "ep1b"},
{IP: "fd00:77:30::a", Hostname: "ip6svc1ex"},
{IP: "fd00:77:30::2:9ba6", Hostname: "ip6svc1in"},
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "svc1-slice2",
Namespace: "testns",
Index: object.EndpointsKey("svc1", "testns"),
}
ep1s3 := object.Endpoints{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "10.0.0.100", Hostname: "ep1a"}, // duplicate endpointslice address
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "svc1-ccccc",
Namespace: "testns",
Index: object.EndpointsKey("svc1", "testns"),
}
ep2 := object.Endpoints{
Subsets: []object.EndpointSubset{
@ -85,20 +115,21 @@ func (APIConnReverseTest) EpIndexReverse(ip string) []*object.Endpoints {
},
},
},
Name: "svc2",
Name: "svc2-slice1",
Namespace: "testns",
Index: object.EndpointsKey("svc2", "testns"),
}
switch ip {
case "10.0.0.100":
fallthrough
case "1234:abcd::1":
fallthrough
case "fd00:77:30::a":
fallthrough
case "fd00:77:30::2:9ba6":
return []*object.Endpoints{&ep1}
case "10.0.0.99":
return []*object.Endpoints{&ep1, &ep2}
return []*object.Endpoints{&ep1s2}
case "10.0.0.100": // two EndpointSlices for a Service contain this IP (EndpointSlice skew)
return []*object.Endpoints{&ep1s1, &ep1s3}
case "10.0.0.99": // two different Services select this IP
return []*object.Endpoints{&ep1s1, &ep2}
}
return nil
}