mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-03 19:58:17 +00:00
209 lines
7.1 KiB
Go
209 lines
7.1 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package route
|
|
|
|
import (
|
|
"net"
|
|
"testing"
|
|
"time"
|
|
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/cloudprovider"
|
|
fake_cloud "k8s.io/kubernetes/pkg/cloudprovider/providers/fake"
|
|
)
|
|
|
|
func TestIsResponsibleForRoute(t *testing.T) {
|
|
myClusterName := "my-awesome-cluster"
|
|
myClusterRoute := "my-awesome-cluster-12345678-90ab-cdef-1234-567890abcdef"
|
|
testCases := []struct {
|
|
clusterCIDR string
|
|
routeName string
|
|
routeCIDR string
|
|
expectedResponsible bool
|
|
}{
|
|
// Routes that belong to this cluster
|
|
{"10.244.0.0/16", myClusterRoute, "10.244.0.0/24", true},
|
|
{"10.244.0.0/16", myClusterRoute, "10.244.10.0/24", true},
|
|
{"10.244.0.0/16", myClusterRoute, "10.244.255.0/24", true},
|
|
{"10.244.0.0/14", myClusterRoute, "10.244.0.0/24", true},
|
|
{"10.244.0.0/14", myClusterRoute, "10.247.255.0/24", true},
|
|
// Routes that match our naming/tagging scheme, but are outside our cidr
|
|
{"10.244.0.0/16", myClusterRoute, "10.224.0.0/24", false},
|
|
{"10.244.0.0/16", myClusterRoute, "10.0.10.0/24", false},
|
|
{"10.244.0.0/16", myClusterRoute, "10.255.255.0/24", false},
|
|
{"10.244.0.0/14", myClusterRoute, "10.248.0.0/24", false},
|
|
{"10.244.0.0/14", myClusterRoute, "10.243.255.0/24", false},
|
|
}
|
|
for i, testCase := range testCases {
|
|
_, cidr, err := net.ParseCIDR(testCase.clusterCIDR)
|
|
if err != nil {
|
|
t.Errorf("%d. Error in test case: unparsable cidr %q", i, testCase.clusterCIDR)
|
|
}
|
|
rc := New(nil, nil, myClusterName, cidr)
|
|
route := &cloudprovider.Route{
|
|
Name: testCase.routeName,
|
|
TargetInstance: "doesnt-matter-for-this-test",
|
|
DestinationCIDR: testCase.routeCIDR,
|
|
}
|
|
if resp := rc.isResponsibleForRoute(route); resp != testCase.expectedResponsible {
|
|
t.Errorf("%d. isResponsibleForRoute() = %t; want %t", i, resp, testCase.expectedResponsible)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReconcile(t *testing.T) {
|
|
cluster := "my-k8s"
|
|
testCases := []struct {
|
|
nodes []api.Node
|
|
initialRoutes []*cloudprovider.Route
|
|
expectedRoutes []*cloudprovider.Route
|
|
}{
|
|
// 2 nodes, routes already there
|
|
{
|
|
nodes: []api.Node{
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-1", UID: "01"}, Spec: api.NodeSpec{PodCIDR: "10.120.0.0/24"}},
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-2", UID: "02"}, Spec: api.NodeSpec{PodCIDR: "10.120.1.0/24"}},
|
|
},
|
|
initialRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
expectedRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
},
|
|
// 2 nodes, one route already there
|
|
{
|
|
nodes: []api.Node{
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-1", UID: "01"}, Spec: api.NodeSpec{PodCIDR: "10.120.0.0/24"}},
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-2", UID: "02"}, Spec: api.NodeSpec{PodCIDR: "10.120.1.0/24"}},
|
|
},
|
|
initialRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
},
|
|
expectedRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
},
|
|
// 2 nodes, no routes yet
|
|
{
|
|
nodes: []api.Node{
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-1", UID: "01"}, Spec: api.NodeSpec{PodCIDR: "10.120.0.0/24"}},
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-2", UID: "02"}, Spec: api.NodeSpec{PodCIDR: "10.120.1.0/24"}},
|
|
},
|
|
initialRoutes: []*cloudprovider.Route{},
|
|
expectedRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
},
|
|
// 2 nodes, a few too many routes
|
|
{
|
|
nodes: []api.Node{
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-1", UID: "01"}, Spec: api.NodeSpec{PodCIDR: "10.120.0.0/24"}},
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-2", UID: "02"}, Spec: api.NodeSpec{PodCIDR: "10.120.1.0/24"}},
|
|
},
|
|
initialRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
{cluster + "-03", "node-3", "10.120.2.0/24"},
|
|
{cluster + "-04", "node-4", "10.120.3.0/24"},
|
|
},
|
|
expectedRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
},
|
|
// 2 nodes, 2 routes, but only 1 is right
|
|
{
|
|
nodes: []api.Node{
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-1", UID: "01"}, Spec: api.NodeSpec{PodCIDR: "10.120.0.0/24"}},
|
|
{ObjectMeta: api.ObjectMeta{Name: "node-2", UID: "02"}, Spec: api.NodeSpec{PodCIDR: "10.120.1.0/24"}},
|
|
},
|
|
initialRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-03", "node-3", "10.120.2.0/24"},
|
|
},
|
|
expectedRoutes: []*cloudprovider.Route{
|
|
{cluster + "-01", "node-1", "10.120.0.0/24"},
|
|
{cluster + "-02", "node-2", "10.120.1.0/24"},
|
|
},
|
|
},
|
|
}
|
|
for i, testCase := range testCases {
|
|
cloud := &fake_cloud.FakeCloud{RouteMap: make(map[string]*fake_cloud.FakeRoute)}
|
|
for _, route := range testCase.initialRoutes {
|
|
fakeRoute := &fake_cloud.FakeRoute{}
|
|
fakeRoute.ClusterName = cluster
|
|
fakeRoute.Route = *route
|
|
cloud.RouteMap[route.Name] = fakeRoute
|
|
}
|
|
routes, ok := cloud.Routes()
|
|
if !ok {
|
|
t.Error("Error in test: fake_cloud doesn't support Routes()")
|
|
}
|
|
_, cidr, _ := net.ParseCIDR("10.120.0.0/16")
|
|
rc := New(routes, nil, cluster, cidr)
|
|
if err := rc.reconcile(testCase.nodes, testCase.initialRoutes); err != nil {
|
|
t.Errorf("%d. Error from rc.reconcile(): %v", i, err)
|
|
}
|
|
var finalRoutes []*cloudprovider.Route
|
|
var err error
|
|
timeoutChan := time.After(200 * time.Millisecond)
|
|
tick := time.NewTicker(10 * time.Millisecond)
|
|
defer tick.Stop()
|
|
poll:
|
|
for {
|
|
select {
|
|
case <-tick.C:
|
|
if finalRoutes, err = routes.ListRoutes(cluster); err == nil && routeListEqual(finalRoutes, testCase.expectedRoutes) {
|
|
break poll
|
|
}
|
|
case <-timeoutChan:
|
|
t.Errorf("%d. rc.reconcile() = %v, routes:\n%v\nexpected: nil, routes:\n%v\n", i, err, flatten(finalRoutes), flatten(testCase.expectedRoutes))
|
|
break poll
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func routeListEqual(list1, list2 []*cloudprovider.Route) bool {
|
|
if len(list1) != len(list2) {
|
|
return false
|
|
}
|
|
routeMap1 := make(map[string]*cloudprovider.Route)
|
|
for _, route1 := range list1 {
|
|
routeMap1[route1.Name] = route1
|
|
}
|
|
for _, route2 := range list2 {
|
|
if route1, exists := routeMap1[route2.Name]; !exists || *route1 != *route2 {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func flatten(list []*cloudprovider.Route) []cloudprovider.Route {
|
|
var structList []cloudprovider.Route
|
|
for _, route := range list {
|
|
structList = append(structList, *route)
|
|
}
|
|
return structList
|
|
}
|