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AWS: Remove blackhole routes in our managed range

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Blackhole routes otherwise acccumulate unboundedly.  We also are careful
to ensure that we do so only within the managed range, which requires
enlisting the help of the routecontroller.

Fix #47524
This commit is contained in:
Justin Santa Barbara
2017-06-14 22:34:15 -04:00
parent ad43147e77
commit 11f8886f12
4 changed files with 88 additions and 33 deletions
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77
pkg/controller/route/routecontroller_test.go
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@@ -97,12 +97,12 @@ func TestReconcile(t *testing.T) {
&node2,
},
initialRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
@@ -114,11 +114,11 @@ func TestReconcile(t *testing.T) {
&node2,
},
initialRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
@@ -131,8 +131,8 @@ func TestReconcile(t *testing.T) {
},
initialRoutes: []*cloudprovider.Route{},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
@@ -144,14 +144,14 @@ func TestReconcile(t *testing.T) {
&node2,
},
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"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
{cluster + "-03", "node-3", "10.120.2.0/24", false},
{cluster + "-04", "node-4", "10.120.3.0/24", false},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
@@ -163,12 +163,12 @@ func TestReconcile(t *testing.T) {
&node2,
},
initialRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-03", "node-3", "10.120.2.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-03", "node-3", "10.120.2.0/24", false},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-02", "node-2", "10.120.1.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
@@ -181,11 +181,48 @@ func TestReconcile(t *testing.T) {
},
initialRoutes: []*cloudprovider.Route{},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24"},
{cluster + "-01", "node-1", "10.120.0.0/24", false},
},
expectedNetworkUnavailable: []bool{true, false},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, nodeNoCidr}}),
},
// 2 nodes, an extra blackhole route in our range
{
nodes: []*v1.Node{
&node1,
&node2,
},
initialRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
{cluster + "-03", "", "10.120.2.0/24", true},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
},
// 2 nodes, an extra blackhole route not in our range
{
nodes: []*v1.Node{
&node1,
&node2,
},
initialRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
{cluster + "-03", "", "10.1.2.0/24", true},
},
expectedRoutes: []*cloudprovider.Route{
{cluster + "-01", "node-1", "10.120.0.0/24", false},
{cluster + "-02", "node-2", "10.120.1.0/24", false},
{cluster + "-03", "", "10.1.2.0/24", true},
},
expectedNetworkUnavailable: []bool{true, true},
clientset: fake.NewSimpleClientset(&v1.NodeList{Items: []v1.Node{node1, node2}}),
},
}
for i, testCase := range testCases {
cloud := &fakecloud.FakeCloud{RouteMap: make(map[string]*fakecloud.FakeRoute)}