github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-09-24 03:18:57 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #87117 from aojea/proxyv6LB

Browse Source 
kube-proxy crash when load balancers use a different IP family
This commit is contained in:
Kubernetes Prow Robot
2020-02-13 22:44:17 -08:00
committed by GitHub
parent 3273cd99b1 11263bb57f
commit 48434c3677
3 changed files with 185 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
pkg/proxy/util/utils_test.go
View File

@@ -537,3 +537,96 @@ func TestShuffleStrings(t *testing.T) {
}
}
}
func TestFilterIncorrectIPVersion(t *testing.T) {
testCases := []struct {
desc string
ipString []string
wantIPv6 bool
expectCorrect []string
expectIncorrect []string
}{
{
desc: "empty input IPv4",
ipString: []string{},
wantIPv6: false,
expectCorrect: nil,
expectIncorrect: nil,
},
{
desc: "empty input IPv6",
ipString: []string{},
wantIPv6: true,
expectCorrect: nil,
expectIncorrect: nil,
},
{
desc: "want IPv4 and receive IPv6",
ipString: []string{"fd00:20::1"},
wantIPv6: false,
expectCorrect: nil,
expectIncorrect: []string{"fd00:20::1"},
},
{
desc: "want IPv6 and receive IPv4",
ipString: []string{"192.168.200.2"},
wantIPv6: true,
expectCorrect: nil,
expectIncorrect: []string{"192.168.200.2"},
},
{
desc: "want IPv6 and receive IPv4 and IPv6",
ipString: []string{"192.168.200.2", "192.1.34.23", "fd00:20::1", "2001:db9::3"},
wantIPv6: true,
expectCorrect: []string{"fd00:20::1", "2001:db9::3"},
expectIncorrect: []string{"192.168.200.2", "192.1.34.23"},
},
{
desc: "want IPv4 and receive IPv4 and IPv6",
ipString: []string{"192.168.200.2", "192.1.34.23", "fd00:20::1", "2001:db9::3"},
wantIPv6: false,
expectCorrect: []string{"192.168.200.2", "192.1.34.23"},
expectIncorrect: []string{"fd00:20::1", "2001:db9::3"},
},
{
desc: "want IPv4 and receive IPv4 only",
ipString: []string{"192.168.200.2", "192.1.34.23"},
wantIPv6: false,
expectCorrect: []string{"192.168.200.2", "192.1.34.23"},
expectIncorrect: nil,
},
{
desc: "want IPv6 and receive IPv4 only",
ipString: []string{"192.168.200.2", "192.1.34.23"},
wantIPv6: true,
expectCorrect: nil,
expectIncorrect: []string{"192.168.200.2", "192.1.34.23"},
},
{
desc: "want IPv4 and receive IPv6 only",
ipString: []string{"fd00:20::1", "2001:db9::3"},
wantIPv6: false,
expectCorrect: nil,
expectIncorrect: []string{"fd00:20::1", "2001:db9::3"},
},
{
desc: "want IPv6 and receive IPv6 only",
ipString: []string{"fd00:20::1", "2001:db9::3"},
wantIPv6: true,
expectCorrect: []string{"fd00:20::1", "2001:db9::3"},
expectIncorrect: nil,
},
}
for _, testcase := range testCases {
t.Run(testcase.desc, func(t *testing.T) {
correct, incorrect := FilterIncorrectIPVersion(testcase.ipString, testcase.wantIPv6)
if !reflect.DeepEqual(testcase.expectCorrect, correct) {
t.Errorf("Test %v failed: expected %v, got %v", testcase.desc, testcase.expectCorrect, correct)
}
if !reflect.DeepEqual(testcase.expectIncorrect, incorrect) {
t.Errorf("Test %v failed: expected %v, got %v", testcase.desc, testcase.expectIncorrect, incorrect)
}
})
}
}