mirror of
https://github.com/k3s-io/kubernetes.git
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Move linux-only getProxyMode tests to a linux-only file.
This commit is contained in:
Ryan Hitchman
247
cmd/kube-proxy/app/server_others_test.go
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247
cmd/kube-proxy/app/server_others_test.go
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@@ -0,0 +1,247 @@
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// +build !windows
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"fmt"
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"testing"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/kubernetes/pkg/proxy/ipvs"
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"k8s.io/kubernetes/pkg/util/iptables"
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)
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func Test_getProxyMode(t *testing.T) {
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var cases = []struct {
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flag string
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annotationKey string
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annotationVal string
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iptablesVersion string
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ipsetVersion string
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kmods []string
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kernelCompat bool
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iptablesError error
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ipsetError error
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expected string
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}{
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{ // flag says userspace
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flag: "userspace",
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, error detecting version
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flag: "iptables",
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iptablesError: fmt.Errorf("oops!"),
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version too low
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flag: "iptables",
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iptablesVersion: "0.0.0",
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version ok, kernel not compatible
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flag: "iptables",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version ok, kernel is compatible
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flag: "iptables",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // detect, error
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flag: "",
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iptablesError: fmt.Errorf("oops!"),
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expected: proxyModeUserspace,
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},
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{ // detect, version too low
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flag: "",
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iptablesVersion: "0.0.0",
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expected: proxyModeUserspace,
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},
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{ // detect, version ok, kernel not compatible
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flag: "",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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{ // detect, version ok, kernel is compatible
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flag: "",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // specify ipvs, feature gateway disabled, iptables version ok, kernel is compatible
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flag: "ipvs",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // specify ipvs, feature gateway disabled, iptables version too low
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flag: "ipvs",
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iptablesVersion: "0.0.0",
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expected: proxyModeUserspace,
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},
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{ // specify ipvs, feature gateway disabled, iptables version ok, kernel is not compatible
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flag: "ipvs",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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}
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for i, c := range cases {
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versioner := &fakeIPTablesVersioner{c.iptablesVersion, c.iptablesError}
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kcompater := &fakeKernelCompatTester{c.kernelCompat}
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ipsetver := &fakeIPSetVersioner{c.ipsetVersion, c.ipsetError}
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khandler := &fakeKernelHandler{c.kmods}
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r := getProxyMode(c.flag, versioner, khandler, ipsetver, kcompater)
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if r != c.expected {
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t.Errorf("Case[%d] Expected %q, got %q", i, c.expected, r)
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}
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}
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}
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// This is a coarse test, but it offers some modicum of confidence as the code is evolved.
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func Test_getProxyModeEnableFeatureGateway(t *testing.T) {
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// enable IPVS feature gateway
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utilfeature.DefaultFeatureGate.Set("SupportIPVSProxyMode=true")
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var cases = []struct {
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flag string
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iptablesVersion string
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ipsetVersion string
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kernelCompat bool
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iptablesError error
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ipsetError error
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mods []string
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expected string
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}{
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{ // flag says userspace
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flag: "userspace",
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, error detecting version
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flag: "iptables",
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iptablesError: fmt.Errorf("oops!"),
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version too low
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flag: "iptables",
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iptablesVersion: "0.0.0",
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version ok, kernel not compatible
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flag: "iptables",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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{ // flag says iptables, version ok, kernel is compatible
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flag: "iptables",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // detect, error
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flag: "",
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iptablesError: fmt.Errorf("oops!"),
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expected: proxyModeUserspace,
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},
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{ // detect, version too low
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flag: "",
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iptablesVersion: "0.0.0",
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expected: proxyModeUserspace,
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},
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{ // detect, version ok, kernel not compatible
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flag: "",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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{ // detect, version ok, kernel is compatible
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flag: "",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // detect, version ok, kernel is compatible
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flag: "",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // flag says ipvs, ipset version ok, kernel modules installed
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flag: "ipvs",
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mods: []string{"ip_vs", "ip_vs_rr", "ip_vs_wrr", "ip_vs_sh", "nf_conntrack_ipv4"},
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ipsetVersion: ipvs.MinIPSetCheckVersion,
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expected: proxyModeIPVS,
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},
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{ // flag says ipvs, ipset version too low, fallback on iptables mode
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flag: "ipvs",
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mods: []string{"ip_vs", "ip_vs_rr", "ip_vs_wrr", "ip_vs_sh", "nf_conntrack_ipv4"},
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ipsetVersion: "0.0",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // flag says ipvs, bad ipset version, fallback on iptables mode
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flag: "ipvs",
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mods: []string{"ip_vs", "ip_vs_rr", "ip_vs_wrr", "ip_vs_sh", "nf_conntrack_ipv4"},
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ipsetVersion: "a.b.c",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // flag says ipvs, required kernel modules are not installed, fallback on iptables mode
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flag: "ipvs",
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mods: []string{"foo", "bar", "baz"},
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ipsetVersion: ipvs.MinIPSetCheckVersion,
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: true,
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expected: proxyModeIPTables,
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},
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{ // flag says ipvs, required kernel modules are not installed, iptables version too old, fallback on userspace mode
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flag: "ipvs",
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mods: []string{"foo", "bar", "baz"},
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ipsetVersion: ipvs.MinIPSetCheckVersion,
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iptablesVersion: "0.0.0",
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kernelCompat: true,
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expected: proxyModeUserspace,
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},
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{ // flag says ipvs, ipset version too low, iptables version too old, kernel not compatible, fallback on userspace mode
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flag: "ipvs",
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mods: []string{"ip_vs", "ip_vs_rr", "ip_vs_wrr", "ip_vs_sh", "nf_conntrack_ipv4"},
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ipsetVersion: "0.0",
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iptablesVersion: iptables.MinCheckVersion,
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kernelCompat: false,
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expected: proxyModeUserspace,
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},
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}
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for i, c := range cases {
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versioner := &fakeIPTablesVersioner{c.iptablesVersion, c.iptablesError}
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kcompater := &fakeKernelCompatTester{c.kernelCompat}
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ipsetver := &fakeIPSetVersioner{c.ipsetVersion, c.ipsetError}
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khandle := &fakeKernelHandler{c.mods}
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r := getProxyMode(c.flag, versioner, khandle, ipsetver, kcompater)
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if r != c.expected {
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t.Errorf("Case[%d] Expected %q, got %q", i, c.expected, r)
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}
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}
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}
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