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remove duplicate ipvs check

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This commit is contained in:
louisgong 2020-04-07 22:04:53 +08:00
parent 4d0e86f0b8
commit d6ea9d7c4c
2 changed files with 7 additions and 13 deletions
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17
cmd/kube-proxy/app/server_others.go
View File

@ -159,7 +159,7 @@ func newProxyServer(
var proxier proxy.Provider
var detectLocalMode proxyconfigapi.LocalMode
proxyMode := getProxyMode(string(config.Mode), kernelHandler, ipsetInterface, iptables.LinuxKernelCompatTester{})
proxyMode := getProxyMode(string(config.Mode), canUseIPVS, iptables.LinuxKernelCompatTester{})
detectLocalMode, err = getDetectLocalMode(config)
if err != nil {
return nil, fmt.Errorf("cannot determine detect-local-mode: %v", err)
@ -553,28 +553,21 @@ func nodeIPTuple(bindAddress string) [2]net.IP {
return nodes
}
func getProxyMode(proxyMode string, khandle ipvs.KernelHandler, ipsetver ipvs.IPSetVersioner, kcompat iptables.KernelCompatTester) string {
func getProxyMode(proxyMode string, canUseIPVS bool, kcompat iptables.KernelCompatTester) string {
switch proxyMode {
case proxyModeUserspace:
return proxyModeUserspace
case proxyModeIPTables:
return tryIPTablesProxy(kcompat)
case proxyModeIPVS:
return tryIPVSProxy(khandle, ipsetver, kcompat)
return tryIPVSProxy(canUseIPVS, kcompat)
}
klog.Warningf("Unknown proxy mode %q, assuming iptables proxy", proxyMode)
return tryIPTablesProxy(kcompat)
}
func tryIPVSProxy(khandle ipvs.KernelHandler, ipsetver ipvs.IPSetVersioner, kcompat iptables.KernelCompatTester) string {
// guaranteed false on error, error only necessary for debugging
// IPVS Proxier relies on ip_vs_* kernel modules and ipset
useIPVSProxy, err := ipvs.CanUseIPVSProxier(khandle, ipsetver)
if err != nil {
// Try to fallback to iptables before falling back to userspace
utilruntime.HandleError(fmt.Errorf("can't determine whether to use ipvs proxy, error: %v", err))
}
if useIPVSProxy {
func tryIPVSProxy(canUseIPVS bool, kcompat iptables.KernelCompatTester) string {
if canUseIPVS {
return proxyModeIPVS
}

3
cmd/kube-proxy/app/server_others_test.go
View File

@ -145,7 +145,8 @@ func Test_getProxyMode(t *testing.T) {
modules: c.kmods,
kernelVersion: c.kernelVersion,
}
r := getProxyMode(c.flag, khandler, ipsetver, kcompater)
canUseIPVS, _ := ipvs.CanUseIPVSProxier(khandler, ipsetver)
r := getProxyMode(c.flag, canUseIPVS, kcompater)
if r != c.expected {
t.Errorf("Case[%d] Expected %q, got %q", i, c.expected, r)
}