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kube-proxy: fix error wrapping, error handling and deprecated methods

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Signed-off-by: Daman Arora <aroradaman@gmail.com>
This commit is contained in:
Daman Arora
2024-05-14 18:58:35 +05:30
parent 1608dc2b09
commit 210ed2fc41
2 changed files with 19 additions and 22 deletions
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18
cmd/kube-proxy/app/server.go
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@@ -270,7 +270,7 @@ func (o *Options) Complete(fs *pflag.FlagSet) error {
// command line flags have priority). Otherwise `--config
// ... -v=5` doesn't work (config resets verbosity even
// when it contains no logging settings).
copyLogsFromFlags(fs, &c.Logging)
_ = copyLogsFromFlags(fs, &c.Logging)
o.config = c
if err := o.initWatcher(); err != nil {
@@ -312,7 +312,7 @@ func copyLogsFromFlags(from *pflag.FlagSet, to *logsapi.LoggingConfiguration) er
return
}
if setErr := f.Value.Set(fsFlag.Value.String()); setErr != nil {
err = fmt.Errorf("copying flag %s value: %v", f.Name, setErr)
err = fmt.Errorf("copying flag %s value: %w", f.Name, setErr)
return
}
})
@@ -464,10 +464,10 @@ func addressFromDeprecatedFlags(addr string, port int32) string {
func newLenientSchemeAndCodecs() (*runtime.Scheme, *serializer.CodecFactory, error) {
lenientScheme := runtime.NewScheme()
if err := kubeproxyconfig.AddToScheme(lenientScheme); err != nil {
return nil, nil, fmt.Errorf("failed to add kube-proxy config API to lenient scheme: %v", err)
return nil, nil, fmt.Errorf("failed to add kube-proxy config API to lenient scheme: %w", err)
}
if err := kubeproxyconfigv1alpha1.AddToScheme(lenientScheme); err != nil {
return nil, nil, fmt.Errorf("failed to add kube-proxy config v1alpha1 API to lenient scheme: %v", err)
return nil, nil, fmt.Errorf("failed to add kube-proxy config v1alpha1 API to lenient scheme: %w", err)
}
lenientCodecs := serializer.NewCodecFactory(lenientScheme, serializer.DisableStrict)
return lenientScheme, &lenientCodecs, nil
@@ -505,7 +505,7 @@ func (o *Options) loadConfig(data []byte) (*kubeproxyconfig.KubeProxyConfigurati
if lenientErr != nil {
// Lenient decoding failed with the current version, return the
// original strict error.
return nil, fmt.Errorf("failed lenient decoding: %v", err)
return nil, fmt.Errorf("failed lenient decoding: %w", err)
}
// Continue with the v1alpha1 object that was decoded leniently, but emit a warning.
@@ -545,7 +545,7 @@ with the apiserver API to configure the proxy.`,
logs.InitLogs()
if err := logsapi.ValidateAndApplyAsField(&opts.config.Logging, utilfeature.DefaultFeatureGate, field.NewPath("logging")); err != nil {
return fmt.Errorf("initialize logging: %v", err)
return fmt.Errorf("initialize logging: %w", err)
}
cliflag.PrintFlags(cmd.Flags())
@@ -680,7 +680,7 @@ func newProxyServer(ctx context.Context, config *kubeproxyconfig.KubeProxyConfig
err, fatal := checkBadIPConfig(s, dualStackSupported)
if err != nil {
if fatal {
return nil, fmt.Errorf("kube-proxy configuration is incorrect: %v", err)
return nil, fmt.Errorf("kube-proxy configuration is incorrect: %w", err)
}
logger.Error(err, "Kube-proxy configuration may be incomplete or incorrect")
}
@@ -859,7 +859,7 @@ func serveHealthz(ctx context.Context, hz *healthcheck.ProxierHealthServer, errC
if err != nil {
logger.Error(err, "Healthz server failed")
if errCh != nil {
errCh <- fmt.Errorf("healthz server failed: %v", err)
errCh <- fmt.Errorf("healthz server failed: %w", err)
// if in hardfail mode, never retry again
blockCh := make(chan error)
<-blockCh
@@ -898,7 +898,7 @@ func serveMetrics(bindAddress string, proxyMode kubeproxyconfig.ProxyMode, enabl
fn := func() {
err := http.ListenAndServe(bindAddress, proxyMux)
if err != nil {
err = fmt.Errorf("starting metrics server failed: %v", err)
err = fmt.Errorf("starting metrics server failed: %w", err)
utilruntime.HandleError(err)
if errCh != nil {
errCh <- err