mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-26 05:03:09 +00:00
Migrated server.go, ipvs/proxier.go(partial) to structured logging (#105769)
* fixed improperly migrated logs * fixed improperly migrated logs * fixed improperly migrated logs * fixed improperly migrated logs * Update cmd/kube-proxy/app/server.go Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com> * Update pkg/proxy/ipvs/proxier.go Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com> * Update pkg/proxy/ipvs/proxier.go Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com> * Update pkg/proxy/ipvs/proxier.go Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com> * Update pkg/proxy/ipvs/proxier.go Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com> Co-authored-by: Marek Siarkowicz <marek.siarkowicz@protonmail.com>
This commit is contained in:
Shivanshu Raj Shrivastava
GitHub
parent
e461ebeea0
commit
d3f81a1be6
@ -222,7 +222,7 @@ func NewOptions() *Options {
|
||||
// Complete completes all the required options.
|
||||
func (o *Options) Complete() error {
|
||||
if len(o.ConfigFile) == 0 && len(o.WriteConfigTo) == 0 {
|
||||
klog.InfoS("WARNING: all flags other than --config, --write-config-to, and --cleanup are deprecated. Please begin using a config file ASAP")
|
||||
klog.InfoS("Warning, all flags other than --config, --write-config-to, and --cleanup are deprecated, please begin using a config file ASAP")
|
||||
o.config.HealthzBindAddress = addressFromDeprecatedFlags(o.config.HealthzBindAddress, o.healthzPort)
|
||||
o.config.MetricsBindAddress = addressFromDeprecatedFlags(o.config.MetricsBindAddress, o.metricsPort)
|
||||
}
|
||||
@ -498,7 +498,8 @@ with the apiserver API to configure the proxy.`,
|
||||
}
|
||||
|
||||
if err := opts.Run(); err != nil {
|
||||
klog.Exit(err)
|
||||
klog.ErrorS(err, "Error running ProxyServer")
|
||||
os.Exit(1)
|
||||
}
|
||||
},
|
||||
Args: func(cmd *cobra.Command, args []string) error {
|
||||
@ -560,7 +561,7 @@ func createClients(config componentbaseconfig.ClientConnectionConfiguration, mas
|
||||
var err error
|
||||
|
||||
if len(config.Kubeconfig) == 0 && len(masterOverride) == 0 {
|
||||
klog.InfoS("Neither kubeconfig file nor master URL was specified. Falling back to in-cluster config")
|
||||
klog.InfoS("Neither kubeconfig file nor master URL was specified, falling back to in-cluster config")
|
||||
kubeConfig, err = rest.InClusterConfig()
|
||||
} else {
|
||||
// This creates a client, first loading any specified kubeconfig
|
||||
@ -843,7 +844,7 @@ func detectNodeIP(client clientset.Interface, hostname, bindAddress string) net.
|
||||
nodeIP = utilnode.GetNodeIP(client, hostname)
|
||||
}
|
||||
if nodeIP == nil {
|
||||
klog.V(0).Infof("can't determine this node's IP, assuming 127.0.0.1; if this is incorrect, please set the --bind-address flag")
|
||||
klog.V(0).InfoS("Can't determine this node's IP, assuming 127.0.0.1; if this is incorrect, please set the --bind-address flag")
|
||||
nodeIP = netutils.ParseIPSloppy("127.0.0.1")
|
||||
}
|
||||
return nodeIP
|
||||
|
||||
@ -361,7 +361,7 @@ func NewProxier(ipt utiliptables.Interface,
|
||||
// are connected to a Linux bridge (but not SDN bridges). Until most
|
||||
// plugins handle this, log when config is missing
|
||||
if val, err := sysctl.GetSysctl(sysctlBridgeCallIPTables); err == nil && val != 1 {
|
||||
klog.InfoS("Missing br-netfilter module or unset sysctl br-nf-call-iptables; proxy may not work as intended")
|
||||
klog.InfoS("Missing br-netfilter module or unset sysctl br-nf-call-iptables, proxy may not work as intended")
|
||||
}
|
||||
|
||||
// Set the conntrack sysctl we need for
|
||||
@ -378,7 +378,7 @@ func NewProxier(ipt utiliptables.Interface,
|
||||
return nil, fmt.Errorf("error parsing kernel version %q: %v", kernelVersionStr, err)
|
||||
}
|
||||
if kernelVersion.LessThan(version.MustParseGeneric(connReuseMinSupportedKernelVersion)) {
|
||||
klog.ErrorS(nil, fmt.Sprintf("can't set sysctl %s, kernel version must be at least %s", sysctlConnReuse, connReuseMinSupportedKernelVersion))
|
||||
klog.ErrorS(nil, "Can't set sysctl, kernel version doesn't satisfy minimum version requirements", "sysctl", sysctlConnReuse, "minimumKernelVersion", connReuseMinSupportedKernelVersion)
|
||||
} else if kernelVersion.AtLeast(version.MustParseGeneric(connReuseFixedKernelVersion)) {
|
||||
// https://github.com/kubernetes/kubernetes/issues/93297
|
||||
klog.V(2).InfoS("Left as-is", "sysctl", sysctlConnReuse)
|
||||
@ -421,7 +421,7 @@ func NewProxier(ipt utiliptables.Interface,
|
||||
// current system timeout should be preserved
|
||||
if tcpTimeout > 0 || tcpFinTimeout > 0 || udpTimeout > 0 {
|
||||
if err := ipvs.ConfigureTimeouts(tcpTimeout, tcpFinTimeout, udpTimeout); err != nil {
|
||||
klog.ErrorS(err, "failed to configure IPVS timeouts")
|
||||
klog.ErrorS(err, "Failed to configure IPVS timeouts")
|
||||
}
|
||||
}
|
||||
|
||||
@ -434,7 +434,7 @@ func NewProxier(ipt utiliptables.Interface,
|
||||
ipFamily = v1.IPv6Protocol
|
||||
}
|
||||
|
||||
klog.V(2).InfoS("record nodeIP and family", "nodeIP", nodeIP, "family", ipFamily)
|
||||
klog.V(2).InfoS("Record nodeIP and family", "nodeIP", nodeIP, "family", ipFamily)
|
||||
|
||||
if len(scheduler) == 0 {
|
||||
klog.InfoS("IPVS scheduler not specified, use rr by default")
|
||||
@ -447,7 +447,7 @@ func NewProxier(ipt utiliptables.Interface,
|
||||
nodePortAddresses = ipFamilyMap[ipFamily]
|
||||
// Log the IPs not matching the ipFamily
|
||||
if ips, ok := ipFamilyMap[utilproxy.OtherIPFamily(ipFamily)]; ok && len(ips) > 0 {
|
||||
klog.InfoS("found node IPs of the wrong family", "ipFamily", ipFamily, "ips", strings.Join(ips, ","))
|
||||
klog.InfoS("Found node IPs of the wrong family", "ipFamily", ipFamily, "IPs", ips)
|
||||
}
|
||||
|
||||
// excludeCIDRs has been validated before, here we just parse it to IPNet list
|
||||
@ -620,7 +620,7 @@ func (handle *LinuxKernelHandler) GetModules() ([]string, error) {
|
||||
// Find out loaded kernel modules. If this is a full static kernel it will try to verify if the module is compiled using /boot/config-KERNELVERSION
|
||||
modulesFile, err := os.Open("/proc/modules")
|
||||
if err == os.ErrNotExist {
|
||||
klog.ErrorS(err, "Failed to read file /proc/modules. Assuming this is a kernel without loadable modules support enabled")
|
||||
klog.ErrorS(err, "Failed to read file /proc/modules, assuming this is a kernel without loadable modules support enabled")
|
||||
kernelConfigFile := fmt.Sprintf("/boot/config-%s", kernelVersionStr)
|
||||
kConfig, err := ioutil.ReadFile(kernelConfigFile)
|
||||
if err != nil {
|
||||
@ -646,7 +646,7 @@ func (handle *LinuxKernelHandler) GetModules() ([]string, error) {
|
||||
builtinModsFilePath := fmt.Sprintf("/lib/modules/%s/modules.builtin", kernelVersionStr)
|
||||
b, err := ioutil.ReadFile(builtinModsFilePath)
|
||||
if err != nil {
|
||||
klog.ErrorS(err, "Failed to read builtin modules file. You can ignore this message when kube-proxy is running inside container without mounting /lib/modules", "filePath", builtinModsFilePath)
|
||||
klog.ErrorS(err, "Failed to read builtin modules file, you can ignore this message when kube-proxy is running inside container without mounting /lib/modules", "filePath", builtinModsFilePath)
|
||||
}
|
||||
|
||||
for _, module := range ipvsModules {
|
||||
@ -656,8 +656,8 @@ func (handle *LinuxKernelHandler) GetModules() ([]string, error) {
|
||||
// Try to load the required IPVS kernel modules if not built in
|
||||
err := handle.executor.Command("modprobe", "--", module).Run()
|
||||
if err != nil {
|
||||
klog.InfoS("Failed to load kernel module with modprobe. "+
|
||||
"You can ignore this message when kube-proxy is running inside container without mounting /lib/modules", "moduleName", module)
|
||||
klog.InfoS("Failed to load kernel module with modprobe, "+
|
||||
"you can ignore this message when kube-proxy is running inside container without mounting /lib/modules", "moduleName", module)
|
||||
} else {
|
||||
lmods = append(lmods, module)
|
||||
}
|
||||
@ -804,7 +804,7 @@ func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset
|
||||
if ipvs != nil {
|
||||
err := ipvs.Flush()
|
||||
if err != nil {
|
||||
klog.ErrorS(err, "Error flushing IPVS rules")
|
||||
klog.ErrorS(err, "Error flushing ipvs rules")
|
||||
encounteredError = true
|
||||
}
|
||||
}
|
||||
@ -812,7 +812,7 @@ func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset
|
||||
nl := NewNetLinkHandle(false)
|
||||
err := nl.DeleteDummyDevice(DefaultDummyDevice)
|
||||
if err != nil {
|
||||
klog.ErrorS(err, "Error deleting dummy device created by IPVS proxier", "device", DefaultDummyDevice)
|
||||
klog.ErrorS(err, "Error deleting dummy device created by ipvs proxier", "device", DefaultDummyDevice)
|
||||
encounteredError = true
|
||||
}
|
||||
// Clear iptables created by ipvs Proxier.
|
||||
@ -1020,7 +1020,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
// merge stale services gathered from updateEndpointsMap
|
||||
for _, svcPortName := range endpointUpdateResult.StaleServiceNames {
|
||||
if svcInfo, ok := proxier.serviceMap[svcPortName]; ok && svcInfo != nil && conntrack.IsClearConntrackNeeded(svcInfo.Protocol()) {
|
||||
klog.V(2).InfoS("Stale service", "protocol", strings.ToLower(string(svcInfo.Protocol())), "svcPortName", svcPortName.String(), "clusterIP", svcInfo.ClusterIP().String())
|
||||
klog.V(2).InfoS("Stale service", "protocol", strings.ToLower(string(svcInfo.Protocol())), "servicePortName", svcPortName, "clusterIP", svcInfo.ClusterIP())
|
||||
staleServices.Insert(svcInfo.ClusterIP().String())
|
||||
for _, extIP := range svcInfo.ExternalIPStrings() {
|
||||
staleServices.Insert(extIP)
|
||||
@ -1031,7 +1031,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
}
|
||||
}
|
||||
|
||||
klog.V(3).InfoS("Syncing ipvs Proxier rules")
|
||||
klog.V(3).InfoS("Syncing ipvs proxier rules")
|
||||
|
||||
// Begin install iptables
|
||||
|
||||
@ -1074,7 +1074,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
|
||||
bindedAddresses, err := proxier.ipGetter.BindedIPs()
|
||||
if err != nil {
|
||||
klog.ErrorS(err, "error listing addresses binded to dummy interface")
|
||||
klog.ErrorS(err, "Error listing addresses binded to dummy interface")
|
||||
}
|
||||
|
||||
hasNodePort := false
|
||||
@ -1098,7 +1098,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
if hasNodePort {
|
||||
nodeAddrSet, err := utilproxy.GetNodeAddresses(proxier.nodePortAddresses, proxier.networkInterfacer)
|
||||
if err != nil {
|
||||
klog.ErrorS(err, "Failed to get node ip address matching nodeport cidr")
|
||||
klog.ErrorS(err, "Failed to get node IP address matching nodeport cidr")
|
||||
} else {
|
||||
nodeAddresses = nodeAddrSet.List()
|
||||
for _, address := range nodeAddresses {
|
||||
@ -1135,7 +1135,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
for svcName, svc := range proxier.serviceMap {
|
||||
svcInfo, ok := svc.(*serviceInfo)
|
||||
if !ok {
|
||||
klog.ErrorS(nil, "Failed to cast serviceInfo", "svcName", svcName.String())
|
||||
klog.ErrorS(nil, "Failed to cast serviceInfo", "serviceName", svcName)
|
||||
continue
|
||||
}
|
||||
isIPv6 := netutils.IsIPv6(svcInfo.ClusterIP())
|
||||
@ -1152,7 +1152,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
for _, e := range proxier.endpointsMap[svcName] {
|
||||
ep, ok := e.(*proxy.BaseEndpointInfo)
|
||||
if !ok {
|
||||
klog.ErrorS(nil, "Failed to cast BaseEndpointInfo", "endpoint", e.String())
|
||||
klog.ErrorS(nil, "Failed to cast BaseEndpointInfo", "endpoint", e)
|
||||
continue
|
||||
}
|
||||
if !ep.IsLocal {
|
||||
@ -1172,7 +1172,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
SetType: utilipset.HashIPPortIP,
|
||||
}
|
||||
if valid := proxier.ipsetList[kubeLoopBackIPSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoopBackIPSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoopBackIPSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoopBackIPSet].activeEntries.Insert(entry.String())
|
||||
@ -1189,7 +1189,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
// add service Cluster IP:Port to kubeServiceAccess ip set for the purpose of solving hairpin.
|
||||
// proxier.kubeServiceAccessSet.activeEntries.Insert(entry.String())
|
||||
if valid := proxier.ipsetList[kubeClusterIPSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeClusterIPSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeClusterIPSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeClusterIPSet].activeEntries.Insert(entry.String())
|
||||
@ -1216,10 +1216,10 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
internalNodeLocal = true
|
||||
}
|
||||
if err := proxier.syncEndpoint(svcName, internalNodeLocal, serv); err != nil {
|
||||
klog.ErrorS(err, "Failed to sync endpoint for service", "service", serv.String())
|
||||
klog.ErrorS(err, "Failed to sync endpoint for service", "serviceName", svcName, "virtualServer", serv)
|
||||
}
|
||||
} else {
|
||||
klog.ErrorS(err, "Failed to sync service", "service", serv.String())
|
||||
klog.ErrorS(err, "Failed to sync service", "serviceName", svcName, "virtualServer", serv)
|
||||
}
|
||||
|
||||
// Capture externalIPs.
|
||||
@ -1237,7 +1237,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
Protocol: netutils.Protocol(svcInfo.Protocol()),
|
||||
}
|
||||
if proxier.portsMap[lp] != nil {
|
||||
klog.V(4).InfoS("Port was open before and is still needed", "port", lp.String())
|
||||
klog.V(4).InfoS("Port was open before and is still needed", "port", lp)
|
||||
replacementPortsMap[lp] = proxier.portsMap[lp]
|
||||
} else {
|
||||
socket, err := proxier.portMapper.OpenLocalPort(&lp)
|
||||
@ -1251,10 +1251,10 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
UID: types.UID(proxier.hostname),
|
||||
Namespace: "",
|
||||
}, nil, v1.EventTypeWarning, err.Error(), "SyncProxyRules", msg)
|
||||
klog.ErrorS(err, "can't open port, skipping it", "port", lp.String())
|
||||
klog.ErrorS(err, "Can't open port, skipping it", "port", lp)
|
||||
continue
|
||||
}
|
||||
klog.V(2).InfoS("Opened local port", "port", lp.String())
|
||||
klog.V(2).InfoS("Opened local port", "port", lp)
|
||||
replacementPortsMap[lp] = socket
|
||||
}
|
||||
} // We're holding the port, so it's OK to install IPVS rules.
|
||||
@ -1269,14 +1269,14 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
|
||||
if svcInfo.NodeLocalExternal() {
|
||||
if valid := proxier.ipsetList[kubeExternalIPLocalSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeExternalIPLocalSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeExternalIPLocalSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeExternalIPLocalSet].activeEntries.Insert(entry.String())
|
||||
} else {
|
||||
// We have to SNAT packets to external IPs.
|
||||
if valid := proxier.ipsetList[kubeExternalIPSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeExternalIPSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeExternalIPSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeExternalIPSet].activeEntries.Insert(entry.String())
|
||||
@ -1298,10 +1298,10 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
activeBindAddrs[serv.Address.String()] = true
|
||||
|
||||
if err := proxier.syncEndpoint(svcName, svcInfo.NodeLocalExternal(), serv); err != nil {
|
||||
klog.ErrorS(err, "Failed to sync endpoint for service", "service", serv.String())
|
||||
klog.ErrorS(err, "Failed to sync endpoint for service", "serviceName", svcName, "virtualServer", serv)
|
||||
}
|
||||
} else {
|
||||
klog.ErrorS(err, "Failed to sync service", "service", serv.String())
|
||||
klog.ErrorS(err, "Failed to sync service", "service", svcName, "virtualServer", serv)
|
||||
}
|
||||
}
|
||||
|
||||
@ -1320,14 +1320,14 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
// If we are proxying globally, we need to masquerade in case we cross nodes.
|
||||
// If we are proxying only locally, we can retain the source IP.
|
||||
if valid := proxier.ipsetList[kubeLoadBalancerSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoadBalancerSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoadBalancerSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoadBalancerSet].activeEntries.Insert(entry.String())
|
||||
// insert loadbalancer entry to lbIngressLocalSet if service externaltrafficpolicy=local
|
||||
if svcInfo.NodeLocalExternal() {
|
||||
if valid := proxier.ipsetList[kubeLoadBalancerLocalSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoadBalancerLocalSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoadBalancerLocalSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoadBalancerLocalSet].activeEntries.Insert(entry.String())
|
||||
@ -1337,7 +1337,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
// This currently works for loadbalancers that preserves source ips.
|
||||
// For loadbalancers which direct traffic to service NodePort, the firewall rules will not apply.
|
||||
if valid := proxier.ipsetList[kubeLoadbalancerFWSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoadbalancerFWSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoadbalancerFWSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoadbalancerFWSet].activeEntries.Insert(entry.String())
|
||||
@ -1353,7 +1353,7 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
}
|
||||
// enumerate all white list source cidr
|
||||
if valid := proxier.ipsetList[kubeLoadBalancerSourceCIDRSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoadBalancerSourceCIDRSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoadBalancerSourceCIDRSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoadBalancerSourceCIDRSet].activeEntries.Insert(entry.String())
|
||||
@ -1377,13 +1377,12 @@ func (proxier *Proxier) syncProxyRules() {
|
||||
}
|
||||
// enumerate all white list source ip
|
||||
if valid := proxier.ipsetList[kubeLoadBalancerSourceIPSet].validateEntry(entry); !valid {
|
||||
klog.ErrorS(nil, "error adding entry to ipset", "entry", entry.String(), "ipset", proxier.ipsetList[kubeLoadBalancerSourceIPSet].Name)
|
||||
klog.ErrorS(nil, "Error adding entry to ipset", "entry", entry, "ipset", proxier.ipsetList[kubeLoadBalancerSourceIPSet].Name)
|
||||
continue
|
||||
}
|
||||
proxier.ipsetList[kubeLoadBalancerSourceIPSet].activeEntries.Insert(entry.String())
|
||||
}
|
||||
}
|
||||
|
||||
// ipvs call
|
||||
serv := &utilipvs.VirtualServer{
|
||||
Address: netutils.ParseIPSloppy(ingress),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user