Change:
kube-proxy contains a comment that "all flags below are deprecated", but many non-deprecated flags are in that comment block. Please minimally rearrange the flags, so that deprecated & non-deprecated flags are properly grouped.
/kind cleanup /sig network /priority backlog /good-first-issue
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I can work on this if no one picked it up already.
Go for it
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Discussion:
// AddFlags adds flags to fs and binds them to options. func (o *Options) AddFlags(fs *pflag.FlagSet) { o.addOSFlags(fs) fs.StringVar(&o.ConfigFile, "config", o.ConfigFile, "The path to the configuration file.") fs.StringVar(&o.WriteConfigTo, "write-config-to", o.WriteConfigTo, "If set, write the default configuration values to this file and exit.") <del> fs.BoolVar(&o.CleanupAndExit, "cleanup-iptables", o.CleanupAndExit, "If true cleanup iptables and ipvs rules and exit.") fs.MarkDeprecated("cleanup-iptables", "This flag is replaced by --cleanup.") </del> <ins> fs.StringVar(&o.config.ClientConnection.Kubeconfig, "kubeconfig", o.config.ClientConnection.Kubeconfig, "Path to kubeconfig file with authorization information (the master location is set by the master flag).") fs.StringVar(&o.config.ClusterCIDR, "cluster-cidr", o.config.ClusterCIDR, "The CIDR range of pods in the cluster. When configured, traffic sent to a Service cluster IP from outside this range will be masqueraded and traffic sent from pods to an external LoadBalancer IP will be directed to the respective cluster IP instead") fs.StringVar(&o.config.ClientConnection.ContentType, "kube-api-content-type", o.config.ClientConnection.ContentType, "Content type of requests sent to apiserver.") fs.StringVar(&o.master, "master", o.master, "The address of the Kubernetes API server (overrides any value in kubeconfig)") fs.StringVar(&o.hostnameOverride, "hostname-override", o.hostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.") fs.StringVar(&o.config.IPVS.Scheduler, "ipvs-scheduler", o.config.IPVS.Scheduler, "The ipvs scheduler type when proxy mode is ipvs") fs.StringSliceVar(&o.config.IPVS.ExcludeCIDRs, "ipvs-exclude-cidrs", o.config.IPVS.ExcludeCIDRs, "A comma-separated list of CIDR's which the ipvs proxier should not touch when cleaning up IPVS rules.") fs.StringSliceVar(&o.config.NodePortAddresses, "nodeport-addresses", o.config.NodePortAddresses, "A string slice of values which specify the addresses to use for NodePorts. Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32). The default empty string slice ([]) means to use all local addresses.") </ins> fs.BoolVar(&o.CleanupAndExit, "cleanup", o.CleanupAndExit, "If true cleanup iptables and ipvs rules and exit.") fs.BoolVar(&o.CleanupIPVS, "cleanup-ipvs", o.CleanupIPVS, "If true and --cleanup is specified, kube-proxy will also flush IPVS rules, in addition to normal cleanup.") <del> // All flags below here are deprecated and will eventually be removed. </del> fs.Var(utilflag.IPVar{Val: &o.config.BindAddress}, "bind-address", "The IP address for the proxy server to serve on (set to `0.0.0.0` for all IPv4 interfaces and `::` for all IPv6 interfaces)") <del> fs.StringVar(&o.master, "master", o.master, "The address of the Kubernetes API server (overrides any value in kubeconfig)") fs.Int32Var(&o.healthzPort, "healthz-port", o.healthzPort, "The port to bind the health check server. Use 0 to disable.") </del> fs.Var(utilflag.IPVar{Val: &o.config.HealthzBindAddress}, "healthz-bind-address", "The IP address for the health check server to serve on (set to `0.0.0.0` for all IPv4 interfaces and `::` for all IPv6 interfaces)") <del> fs.Int32Var(&o.metricsPort, "metrics-port", o.metricsPort, "The port to bind the metrics server. Use 0 to disable.") </del> fs.Var(utilflag.IPVar{Val: &o.config.MetricsBindAddress}, "metrics-bind-address", "The IP address for the metrics server to serve on (set to `0.0.0.0` for all IPv4 interfaces and `::` for all IPv6 interfaces)") <del> fs.Int32Var(o.config.OOMScoreAdj, "oom-score-adj", utilpointer.Int32PtrDerefOr(o.config.OOMScoreAdj, int32(qos.KubeProxyOOMScoreAdj)), "The oom-score-adj value for kube-proxy process. Values must be within the range [-1000, 1000]") fs.StringVar(&o.config.ResourceContainer, "resource-container", o.config.ResourceContainer, "Absolute name of the resource-only container to create and run the Kube-proxy in (Default: /kube-proxy).") fs.MarkDeprecated("resource-container", "This feature will be removed in a later release.") fs.StringVar(&o.config.ClientConnection.Kubeconfig, "kubeconfig", o.config.ClientConnection.Kubeconfig, "Path to kubeconfig file with authorization information (the master location is set by the master flag).") </del> fs.Var(utilflag.PortRangeVar{Val: &o.config.PortRange}, "proxy-port-range", "Range of host ports (beginPort-endPort, single port or beginPort+offset, inclusive) that may be consumed in order to proxy service traffic. If (unspecified, 0, or 0-0) then ports will be randomly chosen.") <del> fs.StringVar(&o.hostnameOverride, "hostname-override", o.hostnameOverride, "If non-empty, will use this string as identification instead of the actual hostname.") </del> fs.Var(&o.config.Mode, "proxy-mode", "Which proxy mode to use: 'userspace' (older) or 'iptables' (faster) or 'ipvs' (experimental). If blank, use the best-available proxy (currently iptables).  If the iptables proxy is selected, regardless of how, but the system's kernel or iptables versions are insufficient, this always falls back to the userspace proxy.") <ins> fs.Var(cliflag.NewMapStringBool(&o.config.FeatureGates), "feature-gates", "A set of key=value pairs that describe feature gates for alpha/experimental features. "+ "Options are:n"+strings.Join(utilfeature.DefaultFeatureGate.KnownFeatures(), "n")) fs.Int32Var(&o.healthzPort, "healthz-port", o.healthzPort, "The port to bind the health check server. Use 0 to disable.") fs.Int32Var(&o.metricsPort, "metrics-port", o.metricsPort, "The port to bind the metrics server. Use 0 to disable.") fs.Int32Var(o.config.OOMScoreAdj, "oom-score-adj", utilpointer.Int32PtrDerefOr(o.config.OOMScoreAdj, int32(qos.KubeProxyOOMScoreAdj)), "The oom-score-adj value for kube-proxy process. Values must be within the range [-1000, 1000]") </ins> fs.Int32Var(o.config.IPTables.MasqueradeBit, "iptables-masquerade-bit", utilpointer.Int32PtrDerefOr(o.config.IPTables.MasqueradeBit, 14), "If using the pure iptables proxy, the bit of the fwmark space to mark packets requiring SNAT with.  Must be within the range [0, 31].") <del> fs.DurationVar(&o.config.IPTables.SyncPeriod.Duration, "iptables-sync-period", o.config.IPTables.SyncPeriod.Duration, "The maximum interval of how often iptables rules are refreshed (e.g. '5s', '1m', '2h22m').  Must be greater than 0.") fs.DurationVar(&o.config.IPTables.MinSyncPeriod.Duration, "iptables-min-sync-period", o.config.IPTables.MinSyncPeriod.Duration, "The minimum interval of how often the iptables rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').") fs.DurationVar(&o.config.IPVS.SyncPeriod.Duration, "ipvs-sync-period", o.config.IPVS.SyncPeriod.Duration, "The maximum interval of how often ipvs rules are refreshed (e.g. '5s', '1m', '2h22m').  Must be greater than 0.") fs.DurationVar(&o.config.IPVS.MinSyncPeriod.Duration, "ipvs-min-sync-period", o.config.IPVS.MinSyncPeriod.Duration, "The minimum interval of how often the ipvs rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').") fs.StringSliceVar(&o.config.IPVS.ExcludeCIDRs, "ipvs-exclude-cidrs", o.config.IPVS.ExcludeCIDRs, "A comma-separated list of CIDR's which the ipvs proxier should not touch when cleaning up IPVS rules.") fs.BoolVar(&o.config.IPVS.StrictARP, "ipvs-strict-arp", o.config.IPVS.StrictARP, "Enable strict ARP by setting arp_ignore to 1 and arp_announce to 2") fs.DurationVar(&o.config.ConfigSyncPeriod.Duration, "config-sync-period", o.config.ConfigSyncPeriod.Duration, "How often configuration from the apiserver is refreshed.  Must be greater than 0.") fs.BoolVar(&o.config.IPTables.MasqueradeAll, "masquerade-all", o.config.IPTables.MasqueradeAll, "If using the pure iptables proxy, SNAT all traffic sent via Service cluster IPs (this not commonly needed)") fs.StringVar(&o.config.ClusterCIDR, "cluster-cidr", o.config.ClusterCIDR, "The CIDR range of pods in the cluster. When configured, traffic sent to a Service cluster IP from outside this range will be masqueraded and traffic sent from pods to an external LoadBalancer IP will be directed to the respective cluster IP instead") fs.StringVar(&o.config.ClientConnection.ContentType, "kube-api-content-type", o.config.ClientConnection.ContentType, "Content type of requests sent to apiserver.") fs.Float32Var(&o.config.ClientConnection.QPS, "kube-api-qps", o.config.ClientConnection.QPS, "QPS to use while talking with kubernetes apiserver") fs.Int32Var(&o.config.ClientConnection.Burst, "kube-api-burst", o.config.ClientConnection.Burst, "Burst to use while talking with kubernetes apiserver") fs.DurationVar(&o.config.UDPIdleTimeout.Duration, "udp-timeout", o.config.UDPIdleTimeout.Duration, "How long an idle UDP connection will be kept open (e.g. '250ms', '2s').  Must be greater than 0. Only applicable for proxy-mode=userspace") </del> if o.config.Conntrack.Max == nil { o.config.Conntrack.Max = utilpointer.Int32Ptr(0) } <del> fs.Int32Var(o.config.Conntrack.Max, "conntrack-max", *o.config.Conntrack.Max, "Maximum number of NAT connections to track (0 to leave as-is). This overrides conntrack-max-per-core and conntrack-min.") fs.MarkDeprecated("conntrack-max", "This feature will be removed in a later release.") </del> fs.Int32Var(o.config.Conntrack.MaxPerCore, "conntrack-max-per-core", *o.config.Conntrack.MaxPerCore, "Maximum number of NAT connections to track per CPU core (0 to leave the limit as-is and ignore conntrack-min).") fs.Int32Var(o.config.Conntrack.Min, "conntrack-min", *o.config.Conntrack.Min, "Minimum number of conntrack entries to allocate, regardless of conntrack-max-per-core (set conntrack-max-per-core=0 to leave the limit as-is).") <ins> fs.Int32Var(&o.config.ClientConnection.Burst, "kube-api-burst", o.config.ClientConnection.Burst, "Burst to use while talking with kubernetes apiserver") fs.DurationVar(&o.config.IPTables.SyncPeriod.Duration, "iptables-sync-period", o.config.IPTables.SyncPeriod.Duration, "The maximum interval of how often iptables rules are refreshed (e.g. '5s', '1m', '2h22m').  Must be greater than 0.") fs.DurationVar(&o.config.IPTables.MinSyncPeriod.Duration, "iptables-min-sync-period", o.config.IPTables.MinSyncPeriod.Duration, "The minimum interval of how often the iptables rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').") fs.DurationVar(&o.config.IPVS.SyncPeriod.Duration, "ipvs-sync-period", o.config.IPVS.SyncPeriod.Duration, "The maximum interval of how often ipvs rules are refreshed (e.g. '5s', '1m', '2h22m').  Must be greater than 0.") fs.DurationVar(&o.config.IPVS.MinSyncPeriod.Duration, "ipvs-min-sync-period", o.config.IPVS.MinSyncPeriod.Duration, "The minimum interval of how often the ipvs rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').") </ins> fs.DurationVar(&o.config.Conntrack.TCPEstablishedTimeout.Duration, "conntrack-tcp-timeout-established", o.config.Conntrack.TCPEstablishedTimeout.Duration, "Idle timeout for established TCP connections (0 to leave as-is)") fs.DurationVar( &o.config.Conntrack.TCPCloseWaitTimeout.Duration, "conntrack-tcp-timeout-close-wait", o.config.Conntrack.TCPCloseWaitTimeout.Duration, "NAT timeout for TCP connections in the CLOSE_WAIT state") <ins> fs.DurationVar(&o.config.ConfigSyncPeriod.Duration, "config-sync-period", o.config.ConfigSyncPeriod.Duration, "How often configuration from the apiserver is refreshed.  Must be greater than 0.") fs.DurationVar(&o.config.UDPIdleTimeout.Duration, "udp-timeout", o.config.UDPIdleTimeout.Duration, "How long an idle UDP connection will be kept open (e.g. '250ms', '2s').  Must be greater than 0. Only applicable for proxy-mode=userspace") fs.BoolVar(&o.config.IPVS.StrictARP, "ipvs-strict-arp", o.config.IPVS.StrictARP, "Enable strict ARP by setting arp_ignore to 1 and arp_announce to 2") fs.BoolVar(&o.config.IPTables.MasqueradeAll, "masquerade-all", o.config.IPTables.MasqueradeAll, "If using the pure iptables proxy, SNAT all traffic sent via Service cluster IPs (this not commonly needed)") </ins> fs.BoolVar(&o.config.EnableProfiling, "profiling", o.config.EnableProfiling, "If true enables profiling via web interface on /debug/pprof handler.") <del> fs.StringVar(&o.config.IPVS.Scheduler, "ipvs-scheduler", o.config.IPVS.Scheduler, "The ipvs scheduler type when proxy mode is ipvs") fs.StringSliceVar(&o.config.NodePortAddresses, "nodeport-addresses", o.config.NodePortAddresses, "A string slice of values which specify the addresses to use for NodePorts. Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32). The default empty string slice ([]) means to use all local addresses.") fs.Var(cliflag.NewMapStringBool(&o.config.FeatureGates), "feature-gates", "A set of key=value pairs that describe feature gates for alpha/experimental features. "+ "Options are:n"+strings.Join(utilfeature.DefaultFeatureGate.KnownFeatures(), "n")) </del> <ins> fs.Float32Var(&o.config.ClientConnection.QPS, "kube-api-qps", o.config.ClientConnection.QPS, "QPS to use while talking with kubernetes apiserver") // All flags below here are deprecated and will eventually be removed. fs.Int32Var(o.config.Conntrack.Max, "conntrack-max", *o.config.Conntrack.Max, "Maximum number of NAT connections to track (0 to leave as-is). This overrides conntrack-max-per-core and conntrack-min.") fs.MarkDeprecated("conntrack-max", "This feature will be removed in a later release.") fs.BoolVar(&o.CleanupAndExit, "cleanup-iptables", o.CleanupAndExit, "If true cleanup iptables and ipvs rules and exit.") fs.MarkDeprecated("cleanup-iptables", "This flag is replaced by --cleanup.") fs.StringVar(&o.config.ResourceContainer, "resource-container", o.config.ResourceContainer, "Absolute name of the resource-only container to create and run the Kube-proxy in (Default: /kube-proxy).") fs.MarkDeprecated("resource-container", "This feature will be removed in a later release.") </ins> } // NewOptions returns initialized Options