mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-22 19:31:44 +00:00
Duplicate the "anti-martian-packet" rule in kube-proxy
This rule was mistakenly added to kubelet even though it only applies to kube-proxy's traffic. We do not want to remove it from kubelet yet because other components may be depending on it for security, but we should make kube-proxy output its own rule rather than depending on kubelet.
This commit is contained in:
Dan Winship
parent
305641bd4c
commit
0ea0295965
@ -56,63 +56,63 @@ func TestNumberIptablesRules(t *testing.T) {
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name: "0 Services 0 EndpointsPerService - ClusterIP",
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services: 0,
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epPerService: 0,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 5,
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},
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{
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name: "1 Services 0 EndpointPerService - ClusterIP",
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services: 1,
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epPerService: 0,
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expectedFilterRules: 4,
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expectedFilterRules: 5,
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expectedNatRules: 5,
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},
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{
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name: "1 Services 1 EndpointPerService - ClusterIP",
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services: 1,
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epPerService: 1,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 10,
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},
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{
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name: "1 Services 2 EndpointPerService - ClusterIP",
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services: 1,
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epPerService: 2,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 13,
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},
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{
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name: "1 Services 10 EndpointPerService - ClusterIP",
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services: 1,
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epPerService: 10,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 37,
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},
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{
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name: "10 Services 0 EndpointsPerService - ClusterIP",
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services: 10,
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epPerService: 0,
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expectedFilterRules: 13,
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expectedFilterRules: 14,
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expectedNatRules: 5,
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},
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{
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name: "10 Services 1 EndpointPerService - ClusterIP",
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services: 10,
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epPerService: 1,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 55,
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},
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{
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name: "10 Services 2 EndpointPerService - ClusterIP",
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services: 10,
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epPerService: 2,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 85,
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},
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{
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name: "10 Services 10 EndpointPerService - ClusterIP",
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services: 10,
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epPerService: 10,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 325,
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},
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@ -128,7 +128,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 0,
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epPerService: 0,
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expectedFilterRules: 3,
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expectedFilterRules: 4,
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expectedNatRules: 5,
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},
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{
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@ -143,7 +143,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 1,
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epPerService: 0,
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expectedFilterRules: 7,
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expectedFilterRules: 8,
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expectedNatRules: 5,
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},
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{
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@ -158,7 +158,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 1,
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epPerService: 1,
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expectedFilterRules: 4,
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expectedFilterRules: 5,
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expectedNatRules: 17,
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},
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{
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@ -173,7 +173,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 1,
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epPerService: 2,
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expectedFilterRules: 4,
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expectedFilterRules: 5,
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expectedNatRules: 20,
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},
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{
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@ -188,7 +188,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 1,
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epPerService: 10,
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expectedFilterRules: 4,
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expectedFilterRules: 5,
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expectedNatRules: 44,
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},
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{
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@ -203,7 +203,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 10,
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epPerService: 0,
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expectedFilterRules: 43,
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expectedFilterRules: 44,
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expectedNatRules: 5,
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},
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{
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@ -218,7 +218,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 10,
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epPerService: 1,
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expectedFilterRules: 13,
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expectedFilterRules: 14,
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expectedNatRules: 125,
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},
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{
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@ -233,7 +233,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 10,
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epPerService: 2,
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expectedFilterRules: 13,
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expectedFilterRules: 14,
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expectedNatRules: 155,
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},
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{
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@ -248,7 +248,7 @@ func TestNumberIptablesRules(t *testing.T) {
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},
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services: 10,
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epPerService: 10,
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expectedFilterRules: 13,
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expectedFilterRules: 14,
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expectedNatRules: 395,
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},
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}
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@ -81,6 +81,11 @@ const (
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// kube proxy canary chain is used for monitoring rule reload
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kubeProxyCanaryChain utiliptables.Chain = "KUBE-PROXY-CANARY"
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// kubeletFirewallChain is a duplicate of kubelet's firewall containing
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// the anti-martian-packet rule. It should not be used for any other
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// rules.
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kubeletFirewallChain utiliptables.Chain = "KUBE-FIREWALL"
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// largeClusterEndpointsThreshold is the number of endpoints at which
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// we switch into "large cluster mode" and optimize for iptables
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// performance over iptables debuggability
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@ -203,8 +208,8 @@ type Proxier struct {
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// optimize for performance over debuggability.
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largeClusterMode bool
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// localhostNodePorts indicates whether to generate iptables rules that
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// disable NodePort services to be accessed via localhost.
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// localhostNodePorts indicates whether we allow NodePort services to be accessed
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// via localhost.
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localhostNodePorts bool
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// Values are as a parameter to select the interfaces where nodePort works.
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nodePortAddresses []string
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@ -236,7 +241,10 @@ func NewProxier(ipt utiliptables.Interface,
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healthzServer healthcheck.ProxierHealthUpdater,
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nodePortAddresses []string,
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) (*Proxier, error) {
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if localhostNodePorts && utilproxy.ContainsIPv4Loopback(nodePortAddresses) {
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if !utilproxy.ContainsIPv4Loopback(nodePortAddresses) {
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localhostNodePorts = false
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}
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if localhostNodePorts {
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// Set the route_localnet sysctl we need for exposing NodePorts on loopback addresses
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// Refer to https://issues.k8s.io/90259
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klog.InfoS("Setting route_localnet=1 to allow node-ports on localhost; to change this either disable iptables.localhostNodePorts (--iptables-localhost-nodeports) or set nodePortAddresses (--nodeport-addresses) to filter loopback addresses")
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@ -378,6 +386,9 @@ var iptablesJumpChains = []iptablesJumpChain{
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// Duplicates of chains created in pkg/kubelet/kubelet_network_linux.go; we create these
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// on startup but do not delete them in CleanupLeftovers.
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var iptablesKubeletJumpChains = []iptablesJumpChain{
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{utiliptables.TableFilter, kubeletFirewallChain, utiliptables.ChainInput, "", nil},
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{utiliptables.TableFilter, kubeletFirewallChain, utiliptables.ChainOutput, "", nil},
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// Move this to iptablesJumpChains once IPTablesOwnershipCleanup is GA and kubelet
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// no longer creates this chain,
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{utiliptables.TableNAT, kubePostroutingChain, utiliptables.ChainPostrouting, "kubernetes postrouting rules", nil},
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@ -887,10 +898,11 @@ func (proxier *Proxier) syncProxyRules() {
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klog.ErrorS(err, "Failed to ensure chain exists", "table", jump.table, "chain", jump.dstChain)
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return
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}
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args := append(jump.extraArgs,
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"-m", "comment", "--comment", jump.comment,
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"-j", string(jump.dstChain),
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)
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args := jump.extraArgs
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if jump.comment != "" {
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args = append(args, "-m", "comment", "--comment", jump.comment)
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}
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args = append(args, "-j", string(jump.dstChain))
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if _, err := proxier.iptables.EnsureRule(utiliptables.Prepend, jump.table, jump.srcChain, args...); err != nil {
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klog.ErrorS(err, "Failed to ensure chain jumps", "table", jump.table, "srcChain", jump.srcChain, "dstChain", jump.dstChain)
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return
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@ -949,6 +961,26 @@ func (proxier *Proxier) syncProxyRules() {
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"-j", "MARK", "--or-mark", proxier.masqueradeMark,
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)
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isIPv6 := proxier.iptables.IsIPv6()
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if !isIPv6 && proxier.localhostNodePorts {
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// Kube-proxy's use of `route_localnet` to enable NodePorts on localhost
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// creates a security hole (https://issue.k8s.io/90259) which this
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// iptables rule mitigates.
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// NB: THIS MUST MATCH the corresponding code in the kubelet. (Actually,
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// kubelet uses "--dst"/"--src" rather than "-d"/"-s" but that's just a
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// command-line thing and results in the same rule being created.)
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proxier.filterChains.Write(utiliptables.MakeChainLine(kubeletFirewallChain))
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proxier.filterRules.Write(
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"-A", string(kubeletFirewallChain),
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"-m", "comment", "--comment", `"block incoming localnet connections"`,
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"-d", "127.0.0.0/8",
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"!", "-s", "127.0.0.0/8",
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"-m", "conntrack",
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"!", "--ctstate", "RELATED,ESTABLISHED,DNAT",
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"-j", "DROP",
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)
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}
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// Accumulate NAT chains to keep.
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activeNATChains := map[utiliptables.Chain]bool{} // use a map as a set
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@ -958,8 +990,8 @@ func (proxier *Proxier) syncProxyRules() {
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// is just for efficiency, not correctness.
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args := make([]string, 64)
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// Compute total number of endpoint chains across all services to get
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// a sense of how big the cluster is.
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// Compute total number of endpoint chains across all services
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// to get a sense of how big the cluster is.
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totalEndpoints := 0
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for svcName := range proxier.svcPortMap {
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totalEndpoints += len(proxier.endpointsMap[svcName])
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@ -972,7 +1004,6 @@ func (proxier *Proxier) syncProxyRules() {
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}
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// nodeAddresses may contain dual-stack zero-CIDRs if proxier.nodePortAddresses is empty.
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// Ensure nodeAddresses only contains the addresses for this proxier's IP family.
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isIPv6 := proxier.iptables.IsIPv6()
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for addr := range nodeAddresses {
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if utilproxy.IsZeroCIDR(addr) && isIPv6 == netutils.IsIPv6CIDRString(addr) {
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// if any of the addresses is zero cidr of this IP family, non-zero IPs can be excluded.
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@ -759,7 +759,7 @@ func checkIPTablesRuleJumps(ruleData string) error {
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// Find cases where we have ":BAR" but no "-A FOO ... -j BAR", meaning
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// that we are creating an empty chain but not using it for anything.
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extraChains := createdChains.Difference(jumpedChains)
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extraChains.Delete(string(kubeServicesChain), string(kubeExternalServicesChain), string(kubeNodePortsChain), string(kubePostroutingChain), string(kubeForwardChain), string(kubeMarkMasqChain), string(kubeProxyFirewallChain))
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extraChains.Delete(string(kubeServicesChain), string(kubeExternalServicesChain), string(kubeNodePortsChain), string(kubePostroutingChain), string(kubeForwardChain), string(kubeMarkMasqChain), string(kubeProxyFirewallChain), string(kubeletFirewallChain))
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if len(extraChains) > 0 {
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return fmt.Errorf("some chains in %s are created but not used: %v", tableName, extraChains.List())
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}
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@ -1016,6 +1016,7 @@ func TestSortIPTablesRules(t *testing.T) {
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*filter
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:KUBE-SERVICES - [0:0]
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:KUBE-EXTERNAL-SERVICES - [0:0]
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:KUBE-FIREWALL - [0:0]
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:KUBE-FORWARD - [0:0]
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:KUBE-NODEPORTS - [0:0]
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:KUBE-PROXY-FIREWALL - [0:0]
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@ -1023,6 +1024,7 @@ func TestSortIPTablesRules(t *testing.T) {
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 192.168.99.22 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j DROP
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-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
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-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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@ -1094,12 +1096,14 @@ func TestSortIPTablesRules(t *testing.T) {
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:KUBE-NODEPORTS - [0:0]
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:KUBE-SERVICES - [0:0]
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:KUBE-EXTERNAL-SERVICES - [0:0]
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:KUBE-FIREWALL - [0:0]
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:KUBE-FORWARD - [0:0]
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:KUBE-PROXY-FIREWALL - [0:0]
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-A KUBE-NODEPORTS -m comment --comment "ns2/svc2:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 192.168.99.22 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j DROP
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-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
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-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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@ -1630,6 +1634,7 @@ func TestTracePackets(t *testing.T) {
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:FORWARD - [0:0]
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:OUTPUT - [0:0]
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:KUBE-EXTERNAL-SERVICES - [0:0]
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:KUBE-FIREWALL - [0:0]
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:KUBE-FORWARD - [0:0]
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:KUBE-NODEPORTS - [0:0]
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:KUBE-SERVICES - [0:0]
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@ -1645,6 +1650,7 @@ func TestTracePackets(t *testing.T) {
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 192.168.99.22 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j DROP
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-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
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-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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@ -1957,6 +1963,7 @@ func TestOverallIPTablesRulesWithMultipleServices(t *testing.T) {
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:KUBE-NODEPORTS - [0:0]
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:KUBE-SERVICES - [0:0]
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:KUBE-EXTERNAL-SERVICES - [0:0]
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:KUBE-FIREWALL - [0:0]
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:KUBE-FORWARD - [0:0]
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:KUBE-PROXY-FIREWALL - [0:0]
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-A KUBE-NODEPORTS -m comment --comment "ns2/svc2:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
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@ -1964,6 +1971,7 @@ func TestOverallIPTablesRulesWithMultipleServices(t *testing.T) {
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 192.168.99.22 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
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-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns2/svc2:p80 has no local endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j DROP
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-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
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-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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@ -2086,9 +2094,11 @@ func TestClusterIPReject(t *testing.T) {
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:KUBE-NODEPORTS - [0:0]
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:KUBE-SERVICES - [0:0]
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:KUBE-EXTERNAL-SERVICES - [0:0]
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:KUBE-FIREWALL - [0:0]
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:KUBE-FORWARD - [0:0]
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:KUBE-PROXY-FIREWALL - [0:0]
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-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.41 --dport 80 -j REJECT
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-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
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-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
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-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2164,8 +2174,10 @@ func TestClusterIPEndpointsMore(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2271,8 +2283,10 @@ func TestLoadBalancer(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2470,8 +2484,10 @@ func TestNodePort(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2572,11 +2588,13 @@ func TestHealthCheckNodePort(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.42 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2632,8 +2650,10 @@ func TestMasqueradeRule(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2692,10 +2712,12 @@ func TestExternalIPsReject(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.41 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 192.168.99.11 --dport 80 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2784,8 +2806,10 @@ func TestOnlyLocalExternalIPs(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2896,8 +2920,10 @@ func TestNonLocalExternalIPs(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -2982,10 +3008,12 @@ func TestNodePortReject(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.41 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -3072,12 +3100,14 @@ func TestLoadBalancerReject(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.41 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1:p80 has no endpoints" -m addrtype --dst-type LOCAL -m tcp -p tcp --dport 3001 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -3185,9 +3215,11 @@ func TestOnlyLocalLoadBalancing(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -3268,8 +3300,10 @@ func TestEnableLocalhostNodePortsIPv4(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -3733,6 +3767,7 @@ func TestOnlyLocalNodePortsNoClusterCIDR(t *testing.T) {
|
||||
fp := NewFakeProxier(ipt)
|
||||
fp.localDetector = proxyutiliptables.NewNoOpLocalDetector()
|
||||
fp.nodePortAddresses = []string{"192.168.0.0/24"}
|
||||
fp.localhostNodePorts = false
|
||||
|
||||
expected := dedent.Dedent(`
|
||||
*filter
|
||||
@ -3781,6 +3816,7 @@ func TestOnlyLocalNodePorts(t *testing.T) {
|
||||
ipt := iptablestest.NewFake()
|
||||
fp := NewFakeProxier(ipt)
|
||||
fp.nodePortAddresses = []string{"192.168.0.0/24"}
|
||||
fp.localhostNodePorts = false
|
||||
|
||||
expected := dedent.Dedent(`
|
||||
*filter
|
||||
@ -5136,8 +5172,10 @@ func TestEndpointSliceE2E(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -5586,8 +5624,10 @@ func TestInternalTrafficPolicyE2E(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -5669,8 +5709,10 @@ func TestInternalTrafficPolicyE2E(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -5721,9 +5763,11 @@ func TestInternalTrafficPolicyE2E(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1 has no local endpoints" -m tcp -p tcp -d 172.30.1.1 --dport 80 -j DROP
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -5941,9 +5985,11 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6080,9 +6126,11 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6211,9 +6259,11 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6343,10 +6393,12 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6429,10 +6481,12 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1 has no local endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j DROP
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6524,11 +6578,13 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyLocal(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-NODEPORTS -m comment --comment "ns1/svc1 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 172.30.1.1 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6725,8 +6781,10 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6855,8 +6913,10 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -6978,8 +7038,10 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -7107,10 +7169,12 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 172.30.1.1 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -7177,8 +7241,10 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -7271,10 +7337,12 @@ func TestEndpointSliceWithTerminatingEndpointsTrafficPolicyCluster(t *testing.T)
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 172.30.1.1 --dport 80 -j REJECT
|
||||
-A KUBE-EXTERNAL-SERVICES -m comment --comment "ns1/svc1 has no endpoints" -m tcp -p tcp -d 1.2.3.4 --dport 80 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8193,8 +8261,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8262,8 +8332,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8300,8 +8372,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8347,9 +8421,11 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-SERVICES -m comment --comment "ns4/svc4:p80 has no endpoints" -m tcp -p tcp -d 172.30.0.44 --dport 80 -j REJECT
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8389,8 +8465,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8430,8 +8508,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8472,8 +8552,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8513,8 +8595,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
@ -8590,8 +8674,10 @@ func TestSyncProxyRulesRepeated(t *testing.T) {
|
||||
:KUBE-NODEPORTS - [0:0]
|
||||
:KUBE-SERVICES - [0:0]
|
||||
:KUBE-EXTERNAL-SERVICES - [0:0]
|
||||
:KUBE-FIREWALL - [0:0]
|
||||
:KUBE-FORWARD - [0:0]
|
||||
:KUBE-PROXY-FIREWALL - [0:0]
|
||||
-A KUBE-FIREWALL -m comment --comment "block incoming localnet connections" -d 127.0.0.0/8 ! -s 127.0.0.0/8 -m conntrack ! --ctstate RELATED,ESTABLISHED,DNAT -j DROP
|
||||
-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT
|
||||
-A KUBE-FORWARD -m comment --comment "kubernetes forwarding conntrack rule" -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
||||
|
||||
Loading…
Reference in New Issue
Block a user