Merge pull request #114470 from danwinship/kep-3178-fixups

KEP-3178-related iptables rule fixups
This commit is contained in:
Kubernetes Prow Robot
2023-02-21 14:24:08 -08:00
committed by GitHub
3 changed files with 289 additions and 158 deletions

View File

@@ -760,7 +760,7 @@ func checkIPTablesRuleJumps(ruleData string) error {
// Find cases where we have ":BAR" but no "-A FOO ... -j BAR", meaning
// that we are creating an empty chain but not using it for anything.
extraChains := createdChains.Difference(jumpedChains)
extraChains.Delete(string(kubeServicesChain), string(kubeExternalServicesChain), string(kubeNodePortsChain), string(kubePostroutingChain), string(kubeForwardChain), string(kubeMarkMasqChain), string(kubeProxyFirewallChain))
extraChains.Delete(string(kubeServicesChain), string(kubeExternalServicesChain), string(kubeNodePortsChain), string(kubePostroutingChain), string(kubeForwardChain), string(kubeMarkMasqChain), string(kubeProxyFirewallChain), string(kubeletFirewallChain))
if len(extraChains) > 0 {
return fmt.Errorf("some chains in %s are created but not used: %v", tableName, extraChains.List())
}
@@ -1017,6 +1017,7 @@ func TestSortIPTablesRules(t *testing.T) {
*filter
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FIREWALL - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-NODEPORTS - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
@@ -1024,6 +1025,7 @@ func TestSortIPTablesRules(t *testing.T) {
-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
-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
-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
-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
@@ -1063,6 +1065,7 @@ func TestSortIPTablesRules(t *testing.T) {
-A KUBE-SEP-RS4RBKLTHTF2IUXJ -m comment --comment ns2/svc2:p80 -s 10.180.0.2 -j KUBE-MARK-MASQ
-A KUBE-SEP-RS4RBKLTHTF2IUXJ -m comment --comment ns2/svc2:p80 -m tcp -p tcp -j DNAT --to-destination 10.180.0.2:80
-A KUBE-FW-GNZBNJ2PO5MGZ6GT -m comment --comment "ns2/svc2:p80 loadbalancer IP" -s 203.0.113.0/25 -j KUBE-EXT-GNZBNJ2PO5MGZ6GT
-A KUBE-FW-GNZBNJ2PO5MGZ6GT -m comment --comment "other traffic to s2/svc2:p80 will be dropped by KUBE-PROXY-FIREWALL"
-A KUBE-NODEPORTS -m comment --comment ns2/svc2:p80 -m tcp -p tcp --dport 3001 -j KUBE-EXT-GNZBNJ2PO5MGZ6GT
-A KUBE-EXT-GNZBNJ2PO5MGZ6GT -m comment --comment "Redirect pods trying to reach external loadbalancer VIP to clusterIP" -s 10.0.0.0/8 -j KUBE-SVC-GNZBNJ2PO5MGZ6GT
-A KUBE-EXT-GNZBNJ2PO5MGZ6GT -m comment --comment "masquerade LOCAL traffic for ns2/svc2:p80 LB IP" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
@@ -1094,12 +1097,14 @@ func TestSortIPTablesRules(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 "ns2/svc2:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
-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
-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
-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
-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
@@ -1137,6 +1142,7 @@ func TestSortIPTablesRules(t *testing.T) {
-A KUBE-EXT-GNZBNJ2PO5MGZ6GT -m comment --comment "route LOCAL traffic for ns2/svc2:p80 LB IP to service chain" -m addrtype --src-type LOCAL -j KUBE-SVC-GNZBNJ2PO5MGZ6GT
-A KUBE-EXT-GNZBNJ2PO5MGZ6GT -j KUBE-SVL-GNZBNJ2PO5MGZ6GT
-A KUBE-FW-GNZBNJ2PO5MGZ6GT -m comment --comment "ns2/svc2:p80 loadbalancer IP" -s 203.0.113.0/25 -j KUBE-EXT-GNZBNJ2PO5MGZ6GT
-A KUBE-FW-GNZBNJ2PO5MGZ6GT -m comment --comment "other traffic to s2/svc2:p80 will be dropped by KUBE-PROXY-FIREWALL"
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
@@ -1512,9 +1518,7 @@ func (tracer *iptablesTracer) runChain(table utiliptables.Table, chain utiliptab
for _, rule := range c.Rules {
if rule.Jump == nil {
// You _can_ have rules that don't end in `-j`, but we don't currently
// do that.
tracer.t.Errorf("Could not find jump target in rule %q", rule.Raw)
continue
}
if !tracer.ruleMatches(rule, sourceIP, destIP, destPort) {
@@ -1631,6 +1635,7 @@ func TestTracePackets(t *testing.T) {
:FORWARD - [0:0]
:OUTPUT - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FIREWALL - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
@@ -1646,6 +1651,7 @@ func TestTracePackets(t *testing.T) {
-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
-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
-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
-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
@@ -1706,6 +1712,7 @@ func TestTracePackets(t *testing.T) {
-A KUBE-EXT-X27LE4BHSL4DOUIK -m comment --comment "masquerade traffic for ns3/svc3:p80 external destinations" -j KUBE-MARK-MASQ
-A KUBE-EXT-X27LE4BHSL4DOUIK -j KUBE-SVC-X27LE4BHSL4DOUIK
-A KUBE-FW-NUKIZ6OKUXPJNT4C -m comment --comment "ns5/svc5:p80 loadbalancer IP" -s 203.0.113.0/25 -j KUBE-EXT-NUKIZ6OKUXPJNT4C
-A KUBE-FW-NUKIZ6OKUXPJNT4C -m comment --comment "other traffic to ns5/svc5:p80 will be dropped by KUBE-PROXY-FIREWALL"
-A KUBE-SEP-C6EBXVWJJZMIWKLZ -m comment --comment ns4/svc4:p80 -s 10.180.0.5 -j KUBE-MARK-MASQ
-A KUBE-SEP-C6EBXVWJJZMIWKLZ -m comment --comment ns4/svc4:p80 -m tcp -p tcp -j DNAT --to-destination 10.180.0.5:80
-A KUBE-SEP-I77PXRDZVX7PMWMN -m comment --comment ns5/svc5:p80 -s 10.180.0.3 -j KUBE-MARK-MASQ
@@ -1957,6 +1964,7 @@ func TestOverallIPTablesRulesWithMultipleServices(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 "ns2/svc2:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
@@ -1964,6 +1972,7 @@ func TestOverallIPTablesRulesWithMultipleServices(t *testing.T) {
-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
-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
-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
-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
@@ -2013,6 +2022,7 @@ func TestOverallIPTablesRulesWithMultipleServices(t *testing.T) {
-A KUBE-EXT-X27LE4BHSL4DOUIK -m comment --comment "masquerade traffic for ns3/svc3:p80 external destinations" -j KUBE-MARK-MASQ
-A KUBE-EXT-X27LE4BHSL4DOUIK -j KUBE-SVC-X27LE4BHSL4DOUIK
-A KUBE-FW-NUKIZ6OKUXPJNT4C -m comment --comment "ns5/svc5:p80 loadbalancer IP" -s 203.0.113.0/25 -j KUBE-EXT-NUKIZ6OKUXPJNT4C
-A KUBE-FW-NUKIZ6OKUXPJNT4C -m comment --comment "other traffic to ns5/svc5:p80 will be dropped by KUBE-PROXY-FIREWALL"
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
@@ -2085,9 +2095,11 @@ func TestClusterIPReject(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-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
@@ -2163,8 +2175,10 @@ 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
@@ -2270,8 +2284,10 @@ 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
@@ -2298,6 +2314,7 @@ func TestLoadBalancer(t *testing.T) {
-A KUBE-FW-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 loadbalancer IP" -s 203.0.113.0/25 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-FW-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 loadbalancer IP" -s 1.2.3.4 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-FW-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 loadbalancer IP" -s 5.6.7.8 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-FW-XPGD46QRK7WJZT7O -m comment --comment "other traffic to ns1/svc1:p80 will be dropped by KUBE-PROXY-FIREWALL"
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
@@ -2468,8 +2485,10 @@ 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
@@ -2570,11 +2589,13 @@ 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
@@ -2630,8 +2651,10 @@ 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
@@ -2690,10 +2713,12 @@ 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
@@ -2782,8 +2807,10 @@ 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
@@ -2894,8 +2921,10 @@ 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
@@ -2980,10 +3009,12 @@ 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
@@ -3070,12 +3101,14 @@ 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
@@ -3183,9 +3216,11 @@ 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
@@ -3262,45 +3297,47 @@ func TestEnableLocalhostNodePortsIPv4(t *testing.T) {
fp.localhostNodePorts = true
expected := dedent.Dedent(`
*filter
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
-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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "kubernetes service nodeports; NOTE: this must be the last rule in this chain" -m addrtype --dst-type LOCAL -j KUBE-NODEPORTS
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
*filter
: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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "kubernetes service nodeports; NOTE: this must be the last rule in this chain" -m addrtype --dst-type LOCAL -j KUBE-NODEPORTS
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
svcIP := "10.69.0.10"
svcPort := 80
svcNodePort := 30001
@@ -3356,45 +3393,45 @@ func TestDisableLocalhostNodePortsIPv4(t *testing.T) {
fp.localhostNodePorts = false
expected := dedent.Dedent(`
*filter
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
-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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "kubernetes service nodeports; NOTE: this must be the last rule in this chain" -m addrtype --dst-type LOCAL ! -d 127.0.0.0/8 -j KUBE-NODEPORTS
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
*filter
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
-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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "kubernetes service nodeports; NOTE: this must be the last rule in this chain" -m addrtype --dst-type LOCAL ! -d 127.0.0.0/8 -j KUBE-NODEPORTS
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
svcIP := "10.69.0.10"
svcPort := 80
svcNodePort := 30001
@@ -3452,44 +3489,44 @@ func TestDisableLocalhostNodePortsIPv4WithNodeAddress(t *testing.T) {
fp.nodePortAddresses = []string{"127.0.0.0/8"}
expected := dedent.Dedent(`
*filter
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
-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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
*filter
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXTERNAL-SERVICES - [0:0]
:KUBE-FORWARD - [0:0]
:KUBE-PROXY-FIREWALL - [0:0]
-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
COMMIT
*nat
:KUBE-NODEPORTS - [0:0]
:KUBE-SERVICES - [0:0]
:KUBE-EXT-XPGD46QRK7WJZT7O - [0:0]
:KUBE-MARK-MASQ - [0:0]
:KUBE-POSTROUTING - [0:0]
:KUBE-SEP-6KG6DFHVBKBK53RU - [0:0]
:KUBE-SEP-KDGX2M2ONE25PSWH - [0:0]
:KUBE-SVC-XPGD46QRK7WJZT7O - [0:0]
:KUBE-SVL-XPGD46QRK7WJZT7O - [0:0]
-A KUBE-NODEPORTS -m comment --comment ns1/svc1:p80 -m tcp -p tcp --dport 30001 -j KUBE-EXT-XPGD46QRK7WJZT7O
-A KUBE-SERVICES -m comment --comment "ns1/svc1:p80 cluster IP" -m tcp -p tcp -d 10.69.0.10 --dport 80 -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "masquerade LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-MARK-MASQ
-A KUBE-EXT-XPGD46QRK7WJZT7O -m comment --comment "route LOCAL traffic for ns1/svc1:p80 external destinations" -m addrtype --src-type LOCAL -j KUBE-SVC-XPGD46QRK7WJZT7O
-A KUBE-EXT-XPGD46QRK7WJZT7O -j KUBE-SVL-XPGD46QRK7WJZT7O
-A KUBE-MARK-MASQ -j MARK --or-mark 0x4000
-A KUBE-POSTROUTING -m mark ! --mark 0x4000/0x4000 -j RETURN
-A KUBE-POSTROUTING -j MARK --xor-mark 0x4000
-A KUBE-POSTROUTING -m comment --comment "kubernetes service traffic requiring SNAT" -j MASQUERADE
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -s 10.244.0.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-6KG6DFHVBKBK53RU -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.0.1:80
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -s 10.244.2.1 -j KUBE-MARK-MASQ
-A KUBE-SEP-KDGX2M2ONE25PSWH -m comment --comment ns1/svc1:p80 -m tcp -p tcp -j DNAT --to-destination 10.244.2.1:80
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.0.1:80" -m statistic --mode random --probability 0.5000000000 -j KUBE-SEP-6KG6DFHVBKBK53RU
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> 10.244.2.1:80" -j KUBE-SEP-KDGX2M2ONE25PSWH
COMMIT
`)
svcIP := "10.69.0.10"
svcPort := 80
svcNodePort := 30001
@@ -3583,7 +3620,7 @@ func TestEnableLocalhostNodePortsIPv6(t *testing.T) {
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> [ff06::c2]:80" -j KUBE-SEP-XJJ5QXWGJG344QDZ
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> [ff06::c2]:80" -j KUBE-SEP-XJJ5QXWGJG344QDZ
COMMIT
`)
`)
svcIP := "fd00:ab34::20"
svcPort := 80
svcNodePort := 30001
@@ -3677,7 +3714,7 @@ func TestDisableLocalhostNodePortsIPv6(t *testing.T) {
-A KUBE-SVC-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> [ff06::c2]:80" -j KUBE-SEP-XJJ5QXWGJG344QDZ
-A KUBE-SVL-XPGD46QRK7WJZT7O -m comment --comment "ns1/svc1:p80 -> [ff06::c2]:80" -j KUBE-SEP-XJJ5QXWGJG344QDZ
COMMIT
`)
`)
svcIP := "fd00:ab34::20"
svcPort := 80
svcNodePort := 30001
@@ -3731,6 +3768,7 @@ 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
@@ -3779,6 +3817,7 @@ 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
@@ -5134,8 +5173,10 @@ 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
@@ -5584,8 +5625,10 @@ 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
@@ -5667,8 +5710,10 @@ 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
@@ -5719,9 +5764,11 @@ 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
@@ -5939,9 +5986,11 @@ 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
@@ -6078,9 +6127,11 @@ 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
@@ -6209,9 +6260,11 @@ 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
@@ -6341,10 +6394,12 @@ 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
@@ -6427,10 +6482,12 @@ 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
@@ -6522,11 +6579,13 @@ 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
@@ -6723,8 +6782,10 @@ 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
@@ -6853,8 +6914,10 @@ 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
@@ -6976,8 +7039,10 @@ 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
@@ -7105,10 +7170,12 @@ 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
@@ -7175,8 +7242,10 @@ 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
@@ -7269,10 +7338,12 @@ 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
@@ -8191,8 +8262,10 @@ 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
@@ -8260,8 +8333,10 @@ 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
@@ -8298,8 +8373,10 @@ 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
@@ -8345,9 +8422,11 @@ 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
@@ -8387,8 +8466,10 @@ 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
@@ -8428,8 +8509,10 @@ 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
@@ -8470,8 +8553,10 @@ 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
@@ -8511,8 +8596,10 @@ 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
@@ -8588,8 +8675,10 @@ 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