mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-10-31 18:28:13 +00:00
126 lines
7.1 KiB
Go
126 lines
7.1 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package iptables
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import (
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"testing"
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utiliptables "k8s.io/kubernetes/pkg/util/iptables"
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)
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func checkAllLines(t *testing.T, table utiliptables.Table, save []byte, expectedLines map[utiliptables.Chain]string) {
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chainLines := getChainLines(table, save)
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for chain, line := range chainLines {
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if expected, exists := expectedLines[chain]; exists {
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if expected != line {
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t.Errorf("getChainLines expected chain line not present. For chain: %s Expected: %s Got: %s", chain, expected, line)
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}
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} else {
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t.Errorf("getChainLines expected chain not present: %s", chain)
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}
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}
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}
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func TestgetChainLines(t *testing.T) {
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iptables_save := `# Generated by iptables-save v1.4.7 on Wed Oct 29 14:56:01 2014
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*nat
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:PREROUTING ACCEPT [2136997:197881818]
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:POSTROUTING ACCEPT [4284525:258542680]
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:OUTPUT ACCEPT [5901660:357267963]
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-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
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COMMIT
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# Completed on Wed Oct 29 14:56:01 2014`
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expected := map[utiliptables.Chain]string{
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utiliptables.ChainPrerouting: ":PREROUTING ACCEPT [2136997:197881818]",
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utiliptables.ChainPostrouting: ":POSTROUTING ACCEPT [4284525:258542680]",
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utiliptables.ChainOutput: ":OUTPUT ACCEPT [5901660:357267963]",
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}
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checkAllLines(t, utiliptables.TableNAT, []byte(iptables_save), expected)
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}
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func TestgetChainLinesMultipleTables(t *testing.T) {
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iptables_save := `# Generated by iptables-save v1.4.21 on Fri Aug 7 14:47:37 2015
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*nat
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:PREROUTING ACCEPT [2:138]
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:INPUT ACCEPT [0:0]
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:OUTPUT ACCEPT [0:0]
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:POSTROUTING ACCEPT [0:0]
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:DOCKER - [0:0]
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:KUBE-NODEPORT-CONTAINER - [0:0]
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:KUBE-NODEPORT-HOST - [0:0]
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:KUBE-PORTALS-CONTAINER - [0:0]
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:KUBE-PORTALS-HOST - [0:0]
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:KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U - [0:0]
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:KUBE-SVC-PknUqKuv-LNZiCKRqGm - [0:0]
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:KUBE-SVC-RWEx6uDf8yWGww1OQ8E - [0:0]
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:KUBE-SVC-UvIpe7oTYVlacW1-G4C - [0:0]
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:KUBE-SVC-g_TrwxBdTXDbEtecmNo - [0:0]
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:KUBE-SVC-gvTMDzeC8lcXUan15iP - [0:0]
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-A PREROUTING -m comment --comment "handle ClusterIPs; NOTE: this must be before the NodePort rules" -j KUBE-PORTALS-CONTAINER
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-A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
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-A PREROUTING -m addrtype --dst-type LOCAL -m comment --comment "handle service NodePorts; NOTE: this must be the last rule in the chain" -j KUBE-NODEPORT-CONTAINER
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-A OUTPUT -m comment --comment "handle ClusterIPs; NOTE: this must be before the NodePort rules" -j KUBE-PORTALS-HOST
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-A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
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-A OUTPUT -m addrtype --dst-type LOCAL -m comment --comment "handle service NodePorts; NOTE: this must be the last rule in the chain" -j KUBE-NODEPORT-HOST
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-A POSTROUTING -s 10.246.1.0/24 ! -o cbr0 -j MASQUERADE
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-A POSTROUTING -s 10.0.2.15/32 -d 10.0.2.15/32 -m comment --comment "handle pod connecting to self" -j MASQUERADE
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-A KUBE-PORTALS-CONTAINER -d 10.247.0.1/32 -p tcp -m comment --comment "portal for default/kubernetes:" -m state --state NEW -m tcp --dport 443 -j KUBE-SVC-g_TrwxBdTXDbEtecmNo
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-A KUBE-PORTALS-CONTAINER -d 10.247.0.10/32 -p udp -m comment --comment "portal for kube-system/kube-dns:dns" -m state --state NEW -m udp --dport 53 -j KUBE-SVC-gvTMDzeC8lcXUan15iP
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-A KUBE-PORTALS-CONTAINER -d 10.247.0.10/32 -p tcp -m comment --comment "portal for kube-system/kube-dns:dns-tcp" -m state --state NEW -m tcp --dport 53 -j KUBE-SVC-PknUqKuv-LNZiCKRqGm
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-A KUBE-PORTALS-HOST -d 10.247.0.1/32 -p tcp -m comment --comment "portal for default/kubernetes:" -m state --state NEW -m tcp --dport 443 -j KUBE-SVC-g_TrwxBdTXDbEtecmNo
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-A KUBE-PORTALS-HOST -d 10.247.0.10/32 -p udp -m comment --comment "portal for kube-system/kube-dns:dns" -m state --state NEW -m udp --dport 53 -j KUBE-SVC-gvTMDzeC8lcXUan15iP
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-A KUBE-PORTALS-HOST -d 10.247.0.10/32 -p tcp -m comment --comment "portal for kube-system/kube-dns:dns-tcp" -m state --state NEW -m tcp --dport 53 -j KUBE-SVC-PknUqKuv-LNZiCKRqGm
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-A KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U -p udp -m comment --comment "kube-system/kube-dns:dns" -m recent --set --name KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.246.1.2:53
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-A KUBE-SVC-PknUqKuv-LNZiCKRqGm -m comment --comment "kube-system/kube-dns:dns-tcp" -j KUBE-SVC-RWEx6uDf8yWGww1OQ8E
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-A KUBE-SVC-RWEx6uDf8yWGww1OQ8E -p tcp -m comment --comment "kube-system/kube-dns:dns-tcp" -m recent --set --name KUBE-SVC-RWEx6uDf8yWGww1OQ8E --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.246.1.2:53
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-A KUBE-SVC-UvIpe7oTYVlacW1-G4C -p tcp -m comment --comment "default/kubernetes:" -m recent --set --name KUBE-SVC-UvIpe7oTYVlacW1-G4C --mask 255.255.255.255 --rsource -j DNAT --to-destination 10.245.1.2:443
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-A KUBE-SVC-g_TrwxBdTXDbEtecmNo -m comment --comment "default/kubernetes:" -j KUBE-SVC-UvIpe7oTYVlacW1-G4C
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-A KUBE-SVC-gvTMDzeC8lcXUan15iP -m comment --comment "kube-system/kube-dns:dns" -j KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U
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COMMIT
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# Completed on Fri Aug 7 14:47:37 2015
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# Generated by iptables-save v1.4.21 on Fri Aug 7 14:47:37 2015
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*filter
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:INPUT ACCEPT [17514:83115836]
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:FORWARD ACCEPT [0:0]
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:OUTPUT ACCEPT [8909:688225]
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:DOCKER - [0:0]
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-A FORWARD -o cbr0 -j DOCKER
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-A FORWARD -o cbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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-A FORWARD -i cbr0 ! -o cbr0 -j ACCEPT
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-A FORWARD -i cbr0 -o cbr0 -j ACCEPT
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COMMIT
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`
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expected := map[utiliptables.Chain]string{
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utiliptables.ChainPrerouting: ":PREROUTING ACCEPT [2:138]",
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utiliptables.Chain("INPUT"): ":INPUT ACCEPT [0:0]",
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utiliptables.Chain("OUTPUT"): ":OUTPUT ACCEPT [0:0]",
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utiliptables.ChainPostrouting: ":POSTROUTING ACCEPT [0:0]",
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utiliptables.Chain("DOCKER"): ":DOCKER - [0:0]",
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utiliptables.Chain("KUBE-NODEPORT-CONTAINER"): ":KUBE-NODEPORT-CONTAINER - [0:0]",
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utiliptables.Chain("KUBE-NODEPORT-HOST"): ":KUBE-NODEPORT-HOST - [0:0]",
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utiliptables.Chain("KUBE-PORTALS-CONTAINER"): ":KUBE-PORTALS-CONTAINER - [0:0]",
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utiliptables.Chain("KUBE-PORTALS-HOST"): ":KUBE-PORTALS-HOST - [0:0]",
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utiliptables.Chain("KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U"): ":KUBE-SVC-Dgkr8H9s4LQ2mn-Py5U - [0:0]",
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utiliptables.Chain("KUBE-SVC-PknUqKuv-LNZiCKRqGm"): ":KUBE-SVC-PknUqKuv-LNZiCKRqGm - [0:0]",
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utiliptables.Chain("KUBE-SVC-RWEx6uDf8yWGww1OQ8E"): ":KUBE-SVC-RWEx6uDf8yWGww1OQ8E - [0:0]",
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utiliptables.Chain("KUBE-SVC-UvIpe7oTYVlacW1-G4C"): ":KUBE-SVC-UvIpe7oTYVlacW1-G4C - [0:0]",
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utiliptables.Chain("KUBE-SVC-g_TrwxBdTXDbEtecmNo"): ":KUBE-SVC-g_TrwxBdTXDbEtecmNo - [0:0]",
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utiliptables.Chain("KUBE-SVC-gvTMDzeC8lcXUan15iP"): ":KUBE-SVC-gvTMDzeC8lcXUan15iP - [0:0]",
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}
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checkAllLines(t, utiliptables.TableNAT, []byte(iptables_save), expected)
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}
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