test: Add e2e test for ip-masq-agent with IPv4 only

In order to detect issues occurring with ip-masq-agent when IPv4 only is enabled, add a new test to deploy the ip-masq-agent without IPv6. Signed-off-by: Quentin Monnet <quentin@isovalent.com>
cilium · Jun 26, 2023 · fa67780 · fa67780
1 parent bdf888a
commit fa67780
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diff --git a/.github/actions/ginkgo/main-focus.yaml b/.github/actions/ginkgo/main-focus.yaml
@@ -108,6 +108,7 @@ include:
 
   ###
   # K8sDatapathConfig Check BPF masquerading with ip-masq-agent DirectRouting
+  # K8sDatapathConfig Check BPF masquerading with ip-masq-agent DirectRouting, IPv4 only
   # K8sDatapathConfig Check BPF masquerading with ip-masq-agent VXLAN
   # K8sDatapathConfig High-scale IPcache Test ingress policy enforcement with GENEVE and endpoint routes
   # K8sDatapathConfig High-scale IPcache Test ingress policy enforcement with VXLAN and no endpoint routes

diff --git a/test/k8s/datapath_configuration.go b/test/k8s/datapath_configuration.go
@@ -361,6 +361,18 @@ var _ = Describe("K8sDatapathConfig", func() {
 			testIPMasqAgent()
 		})
 
+		It("DirectRouting, IPv4 only", func() {
+			deploymentManager.DeployCilium(map[string]string{
+				"ipMasqAgent.enabled":                   "true",
+				"routingMode":                           "native",
+				"autoDirectNodeRoutes":                  "true",
+				"ipMasqAgent.config.nonMasqueradeCIDRs": fmt.Sprintf("{%s/32}", nodeIP),
+				"ipv6.enabled":                          "false",
+			}, DeployCiliumOptionsAndDNS)
+
+			testIPMasqAgent()
+		})
+
 		It("VXLAN", func() {
 			deploymentManager.DeployCilium(map[string]string{
 				"ipMasqAgent.enabled":                   "true",