From 5e50ba3ecbdd738679849d7a86fef0c4ab7f109d Mon Sep 17 00:00:00 2001 From: Antonio Ojea Date: Fri, 14 Aug 2020 11:19:02 +0200 Subject: podman support for IPv6 networks podman containers using IPv6 were missing the default route, breaking deployments trying to use them. The problem is that the default route was hardcoded to IPv4, this takes into consideration the podman subnet IP family to generate the corresponding default route. Signed-off-by: Antonio Ojea --- test/e2e/network_create_test.go | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'test') diff --git a/test/e2e/network_create_test.go b/test/e2e/network_create_test.go index a69004208..f635f3c6c 100644 --- a/test/e2e/network_create_test.go +++ b/test/e2e/network_create_test.go @@ -179,6 +179,47 @@ var _ = Describe("Podman network create", func() { Expect(subnet.Contains(containerIP)).To(BeTrue()) }) + It("podman network create with name and IPv6 subnet", func() { + SkipIfRemote() + var ( + results []network.NcList + ) + nc := podmanTest.Podman([]string{"network", "create", "--subnet", "fd00:1:2:3:4::/64", "newIPv6network"}) + nc.WaitWithDefaultTimeout() + Expect(nc.ExitCode()).To(BeZero()) + + defer podmanTest.removeCNINetwork("newIPv6network") + + // Inspect the network configuration + inspect := podmanTest.Podman([]string{"network", "inspect", "newIPv6network"}) + inspect.WaitWithDefaultTimeout() + + // JSON the network configuration into something usable + err := json.Unmarshal([]byte(inspect.OutputToString()), &results) + Expect(err).To(BeNil()) + result := results[0] + Expect(result["name"]).To(Equal("newIPv6network")) + + // JSON the bridge info + bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge") + Expect(err).To(BeNil()) + Expect(bridgePlugin.IPAM.Routes[0].Dest).To(Equal("::/0")) + + // Once a container executes a new network, the nic will be created. We should clean those up + // best we can + defer removeNetworkDevice(bridgePlugin.BrName) + + try := podmanTest.Podman([]string{"run", "-it", "--rm", "--network", "newIPv6network", ALPINE, "sh", "-c", "ip addr show eth0 | grep global | awk ' /inet6 / {print $2}'"}) + try.WaitWithDefaultTimeout() + + _, subnet, err := net.ParseCIDR("fd00:1:2:3:4::/64") + Expect(err).To(BeNil()) + containerIP, _, err := net.ParseCIDR(try.OutputToString()) + Expect(err).To(BeNil()) + // Ensure that the IP the container got is within the subnet the user asked for + Expect(subnet.Contains(containerIP)).To(BeTrue()) + }) + It("podman network create with invalid subnet", func() { nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/17000", "fail"}) nc.WaitWithDefaultTimeout() -- cgit v1.2.3-54-g00ecf