[IPv6] Add support for dual-stack when using kube-proxy for Service #1200

wenyingd · 2020-09-02T12:30:21Z

Add a config item for IPv6 Serivce CIDR if using kube-proxy to
provide Service functions.
Output IPv6 traffic from host gateway if its destination is a
Service address.
Use ct_mark to identify Service traffic and output the reply
packet to the host gateway to ensure the DNAT processing in iptables.

antrea-bot · 2020-09-02T12:30:35Z

Thanks for your PR.
Unit tests and code linters are run automatically every time the PR is updated.
E2e, conformance and network policy tests can only be triggered by a member of the vmware-tanzu organization. Regular contributors to the project should join the org.

The following commands are available:

/test-e2e: to trigger e2e tests.
/skip-e2e: to skip e2e tests.
/test-conformance: to trigger conformance tests.
/skip-conformance: to skip conformance tests.
/test-whole-conformance: to trigger all conformance tests on linux.
/skip-whole-conformance: to skip all conformance tests on linux.
/test-networkpolicy: to trigger networkpolicy tests.
/skip-networkpolicy: to skip networkpolicy tests.
/test-windows-conformance: to trigger windows conformance tests.
/skip-windows-conformance: to skip windows conformance tests.
/test-windows-networkpolicy: to trigger windows networkpolicy tests.
/skip-windows-networkpolicy: to skip windows networkpolicy tests.
/test-hw-offload: to trigger ovs hardware offload test.
/skip-hw-offload: to skip ovs hardware offload test.
/test-all: to trigger all tests (except whole conformance).
/skip-all: to skip all tests (except whole conformance).

codecov-commenter · 2020-09-02T12:34:05Z

Codecov Report

Merging #1200 into ipv6 will decrease coverage by 0.31%.
The diff coverage is 2.31%.

@@            Coverage Diff             @@
##             ipv6    #1200      +/-   ##
==========================================
- Coverage   42.18%   41.86%   -0.32%     
==========================================
  Files          76       76              
  Lines       11218    11291      +73     
==========================================
- Hits         4732     4727       -5     
- Misses       6103     6179      +76     
- Partials      383      385       +2

Flag	Coverage Δ
#unit-tests	`41.86% <2.31%> (-0.32%)`	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/agent/agent.go	`13.74% <0.00%> (-0.04%)`	⬇️
pkg/agent/openflow/client.go	`10.54% <0.00%> (ø)`
pkg/agent/util/iptables/iptables.go	`0.00% <0.00%> (ø)`
pkg/agent/util/net.go	`30.64% <0.00%> (-1.03%)`	⬇️
pkg/agent/openflow/pipeline.go	`21.07% <3.27%> (-1.15%)`	⬇️
pkg/apiserver/certificate/certificate.go	`72.83% <0.00%> (-6.18%)`	⬇️

wenyingd · 2020-09-07T03:15:25Z

/test-all

cmd/antrea-agent/agent.go

wenyingd · 2020-09-07T11:31:04Z

/test-all

wenyingd · 2020-09-09T01:50:23Z

/test-all

lzhecheng · 2020-09-09T02:13:41Z

/test-ipv6-conformance

lzhecheng · 2020-09-09T02:53:37Z

/test-ipv6-conformance

lzhecheng · 2020-09-09T03:35:47Z

/test-ipv6-conformance

build/yamls/base/conf/antrea-agent.conf

wenyingd · 2020-09-11T09:24:52Z

/test-all

build/yamls/antrea-aks.yml

cmd/antrea-agent/options.go

pkg/agent/agent.go

pkg/agent/route/route_linux.go

pkg/agent/agent.go

pkg/agent/openflow/pipeline.go

wenyingd · 2020-09-14T11:40:46Z

/test-all

…1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…ntrea-io#1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…ntrea-io#1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…ntrea-io#1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

…1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables.

* Enable verbose logging through generate-manifest.sh (#1142) This patch enables verbose logging for antrea-agent and antrea-controller when generate manifest. This will help in troubleshooting with increased log level. * Bug in PR#1142 (#1248) manifest generation failing in release mode. Fixed the bug. * [IPv6] Consume Node.Spec.CIDRs to support dual-stack configuration (#971) 1. Consume Node.Spec.CIDRs to support IPv4/IPv6 dual-stack Pod Subnets 2. Change NodeConfig.PodCIDR as a slice 3. Change GatewayConfig.IP as a slice to support multiple addresses for antrea-gw0 4. Change InterfaceConfig.IP as a slice to support multiple address for a Pod * [IPv6] Change openflow pipeline for L2 Pod networking (#1040) 1. Add a new table named IPv6 to handle IPv6 ND Solicitation, ND advertisement and IPv6 Multicast traffic. 2. Add flows in openflow tables (spoofGuardTable, IPv6, conntrackTable, conntrackStateTable, conntrackCommitTable, L2ForwardingOutTable) for handling IPv6 L2 Pod networking. * [IPv6] Change host-local IPAM configuration for IPv6 (#1039) 1. Add new field Ranges in IPAMConfig for allocating both IPv4 and IPv6 addresses. 2. Populate subnet and gateway for both IPv4 range and IPv6 range. * [IPv6] Use separate fields for IPv4 and IPv6 in GatewayConfig (#1111) Replace IP slice in GatewayConfig with separate IPv4 and IPv6 fields. * [IPv6] Implement L3 connectivity for IPv6 traffic (#1011) 1. Use IPv6 in iptables and ipset configuration. 2. Identifiy IPv6 address and configure in OpenFlow. 3. Use Node Internal address for tunnel. * [IPv6] Handle Spec.PodCIDR with IPv6 CIDR (#1151) For IPv6 single stack case, node.Spec.PodCIDR is configured with IPv6 CIDR. This patch handles the case and sets nodeConfig.PodIPv6CIDR with parsed CIDR. * [IPv6] Add support for IPv6 address in antctl and agent's apiserver (#1118) * [IPv6] Add support for IPv6 address in antctl and agent's apiserver 1. Support using IPv6 address in OVS tracing. 2. Support displaying Node's and Pod's IPv6 address in agent apiserver. Co-authored-by: Zhecheng Li <zhechel1@uci.edu> * [IPv6] Support IPv6 in e2e (#1129) * [IPv6] Display dual stack NodeSubnet in antrea-octant-plugin (#1156) NodeSubnet can have two values in dual stack case and this patch enhances octant-plugin to show both subnets. * [IPv6] Handle dual stack NodeSubnet for monitoring CRD (#1182) 1. Rename NodeSubnet to NodeSubnets for AntreaAgentInfo. 2. Make a new string slice for dual stack node subnet instead of appending agentInfo.NodeSubnets directly to avoid duplicate CIDRs. * [IPv6][e2e] Fix testDeletePod (#1193) On a dual-stack cluster, podInterfaces[0].IP returns "[ipv4-address], [ipv6-address]". Current implementation doesn't distingush two. * [IPv6] Collect service CIDR in e2e * [IPv6] Add support for dual-stack when using kube-proxy for Service (#1200) 1. Add a config item for IPv6 Serivce CIDR if using kube-proxy to provide Service functions. 2. Output IPv6 traffic from host gateway if its destination is a Service address. 3. Use ct_mark to identify Service traffic and output the reply packet to the host gateway to ensure the DNAT processing in iptables. * [IPv6] Extend e2e tests for dual-stack (#1192) 1. Extend generic functions "podWaitForIP" to return all assigned IPs of a given Pod. 2. Validate each IP address in the cluster's network CIDR 3. Use each valid IP to check connectivity. 4. Use each valid IP to execute tests. * [IPv6] E2e bug fixes (#1311) 1. No -6 option in busybox nc So, no need to distinguish if it is an IPv6 environment for runNetcatCommandFromTestPod() nc BusyBox v1.31.1 (2019-10-28 18:40:01 UTC) multi-call binary. Usage: nc [OPTIONS] HOST PORT - connect nc [OPTIONS] -l -p PORT [HOST] [PORT] - listen -e PROG Run PROG after connect (must be last) -l Listen mode, for inbound connects -lk With -e, provides persistent server -p PORT Local port -s ADDR Local address -w SEC Timeout for connects and final net reads -i SEC Delay interval for lines sent -n Don't do DNS resolution -u UDP mode -v Verbose -o FILE Hex dump traffic -z Zero-I/O mode (scanning) 2. testCert * IPv6 address should be in "[]" * [IPv6] Fix TestReconcileGatewayRoutesOnStartup failure (#1313) Use "ip -6 route" for IPv6 network. * [IPv6] adjust MTU for IPv6 overhead (#1305) If Antrea MTU is too large in IPv6 environment, large packet with overhead exceeds node MTU cannot be transmitted successfully across nodes. IPv6ExtraOverhead, 20 is from observation of IPv4 and IPv6 packets under same situation. * [IPv6] Fix MTU config (#1317) Use Node's internal address to decide if extra IPv6 overhead is needed. * [IPv6] Skip IPsec e2e test (#1373) * With OVS v2.14.0, IPsec in IPv6 envinronment is not supported. * More user-friendly output for PodIPs. From: Retrieved all Pod IPs: map[test-pod-0-upgp1ung:0xc000708960 test-pod-1-pbva9007:0xc0006ec8a0] To: Retrieved all Pod IPs: map[test-pod-0-mudzj847:IPv6: fd74:ca9b:172:16::4, IP strings: fd74:ca9b:172:16::4 test-pod-1-apcmyd30:IPv6: fd74:ca9b:172:16:1::3c, IP strings: fd74:ca9b:172:16:1::3c] * [IPv6] Add 2 Network Policy tests (#1399) 2 upstream Network Policy tests didn't consider netmask for IPv6, this patch is to add correct tests. When bug is fixed in latest release, these 2 tests can be deleted. Kubernetes PR: kubernetes/kubernetes#93583 2 testcases: https://github.com/kubernetes/kubernetes/blob/v1.20.0-alpha.0/test/e2e/network/network_policy.go#L1365 https://github.com/kubernetes/kubernetes/blob/v1.20.0-alpha.0/test/e2e/network/network_policy.go#L1444 * Skip 2 Network Policy testcases before Network Policy IPv6 is supported (#1460) * [IPv6] Fix after rebasing * format code * fix TestPodTrafficShaping * fix TestIPv6RoutesAndNeighbors * [IPv6] Fix issues (#1496) * unit test * manifest * [IPv6] Skip TestAntctlProxy for IPv6 (#1498) * [IPv6] Add IPv6 support for NetworkPolicy 1. Add enhancement in Antrea Controller and Agent to support NetworkPolicy in IPv6. 2. Optimize test cases to support IPv6 3. Use regex in CRD to validate IPv4 or IPv6 string 4. Add TestEgressToServerInCIDRBlock and TestEgressToServerInCIDRBlockWithException 5. networkpolicy_controller.go: PodIPs includes PodIP * [IPv6] Fix issues * remove Github Actions integration test, Jenkins: jenkins-integration -> Integration tests * go fmt * add FlowProtocl() to interface Flow * remove extra lines when rebasing for an octant commit * TestIPv6RoutesAndNeighbors: routeClient.Initialize Co-authored-by: srikartati <stati@vmware.com> Co-authored-by: Wenying Dong <wenyingd@vmware.com> Co-authored-by: Mengdie Song <songm@vmware.com> Co-authored-by: Zhecheng Li <zhechel1@uci.edu>

wenyingd requested review from ksamoray, mengdie-song, lzhecheng and jianjuns September 2, 2020 12:30

vmwclabot added the cla-not-required label Sep 2, 2020

wenyingd force-pushed the ipv6_service branch from 7d35a5e to fe16c79 Compare September 2, 2020 12:39

wenyingd force-pushed the ipv6 branch from 488f5f2 to a979177 Compare September 7, 2020 01:54

wenyingd force-pushed the ipv6_service branch from fe16c79 to 1911f5a Compare September 7, 2020 03:12

lzhecheng reviewed Sep 7, 2020

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wenyingd force-pushed the ipv6_service branch from 1911f5a to bb65436 Compare September 7, 2020 10:12

wenyingd requested review from tnqn and removed request for mengdie-song September 8, 2020 01:13

wenyingd force-pushed the ipv6_service branch from bb65436 to dcef4ff Compare September 8, 2020 11:13

wenyingd requested review from weiqiangt and removed request for ksamoray September 10, 2020 04:47

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wenyingd force-pushed the ipv6_service branch from dcef4ff to f329e98 Compare September 11, 2020 09:14

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wenyingd force-pushed the ipv6_service branch from f329e98 to f76f059 Compare September 14, 2020 11:05

wenyingd merged commit 69b38e7 into antrea-io:ipv6 Sep 16, 2020

wenyingd mentioned this pull request Nov 16, 2020

IPv6 support - including dual stack #136

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wenyingd deleted the ipv6_service branch August 2, 2021 03:07

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[IPv6] Add support for dual-stack when using kube-proxy for Service #1200

[IPv6] Add support for dual-stack when using kube-proxy for Service #1200

wenyingd commented Sep 2, 2020

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wenyingd commented Sep 14, 2020

[IPv6] Add support for dual-stack when using kube-proxy for Service #1200

[IPv6] Add support for dual-stack when using kube-proxy for Service #1200

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