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CHANGELOG-1.4.md

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Changelog 1.4

1.4.0 - 2021-11-05

The NodePortLocal feature is graduated from Alpha to Beta.

Added

  • Support for proxying all Service traffic by Antrea Proxy, including NodePort, LoadBalancer, and ClusterIP traffic. Therefore, running kube-proxy is no longer required. (#2599 #2235 #2897 #2863, @hongliangl @lzhecheng)
    • The feature works for both Linux and Windows
    • The feature is experimental and therefore disabled by default. Use the antreaProxy.proxyAll configuration parameter for the Antrea Agent to enable it
    • If kube-proxy is removed, the kubeAPIServerOverride configuration parameter for the Antrea Agent must be set to access kube-apiserver directly
  • Add AntreaIPAM feature that allows flexible control over Pod IP Addressing by assigning pools of IP addresses to specific Namespaces. (#2956, @gran-vmv @annakhm)
    • Add new IPPool API to define ranges of IP addresses which can be used as Pod IPs; the IPs in the IPPools must be in the same "underlay" subnet as the Node IP
    • A Pod's IP will be allocated from the IPPool specified by the ipam.antrea.io/ippools annotation of the Pod's Namespace if there is one
    • When the feature is enabled, the Node's network interface will be connected to the OVS bridge, in order to forward cross-Node traffic of AntreaIPAM Pods through the underlay network
    • Refer to the feature documentation for more information
  • Add NodeIPAM feature to handle the per-Node PodCIDR allocation for clusters where kube-controller-manager does not run NodeIPAMController. (#1561, @ksamoray)
  • Support for configurable transport interface CIDRs for Pod traffic. (#2704, @Jexf)
    • Use the transportInterfaceCIDRs configuration parameter for the Antrea Agent to choose an interface by network CIDRs
  • Add UDP support for NodePortLocal. (#2448, @chauhanshubham)
  • Add the nodePortLocal.enable configuration parameter for the Antrea Agent to enable NodePortLocal. (#2924, @antoninbas)
  • Add more visibility metrics to report the connection status of the Antrea Agent to the Flow Aggregator. (#2668, @zyiou)
  • Add the antreaProxy.skipServices configuration parameter for the Antrea Agent to specify Services which should be ignored by AntreaProxy. (#2882, @luolanzone)
    • A typical use case is setting antreaProxy.skipServices to ["kube-system/kube-dns"] to make NodeLocal DNSCache work when AntreaProxy is enabled
  • Add support for ToServices in the rules of Antrea-native policies to allow matching traffic intended for Services. (#2755, @GraysonWu)
  • Add the egress.exceptCIDRs configuration parameter for the Antrea Agent, to specify IP destinations for which SNAT should not be performed on outgoing traffic. (#2749, @leonstack)
  • Add user documentation for WireGuard encryption. (#2902, @jianjuns)
  • Add user documentation for encap mode installation for EKS. (#2929, @jianjuns)

Changed

  • Remove chmod for OVSDB file from start_ovs, as the permissions are set correctly by OVS 2.15.1. (#2803, @antoninbas)
  • Reduce memory usage of antctl when collecting supportbundle. (#2813, @tnqn)
  • Do not perform SNAT for egress traffic to Kubernetes Node IPs. (#2762, @leonstack)
  • Send gratuitous ARP for EgressIP via the transport interface, as opposed to the interface with Node IP (if they are different). (#2845, @Jexf)
  • Ignore hostNetwork Pods selected by Egress, as they are not supported. (#2851, @Jexf)
  • Avoid duplicate processing of Egress. (#2884, @Jexf)
  • Ignore the IPs of kube-ipvs0 for Egress as they cannot be used for SNAT. (#2930, @Jexf)
  • Change flow exporter export expiry mechanism to priority queue based, to reduce CPU usage and memory footprint. (#2360, @heanlan)
  • Make Pod labels optional in the flow records. By default, they will not be included in the flow records. Use the recordContents.podLabels configuration parameter for the Flow Aggregator to include them. (#2739, @yanjunz97)
  • Wait for AntreaProxy to be ready before accessing any K8s Service if antreaProxy.proxyAll is enabled, to avoid connection issues on Agent startup. (#2858, @tnqn)
  • Update OVS pipeline documentation to include information about AntreaProxy. (#2725, @hongliangl)
  • Remove offensive words from scripts and documentation. (#2799, @xiaoxiaobaba)
  • Use readable names for OpenFlow tables. (#2585, @wenyingd)
  • Improve the OpenAPI schema for CRDs to validate the matchExpressions field. (#2887, @wenqiq)
  • Fail fast if the source Pod for non-live-traffic Traceflow is invalid. (#2736, @gran-vmv)
  • Use the RenewIPConfig parameter to indicate whether to renew ipconfig on the host for Clean-AntreaNetwork.ps1. It defaults to false. (#2955, @wenyingd) [Windows]
  • Add Windows task delay up to 30s to improve job resiliency of Prepare-AntreaAgent.ps1, to avoid a failure in initialization after Windows startup. (#2864, @perithompson) [Windows]

Fixed

  • Fix nil pointer error when antrea-agent updates OpenFlow priorities of Antrea-native policies without Service ports. (#2730, @wenyingd)
  • Fix panic in the Antrea Controller when it processes ClusterGroups that are used by multiple ClusterNetworkPolicies. (#2768, @tnqn)
  • Fix an issue with NodePortLocal when a given Pod port needs to be exposed for both TCP and UDP. (#2903, @antoninbas)
  • Fix handling of the "Reject" action of Antrea-native policies when the traffic is intended for Services. (#2772, @GraysonWu)
  • Fix Agent crash when removing the existing NetNat on Windows Nodes. (#2751, @wenyingd) [Windows]
  • Fix container network interface MTU configuration error when using containerd as the runtime on Windows. (#2778, @wenyingd) [Windows]
  • Fix path to Prepare-AntreaAgent.ps1 in Windows docs. (#2840, @perithompson) [Windows]
  • Fix NetNeighbor Powershell error handling. (#2905, @lzhecheng) [Windows]