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netlink bridgefdb - #40
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plan9better wants to merge 2 commits into
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plan9better wants to merge 2 commits into
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… out to `bridge` The iface-request init container crashes on startup with "Error appending to bridge fdb: exec: \"bridge\": executable file not found in $PATH" because the vxlandlord image does not install iproute2, so the external `bridge` binary this code shells out to is never present. Every other network operation in this file (link/addr/route management) already goes through vishvananda/netlink directly - this was the one exception. Replace the `bridge fdb append` exec.Command call with an equivalent netlink.NeighAppend (family AF_BRIDGE, NTF_SELF, NUD_PERMANENT), removing the dependency on the external binary entirely rather than just adding iproute2 to the image. Verified: go build/vet/gofmt clean, and confirmed at runtime in a live cluster - a workload pod annotated to use an IPSecConnection child now gets its iface-request init container to Completed instead of Init:Error, and traffic reaches the remote subnet through the tunnel.
…inary Mirrors cmd/vxlandlord's fix for the same issue: the ko-built image has no bridge/iproute2 binary, so shelling out to it always fails with "exec: \"bridge\": executable file not found in $PATH". Replaces both the add and delete paths (and the delete path's extra `bridge fdb show | grep | xargs bridge fdb del` cleanup pipeline) with equivalent netlink calls (NeighAppend/NeighDel/NeighList). Verified: go build/vet/gofmt clean, and confirmed at runtime in a live cluster - the xfrm-pod's restctl calls to add/delete FDB entries now succeed instead of failing on a missing binary.
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