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31 lines
1.2 KiB
31 lines
1.2 KiB
local function scrape()
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-- documetation about nf_conntrack:
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-- https://www.frozentux.net/iptables-tutorial/chunkyhtml/x1309.html
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nat_metric = metric("node_nat_traffic", "gauge" )
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for e in io.lines("/proc/net/nf_conntrack") do
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-- output(string.format("%s\n",e ))
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local fields = space_split(e)
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local src, dest, bytes;
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bytes = 0;
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for _, field in ipairs(fields) do
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if src == nil and string.match(field, '^src') then
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src = string.match(field,"src=([^ ]+)");
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elseif dest == nil and string.match(field, '^dst') then
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dest = string.match(field,"dst=([^ ]+)");
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elseif string.match(field, '^bytes') then
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local b = string.match(field, "bytes=([^ ]+)");
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bytes = bytes + b;
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-- output(string.format("\t%d %s",ii,field ));
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end
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end
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-- local src, dest, bytes = string.match(natstat[i], "src=([^ ]+) dst=([^ ]+) .- bytes=([^ ]+)");
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-- local src, dest, bytes = string.match(natstat[i], "src=([^ ]+) dst=([^ ]+) sport=[^ ]+ dport=[^ ]+ packets=[^ ]+ bytes=([^ ]+)")
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local labels = { src = src, dest = dest }
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-- output(string.format("src=|%s| dest=|%s| bytes=|%s|", src, dest, bytes ))
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nat_metric(labels, bytes )
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end
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end
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return { scrape = scrape }
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