Alex Tomlins 0100a2cb26 prometheus-node-exporter-lua: fix missing conntrack values ... If the /proc/sys/net/netfilter/nc_conntrack_* files are not present, this exporter was outputting a blank value, which is invalid. These files will not be present when using an image that doesn't include the iptables and firewall packages (eg a minimal access-point type image). This updates the collector to only output the metrics if the corresponding /proc files are present. Signed-off-by: Alex Tomlins <alex@tomlins.org.uk>		2019-04-03 21:08:11 +01:00
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lua/prometheus-collectors	prometheus-node-exporter-lua: fix missing conntrack values	2019-04-03 21:08:11 +01:00