openstack/openstack-helm-infra
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Merge "[update] Node problem detector path for conntrack"

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Zuul 2020-09-14 14:51:09 +00:00 committed by Gerrit Code Review
commit 74996ccce8
1 changed files with 9 additions and 15 deletions
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24
kubernetes-node-problem-detector/values.yaml
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@ -411,25 +411,19 @@ conf:
#!/bin/bash
# This plugin checks for common network issues. Currently, it only checks
# if the conntrack table is full.
# if the conntrack table is 50% full.
set -eu
set -o pipefail
OK=0
NONOK=1
UNKNOWN=2
conntrack_threshold=$(($(cat /proc/sys/net/netfilter/nf_conntrack_max)/2 ))
conntrack_count=$(cat /proc/sys/net/netfilter/nf_conntrack_count)
[ -f /proc/sys/net/ipv4/netfilter/ip_conntrack_max ] || exit $UNKNOWN
[ -f /proc/sys/net/ipv4/netfilter/ip_conntrack_count ] || exit $UNKNOWN
conntrack_max=$(cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max)
conntrack_count=$(cat /proc/sys/net/ipv4/netfilter/ip_conntrack_count)
if (( conntrack_count >= conntrack_max )); then
echo "Conntrack table full"
exit $NONOK
if [ "$conntrack_count" -ge "$conntrack_threshold" ]; then
echo "Conntrack table approaching full"
exit 1
fi
echo "Conntrack table available"
exit $OK
exit 0
config:
network-problem-monitor:
plugin: custom