openstack/tripleo-common
Code Issues Proposed changes

Fix config parsing in memcached healthcheck

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When memcached is configured to listen on multiple IP, or
is configured with TLS-e, make sure the healthcheck parses
the right IP to connect to and its associated port.

Change-Id: Ia0baf8501884d9ed2324938c9acbb30d1687cf27
Closes-Bug: #1929881
This commit is contained in:
Damien Ciabrini 2021-05-28 00:25:25 +02:00
parent 86ba5af3a7
commit 3f84495b8f
1 changed files with 16 additions and 2 deletions
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18
healthcheck/memcached
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@ -1,7 +1,21 @@
#!/bin/bash
. ${HEALTHCHECK_SCRIPTS:-/usr/share/openstack-tripleo-common/healthcheck}/common.sh
listen_addr=$(wrap_ipv6 $(awk 'match($0, /-l +([0-9a-fA-F\.\:]+) /, a) {print a[1]}' /etc/sysconfig/memcached))
# if memcached has TLS enabled, look for a notls ip entry in the options
listen_addr=$(awk 'match($0, /notls:([0-9a-fA-F\.\:]+):11211[, ]/, a) {print a[1]}' /etc/sysconfig/memcached)
echo "version" | socat - TCP:$listen_addr:11211 1>/dev/null
if [ -z "$listen_addr" ]; then
# otherwise look for the first ip available among all the possible ones
# passed to the -l option
listen_addr=$(awk 'match($0, /-l +([0-9a-fA-F\.\:]+)[, ]/, a) {print a[1]}' /etc/sysconfig/memcached)
# get the configured memcached port or the default one
port=$(awk -F= '$1=="PORT" {gsub(/"/, "",$2); print $2}' /etc/sysconfig/memcached)
port=${port:-11211}
else
# with TLS-e, TripleO always exposes the notls IP on port 11211
port=11211
fi
listen_addr=$(wrap_ipv6 $listen_addr)
echo "version" | socat - TCP:$listen_addr:$port 1>/dev/null
exit $?