dragonfly/tools/docker/healthcheck.sh
Roman Gershman 934a8c64c9
fix: healthcheck for docker containers (#2853)
* fix: healthcheck for docker containers

Fixes #2841

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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
2024-04-07 10:49:00 +03:00

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#!/bin/sh
HOST="localhost"
PORT=$HEALTHCHECK_PORT
if [ -z "$HEALTHCHECK_PORT" ]; then
# check all the TCP listening sockets, filter the dragonfly process, and fetch the port.
# For cases when dragonfly opens multiple ports, we filter with tail to choose one of them.
PORT=$(netstat -tlnp | grep "1/dragonfly" | grep -oE ':[0-9]+' | cut -c2- | tail -n 1)
fi
# If we're running with TLS enabled, utilise OpenSSL for the check
if [ -f "/etc/dragonfly/tls/ca.crt" ]
then
_healthcheck="openssl s_client -connect ${HOST}:${PORT} -CAfile /etc/dragonfly/tls/ca.crt -quiet -no_ign_eof"
else
_healthcheck="nc -q1 $HOST $PORT"
fi
echo PING | ${_healthcheck}
exit $?