dragonfly/tools/docker/healthcheck.sh
Roman Gershman 63742dd0cf
fix: stop using openssl for container healthchecks (#4181)
Dragonfly responds to ascii based requests to tls port with:
`-ERR Bad TLS header, double check if you enabled TLS for your client.`

Therefore, it is possible to test now both tls and non-tls ports with a plain-text PING.
Fixes #4171

Also, blacklist the bloom-filter test that Dragonfly does not support yet.

Signed-off-by: Roman Gershman <roman@dragonflydb.io>
2024-11-25 17:41:17 +02:00

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#!/bin/sh
HOST="localhost"
PORT=$HEALTHCHECK_PORT
if [ -z "$HEALTHCHECK_PORT" ]; then
# try unpriveleged version first. This should cover cases when the container is running
# without root, for example:
# docker run --group-add 999 --cap-drop=ALL --user 999 docker.dragonflydb.io/dragonflydb/dragonfly
DF_NET=$(netstat -tlnp | grep "1/dragonfly")
if [ -z "$DF_NET" ]; then
# if we failed, then lets try the priveleged version. is triggerred by the regular command:
# docker run docker.dragonflydb.io/dragonflydb/dragonfly
DF_NET=$(su dfly -c "netstat -tlnp" | grep "1/dragonfly")
fi
# check all the TCP ports, and fetch the port.
# For cases when dragonfly opens multiple ports, we filter with tail to choose one of them.
PORT=$(echo $DF_NET | grep -oE ':[0-9]+' | cut -c2- | tail -n 1)
fi
_healthcheck="nc -q1 $HOST $PORT"
echo PING | ${_healthcheck}
exit $?