fix: healthcheck for docker containers (dragonflydb#2853)

* fix: healthcheck for docker containers Fixes dragonflydb#2841 --------- Signed-off-by: Roman Gershman <[email protected]>
sunneydev · Apr 7, 2024 · 934a8c6 · 934a8c6
1 parent 76729d6
commit 934a8c6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/tools/docker/healthcheck.sh b/tools/docker/healthcheck.sh
@@ -4,7 +4,9 @@ HOST="localhost"
 PORT=$HEALTHCHECK_PORT
 
 if [ -z "$HEALTHCHECK_PORT" ]; then
-    PORT=$(netstat -tuln | grep -oE ':[0-9]+' | grep -oE '[0-9]+' | tail -n 1)
+    # 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