Change filebeat output test for single node test

.github/single-node-filebeat-check.sh

@@ -1,9 +1,20 @@
-filebeatout=$(docker exec single-node_wazuh.manager_1 sh -c 'filebeat test output')
-filebeatstatus=$(echo "${filebeatout}" | grep -c OK)
-if [[ filebeatstatus -eq 7 ]]; then
-  echo "No errors in filebeat"
+COMMAND_TO_EXECUTE="filebeat test output"
+
+MASTER_CONTAINERS=$(docker ps --format '{{.Names}}' | grep -E '*manager*')
+
+if [ -z "$CONTAINER_NAMES" ]; then
+  echo "No se encontraron contenedores con 'master' en su nombre."
 else
-  echo "Errors in filebeat"
-  echo "${filebeatout}"
-  exit 1
+  for MASTER_CONTAINERS in $MASTER_CONTAINERS; do
+    FILEBEAT_OUTPUT=$(docker exec "$MASTER_CONTAINERS" $COMMAND_TO_EXECUTE)
+    FILEBEAT_STATUS=$(echo "${FILEBEAT_OUTPUT}" | grep -c OK)
+    if [[ filebeatstatus -eq 7 ]]; then
+      echo "No errors in filebeat"
+      echo "${FILEBEAT_OUTPUT}"
+    else
+      echo "Errors in filebeat"
+      echo "${FILEBEAT_OUTPUT}"
+      exit 1
+    fi
+  done
 fi