COMMAND_TO_EXECUTE="filebeat test output" MASTER_CONTAINERS=$(docker ps --format '{{.Names}}' | grep -E 'master') if [ -z "$MASTER_CONTAINERS" ]; then echo "No containers were found with 'master' in their name." else for MASTER_CONTAINERS in $MASTER_CONTAINERS; do docker exec "$MASTER_CONTAINERS" $COMMAND_TO_EXECUTE if [[ $? -eq 0 ]]; then echo "No errors in filebeat" echo "${FILEBEAT_OUTPUT}" else echo "Errors in filebeat" echo "${FILEBEAT_OUTPUT}" exit 1 fi done fi MASTER_CONTAINERS=$(docker ps --format '{{.Names}}' | grep -E 'worker') if [ -z "$MASTER_CONTAINERS" ]; then echo "No containers were found with 'worker' in their name." else for MASTER_CONTAINERS in $MASTER_CONTAINERS; do docker exec "$MASTER_CONTAINERS" $COMMAND_TO_EXECUTE if [[ $? -eq 0 ]]; then echo "No errors in filebeat" echo "${FILEBEAT_OUTPUT}" else echo "Errors in filebeat" echo "${FILEBEAT_OUTPUT}" exit 1 fi done fi