Why docker sync files with map folder extremely slow? (Ubuntu) - laravel

Question

On my local machine (Ubuntu 18.04, 8GB RAM, i5, HDD) I have two docker-compose files with my laravel project
docker-compose.yml
version: '3.7'
networks:
backend-network:
driver: bridge
frontend-network:
driver: bridge
services:
&app-service app: &app-service-template
container_name: k4fntr_app
build:
context: ./docker/php-fpm
args:
UID: ${UID?Use your user ID}
GID: ${GID?Use your group ID}
USER: ${USER?Use your user name}
user: "${UID}:${GID}"
hostname: *app-service
volumes:
- /etc/passwd/:/etc/passwd:ro
- /etc/group/:/etc/group:ro
- ./:/var/www/k4fntr
environment:
APP_ENV: "${APP_ENV}"
CONTAINER_ROLE: app
FPM_PORT: &php-fpm-port 9000
FPM_USER: "${UID:-1000}"
FPM_GROUP: "${GID:-1000}"
networks:
- backend-network
&queue-service queue:
<<: *app-service-template
container_name: k4fntr_queue
restart: always
hostname: *queue-service
depends_on:
- app
environment:
CONTAINER_ROLE: queue
&schedule-service schedule:
<<: *app-service-template
container_name: k4fntr_schedule
restart: always
hostname: *schedule-service
depends_on:
- app
environment:
CONTAINER_ROLE: scheduler
&sportlevel-listener sportlevel_listener:
<<: *app-service-template
container_name: k4fntr_sl_listener
restart: always
hostname: *sportlevel-listener
ports:
- "${SPORTLEVEL_LISTEN_PORT}:${SPORTLEVEL_LISTEN_PORT}"
depends_on:
- app
environment:
CONTAINER_ROLE: sl_listener
&php-fpm-service php-fpm:
<<: *app-service-template
container_name: k4fntr_php-fpm
user: 'root:root'
restart: always
hostname: *php-fpm-service
ports: [*php-fpm-port]
entrypoint: /fpm-entrypoint.sh
command: php-fpm --nodaemonize
networks:
- backend-network
- frontend-network
echo-server:
container_name: k4fntr_echo
image: oanhnn/laravel-echo-server
volumes:
- ./:/app
environment:
GENERATE_CONFIG: "false"
depends_on:
- app
ports:
- "6001:6001"
networks:
- backend-network
- frontend-network
redis:
container_name: k4fntr_redis
image: redis
restart: always
command: redis-server
volumes:
- ./docker/redis/config/redis.conf:/usr/local/etc/redis/redis.conf
- ./docker/redis/redis-data:/data:rw
ports:
- "16379:6379"
networks:
- backend-network
and docker-compose-dev.yml
version: '3.7'
volumes:
redis-data:
pg-data:
k4fntr_sync:
external: true
services:
&app-service app: &app-service-template
container_name: k4fntr_app
build:
context: ./docker/php-fpm
args:
UID: ${UID?Use your user ID}
GID: ${GID?Use your group ID}
USER: ${USER?Use your user name}
user: "${UID}:${GID}"
hostname: *app-service
volumes:
- /etc/passwd/:/etc/passwd:ro
- /etc/group/:/etc/group:ro
- k4fntr_sync:/var/www/k4fntr:nocopy
environment:
APP_ENV: "${APP_ENV}"
CONTAINER_ROLE: app
FPM_PORT: &php-fpm-port 9000
FPM_USER: "${UID:-1000}"
FPM_GROUP: "${GID:-1000}"
networks:
- backend-network
&php-fpm-service php-fpm:
<<: *app-service-template
container_name: k4fntr_php-fpm
user: 'root:root'
restart: always
hostname: *php-fpm-service
ports: [*php-fpm-port]
entrypoint: /fpm-entrypoint.sh
command: php-fpm --nodaemonize -d "opcache.enable=0" -d "display_startup_errors=On" -d "display_errors=On" -d "error_reporting=E_ALL"
networks:
- backend-network
- frontend-network
mail:
container_name: k4fntr_mail
image: mailhog/mailhog
ports:
- "1025:1025"
- "8025:8025"
networks:
- backend-network
nginx:
container_name: k4fntr_nginx
image: nginx
volumes:
- ./docker/nginx/config/default:/etc/nginx/conf.d
- k4fntr_sync:/var/www/k4fntr:nocopy
depends_on:
- *php-fpm-service
ports:
- "${NGINX_LISTEN_PORT}:80"
networks:
- frontend-network
database:
container_name: k4fntr_database
build: ./docker/postgres
restart: always
environment:
ENV: ${APP_ENV}
TESTING_DB: ${DB_DATABASE_TESTING}
POSTGRES_DB: ${DB_DATABASE}
POSTGRES_USER: ${DB_USERNAME}
POSTGRES_PASSWORD: ${DB_PASSWORD}
ports:
- "15432:5432"
volumes:
- ./docker/postgres/prod/:/prod
- ./docker/postgres/pg-data:/var/lib/postgresql/data:rw
networks:
- backend-network
The problem is the fact that when I change some files in my project I have to wait a lot of time. From 15 to 40 seconds. It is impossible for local development. How can I solve this problem?
I learned some information with similar problems with other OS such as Mac or Windows, but I can't found the same problems with Linux.

Answer 1

The problem was that I thought that second file (docker-compose-dev.yml) overrided first file. I mean php-fpm section. If you look at docker-compose-dev you can see that there is the command
command: php-fpm --nodaemonize -d "opcache.enable=0" -d "display_startup_errors=On" -d "display_errors=On" -d "error_reporting=E_ALL"
Actually I used first file (what is very strongely, because I used the command
docker-compose -f docker-compose-dev.yml -f docker-compose.yml up
) and my opcache was cached. This was the main reason why I had to wait so long