Docker WordPress container with custom php.ini file settings

I’m running WordPress (and PHPMyAdmin and MySQL) in a Docker container, and I need to make a change to increase the maximum uploadable file size for PHPMyAdmin

I researched a number of solutions and found a suggestion to create a custom uploads.ini file and then include this file in the docker-compose file.

So I have this:

uploads.ini

file_uploads = On
memory_limit = 64M
upload_max_filesize = 64M
post_max_size = 64M
max_execution_time = 600

docker-compose.yml

version: '3'

services:
  # Database
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    networks:
      - wpsite
  # phpmyadmin
  phpmyadmin:
    depends_on:
      - db
    image: phpmyadmin/phpmyadmin
    restart: always
    ports:
      - '8080:80'
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORD: password 
    networks:
      - wpsite
  # WordPress
  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    ports:
      - '8000:80'
    restart: always
    volumes:
      - './:/var/www/html'
      - ./uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
    networks:
      - wpsite
networks:
  wpsite:
volumes:
  db_data:

I have included the uploads.ini file in the volumes for wordpress

volumes:
      - './:/var/www/html'
      - ./uploads.ini:/usr/local/etc/php/conf.d/uploads.ini

But sadly after running the docker-compose and opening localhost:8080 to go to PHPMyAdmin I still only have a maximum file upload size of 2m, not the 64m in my custom file

Source: StackOverflow