Basic Nginx + PHP-FPM Docker config

nginx_default.conf

server {
    listen 80;
    index  index.php index.html;
    server_name  localhost;
    root   /var/www/html;
    error_log /var/log/nginx/error;
    access_log /var/log/nginx/access;

    location / {
        # Try to serve file directly, fallback to index.php
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        fastcgi_pass wordpress_service:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        include fastcgi_params;

        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;

        fastcgi_buffer_size 128k;
        fastcgi_buffers 4 256k;
        fastcgi_busy_buffers_size 256k;

        internal;
    }

    location ~ \.php$ {
        return 404;
    }
}

nginx_Dockerfile

FROM nginx:1.19.4-alpine

COPY default.conf /etc/nginx/conf.d/

WORKDIR /var/www/html

wordpress_Dockerfile

FROM wordpress:php7.4-fpm-alpine

WORKDIR /var/www/html