NGINX default.conf

server {
    listen	80;
    server_name	DEFAULT_SERVER_NAME;

    return 301 https://DOMAINNAME$request_uri$is_args$args;
}
server {
    listen      80;
    server_name *.DOMAINNAME;

     #Rewrite all nonssl requests to ssl.
     return 301 https://DOMAINNAME$request_uri$is_args$args;
}
server {
    listen 80;
    listen [::]:80 default_server ipv6only=on;

    listen 443 ssl;
    listen [::]:443 ssl;

    server_name SERVER_NAME;

    ssl_certificate /etc/letsencrypt/live/DOMAINNAME/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/DOMAINNAME/privkey.pem;

    access_log      /var/log/nginx/access.log;
    error_log       /var/log/nginx/error.log;
    rewrite_log     on;
    access_log      on;

    root /PATH/TO/PROJECT;

    index index.html index.htm index.php;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    # Remove trailing slash.
    if (!-d $request_filename) {
        rewrite     ^/(.+)/$ /$1 permanent;
    }

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass PHP_FPM_IP:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

        fastcgi_intercept_errors off;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
    }

    # We don't need .ht files with Nginx.
    location ~ /\.ht {
        deny all;
    }

    location ~ /.well-known {
        allow all;
    }

    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
}

PHP7 Dockerfile

FROM php:7-fpm
COPY . /PATH/TO/PROJECT
WORKDIR /PATH/TO/PROJECT
RUN apt-get update && apt-get install -y \
        libfreetype6-dev \
        libjpeg62-turbo-dev \
        libmcrypt-dev \
        libpng12-dev \
    && chown -R www-data /PATH/TO/PROJECT \
    && chmod -R gu+w /PATH/TO/PROJECT/storage \
    && chmod -R guo+w /PATH/TO/PROJECT/storage \
    && docker-php-ext-install -j$(nproc) iconv pdo pdo_mysql mcrypt gd \
    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
    && pecl install zip \
    && docker-php-ext-enable zip