Added a dockerfile with xdebug for development

Dockerfile-xdebug

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+# Start with the official composer image, copy application files and install
+# dependencies.
+FROM composer AS builder
+COPY jumpapp/ /app
+RUN composer install --no-dev \
+  --optimize-autoloader \
+  --no-interaction \
+  --no-progress
+
+# Switch to base alpine image so we can copy application files into it.
+FROM alpine:latest
+
+WORKDIR /var/www/html
+
+# Create a non-root user for running nginx and php.
+RUN addgroup -S jumpapp && \
+    adduser \
+      --disabled-password \
+      --ingroup jumpapp \
+      --no-create-home \
+      jumpapp
+
+# Copy the built files from composer, chowning as jumpapp or they will
+# be owned by root.
+COPY --chown=jumpapp --from=builder /app /usr/src/jumpapp
+
+# Install required packages.
+RUN apk add --no-cache \
+  bash \
+  curl \
+  nginx \
+  php8 \
+  php8-curl \
+  php8-dom \
+  php8-fileinfo \
+  php8-fpm \
+  php8-json \
+  php8-opcache \
+  php8-openssl \
+  php8-session \
+  php8-xml \
+  php8-zlib \
+  php8-xdebug
+
+# Create symlink for anything expecting to use "php".
+RUN ln -s /usr/bin/php8 /usr/bin/php
+
+# Nginx config.
+COPY docker/nginx.conf /etc/nginx/nginx.conf
+
+# PHP/FPM config.
+COPY docker/fpm-pool.conf /etc/php8/php-fpm.d/www.conf
+COPY docker/php.ini /etc/php8/conf.d/custom.ini
+COPY docker/xdebug.ini /etc/php8/conf.d/50_xdebug.ini
+
+COPY docker/entrypoint.sh /usr/local/bin/
+
+# Create the cache directories and change owner of everything we need.
+RUN mkdir -p /var/www/cache/application \
+    && mkdir -p /var/www/cache/icons \
+    && chown -R jumpapp:jumpapp /var/www/html /var/www/cache/icons \
+    /var/www/cache/application \
+    && chmod +x /usr/local/bin/entrypoint.sh
+
+# Expose the port we configured for nginx.
+EXPOSE 8080
+
+ENTRYPOINT ["entrypoint.sh"]

docker/xdebug.ini

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+zend_extension=xdebug.so
+
+xdebug.mode=debug
+xdebug.discover_client_host = true
+xdebug.start_with_request=trigger
+xdebug.log="/tmp/xdebug.log"