Adds testing-host w/ a dummy project.

docker/testing-host/dummy-project/Dockerfile

@@ -0,0 +1,31 @@
+FROM ubuntu:22.04
+
+ARG WWWGROUP
+
+WORKDIR /var/www/html
+
+ENV DEBIAN_FRONTEND noninteractive
+ENV TZ=UTC
+
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+RUN apt-get update \
+    && apt-get install -y gnupg gosu curl ca-certificates zip unzip git git-lfs supervisor sqlite3 libcap2-bin libpng-dev python2 dnsutils \
+    && curl -sS 'https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x14aa40ec0831756756d7f66c4f4ea0aae5267a6c' | gpg --dearmor | tee /usr/share/keyrings/ppa_ondrej_php.gpg > /dev/null \
+    && echo "deb [signed-by=/usr/share/keyrings/ppa_ondrej_php.gpg] https://ppa.launchpadcontent.net/ondrej/php/ubuntu jammy main" > /etc/apt/sources.list.d/ppa_ondrej_php.list \
+    && apt-get update \
+    && apt-get install -y php8.2-cli php8.2-dev \
+    php8.2-curl php8.2-mbstring php8.2-xml php8.2-zip php8.2-bcmath \
+    php8.2-intl php8.2-readline php8.2-msgpack php8.2-igbinary \
+    && php -r "readfile('https://getcomposer.org/installer');" | php -- --install-dir=/usr/bin/ --filename=composer \
+    && apt-get -y autoremove \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+RUN setcap "cap_net_bind_service=+ep" /usr/bin/php8.2
+
+EXPOSE 8000
+
+COPY . .
+
+ENTRYPOINT ["php", "-S", "0.0.0.0:8000"]

docker/testing-host/dummy-project/docker-compose.yml

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+version: "3"
+
+services:
+    dummy-project:
+        image: dummy-project
+        build:
+            context: .
+            dockerfile: Dockerfile
+        extra_hosts:
+            - "host.docker.internal:host-gateway"

docker/testing-host/dummy-project/index.php

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+<?php
+
+echo "Hello World! " . date('Y-m-d H:i:s');