adding a docker-compose file for starting a server

Dockerfile

@@ -0,0 +1,23 @@
+FROM php:7.4-cli
+
+RUN apt-get update
+RUN apt-get install -y git libzip-dev zip
+
+RUN docker-php-ext-install zip
+
+# Get latest Composer
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+COPY . /src
+WORKDIR /src
+
+# install the dependencies
+RUN composer install -o --prefer-dist && chmod a+x expose
+
+ENV port=8080
+ENV domain=localhost
+ENV username=username
+ENV password=password
+ENV exposeConfigPath=/src/config/expose.php
+
+CMD sed -i "s|username|${username}|g" ${exposeConfigPath} && sed -i "s|password|${password}|g" ${exposeConfigPath} && php expose serve ${domain} --port ${port} --validateAuthTokens