Add test dockerfile

docker/Dockerfile.test

@@ -0,0 +1,22 @@
+FROM busybox AS unpack
+WORKDIR /unpack
+COPY output.zip /unpack
+RUN unzip /unpack/output.zip
+
+FROM ghcr.io/openconext/openconext-basecontainers/php82-apache2:latest
+# Set the default workdir
+WORKDIR /var/www/html
+COPY --from=unpack /unpack/ /var/www/html/
+# Add the application configuration files
+COPY config/openconext/parameters.yaml.dist config/openconext/parameters.yaml
+COPY config/openconext/samlstepupproviders_parameters.yaml.dist config/openconext/samlstepupproviders_parameters.yaml
+
+# Add the config files for Apache2
+RUN rm -rf /etc/apache2/sites-enabled/*
+COPY ./docker/conf/apache2.conf /etc/apache2/sites-enabled/apache2.conf
+RUN rm -rf /var/www/html/var/cache/prod &&\
+  mkdir -p /var/www/html/var/cache &&\
+  chown -R www-data /var/www/html/var
+
+EXPOSE 80
+CMD ["apache2-foreground"]