diff --git a/development/env_upgrade.sh b/development/env_upgrade.sh
new file mode 100755
index 0000000..9392a9e
--- /dev/null
+++ b/development/env_upgrade.sh
@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+# backup old .env
+cp ./.env ./.env.old
+
+# delete unnecessary lines
+OS=$(uname)
+if [ "$OS" == "Linux" ]; then
+  sed -i '/PROJECT_ROOT.*$/d' .env
+  sed -i '/CONTAINER_NAME.*$/d' .env
+elif [ "$OS" == "Darwin" ]; then
+  sed -i '' '/PROJECT_ROOT.*$/d' .env
+  sed -i '' '/CONTAINER_NAME.*$/d' .env
+fi
+
+
+# insert new lines
+echo "LE_EMAIL=\"\"" >> .env
+echo "MYSQL_HOST=\"mariadb\"" >> .env
+echo "MYSQL_PORT=\"3306\"" >> .env
+echo "MYSQL_USER=\"root\"" >> .env
+echo "MYSQL_PF_DB_NAME=\"pathfinder\"" >> .env
+echo "MYSQL_UNIVERSE_DB_NAME=\"eve_universe\"" >> .env
+echo "MYSQL_CCP_DB_NAME=\"eve_lifeblood_min\"" >> .env
+echo "REDIS_HOST=\"redis\"" >> .env
+echo "REDIS_PORT=\"6379\"" >> .env
+echo "PATHFINDER_SOCKET_HOST=\"pathfinder-socket\"" >> .env
+echo "PATHFINDER_SOCKET_PORT=\"5555\"" >> .env
+echo "SMTP_HOST=\"\"" >> .env
+echo "SMTP_PORT=\"\"" >> .env
+echo "SMTP_SCHEME=\"\"" >> .env
+echo "SMTP_USER=\"\"" >> .env
+echo "SMTP_PASS=\"\"" >> .env
+echo "SMTP_FROM=\"\"" >> .env
+echo "SMTP_ERROR=\"\"" >> .env
+
+# sort new file alphabetically into .new file
+cat .env | sort > ./.env.new
+
+# print new file for inspection
+echo ""
+cat ./.env.new
+
+# user input to check and save/abort
+while true; do
+  echo ""
+  read -p "Overwrite .env with the new file? Y/n: " yn
+  case $yn in
+    [Yy]* ) mv ./.env.new ./.env; echo "Created new .env, old version backed up to .env.old"; break;;
+    [Nn]* ) mv ./.env.old ./.env; echo "Aborting overwrite, new file saved as .env.new" ; exit;;
+    * ) echo "Y/n";;
+  esac
+done
diff --git a/development/pathfinder.Dockerfile.develop b/development/pathfinder.Dockerfile.develop
new file mode 100644
index 0000000..b7f2bd0
--- /dev/null
+++ b/development/pathfinder.Dockerfile.develop
@@ -0,0 +1,58 @@
+FROM php:7.2.11-fpm-alpine3.7 as build
+
+RUN apk update \
+    && apk add --no-cache libpng-dev  zeromq-dev git \
+    $PHPIZE_DEPS \ 
+    && docker-php-ext-install gd && docker-php-ext-install pdo_mysql && \
+    pecl install redis && docker-php-ext-enable redis && \
+    pecl install channel://pecl.php.net/zmq-1.1.3 && docker-php-ext-enable zmq && \
+    curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
+
+COPY pathfinder /app
+WORKDIR /app
+
+RUN composer self-update 2.1.8
+RUN composer install
+
+FROM trafex/alpine-nginx-php7:ba1dd422
+
+RUN apk update && apk add --no-cache busybox-suid sudo php7-redis php7-pdo php7-pdo_mysql php7-fileinfo php7-event shadow gettext bash apache2-utils logrotate
+
+# symlink nginx logs to stdout/stderr for supervisord
+RUN ln -sf /dev/stdout /var/log/nginx/access.log \
+ && ln -sf /dev/stderr /var/log/nginx/error.log
+
+COPY static/logrotate/pathfinder /etc/logrotate.d/pathfinder
+COPY static/nginx/nginx.conf /etc/nginx/templateNginx.conf
+# we need to create sites_enabled directory in order for entrypoint.sh being able to copy file after envsubst
+RUN mkdir -p /etc/nginx/sites_enabled/
+COPY static/nginx/site.conf  /etc/nginx/templateSite.conf
+
+# Configure PHP-FPM
+COPY static/php/fpm-pool.conf /etc/php7/php-fpm.d/zzz_custom.conf
+
+# DEBUG
+RUN apk add php7-xdebug --repository http://dl-3.alpinelinux.org/alpine/edge/testing/
+COPY static/php/xdebug.ini /etc/php7/conf.d/xdebug.ini
+COPY static/php/error_reporting.ini /etc/php7/conf.d/error_reporting.ini
+RUN echo "zend_extension=/usr/lib/php7/modules/xdebug.so" >> /etc/php7/php.ini
+
+COPY static/php/php.ini /etc/zzz_custom.ini
+# configure cron
+COPY static/crontab.txt /var/crontab.txt
+# Configure supervisord
+COPY static/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+COPY static/entrypoint.sh   /
+
+WORKDIR /var/www/html
+COPY  --chown=nobody --from=build /app  pathfinder
+
+RUN chmod 0766 pathfinder/logs pathfinder/tmp/ && rm index.php && touch /etc/nginx/.setup_pass &&  chmod +x /entrypoint.sh 
+COPY static/pathfinder/routes.ini /var/www/html/pathfinder/app/
+COPY static/pathfinder/environment.ini /var/www/html/pathfinder/app/templateEnvironment.ini
+
+WORKDIR /var/www/html
+EXPOSE 80
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]