refactor: move proxy to monorepo

backend/proxy/Dockerfile

@@ -0,0 +1,18 @@
+FROM registry.gitlab.com/openstapps/projectmanagement/node
+
+USER root
+
+RUN apk update && \
+    apk upgrade && \
+    apk add openssl && \
+    apk add nginx && \
+    apk add nginx-mod-http-vts && \
+    rm -rf /var/cache/apk/*
+
+ADD . /app
+
+WORKDIR /app
+
+RUN mv /app/nginx.conf /etc/nginx/nginx.conf
+
+CMD ["sh", "./bin/run-docker.sh"]