adding current Dockerfile

Dockerfile

@@ -0,0 +1,10 @@
+FROM debian:latest
+
+RUN apt-get update && apt-get install -y curl wget gnupg2
+
+RUN curl https://raw.githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploit-framework-wrappers/msfupdate.erb > msfinstall && \
+	chmod +x ./msfinstall &&\
+	./msfinstall && \
+	rm ./msfinstall
+
+RUN useradd nroot && usermod --shell /bin/bash nroot