move Dockerfile to root

docker/Dockerfile

@@ -1,57 +0,0 @@
-FROM ruby:2.4.1-alpine
-MAINTAINER Rapid7
-
-ARG BUNDLER_ARGS="--jobs=8 --without development test coverage"
-ENV APP_HOME /usr/src/metasploit-framework/
-ENV MSF_USER msf
-ENV NMAP_PRIVILEGED=""
-WORKDIR $APP_HOME
-
-COPY Gemfile* m* Rakefile $APP_HOME
-COPY lib $APP_HOME/lib
-
-RUN apk update && \
-    apk add \
-      sqlite-libs \
-      nmap \
-      nmap-scripts \
-      nmap-nselibs \
-      postgresql-libs \
-      ncurses \
-      libcap \
-    && apk add --virtual .ruby-builddeps \
-      autoconf \
-      bison \
-      build-base \
-      ruby-dev \
-      openssl-dev \
-      readline-dev \
-      sqlite-dev \
-      postgresql-dev \
-      libpcap-dev \
-      libxml2-dev \
-      libxslt-dev \
-      yaml-dev \
-      zlib-dev \
-      ncurses-dev \
-      git \
-    && echo "gem: --no-ri --no-rdoc" > /etc/gemrc \
-    && gem install bundler \
-    && bundle install --system $BUNDLER_ARGS \
-    && apk del .ruby-builddeps \
-    && rm -rf /var/cache/apk/*
-
-# fix for robots gem not readable (known bug)
-# https://github.com/rapid7/metasploit-framework/issues/6068
-RUN chmod o+r /usr/local/bundle/gems/robots-*/lib/robots.rb
-
-RUN adduser -g msfconsole -D $MSF_USER
-
-RUN /usr/sbin/setcap cap_net_raw,cap_net_bind_service=+eip $(which ruby)
-RUN /usr/sbin/setcap cap_net_raw,cap_net_bind_service=+eip /usr/bin/nmap
-
-USER $MSF_USER
-
-ADD ./ $APP_HOME
-
-CMD ["./msfconsole", "-r", "docker/msfconsole.rc"]