anchor.diff:  ENV MONGO_PACKAGE mongodb-org
   
   # https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu/
  -# RUN echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
   RUN echo "deb http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/$MONGO_MAJOR multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-$MONGO_MAJOR.list
  -# RUN echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
   
   RUN set -x \
   	&& apt-get update \
   	&& apt-get install -y \
   ## from mongodb repo production version 3.6
  -##  --allow-unauthenticated\
  +##--allow-unauthenticated\
       mongodb-org \
   #		${MONGO_PACKAGE}=$MONGO_VERSION \
   #		${MONGO_PACKAGE}-server=$MONGO_VERSION \
  
positive.code: SHELL ["/bin/bash", "-c"]
  RUN set -ex \
    && for key in \
       0C49F3730359A14518585931BC711F9BA15703C6 \
       2930ADAE8CAF5059EE73BB4B58712A2291FA4AD5 \
       9DA31620334BD75D9DCB49F368818C72E52529D4 \
    ; do \
      gpg2 --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys $key; \
      gpg2 --armor --export $key | apt-key add - ; \
  
negative.code: #   gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key" ; \
  #   gpg --keyserver pgp.mit.edu --recv-keys "$key" || \
  #   gpg --keyserver keyserver.pgp.com --recv-keys "$key" || \
  
  ENV MONGO_MAJOR 3.6
  ENV MONGO_VERSION 3.6.4
  