Creating MongoDB image error from Docker official tutorial - docker

Question

Here is the official tutorial to create mongoDB img.
I followed exactly the tutorial and generated the following Dockerfile
# https://docs.docker.com/engine/examples/mongodb/#creating-a-dockerfile-for-mongodb
# Dockerizing MongoDB: Dockerfile for building MongoDB images
# Based on ubuntu:latest, installs MongoDB following the instructions from:
# http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
# Format: FROM repository[:version]
FROM ubuntu:latest
# Installation:
# Import MongoDB public GPG key AND create a MongoDB list file
RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
RUN apt-get install -y --no-install-recommends software-properties-common
RUN echo "deb http://repo.mongodb.org/apt/ubuntu $(cat /etc/lsb-release | grep DISTRIB_CODENAME | cut -d= -f2)/mongodb-org/3.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-3.2.list
# Update apt-get sources AND install MongoDB
RUN apt-get update && apt-get install -y mongodb-org
# MongoDB requires a data directory. Let’s create it as the final step of our installation instructions.
# Create the MongoDB data directory
RUN mkdir -p /data/db
# Expose port 27017 from the container to the host
EXPOSE 27017
# Set usr/bin/mongod as the dockerized entry-point application
ENTRYPOINT ["/usr/bin/mongod"]
But when I execute
$ docker build --tag my/repo .
I got the following error:
What is going on? Why it fails? How to fix it?
EDIT:
After adjust the command order, my final script is this:
# Format: FROM repository[:version]
FROM ubuntu:latest
# Update apt-get sources AND install MongoDB
RUN apt-get update
# Installation:
# Import MongoDB public GPG key AND create a MongoDB list file
RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
RUN apt-get install -y --no-install-recommends software-properties-common
# RUN echo "deb http://repo.mongodb.org/apt/ubuntu $(cat /etc/lsb-release | grep DISTRIB_CODENAME | cut -d= -f2)/mongodb-org/3.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-3.2.list
RUN echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
RUN apt-get install -y mongodb-org
# MongoDB requires a data directory. Let’s create it as the final step of our installation instructions.
# Create the MongoDB data directory
RUN mkdir -p /data/db
# Expose port 27017 from the container to the host
EXPOSE 27017
# Set usr/bin/mongod as the dockerized entry-point application
ENTRYPOINT ["/usr/bin/mongod"]
Then I got the following error:
Next, then I added "RUN apt-get install sudo", then I got the following error:
3 strikes down, I am not confident this whole thing will work. Here is my final Dockerfile.
# https://docs.docker.com/engine/examples/mongodb/#creating-a-dockerfile-for-mongodb
# Dockerizing MongoDB: Dockerfile for building MongoDB images
# Based on ubuntu:latest, installs MongoDB following the instructions from:
# http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
# Format: FROM repository[:version]
FROM ubuntu:latest
# Update apt-get sources AND install MongoDB
RUN apt-get update
# Installation:
# Import MongoDB public GPG key AND create a MongoDB list file
RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
RUN apt-get install -y --no-install-recommends software-properties-common
RUN apt-get install sudo
# RUN echo "deb http://repo.mongodb.org/apt/ubuntu $(cat /etc/lsb-release | grep DISTRIB_CODENAME | cut -d= -f2)/mongodb-org/3.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-3.2.list
RUN echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
RUN apt-get install -y mongodb-org
# MongoDB requires a data directory. Let’s create it as the final step of our installation instructions.
# Create the MongoDB data directory
RUN mkdir -p /data/db
# Expose port 27017 from the container to the host
EXPOSE 27017
# Set usr/bin/mongod as the dockerized entry-point application
ENTRYPOINT ["/usr/bin/mongod"]
If you can make it work, please paste your Dockerfile and I'd love to learn what is wrong in my script. I followed the tutorial and it doesn't work.

Answer 1

A quick google search for your exact error message found this.
This is an error from apt saying it can't find the software-properties-common package in its repositories. When a package change be found, it usually means apt needs updating.
You are running apt-get update but you're running it after the update line.
RUN apt-get install -y --no-install-recommends software-properties-common
...
RUN apt-get update && apt-get install -y mongodb-org
Instead, run it first
RUN apt-get update
RUN apt-get install -y --no-install-recommends software-properties-common
...
RUN apt-get install -y mongodb-org
Update: Your update says you're now getting an error when installing the mongodb package. This is because you've loaded a deb package file and need to update apt yet again so that it knows about it. At this point, the easiest thing to do is just prefix any apt-get commands that complain about not finding packages with an update.
RUN apt-get update && apt-get install -y --no-install-recommends software-properties-common
...
RUN apt-get update && apt-get install -y mongodb-org