===== VM Changelog =====

==== 202122.3 ====

**Date**: May 12, 2022

Fixed APT sources (did not include the focal-updates sources):

    deb http://us.archive.ubuntu.com/ubuntu/ focal main universe restricted multiverse
    deb http://security.ubuntu.com/ubuntu/ focal-security main restricted multiverse universe
    deb http://us.archive.ubuntu.com/ubuntu/ focal-updates main restricted multiverse universe
    deb http://us.archive.ubuntu.com/ubuntu/ focal-backports main restricted multiverse universe

Updated software:

  sudo apt update
  sudo apt upgrade
  sudo apt autoremove

Installed latest VirtualBox Guest Additions (VirtualBox "Devices" menu → Insert Guest Additions CD image)


==== 202122.2 ====

**Date**: January 29, 2022

Updated existing software:

  sudo apt update
  sudo apt upgrade
  sudo apt autoremove

Installed mininet:

  cd /tmp
  wget https://github.com/mininet/mininet/archive/refs/tags/2.3.0.tar.gz
  tar xvzf 2.3.0.tar.gz
  mv mininet-2.3.0/ mininet
  sudo PYTHON=python3 mininet/util/install.sh -nfv

Installed Ryu:

  sudo apt install libssl-dev libxml2-dev libxslt1-dev
  cd /opt
  sudo git clone https://github.com/faucetsdn/ryu.git
  cd ryu
  sudo pip3 install .

==== 202122.1 ====

**Date**: January 7, 2022

This is a new Ubuntu 20.04 image built from scratch. The initial image was created following [[https://ubuntu.com/tutorials/how-to-run-ubuntu-desktop-on-a-virtual-machine-using-virtualbox|this Ubuntu tutorial]]. After that, we performed the setup described below.

Updated sources and packages:

  sudo apt update
  sudo apt upgrade

Disable unattended upgrades:

  sudo apt-get remove unattended-upgrades

Additionally, manually disabled automatic check for upgrades (prevents Ubuntu from asking students if they want to upgrade any software)

Installed VirtualBox Guest Additions (VirtualBox "Devices" menu → Insert Guest Additions CD image)

Installed most of the software that was present in the 16.04 version of the VM image:

  sudo apt install -y git mc openssh-server texinfo qemu texlive graphviz libgraphviz-dev libffi7 libffi-dev traceroute cmake libyaml-0-2 libyaml-dev libtool libncurses5-dev libncursesw5-dev clang clang-format protobuf-compiler protobuf-c-compiler libprotoc-dev libprotobuf-c-dev python3-pip python3-dev 
  sudo -H pip3 install pytest-json pytest-html pandas numpy scipy matplotlib jupyter ipython emoji tabulate twitter cairocffi pygraphviz networkx pydot_ng pydot sklearn pylint setuptools pip click pyyaml pycryptodome 

Installed Visual Studio Code:

  sudo snap install code --classic

The Criterion test framework doesn't have an 20.04 package, but the 18.04 one appears to work fine:

  wget http://ppa.launchpad.net/snaipewastaken/ppa/ubuntu/pool/main/c/criterion/criterion_2.3.2-6-ubuntu1~bionic1_amd64.deb
  wget http://ppa.launchpad.net/snaipewastaken/ppa/ubuntu/pool/main/c/criterion/criterion-dev_2.3.2-6-ubuntu1~bionic1_amd64.deb
  sudo dpkg -i criterion_2.3.2-6-ubuntu1~bionic1_amd64.deb
  sudo dpkg -i criterion-dev_2.3.2-6-ubuntu1~bionic1_amd64.deb

Added the [[vm:clean-vm.sh|clean-vm.sh]] script.

==== 201920.3 ====

**Date**: April 16, 2020

Updated existing software:

  sudo apt update
  sudo apt dist-upgrade -u
  sudo apt autoremove
  sudo snap refresh
  update-cs-software

Installed Visual Studio Code:

  sudo snap install code --classic

Installed latest version of CMake:

  wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
  sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ xenial main'
  sudo apt-get update
  sudo apt-get install -y cmake

Installed missing libraries needed by CMSC 22000:

  sudo apt-get install -y libyaml-0-2 libyaml-dev libncurses5-dev libncursesw5-dev

Updated VM cleaning script (the latest version of this file can now be found [[vm:clean-vm.sh|on the wiki]])

==== 201920.2 ====

**Date**: September 24, 2019

Updated pyyaml and installed pycryptodome:

  sudo -H pip3 install pyyaml pycryptodome --upgrade

Removed leftover ''hello.py'' file in the ''student'' home directory.

==== 201920.1 ====

**Date**: September 24, 2019

Updated click and the CS setup script:

  sudo -H pip3 install click uchicago_cs_setup_script --upgrade

==== 201920.1-rc1 ====

**Date**: September 23, 2019

Updated existing software:

  sudo apt update
  sudo apt dist-upgrade -u
  sudo apt autoremove

Updated VirtualBox Guest Additions to version 5.2.18 (VirtualBox "Devices" menu -> Insert Guest Additions CD image)

Updated ''pip'' and ''setuptools'':

  sudo -H pip3 install setuptools pip --upgrade

Updated chisubmit:

  sudo -H pip3 install chisubmit --upgrade

Updated software used in CMSC 12100:

  sudo -H pip3 install --upgrade pandas numpy scipy matplotlib jupyter ipython emoji tabulate twitter cairocffi pygraphviz networkx pydot_ng pydot sklearn pylint


==== 201819.2 ====

**Date**: January 5, 2019

Remove imagemagick package, which usually causes issues in CS 121 (because of its ''import'' command):

    sudo apt remove imagemagick

Install CMake and traceroute:

    sudo apt install cmake traceroute

Install clang:

    wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
    sudo apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-7 main"
    sudo apt update
    sudo apt install clang-7 clang-format-7 clang-tidy-7

==== 201819.1 ====

**Date**: September 26, 2018

Upgrade the UChicago CS Setup Script:

  sudo -H pip3 install uchicago-cs-setup-script --upgrade

Removed user-local Python packages and executables that seemed to have been installed a long time ago, and which would likely conflict with system-wide packages.

  rm -rf .local/lib/python3.5/
  rm -rf .local/bin/

==== 201819.1-rc2 ====

**Date**: September 24, 2018

Removed Sublime Text 2:

  rm -rf /home/student/Software/
  rm -rf /home/student/bin/
  rm -rf /home/student/.config/sublime-text-2
  # Removed subl alias from .bashrc_cs

Added Sublime Text 3:

  wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -
  sudo apt-get install apt-transport-https
  echo "deb https://download.sublimetext.com/ apt/stable/" | sudo tee /etc/apt/sources.list.d/sublime-text.list
  sudo apt-get update
  sudo apt-get install sublime-text
  # Add 'rm -rf ~student/.config/sublime-text-3' to /root/clean-vm.sh

Added PyCharm:

  sudo snap install pycharm-community --classic

Installed pylint:

  sudo pip3 install pylint

Added the following to ''clean-vm.sh'' to clear caches and reduce VM image size:

  echo "Clearing caches..."
  apt clean
  rm -rf ~student/.cache
  rm -rf /root/.cache




==== 201819.1-rc1 ====

**Date**: September 19, 2018

Added xenial-updates package sources:

  deb http://us.archive.ubuntu.com/ubuntu xenial-updates main restricted
  deb http://us.archive.ubuntu.com/ubuntu xenial-updates universe
  deb http://us.archive.ubuntu.com/ubuntu xenial-updates multiverse

Updated existing software:

  sudo apt update
  sudo apt dist-upgrade -u
  sudo apt autoremove

Updated VirtualBox Guest Additions to version 5.2.18 (VirtualBox "Devices" menu -> Insert Guest Additions CS)

Updated ''pip'' and ''setuptools'':

  sudo -H pip2 install setuptools pip --upgrade
  sudo -H pip3 install setuptools pip --upgrade

Updated chisubmit to 2.0:

  sudo -H pip2 uninstall chisubmit
  sudo -H pip3 install chisubmit

Updated ''/usr/local/bin/update-cs-software'' to update chisubmit with pip3 instead of pip2

Updated software used in CMSC 12100:

  sudo -H pip3 install --upgrade pandas numpy matplotlib jupyter
  sudo -H pip3 install --upgrade emoji tabulate twitter

Added packages needed by CMSC 12100:

  sudo apt install graphviz graphviz-dev libffi6 libffi-dev
  sudo -H pip3 install cairocffi pygraphviz networkx pydot_ng pydot sklearn

==== 201718.3 ====

**Date**: January 2, 2018

Updated existing software:

  sudo apt update
  sudo apt dist-upgrade -u
  sudo apt autoremove

Added Python packages needed by CMSC 23300:

  sudo -H pip3 install pytest-json pytest-html
  sudo -H pip2 install ipaddress --upgrade

Added packages needed by CMSC 23300:

  sudo apt install libtool protobuf-compiler protobuf-c-compiler libprotoc-dev mininet
  
  sudo add-apt-repository ppa:snaipewastaken/ppa
  sudo apt-get update
  sudo apt-get install criterion-dev

==== 201718.2 ====

**Date**: September 20, 2017

Updated the Guest OS tools (select Devices -> "Install Guest Additions CD image"; run)

Disabled automatic updates (Settings -> Software & Updates -> Updates; unchecked "updates from..." boxes; set "Automatically check for updates" to Never; set "Notify me of a new Ubuntu version" to Never)

Added multiverse and universe sources to apt

==== 201718.1 ====

**Date**: September 18, 2017

No changes. Version update only to indicate this is no longer a release candidate.

==== 201718.1-rc3 ====

**Date**: August 31, 2017

Updated existing software:

  sudo apt-get update
  sudo apt-get dist-upgrade -u

Added Python packages needed by CMSC 12100:

  sudo -H pip3 install emoji pandas tabulate twitter

Added alias to ''~student/.bashrc_cs''

  alias subl=sublime_text

Modified ''/root/clean-vm.sh'' to remove the Sublime Text history:

  rm ~student/.config/sublime-text-2/Settings/Session.sublime_session

==== 201718.1-rc2 ====

**Date**: August 25, 2017

Changed default Java version to 1.8.0_131 (instead of Java 9)

Updated to chisubmit 1.3.0 (ran ''update-cs-software'')

Installed additional packages:

  apt-get install mono-runtime mono-mcs php7.0-cli

Installed Pintos following [[https://github.com/uchicago-cs/pintos/blob/9ba4227e7442acdb011bf4c5609222059adca121/uchicago/uchicago-vm-setup.sh|these instructions]].

Modified ''/root/clean-vm.sh'' to do additional cleanup, and to add mit.cs.uchicago.edu to trusted SSH hosts:

  rm -rf /tmp/*
  
  rm -rf ~student/.vim
  rm -rf ~student/.emacs.d
  rm -rf ~student/.gitconfig
  
  ssh-keyscan -H mit.cs.uchicago.edu > ~student/.ssh/known_hosts
  ssh-keyscan -H $(dig +short mit.cs.uchicago.edu) >> ~student/.ssh/known_hosts
  chown -R student.student ~student/.ssh

  
==== 201718.1-rc1 ====

**Date**: August 23, 2017

Changed hostname to "cs-vm" (updated /etc/hostname and /etc/hosts)

Manually updated applications on Ubuntu launcher

Disabled unattended upgrades:

  sudo apt-get remove unattended-upgrades

Manually disabled automatic check for upgrades (prevents Ubuntu from asking students if they want to upgrade any software)

Updated existing software:

  sudo apt-get update
  sudo apt-get dist-upgrade -u
  sudo apt-get autoremove

Added new packages:

  sudo apt-get install eclipse eclipse-cdt mc texinfo qemu texlive

Updated pip:

  sudo -H pip2 install pip --upgrade
  sudo -H pip3 install pip --upgrade

Installed chisubmit and uchicagocs-setup-script:

  sudo -H pip2 install chisubmit --upgrade
  sudo -H pip3 install uchicago-cs-setup-script ipython --upgrade

Added .chisubmitconf file in /home/student:

  api-url: https://chisubmit-backend.cs.uchicago.edu/api/v1/

Updated certificates:

  wget http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt -O - | sudo openssl x509 -inform DER -outform PEM -out /usr/local/share/ca-certificates/USERTrustRSAAddTrustCA.crt
  wget http://crt.incommon-rsa.org/InCommonRSAServerCA_2.crt -O - | sudo openssl x509 -inform DER -outform PEM -out /usr/local/share/ca-certificates/InCommonRSAServerCA_2.crt
  sudo update-ca-certificates

Added /usr/local/bin/update-cs-software:

  #!/bin/bash
  
  sudo -H pip2 install chisubmit --upgrade
  sudo -H pip3 install uchicago-cs-setup-script --upgrade
  
  sudo chmod a+x /usr/local/bin/update-cs-software

Removed root-owned files in /home/student

Added /root/clean-vm.sh to clean VM before producing a golden image:

  #!/bin/bash
  
  echo "Cleaning logs..."
  # Stop logging service
  service rsyslog stop
  # Clear logs
  logrotate -f /etc/logrotate.conf
  rm /var/log/*.gz /var/log/*.1
    
  echo "Cleaning /var/tmp..."
  rm -rf /var/tmp/*
    
  echo "Removing SSH keys..."
  rm -rf ~student/.ssh
  rm -rf ~root/.ssh
  
  echo "Removing configuration files and histories..."
  rm -rf ~root/.bash_history
  rm -rf ~student/.bash_history
  rm -rf ~student/.mozilla/firefox
  rm -rf ~student/.ipython
  rm -rf ~student/.chisubmit

==== 201718.0 =====

This was a base Ubuntu 16.04 image created by Techstaff.