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Notes on ChromeOS + CoCalc

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Installation

  1. Install (Crostini) Linux support -- search for Linux in settings and enable.

  2. In the Linux terminal, type

    sudo su apt-get update && apt-get upgrade && apt-get install tmux dpkg-dev
  3. Install Docker as here:

    sudo su apt-get install -y \ apt-transport-https \ ca-certificates \ curl \ gnupg2 \ software-properties-common && \ curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - && \ apt-key fingerprint 0EBFCD88 && \ add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/debian \ $(lsb_release -cs) \ stable" && \ apt-get update && apt-get install -y docker-ce
  4. Install CoCalc-docker:

    sudo docker run --name=cocalc -d -v /cocalc:/projects -p 443:443 -p 80:80 sagemathinc/cocalc

    Type /sbin/ifconfig eth0|grep inet in the terminal, and use whatever ip address is listed there -- e.g., for me it was https://100.115.92.198/

  5. Install Node:

    curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash - && sudo apt-get install -y nodejs
  6. Other useful stuff:

    sudo apt-get install inkscape gimp

Usage

Stopping Linux

Type ctrl+shift+t in Chrome, then type

vmc stop termina

Alternatively, find the "Terminal" icon in the app search thing and right click, then "Shut down linux (beta)."

Configure Cocalc (docker)

  1. Visit https://penguin.linux.test and make an account (click through security warning).

  2. Make the user you just made an admin:

    wstein@penguin:~$ sudo docker exec -it cocalc bash root@802a1e26fae6:/# cd /cocalc/src/ root@802a1e26fae6:/cocalc/src# coffee coffee> require './c.coffee' coffee> db.make_user_admin(email_address:'[email protected]', cb:done())
  3. Make a dev project for local development:

    • Create a new project called "dev".

    • Create a terminal in it and open.

    • Make an ssh key in it: ssh-keygen -t ed25519 and copy it to your github account, so you can clone (and push) the cocalc code properly:

      ~$ cat .ssh/id_ed25519.pub ssh-ed25519 AAAAC3NzaC1lZDI1NTE...
    • Clone the cocalc repo:

      git clone git@github.com:sagemathinc/cocalc.git
    • (Alternative:) If you don't want to mess with ssh keys above, do

      git clone https://github.com/sagemathinc/cocalc.git
    • Build CoCalc (this should take around 5 minutes):

      $ cd ~/cocalc/src/; time npm run make
    • Add all this to the bottom of ~/.bashrc.

      # Cocalc dev setup export PATH=/usr/lib/postgresql/10/bin:$PATH

export CUR=pwd cd HOME/cocalc/src.smc−envcd"HOME/cocalc/src . smc-env cd "CUR" ```

* Exit and restart your shell. Then do the following from cocalc/src (in various tmux shells): ``` dev/project/start_postgres.py ... dev/project/start_hub.py ... ./w ``` * Type `dev/project/info.py` and get a URL like `https://cocalc.com/[project_id]/port/34817/app/`. Change `cocalc.com` to `penguin.linux.test` and visit that URL.