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Cloud Lab

Cloud Lab is a Docker based online lab center, it integrates many popular computer science courses and provides a Docker based experiment environment as-is.

Cloud Lab is open source with no warranty – use at your own risk.

Quickstart

Install docker

Cload Lab is docker based, please make sure docker environment is installed with Docker CE, Docker CE support Mac, Windows, Ubuntu, Debian, Fedora, CentOS, Azure and AWS, we have tested Cloud Lab with Docker CE in Ubuntu and Mac.

The old install method for Windows and Mac OSX is Docker Toolbox.

Configure docker

In order to run docker without password, please make sure your user is added in the docker group:

$ sudo usermod -aG docker $USER

In order to speedup docker images downloading, please configure a local docker mirror in /etc/default/docker, for example:

$ grep registry-mirror /etc/default/docker
DOCKER_OPTS="$DOCKER_OPTS --registry-mirror=https://docker.mirrors.ustc.edu.cn"
$ service docker restart

In order to avoid network ip address conflict, please try following changes and restart docker:

$ grep bip /etc/default/docker
DOCKER_OPTS="$DOCKER_OPTS --bip=10.66.0.10/16"
$ service docker restart

If the above changes not work, try something as following:

$ grep dockerd /lib/systemd/system/docker.service
ExecStart=/usr/bin/dockerd -H fd:// --bip=10.66.0.10/16 --registry-mirror=https://docker.mirrors.ustc.edu.cn
$ service docker restart

If installed via Docker Toolbox, to access the Lab page, we must get and use the eth1 ip address, just replace 'localhost' with this ip in the Lab page url:

$ ifconfig eth1 | grep 'inet addr' | tr -s ' ' | tr ':' ' ' | cut -d' ' -f4
192.168.99.100

If the Linux system is installed on Virtualbox by ourselves, to access the Lab page outside, we must add the eth1 network device at first via setting: 'Network -> Adapter2 -> Host-only Adapter'.

Choose a working directory

If installed via Docker Toolbox, please enter into the /mnt/sda1 directory of the default system on Virtualbox, otherwise, after poweroff, the data will be lost for the default /root directory is only mounted in DRAM.

$ cd /mnt/sda1

For Linux or Mac OSX, please simply choose one directory in ~/Downloads or ~/Documents.

$ cd ~/Documents

Download cloud-lab

$ git clone https://github.com/tinyclub/cloud-lab.git

Choose a Lab

$ tools/docker/choose

Current Lab is: linux-lab

Available Labs:

     1	cs630-qemu-lab
     2	linux-0.11-lab
     3	linux-lab
     4	markdown-lab
     5	qing-lab
     6	tinylab.org

Choose the lab number: 2
     2	linux-0.11-lab


Download the lab...

Run the Lab

$ tools/docker/run

Remove the Lab

$ tools/docker/rm

Stop the Lab

$ tools/docker/stop

Start the Lab

$ tools/docker/start

Update everything

$ tools/docker/update

Autostart everything

$ tools/docker/autostart

Run as root without password

If get syntax error under /etc/sudoers*, please use pkexec visudo to fix up it.

$ sudo -s
$ echo "$SUDO_USER ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/$SUDO_USER