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Release

Ansible playbook for AiiDAlab Server

This is an ansible playbook for setting up a multi-user AiiDAlab either on a physical server or on a virtual machine (e.g. on Amazon Web Services or OpenStack).

Prerequisites

Server

  • A server running Ubuntu 18.04 with open ports 22 (ssh), 80 (http) and 443 (https).
  • SSH access to the server via passwordless private SSH key. The user must have sudo rights.

For instructions on how to set up cloud services, see here.

Your machine

Instructions for the terminal:

git clone https://github.com/aiidalab/ansible-playbook-aiidalab-server.git
cd ansible-playbook-aiidalab
pip install -r requirements.txt
ansible-galaxy install -r requirements.yml

Installation

  1. Edit the hosts file to provide the IP address and SSH key for your server
  2. Execute ansible-playbook playbook.yml --ask-become-pass

Once finished, open the IP address of your server in a web browser.

Warning: To keep things simple, this uses the FirstUseAuthenticator, which simply creates new JupyterHub users when they enter their username and password. In order to disable the creation of new users, set aiidalab_server_create_users to false in the playbook.yml and run the ansible playbook again.

Modifying the user environment

By default, the playbook will simply pull the docker image for the AiiDAlab accounts from the DockerHub registry.

If you would like to modify the user environment (e.g. to install additional packages), uncomment the aiidalab_server_build_locally: true line in the playbook and run the ansible playbook again.

This will cause the aiidalab.aiidalab_server role to clone the git repository containing the Dockerfile and build the docker image locally from it. You can then update the image by modifying the Dockerfile on the server:

ssh aiidalab  # ssh into your aiida lab server
cd ~/aiidalab-docker-stack
vim Dockerfile  # edit Dockerfile
docker build . -t aiidalab-docker-stack:latest

Once the new image is built, it will be used for new containers (i.e. if you already have a container running, use the JupyterHub control panel to stop your server and start it again).

Connecting to authentication services

The FirstUseAuthenticator can be useful to get started but for production you may want to connect to an OAuth2 server for authentication. See the OAuthenticator for instructions on how to connect to external authentication services.

Cheatsheet

  • Run only aiidalab_server role: ansible-playbook playbook.yml --ask-become-pass --tags aiidalab_server --skip-tags dependencies

On the server:

  • List running containers: docker ps
  • List resource usage: docker stats
  • View log of a container: docker container logs <container_id>
  • View JupyterHub log: tail -f /var/log/syslog | grep jupyterhub
  • Restart JupyterHub: sudo service jupyterhub restart
  • Restart Apache: sudo apachectl graceful

Acknowledgements

This work is supported by the MARVEL National Centre for Competence in Research and the MaX European centre of excellence