weblabdeusto-playbooks

Ansible playbooks to install and manage WebLab-Deusto.

Requisites

The playbook depends on these other playbooks:

ansible-galaxy install brad.virtualenv

Usage examples

Using vagrant

cd vagrant/[subfolder]
vagrant up

Please, check vagrant/Vagrantfile for more information.

Using only ansible

Assumption: you have a machine equivalent to the one created by vagrant in the previous step (see vagrant/Vagrantfile) in the IP defined by the simple file.

# Executing the whole playbook using the "simple" inventory with user "vagrant", etc.
ansible-playbook -vvvv --user=vagrant --private-key=[private-key-location] --limit='local' ---inventory-file=simple main.yml

# To execute only Weblab related steps
ansible-playbook -vvvv -u vagrant --private-key=[private-key-location] -l 'local' -i simple main.yml --tags weblab

I will try to adhere to Ansible's best practices in the project organization. Therefore, these usage patterns should be applicable once the playbook is finished.

Installation in one machine

• Web server: Apache

• Persistence: MySQL

• Schedulling: Redis

  ansible-playbook -vvvv -u vagrant --private-key=[private-key-location] -l 'local' -i simple main.yml

Installation in three machines (one per role)

• Web server: Apache

• Persistence: MySQL

• Schedulling: Redis

  ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i one_role_one_machine main.yml

Or if you prefer to do it step by step...

ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i one_role_one_machine dbservers.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i one_role_one_machine schedulingservers.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i one_role_one_machine webservers.yml

Installation balancing through two web servers

• Web server: Apache
• Persistence: MySQL
• Schedulling: Redis

Note that this installation uses an additional role (installer) which compiles WebLab and shares the installation folders with the web instances.

ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer main.yml

Or if you prefer to do it step by step...

ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer dbservers.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer schedulingservers.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer installer.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer webservers.yml
ansible-playbook -vvvv --private-key=[private-key-location] -u vagrant -l 'local' -i with_load_balancer balancer.yml

Notes

If you are going to fork this and parametrize it with your own installation details, please make sure that either you don't version the resulting file or you use vault for the passwords.

For example, the file with the "global" variables (group_vars/local) stores a default database password.