This Ansible role is for configuring the base operating system useful for running Galaxy.

Requirements

The role has been developed and tested on Ubuntu 14.04. It requires sudo access.

Dependencies

None

Role variables

All of the listed variabls are stored in defaults/main.yml. Individual variables can be set or overridden by setting them directly in a playbook for this role (see an example below for galaxy_user_uid). Alternatively, they can be set by creating group_vars directory in the root directory of the playbook used to execute this role and placing a file with the variables there. Note that the name of this file must match the value of hosts setting in the corresponding playbook (e.g., os-builder for the sample playbook provided below).

• galaxy_user_name: (default: galaxy) system username to be used for Galaxy
• galaxy_user_uid: (default: 1001) UID for the galaxy_user_name

Control flow variables

The following variables can be set to either yes or no to indicate if the given part of the role should be executed:

• install_packages: (default: yes) install system level packages
• configure_docker: (default: yes) configure Docker as part of install_packages
• apt_package_state: (default: latest) set to present to not force update of existing installed packages.
• add_system_users: (default: yes) configure system level users

Example playbook

To use the role, it is create a hosts file that contains access information for the target machine, for example:

[os-builder]
130.56.250.204 ansible_ssh_private_key_file=key.pem ansible_ssh_user=ubuntu

Next, set any variables as desired and place the role into a playbook file (e.g., playbook.yml). This playbook assumes the role has been placed into roles/galaxyprojectdotorg.galaxy-os directory:

- hosts: os-builder
  sudo: yes
  roles:
    - role: galaxyprojectdotorg.galaxy-os
      galaxy_user_uid: 1055

Finally, run the playbook with:

$ ansible-playbook playbook.yml -i hosts