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ansible-samvera

Prototype Configuration Management Scripts for Samvera based servers

This repository provides predefined ansible roles to install and configure a typical set of dependencies required to run a Hyrax-based repository, including:

  • Solr
  • Fedora
  • Postgres SQL
  • Apache webserver
  • Ruby
  • FITS
  • FFMpeg and it's dependencies
  • ImageMagick and it's dependencies

Operating systems

Version 1.5 and earlier are compatible with Ubuntu 16.04. After version 1.5 (released 16 July 2019) Ubuntu 18.04 is assumed.

Prerequisites

Tested with Ansible 2.5.4. Please note that ansible is very picky about version numbers. You will get better results if you use pip to install ansible. To upgrade do: pip install ansible==2.5.4

Contributing

Contributions are welcome in the form of issues (including bug reports, use cases) and pull requests.

Origins

This Ansible project was preceeded by ansible-hydra, a project created by Data Curation Experts for the Chemical Heritage Foundation.

Usage

Here is an example playbook that uses these roles (plus a few extra internal-to-dce roles) to build a single box running all the Samvera components:

- hosts: '{{ host }}'
  name: ensure python is installed for ansible
  user: ubuntu
  gather_facts: false
  pre_tasks:
      - name: update apt-get
        raw: sudo apt-get update
      - name: install python for ansible
        raw: sudo apt-get -y install python-simplejson

- hosts: '{{ host }}'
  name: configure server
  user: ubuntu
  gather_facts: true
  vars:
    keys_to_add:
      - https://github.com/user1.keys
      - https://github.com/user2.keys
    db_user: 'db_user'
    db_pass: 'whatever'
  roles:
    - { role: packages }
    - { role: set_timezone, timezone: America/Chicago }
    - { role: set_hostname, hostname: stage-demo }
    - { role: sshd_config }
    - { role: setup_logrotation }
    - { role: clamav }
    - { role: nrpe, nrpe_version: '3.1.1', nagios_plugins_version: '2.2.1' }
    - { role: ruby, ruby_version: '2.4.2', ruby_sha_256: '93b9e75e00b262bc4def6b26b7ae8717efc252c47154abb7392e54357e6c8c9c' }
    - { role: postgres }
    - { role: fedora }
    - { role: solr, solr_version: '6.6.2' }
    - { role: pip }
    - { role: fits, fits_version: '0.8.4' }
    - { role: apache, passenger_ver: '5.1.11'}
    - { role: apache_with_mod_ssl }
    - { role: capistrano_setup }
    - { role: dotenv, hostname: stage-demo }
    - { role: sidekiq }
    - { role: imagemagick, imagemagick_ver: '7.0.7', gs_ver: '9.19', openjpg_ver: '2.1.0', libtiff_ver: '4.0.5', libpng_ver: '1.6.28' }
    - { role: ffmpeg, ffmpeg_version: '3.4' }
    - { role: solr-schema }
    - { role: first_deploy }
    - { role: dce_ssl }
    - { role: force_ssl }
    - { role: restart }
    - { role: splunkuforwarder }

An observation for minimal test installs: these packages install successfully on an AWS ubuntu server with 4 gigabytes of RAM (t3a.medium), but not on one with 1 gigabyte of RAM (a free tier "micro" server).

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