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Overview

Welcome to TrinityX!

TrinityX is the new generation of ClusterVision's open-source HPC platform. It is designed from the ground up to provide all services required in a modern HPC system, and to allow full customization of the installation. Also it includes optional modules for specific needs, such as an OpenStack cloud and Docker on the compute nodes.

The full documentation is available in the doc subdirectory. See the instructions how to build it below.

Quick start

In standard configuration TrinityX provides the following services to the cluster:

It will also set up:

  • NFS-shared home and application directories
  • environment modules
  • rsyslog
  • and more

Steps to install TrinityX

  1. Install CentOS Minimal on your controller(s)

  2. Configure network interfaces that will be used in the cluster, e.g public, provisioning and MPI networks

  3. Configure passwordless authentication to the controller itself or/and for both controllers in the HA case

  4. Setup luna repository:

    # curl https://updates.clustervision.com/luna/1.2/centos/luna-1.2.repo > /etc/yum.repos.d/luna-1.2.repo
    
  5. Install git, ansible and luna-ansible:

    # yum install git ansible luna-ansible
    
  6. Clone TrinityX repository into your working directory and go to the site directory:

    # git clone http://github.com/clustervision/trinityx
    # cd trinityX/site
    
  7. Based on whether you're installing a single-controller or a high-availability (HA) setup, you might want to update the configuration files:

    • group_vars/all

    Note: In the case of an HA setup you will most probably need to change the default name of the shared block device set by shared_fs_device.

    You might also want to check if the default firewall parameters apply to your situation in the firewalld role in controller.yml:

    firewalld_public_interfaces:
      - eth2
    firewalld_trusted_interfaces:
      - eth0
      - eth1
    
  8. Install OndrejHome.pcs-modules-2 from the ansible galaxy:

    # ansible-galaxy install OndrejHome.pcs-modules-2
    
  9. Configure hosts file to allow ansible to address controllers.

    Example for non-HA setup:

    [controllers]
    controller ansible_host=10.141.255.254
    

    Example for HA setup:

    [controllers]
    controller1 ansible_host=10.141.255.254
    controller2 ansible_host=10.141.255.253
    
  10. Start TrinityX installation:

    # ansible-playbook controller.yml
    

    Note: If errors are encoutered during the installation process, analyze the error(s) in the output and try to fix it then re-run the installer.

    Note: By default, the installation logs will be available at /var/log/trinity.log

  11. Create a default OS image:

    # ansible-playbook compute.yml
    

Now you have your controller(s) installed and the default OS image created!

Customizing your installation

Now, if you want to tailor TrinityX to your needs, you can modify the ansible playbooks and variable files.

Descriptions to configuration options are given inside controller.yml and group_vars/*. Options that might be changed include:

  • Controller's hostnames and IP addresses
  • Shared storage backing device
  • DHCP dynamic range
  • Firewall settings

You can also choose which components to exclude from the installation by modifying the controller.yml playbook.

Documentation

To build the full set of the documentation included with TrinityX:

  1. Install git:

    # yum install git
    
  2. Clone TrinityX repository into your working directory and go to the directory containing the documentation:

    # git clone http://github.com/clustervision/trinityx
    # cd trinityX/doc
    
  3. Install pip, e.g. from EPEL repository:

    # yum install python34-pip.noarch
    
  4. Install sphinx and Rinohtype:

    # pip3.4 install sphinx Rinohtype
    
  1. Build the PDF version of the TrinityX guides:

    # sphinx-build -b rinoh . _build/
    

If everything goes well, the documentation will be saved as _build/TrinityX.pdf

Contributing

To contribute to TrinityX:

  1. Get familiar with our code guidelines
  2. Clone TrinityX repository
  3. Commit your changes in your repository and create a pull request to the dev branch in ours.

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