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Whole Tale Terraform Deployment

The following describes the basic process for deploying the Whole Tale services via Terraform.

What you'll need

These are detailed below, but in short:

  • OpenStack project with API access (and the default MTU)
  • Ubuntu 20.04 LTS image
  • Wildcard DNS for your domain
  • Globus Auth client ID and secret
  • rclone binary
  • GoDaddy API integration

OpenStack

The deployment process currently requires access to an OpenStack project with API access and has been tested on NCSA Nebula and XSEDE Jetstream.

Uploading image via glance

If not available on your system, download the alpha channel CoreOS image and add to OpenStack using the glance client:

wget https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img
openstack image create  --container-format bare --disk-format qcow2  --file focal-server-cloudimg-amd64.img "Ubuntu 20.04 LTS"

Globus authentication

The globus_client_id and globus_client_secret can be obtained by setting up a custom application/service via the Globus Auth developer tools.

Setup rclone

The backup process leverages rclone, a simple command line tool to syncrhonize files to a variety of cloud storage services. We currently use Box for the Whole Tale system. This requires creating an rclone.conf file prior to deployment:

wget https://downloads.rclone.org/v1.39/rclone-v1.39-linux-amd64.zip
unzip
rclone --config rclone.conf config

This will walk you through an interactive session. Select the following options:

  • New config (n) named backup
  • Use Box
  • Leave client ID and secret blank
  • Use auto configure (Y)
  • This will open a browser and prompt you to login to Box

This process will generate a config file with the following information:

[backup]
type = box
client_id =
client_secret =
token = {"access_token":"<token>","token_type":"bearer","refresh_token":"<token>","expiry":"<date>"}

Rclone is used by the wholetale/backup container to backup and restore home directories and Mongo using Box.

GoDaddy API Integration

The deployment process uses the GoDaddy API to automatically create DNS entries for non-production deployments and for wildcard certificate generation.

Terraform variables

The deployment process uses Terraform. You'll need to download and install Terraform for your OS. Tthis deployment process currently supports only the OpenStack provider.

The variables.tf file contains variables used during the deployment process. Important variables include:

  • image: Image name for CoreOS in your OpenStack project.
  • flavor: Instance flavor in OpenStack
  • external_gateway: ID for external gateway from OpenStack
  • pool: Name of OpenStack floating IP pool
  • num_workers: Number of Swarm worker nodes
  • domain: Domain name for Whole Tale deployment
  • globus_client_id: Globus auth client ID
  • globus_client_secret: Globus auth client secret
  • godaddy_api_key: GoDaddy API key
  • godaddy_api_secret: GoDaddy API secret

Terraform deployment

With these settings in place, the deployment process is simple:

source openstack-rc.sh
terraform apply

What happens?

  • Creates OpenStack networks and security groups
  • Provisions VM instances and volumes
  • Creates Docker swarm cluster including manager and n workers
  • Creates multiple Docker overlay networks
  • Deploys replicated Mongo database and restores from backup
  • Deploys traefik proxy with Let's Encrypy integration for TLS
  • Deploys Celery manager and workers
  • Deploys core Girder and Dashboard services