Terraform Bitcoin nodes on Digitalocean

Easy terraform setup for Bitcoin nodes on DigitalOcean.

There are different branches each one related to different clients and providers.

• do/bitcoin-unlimited: Bitcoin Unlimited on DigitalOcean
• do/bitcoin-classic: Bitcoin Classic on DigitalOcean
• do/bitcoin-core: Bitcoin Core on DigitalOcean

Feel free to change the code and create Pull requests to support multiple providers, client versions, and remember: peaceful diversity is the way to survive!

Requirements

To start using this tool you need Terraform installed. On macOS with homebrew installed you can simply run:

$ brew install terraform

You will also need a DigitalOcean API key. You can generate one here, and remember to provide both read and write permissions.

How to configure

Terraform will ask specific tokens that are missing (Like the DigitalOcean Token), but it is possible to change the amount of nodes or their size by modifying the file called variables.tf.

For example, to deploy 3 nodes in nyc and 2 in ams e 2 in sgp you can modify count_map and total_count like the following:

[...]
variable "count_map" {
  description = "Define how many nodes are required per region"

  default = {
    "sgp1" = 4
    "nyc3" = 2
    "ams3" = 2
  }
}

variable "total_count" {
  description = "Total sum of all the BTC nodes. Must be theright sum of node"
  default     = 8
}
[...]

It is Important that:

1. total_count is updated correctly with the total quantity of nodes
2. count_map is not filled with "ams3" = 0 values, instead those has to be deleted

If needed, it is possible also to enable the Status Cake support, by uncommenting the lines in variables.tf, providers.tf and status-cake.tf.

It is possible also, to use environmental variables to set up tokents, but the code has to be modified accordingly.

root access via SSH/mosh is enabled by default, but it is possible to uncomment a line in nodes.tf to disable it.

How to run

Clone this repository and then you can get an overview of what will be executed by running

$ terraform plan

If the planned changes are what you wanted, you can apply them by using the following command:

$ terraform apply

Farite! When completed you should see a list of IPs of your nodes. You can check if everything is fine by running:

ssh bitcoin@[IP HERE] bitcoin-cli getinfo