Moves to DigitalOcean from AWS (#4)

* Moves to DigitalOcean from AWS

* README

* Removes deployment workflow

---------

Co-authored-by: Joe Carstairs <65492573+Sycamost@users.noreply.github.com>

infrastructure/variables.tf

@@ -1,28 +1,5 @@
-variable "aws_access_key" {
+variable "do_token" {
   type        = string
   sensitive   = true
-  description = "An AWS access key with permission to provision all relevant resources"
-}
-
-variable "aws_secret_key" {
-  type        = string
-  sensitive   = true
-  description = "The secret corresponding to the provided AWS access key"
-}
-
-variable "secret_s3_bucket_suffix" {
-  type        = string
-  sensitive   = true
-  description = "This string should be a long string of up to 54 random characters. It will be appended to the S3 bucket name to mitigate the risk of DDoS attacks."
-  nullable    = false
-
-  validation {
-    condition     = length(var.secret_s3_bucket_suffix) > 12
-    error_message = "This string should be at least 12 characters"
-  }
-
-  validation {
-    condition     = length(var.secret_s3_bucket_suffix) <= 54
-    error_message = "This string should be no more than 54 characters long"
-  }
+  description = "A DigitalOcean access token. Can also be provided as an environment variable"
 }