Initial

03-main.tf

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+## This module creates number of servers in each of provided region.
+## I.e. if number_of_servers = 2 and regions = ["nyc1", "nyc2", "nyc3"] this will create six servers at summary.
+## # https://github.com/Arriven/db1000n/releases
+
+module "db1000n" {
+  source               = "./module"
+  count                = 2
+  regions              = ["nyc1", "nyc3", "sfo3", "ams3", "sgp1", "lon1", "fra1", "tor1", "blr1"]
+  db1000n_version      = "v0.5.20"
+  name                 = "db00-${count.index}"
+  digitalocean_tag     = "stop-sites"
+  image_name           = "ubuntu-20-04-x64"
+  size                 = "s-1vcpu-1gb"
+  ipv6                 = true
+  backups              = false
+  monitoring           = true
+  droplet_agent        = true
+  tags                 = "stop-sites"
+  digitalocean_ssh_key = "ssh_user_key_name"
+}

README.md

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-# do_terraform
-DO terraform module
+# DO terraform module [db1000n](https://github.com/Arriven/db1000n)
+
+This module creates a number of servers in each of provided region. If you set `count = 2` and regions = ["nyc1", "nyc2", "nyc3"] this will create six servers total. Two servers in each of regions.
+
+**Requriment:**
+- Digital Ocean account
+- API key
+- Already present SSH key in DO account
+- Terraform
+
+![](https://raw.githubusercontent.com/rmalenko/do_terraform/main/img/SCR-20220306-sq0.png)
+![](https://raw.githubusercontent.com/rmalenko/do_terraform/main/img/SCR-20220306-sqw.png)
+
+## ADD API key
+`./module/variables.tf`
+
+```
+variable "do_token" {
+  type    = string
+  default = "your_API_key"
+}
+```
+
+
+## How to add SSH key
+Settings -> Security -> Add SSH key
+
+remeber key's name and add it into: `./03-main.tf` string `digitalocean_ssh_key =` 
+
+```
+module "db1000n" {
+  source               = "./module"
+  count                = 2
+  regions              = ["nyc1", "nyc3", "sfo3", "ams3", "sgp1", "lon1", "fra1", "tor1", "blr1"]
+  name                 = "db00-${count.index}"
+  digitalocean_tag     = "stop-sites"
+  image_name           = "ubuntu-20-04-x64"
+  size                 = "s-1vcpu-1gb"
+  ipv6                 = true
+  backups              = false
+  monitoring           = true
+  droplet_agent        = true
+  tags                 = "stop-sites"
+  digitalocean_ssh_key = "SSH_key_name"
+}
+```
+
+`count =` - it's number of droplets creates in each of `regions` 
+
+Version - `db1000n_version = "v0.5.20"` actual version you may get [there](https://github.com/Arriven/db1000n/releases)
+
+
+## Also means 
+you are using ssh keys with name `~/.ssh/id_rsa.pub` if not, change it in `./module/variables.tf` these variables `variable "pub_key"` and `variable "pvt_key"`
+
+Run `terraform init` If I didn't miss anything, you will not get an error message.
+Then `terraform plan` and `terraform apply`
+delete `terraform destroy -auto-approve`
+

module/do-512-ams.tf

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+data "digitalocean_tag" "stop-sites" {
+  name = var.tags
+}
+
+data "digitalocean_ssh_key" "terraform" {
+  name = var.digitalocean_ssh_key
+}
+
+resource "local_file" "user_credentials" {
+  content = templatefile("${path.module}/script.tpl", {
+    db1000n_version = var.db1000n_version
+  })
+  filename = "${path.module}/script.sh"
+}
+
+resource "digitalocean_droplet" "db1000n" {
+  for_each      = toset(var.regions)
+  name          = "${var.name}-${each.key}"
+  size          = var.size
+  region        = each.key
+  ipv6          = var.ipv6
+  backups       = var.backups
+  monitoring    = var.monitoring
+  droplet_agent = var.droplet_agent
+  image         = var.image_name
+
+  tags = [data.digitalocean_tag.stop-sites.id]
+
+  ssh_keys = [
+    data.digitalocean_ssh_key.terraform.id
+  ]
+
+  connection {
+    user        = "root"
+    type        = "ssh"
+    private_key = file(var.pvt_key)
+    timeout     = "2m"
+    host        = self.ipv4_address
+  }
+
+  provisioner "file" {
+    source      = "${path.module}/script.sh"
+    destination = "/opt/script.sh"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "chmod +x /opt/script.sh",
+      "/opt/script.sh",
+    ]
+  }
+
+  depends_on = [ resource.local_file.user_credentials ]
+}

module/script.sh

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+#!/usr/bin/env bash
+
+printf %s "[Unit]
+Description=Ping monitoring service
+After=network.target
+Wants=network-online.target
+
+[Service]
+Restart=always
+Type=simple
+WorkingDirectory=/opt
+ExecStart=/opt/ping
+
+[Install]
+WantedBy=multi-user.target
+" | tee /etc/systemd/system/pings.service
+
+cd /opt
+wget https://github.com/Arriven/db1000n/releases/download/v0.5.20/db1000n-v0.5.20-linux-amd64.tar.gz --output-document=/opt/db1000n-linux-amd64.tar.gz
+tar -xf /opt/db1000n-linux-amd64.tar.gz
+mv ./db1000n ./ping
+chmod +x ./ping
+rm /opt/db1000n-linux-amd64.tar.gz /opt/script.sh
+
+systemctl daemon-reload
+systemctl enable pings.service
+systemctl start pings.service
+sleep 5s
+systemctl restart systemd-journald
+exit 0

module/script.tpl

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+#!/usr/bin/env bash
+
+printf %s "[Unit]
+Description=Ping monitoring service
+After=network.target
+Wants=network-online.target
+
+[Service]
+Restart=always
+Type=simple
+WorkingDirectory=/opt
+ExecStart=/opt/ping
+
+[Install]
+WantedBy=multi-user.target
+" | tee /etc/systemd/system/pings.service
+
+cd /opt
+wget https://github.com/Arriven/db1000n/releases/download/${db1000n_version}/db1000n-${db1000n_version}-linux-amd64.tar.gz --output-document=/opt/db1000n-linux-amd64.tar.gz
+tar -xf /opt/db1000n-linux-amd64.tar.gz
+mv ./db1000n ./ping
+chmod +x ./ping
+rm /opt/db1000n-linux-amd64.tar.gz /opt/script.sh
+
+systemctl daemon-reload
+systemctl enable pings.service
+systemctl start pings.service
+sleep 3
+systemctl restart systemd-journald
+exit 0

module/variables.tf

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+variable "pub_key" {
+  default = "~/.ssh/id_rsa.pub"
+}
+
+variable "pvt_key" {
+  default = "~/.ssh/id_rsa"
+}
+
+variable "regions" {
+  type = list(string)
+}
+
+variable "name" {
+  type = string
+}
+
+variable "digitalocean_tag" {
+  type = string
+}
+
+variable "size" {
+  type = string
+}
+
+variable "ipv6" {
+  type = string
+}
+
+variable "backups" {
+  type = string
+}
+
+variable "monitoring" {
+  type = string
+}
+
+variable "droplet_agent" {
+  type = string
+}
+
+variable "image_name" {
+  type = string
+}
+
+variable "tags" {
+  type = string
+}
+
+variable "digitalocean_ssh_key" {
+  type = string
+}
+
+variable "db1000n_version" {
+  type = string
+}

module/versions.tf

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+terraform {
+  required_providers {
+    digitalocean = {
+      source  = "digitalocean/digitalocean"
+      version = "~> 2.0"
+    }
+  }
+}
+

provider.tf

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+provider "digitalocean" {
+  token = var.do_token
+}
+
+terraform {
+  required_providers {
+    digitalocean = {
+      source  = "digitalocean/digitalocean"
+      version = "~> 2.0"
+    }
+  }
+}
+

variables.tf

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+# Adjust number of servers to match your load
+variable "number_of_servers" {
+  description = "Number of servers which will create in each of provided region"
+  default     = "2"
+}
+
+variable "do_token" {
+  type    = string
+  default = "API_tokeN_52e2"
+}