Merge pull request #2326 from greenbrian/master

Add Terraform config for Digital Ocean

terraform/digitalocean/README.md

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+
+# Requirements
+Terraform installed  
+Digital Ocean account with API key  
+SSH key uploaded to Digital Ocean  
+
+### Variables
+Populate terraform.tfvars as follows (or execute with arguments as shown in Usage)
+
+    key_path = "~/.ssh/id_rsa"
+    do_token = "ASDFQWERTYDERP"
+    num_instances = "3"
+    ssh_key_ID = "my_ssh_keyID_in_digital_ocean"
+
+
+# Usage
+
+    terraform plan                      \
+      -var 'key_path=~/.ssh/id_rsa'     \
+      -var 'do_token=ASDFQWERTYDERP'    \
+      -var 'num_instances=3'            \
+      - var 'ssh_key_ID=86:75:30:99:88:88:AA:FF:DD'
+
+    terraform apply                     \
+      -var 'key_path=~/.ssh/id_rsa'     \
+      -var 'do_token=ASDFQWERTYDERP'    \
+      -var 'num_instances=3'            \
+      - var 'ssh_key_ID=86:75:30:99:88:88:AA:FF:DD'

terraform/digitalocean/consul.tf

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+provider "digitalocean" {
+  token = "${var.do_token}"
+}
+
+resource "digitalocean_droplet" "consul" {
+  ssh_keys = ["${var.ssh_key_ID}"]
+	image = "${var.ubuntu}"
+	region = "${var.do_tor1}"
+	size = "2gb"
+	private_networking = true
+	name = "consul${count.index + 1}"
+  count = "${var.num_instances}"
+
+  connection {
+    type = "ssh"
+    private_key = "${file("${var.key_path}")}"
+    user = "root"
+    timeout = "2m"
+  }
+
+  provisioner "file" {
+      source      = "${path.module}/../shared/scripts/debian_upstart.conf"
+      destination = "/tmp/upstart.conf"
+  }
+
+  provisioner "remote-exec" {
+      inline = [
+          "echo ${var.num_instances} > /tmp/consul-server-count",
+          "echo ${digitalocean_droplet.consul.0.ipv4_address} > /tmp/consul-server-addr",
+      ]
+  }
+
+  provisioner "remote-exec" {
+      scripts = [
+          "${path.module}/../shared/scripts/install.sh",
+          "${path.module}/../shared/scripts/service.sh",
+          "${path.module}/../shared/scripts/ip_tables.sh",
+      ]
+  }
+
+}

terraform/digitalocean/outputs.tf

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+output "first_consule_node_address" {
+    value = "${digitalocean_droplet.consul.0.ipv4_address}"
+}
+
+output "all_addresses" {
+  value = ["${digitalocean_droplet.consul.*.ipv4_address}"]
+}

terraform/digitalocean/terraform.tfvars.example

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+key_path = "~/.ssh/id_rsa"
+ssh_key_ID = "my_ssh_key_ID_or_fingerprint_NOT_SSH_KEY_NAME"
+do_token = "ASDFQWERTYDERP"
+num_instances = "3"

terraform/digitalocean/variables.tf

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+variable "do_token" {}
+variable "key_path" {}
+variable "ssh_key_ID" {}
+variable "num_instances" {}
+
+## below sourced from 
+## https://github.com/hashicorp/terraform/blob/master/examples/digitalocean/variable.tf
+
+# ####
+# Current Availiable Datacenter Regions
+# As of 05-07-2016
+#
+
+variable "do_ams2" {
+    description = "Digital Ocean Amsterdam Data Center 2"
+    default = "ams2"
+}
+
+variable "do_ams3" {
+    description = "Digital Ocean Amsterdam Data Center 3"
+    default = "ams3"
+}
+
+variable "do_fra1" {
+    description = "Digital Ocean Frankfurt Data Center 1"
+    default = "fra1"
+}
+
+variable "do_lon1" {
+    description = "Digital Ocean London Data Center 1"
+    default = "lon1"
+}
+
+variable "do_nyc1" {
+    description = "Digital Ocean New York Data Center 1"
+    default = "nyc1"
+}
+
+variable "do_nyc2" {
+    description = "Digital Ocean New York Data Center 2"
+    default = "nyc2"
+}
+
+variable "do_nyc3" {
+    description = "Digital Ocean New York Data Center 3"
+    default = "nyc3"
+}
+
+variable "do_sfo1" {
+    description = "Digital Ocean San Francisco Data Center 1"
+    default = "sfo1"
+}
+
+variable "do_sgp1" {
+    description = "Digital Ocean Singapore Data Center 1"
+    default = "sgp1"
+}
+
+variable "do_tor1" {
+    description = "Digital Ocean Toronto Datacenter 1"
+    default = "tor1"
+}
+
+# Default Os
+
+variable "ubuntu" {
+    description = "Default LTS"
+    default = "ubuntu-14-04-x64"
+}
+
+variable "centos" {
+    description = "Default Centos"
+    default = "centos-72-x64"
+}
+
+variable "coreos" {
+    description = "Defaut Coreos"
+    default = "coreos-899.17.0"
+}