Add firewall example

examples/extra-droplets/README.md

@@ -4,4 +4,4 @@ This example shows how to add other droplets that are not provisioned by this mo
 
 ## Running it
 
-You can try out this example by providing a digitalocean access token and running `terraform apply`. Note that you may need to run `terraform get` first.
+You can try out this example by providing a digitalocean access token and running `terraform apply`. Note that you may need to run `terraform init` first.

examples/firewall/README.md

@@ -0,0 +1,7 @@
+# Example: cluster with firewall
+
+This example shows how to set up firewall rules for a DigitalOcean swarm mode cluster.
+
+## Running it
+
+You can try out this example by providing a digitalocean access token and running `terraform apply`. Note that you may need to run `terraform init` first.

examples/firewall/main.tf

@@ -0,0 +1,43 @@
+variable "do_token" {}
+
+provider "digitalocean" {
+  token = "${var.do_token}"
+}
+
+variable "ssh_keys" {
+  type = "list"
+}
+
+resource "digitalocean_tag" "cluster" {
+  name = "swarm-mode-cluster"
+}
+
+resource "digitalocean_tag" "manager" {
+  name = "manager"
+}
+
+resource "digitalocean_tag" "worker" {
+  name = "worker"
+}
+
+module "swarm-firewall" {
+  source                     = "github.com/thojkooi/terraform-digitalocean-swarm-firewall"
+  do_token                   = "${var.do_token}"
+  prefix                     = "example-com"
+  cluster_tags               = ["${digitalocean_tag.cluster.id}", "${digitalocean_tag.manager.id}", "${digitalocean_tag.worker.id}"]
+  cluster_droplet_ids        = []
+  allowed_outbound_addresses = ["0.0.0.0/0", "::/0"]
+}
+
+module "swarm-cluster" {
+  source           = "github.com/thojkooi/terraform-digitalocean-docker-swarm-mode"
+  total_managers   = 3
+  total_workers    = 5
+  region           = "ams3"
+  do_token         = "${var.do_token}"
+  manager_ssh_keys = "${var.ssh_keys}"
+  worker_ssh_keys  = "${var.ssh_keys}"
+  manager_tags     = ["${digitalocean_tag.cluster.id}", "${digitalocean_tag.manager.id}"]
+  worker_tags      = ["${digitalocean_tag.cluster.id}", "${digitalocean_tag.worker.id}"]
+  domain           = "do.example.com"
+}

examples/user-data/README.md

@@ -4,6 +4,6 @@ This example uses the Centos 7 image from DigitalOcean and uses user data to ins
 
 ## Running it
 
-You can try out this example by providing a digitalocean access token and running `terraform apply`. Note that you may need to run `terraform get` first.
+You can try out this example by providing a digitalocean access token and running `terraform apply`. Note that you may need to run `terraform init` first.
 
 This example takes a while to complete, since Terraform is waiting until Docker is available on the provisioned droplets. This may take roughly 4 minutes.

main.tf

@@ -8,7 +8,7 @@ module "managers" {
   region = "${var.region}"
   domain = "${var.domain}"
 
-  total_instances = "${var.total_managers + 1}"
+  total_instances = "${var.total_managers}"
   user_data       = "${var.manager_user_data}"
   tags            = "${var.manager_tags}"