AWS deploy: split qed terraform module in two (qed, agent)

This is to prepare the qed module to configure an EBS volume.

deploy/aws/main.tf

@@ -66,7 +66,7 @@ module "inmemory-storage" {
 }
 
 module "agent-publisher" {
-  source = "./modules/qed"
+  source = "./modules/agent"
 
   name                   = "agent-publisher"
   instance_type          = "t3.small"
@@ -80,7 +80,7 @@ module "agent-publisher" {
 }
 
 module "agent-monitor" {
-  source = "./modules/qed"
+  source = "./modules/agent"
 
   name                   = "agent-monitor"
   count                  = 1
@@ -95,7 +95,7 @@ module "agent-monitor" {
 }
 
 module "agent-auditor" {
-  source = "./modules/qed"
+  source = "./modules/agent"
 
   name                   = "agent-auditor"
   instance_type          = "t3.small"

deploy/aws/modules/agent/main.tf

@@ -0,0 +1,49 @@
+#  Copyright 2018 Banco Bilbao Vizcaya Argentaria, S.A.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+data "aws_ami" "amazon_linux" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["amzn2-ami-hvm-*-x86_64-gp2"]
+  }
+
+  filter {
+    name   = "owner-alias"
+    values = ["amazon"]
+  }
+}
+
+resource "aws_instance" "qed-agent" {
+  count                = "${var.count}"
+  ami                  = "${data.aws_ami.amazon_linux.id}"
+  instance_type        = "${var.instance_type}"
+  iam_instance_profile = "${var.iam_instance_profile}"
+
+  vpc_security_group_ids      = ["${var.vpc_security_group_ids}"]
+  subnet_id                   = "${var.subnet_id}"
+  associate_public_ip_address = true
+  key_name                    = "${var.key_name}"
+
+  root_block_device = [{
+    volume_type = "gp2"
+    volume_size = "${var.volume_size}"
+  }]
+
+  tags {
+    Name = "${format("${var.name}-%01d", count.index)}"
+    Role = "${var.role}"
+  }
+}

deploy/aws/modules/agent/outputs.tf

@@ -0,0 +1,7 @@
+output "private_ip" {
+  value = "${aws_instance.qed-agent.*.private_ip}"
+}
+
+output "public_ip" {
+  value = "${aws_instance.qed-agent.*.public_ip}"
+}

deploy/aws/modules/agent/variables.tf

@@ -0,0 +1,47 @@
+/*
+   Copyright 2018 Banco Bilbao Vizcaya Argentaria, S.A.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+variable "instance_type" {}
+
+variable "iam_instance_profile" {}
+
+variable "volume_size" {}
+
+variable "vpc_security_group_ids" {}
+
+variable "subnet_id" {}
+
+variable "key_name" {}
+
+variable "key_path" {}
+
+variable "name" {}
+
+variable "role" {
+  default = "agent"
+}
+
+variable "path" {
+  default = "/var/tmp/qed"
+}
+
+variable "count" {
+  default = 1
+}
+
+variable "command" {
+  default = "start"
+}

deploy/aws/provision/main.yml

@@ -40,7 +40,7 @@
     - include: tasks/common/main.yml
 
 
-- hosts: qed-server
+- hosts: qed-server:qed-agent
   remote_user: ec2-user
   become: true
   vars_files: