Full Code of mlabouardy/terraform-aws-labs for AI

Repository: mlabouardy/terraform-aws-labs
Branch: master
Commit: 945a5242405f
Files: 67
Total size: 38.8 KB

Directory structure:
gitextract_gpwgjukk/

├── .gitmodules
├── LICENSE
├── README.md
├── autoscalling-elb/
│   └── main.tf
├── bastion-highavailability/
│   ├── README.md
│   ├── dns.tf
│   ├── outputs.tf
│   ├── provider.tf
│   ├── resources.tf
│   ├── variables.tf
│   ├── variables.tfvars
│   └── vpc.tf
├── ci-pipeline/
│   ├── README.md
│   ├── main.tf
│   └── setup.sh
├── docker-registry/
│   ├── main.tf
│   ├── outputs.tf
│   ├── setup.sh
│   ├── variables.tf
│   └── variables.tfvars
├── docker-swarm-cluster/
│   ├── README.md
│   ├── hosts
│   ├── install-docker.sh
│   ├── outputs.tf
│   ├── playbook.yml
│   ├── provider.tf
│   ├── resources.tf
│   ├── security_groups.tf
│   └── variables.tf
├── ec2-elb/
│   ├── bootstrap-server1.sh
│   ├── bootstrap-server2.sh
│   ├── main.tf
│   └── variables.tf
├── etcd-cluster/
│   ├── README.md
│   ├── cloud-config.yml
│   ├── provider.tf
│   ├── resources.tf
│   ├── security_groups.tf
│   └── variables.tf
├── linuxkit-aws/
│   ├── aws.yml
│   ├── files/
│   │   ├── assume-role-policy.json
│   │   └── policy.tpl
│   └── main.tf
├── single-ec2-instance/
│   ├── README.md
│   └── main.tf
├── telegraf-influxdb-grafana/
│   ├── bootstrap.sh
│   ├── main.tf
│   └── variables.tf
├── tick-stack-ansible/
│   ├── README.md
│   ├── ansible/
│   │   ├── group_vars/
│   │   │   └── all
│   │   ├── inventory
│   │   └── playbook.yml
│   └── terraform/
│       ├── main.tf
│       ├── outputs.tf
│       ├── variables.tf
│       └── variables.tfvars
├── vpc-public-private-subnet/
│   ├── README.md
│   ├── install.sh
│   ├── provider.tf
│   ├── resources.tf
│   ├── variables.tf
│   └── vpc.tf
└── wordpress/
    ├── .gitignore
    ├── bootstrap.sh
    ├── main.tf
    ├── outputs.tf
    └── variables.tf

================================================
FILE CONTENTS
================================================

================================================
FILE: .gitmodules
================================================
[submodule "telegraf-influxdb-grafana/telegraf-influxdb-grafana"]
	path = telegraf-influxdb-grafana/telegraf-influxdb-grafana
	url = https://github.com/mlabouardy/telegraf-influxdb-grafana.git


================================================
FILE: LICENSE
================================================
MIT License

Copyright (c) 2017 LABOUARDY Mohamed

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


================================================
FILE: README.md
================================================
# Terraform AWS Use cases
Terraform template for AWS provider

# How to use

- Set AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, environment variables

```
$ export AWS_ACCESS_KEY_ID="YOUR ACCESS KEY ID"
$ export AWS_SECRET_ACCESS_KEY="YOUR SECRET ACCESS KEY"
```

# Tutorials

* <a href="http://www.labouardy.com/setting-up-an-etcd-cluster-on-aws-using-coreos-terraform/">Setting up an etcd cluster on AWS using CoreOS & Terraform</a>
* <a href="http://www.labouardy.com/setup-docker-swarm-on-aws-using-ansible-terraform/">Setup Docker Swarm on AWS using Ansible & Terraform</a>
* <a href="http://www.labouardy.com/manage-aws-vpc-as-infrastructure-as-code-with-terraform/">Manage AWS VPC as Infrastructure as Code with Terraform</a>
* <a href="http://www.labouardy.com/manage-aws-infrastracture-as-code-with-terraform/" >Manage AWS Infrastracture as Code with Terraform</a>
* <a href="http://www.blog.labouardy.com/setup-high-availability-bastion-hosts-with-route53/">Highly Available Bastion Hosts with Route53</a>
* <a href="http://www.blog.labouardy.com/highly-available-docker-registry-on-aws-with-nexus/">Highly Available Docker Registry on AWS with Nexus</a>


================================================
FILE: autoscalling-elb/main.tf
================================================
# Define launch configuration

resource "aws_launch_configuration" "previously_webcluster" {
  name = "previously_webcluster"
  image_id = "${var.ami-webserver}"
  instance_type = "${var.instance_type}"

  lifecycle {
    create_before_destroy = true
  }
}

resource "aws_autoscaling_group" "previously_asg" {
    name = "previously_asg"
    launch_configuration = "${aws_launch_configuration.previously_webcluster.name}"
    min_size = 2
    max_size = 3

    lifecycle {
      create_before_destroy = true
    }
}

resource "aws_elb" "previously_elb" {
  name = "previously_elb"
  availability_zone = ["us-west-2a", "us-west-2b"]
  subnets = ["${aws_subnet.previously_private_us_west_2a.id}", "${aws_subnet.previously_private_us_west_2b.id}"]
  security_groups = ["${aws_security_group.previously_elb_sg.id}"]

  listener {
    instance_port = 80
    instance_protocol = "http"
    lb_port = 80
    lb_protocol = "http"
  }

  health_check {
    healthy_threshold = 2
    unhealthy_threshold = 2
    timeout = 3
    target = "HTTP:80/"
    interval = 30
  }

  cross_zone_load_balancing = true
  idle_timeout = 400
  connection_draining = true
  connection_draining_timeout = 400

  tags {
    Name = "previously_elb"
  }
}


================================================
FILE: bastion-highavailability/README.md
================================================
<p align="center">
  <img src="http://i1.wp.com/www.blog.labouardy.com/wp-content/uploads/2017/10/bastion-1.png?w=741"/>
</p>


================================================
FILE: bastion-highavailability/dns.tf
================================================
resource "aws_route53_record" "bastion-slowcoder" {
  zone_id = "${var.zone_id}"
  name = "bastion.slowcoder.com"
  type = "A"
  ttl = "330"
  records = ["${aws_eip.bastion-1a-eip.public_ip}", "${aws_eip.bastion-1b-eip.public_ip}"]
}


================================================
FILE: bastion-highavailability/outputs.tf
================================================
output "BASTION-1" {
  value = "${aws_eip.bastion-1a-eip.public_ip}"
}

output "BASTION-2" {
  value = "${aws_eip.bastion-1b-eip.public_ip}"
}

output "PRIVATE-EC2" {
  value = "${aws_instance.private-ec2.private_ip}"
}


================================================
FILE: bastion-highavailability/provider.tf
================================================
provider "aws" {
  region = "${var.region}"
}


================================================
FILE: bastion-highavailability/resources.tf
================================================
resource "aws_instance" "bastion-1a" {
  ami = "${lookup(var.amis, var.region)}"
  instance_type = "${var.instance_type}"
  key_name = "${var.key_name}"
  subnet_id = "${aws_subnet.us-east-1a-public.id}"
  associate_public_ip_address = true

  tags {
    Name = "bastion-1a"
  }
}

resource "aws_eip" "bastion-1a-eip" {
  instance = "${aws_instance.bastion-1a.id}"
  vpc = true
}

resource "aws_instance" "bastion-1b" {
  ami = "${lookup(var.amis, var.region)}"
  instance_type = "${var.instance_type}"
  key_name = "${var.key_name}"
  subnet_id = "${aws_subnet.us-east-1b-public.id}"
  associate_public_ip_address = true

  tags {
    Name = "bastion-1b"
  }
}

resource "aws_eip" "bastion-1b-eip" {
  instance = "${aws_instance.bastion-1b.id}"
  vpc = true
}

resource "aws_instance" "private-ec2" {
  ami = "${lookup(var.amis, var.region)}"
  instance_type = "${var.instance_type}"
  key_name = "${var.key_name}"
  subnet_id = "${aws_subnet.us-east-1a-private.id}"

  tags {
    Name = "private-ec2"
  }
}


================================================
FILE: bastion-highavailability/variables.tf
================================================
variable "key_name" {}
variable "zone_id" {}

variable "region" {
  description = "AWS Region"
  default = "us-east-1"
}

variable "vpc_cidr" {
  description = "VPC CIDR Block"
  default = "10.0.0.0/16"
}

variable "us_east_1a_public_cidr" {
  description = "CIDR for the public subnet"
  default = "10.0.1.0/24"
}

variable "us_east_1b_public_cidr" {
  description = "CIDR for the public subnet"
  default = "10.0.2.0/24"
}

variable "us_east_1a_private_cidr" {
  description = "CIDR for the public subnet"
  default = "10.0.3.0/24"
}

variable "availability_zones" {
  type = "map"
  description = "Availability Zones by CIDR"
  default = {
    "10.0.1.0/24" = "us-east-1a"
    "10.0.2.0/24" = "us-east-1b"
    "10.0.3.0/24" = "us-east-1a"
  }
}

variable "amis" {
  type = "map"
  description = "AMIs by region"
  default = {
    us-east-1 = "ami-4fffc834"
  }
}

variable "instance_type" {
  description = "EC2 instance type"
  default = "t2.micro"
}


================================================
FILE: bastion-highavailability/variables.tfvars
================================================
key_name=""
zone_id=""


================================================
FILE: bastion-highavailability/vpc.tf
================================================
resource "aws_vpc" "default" {
  cidr_block = "${var.vpc_cidr}"
  enable_dns_hostnames = true

  tags {
    Name = "testing"
  }
}

resource "aws_subnet" "us-east-1a-public" {
  vpc_id = "${aws_vpc.default.id}"
  cidr_block = "${var.us_east_1a_public_cidr}"
  availability_zone = "${lookup(var.availability_zones, var.us_east_1a_public_cidr)}"

  tags {
    Name = "us-east-1a-public"
  }
}

resource "aws_subnet" "us-east-1b-public" {
  vpc_id = "${aws_vpc.default.id}"
  cidr_block = "${var.us_east_1b_public_cidr}"
  availability_zone = "${lookup(var.availability_zones, var.us_east_1b_public_cidr)}"

  tags {
    Name = "us-east-1b-public"
  }
}

resource "aws_subnet" "us-east-1a-private" {
  vpc_id = "${aws_vpc.default.id}"
  cidr_block = "${var.us_east_1a_private_cidr}"
  availability_zone = "${lookup(var.availability_zones, var.us_east_1a_private_cidr)}"

  tags {
    Name = "us-east-1a-private"
  }
}

resource "aws_internet_gateway" "default" {
  vpc_id = "${aws_vpc.default.id}"

  tags {
    Name = "igw"
  }
}

resource "aws_route_table" "default" {
  vpc_id = "${aws_vpc.default.id}"

  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = "${aws_internet_gateway.default.id}"
  }

  tags {
    Name = "public-rt"
  }
}

resource "aws_route_table_association" "1a-public-rt" {
  subnet_id = "${aws_subnet.us-east-1a-public.id}"
  route_table_id = "${aws_route_table.default.id}"
}

resource "aws_route_table_association" "1b-public-rt" {
  subnet_id = "${aws_subnet.us-east-1b-public.id}"
  route_table_id = "${aws_route_table.default.id}"
}


================================================
FILE: ci-pipeline/README.md
================================================


================================================
FILE: ci-pipeline/main.tf
================================================
provider "aws" {
  region = "${var.region}"
  access_key = "${var.access_key}"
  secret_key = "${var.secret_key}"
}

// SSH KeyPair
resource "aws_key_pair" "default" {
  key_name   = "registry"
  public_key = "${file("${var.ssh_public_key}")}"
}

// Jenkins Master
resource "aws_instance" "ci-master" {
  ami = "${lookup()}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  security_groups = ["${aws_security_group.default.name}"]

  user_data = "${file("setup.sh")}"

  tags {
    Name = "ci-master"
  }
}

// Jenkins Slave
resource "aws_instance" "ci-slave" {
  ami = "${lookup()}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"

  tags {
    Name = "ci-slave"
  }
}

// Deployment Environment
resource "aws_instance" "node" {
  count = 3
  ami = "${lookup()}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"

  tags {
    Name = "node-${count.index}"
  }
}


================================================
FILE: ci-pipeline/setup.sh
================================================
#!/bin/sh
yum update -y
yum install -y docker
service docker start
usermod -aG docker ec2-user


================================================
FILE: docker-registry/main.tf
================================================
provider "aws" {
  region     = "${var.region}"
  secret_key = "${var.secret_key}"
  access_key = "${var.access_key}"
}

resource "aws_security_group" "default" {
  name        = "registry_security_group"
  description = "Allow access to Nexus dashboard & traffic on port 5000"

  ingress {
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port   = 8081
    to_port     = 8081
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port   = 5000
    to_port     = 5000
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port   = 0
    to_port     = 0
    protocol    = -1
    cidr_blocks = ["0.0.0.0/0"]
  }

  tags {
    Name = "registry_security_group"
  }
}

resource "aws_key_pair" "default" {
  key_name   = "registry"
  public_key = "${file("${var.ssh_public_key}")}"
}

resource "aws_eip" "default" {
  instance = "${aws_instance.default.id}"
  vpc      = true
}

resource "aws_instance" "default" {
  ami             = "${lookup(var.amis, var.region)}"
  instance_type   = "${var.instance_type}"
  key_name        = "${aws_key_pair.default.id}"
  security_groups = ["${aws_security_group.default.name}"]

  user_data = "${file("setup.sh")}"

  tags {
    Name = "registry"
  }
}

resource "aws_route53_record" "default" {
  zone_id = "${var.dns_zone_id}"
  name    = "${var.dns_name}"
  type    = "A"
  ttl     = "300"
  records = ["${aws_eip.default.public_ip}"]
}


================================================
FILE: docker-registry/outputs.tf
================================================
output "Registry IP" {
  value = "${aws_eip.default.public_ip}"
}


================================================
FILE: docker-registry/setup.sh
================================================
#!/bin/sh
yum update -y
yum install -y docker
service docker start
usermod -aG docker ec2-user
docker swarm init
docker service create --replicas 1 --name registry --publish 5000:5000 --publish 8081:8081 sonatype/nexus3:3.6.2


================================================
FILE: docker-registry/variables.tf
================================================
variable "region" {}
variable "secret_key" {}
variable "access_key" {}
variable "ssh_public_key" {}
variable "dns_zone_id" {}

variable "instance_type" {
  default = "t2.medium"
}

variable "amis" {
  type        = "map"
  description = "Amazon Linux Image"

  default = {
    "us-east-1"  = "ami-55ef662f"
    "us-east-2"  = "ami-15e9c770"
    "eu-west-2"  = "ami-e7d6c983"
    "eu-west-1"  = "ami-1a962263"
    "ap-south-1" = "ami-d5c18eba"
  }
}

variable "dns_name" {
  default = "registry.slowcoder.com"
}


================================================
FILE: docker-registry/variables.tfvars
================================================
region = "YOUR AWS REGION"
secret_key = "YOUR AWS SECRET KEY"
access_key = "YOUR AWS ACCESS KEY ID"
ssh_public_key = "YOUR SSH PUBLIC KEY (.pub)"
dns_zone_id = "YOUR ROUTE53 DNS ZONE ID"


================================================
FILE: docker-swarm-cluster/README.md
================================================
<p align="center">
  <img src="http://i0.wp.com/www.blog.labouardy.com/wp-content/uploads/2017/08/swarm_ansible_terraform_aws.png?w=462"/>
</p>

How to setup a docker swarm cluster in action is shown below:

[![asciicast](https://asciinema.org/a/135278.png)](https://asciinema.org/a/135278)


================================================
FILE: docker-swarm-cluster/hosts
================================================
[masters]

[workers]


================================================
FILE: docker-swarm-cluster/install-docker.sh
================================================
#!/bin/sh
yum update
yum install -y docker
service docker start
usermod -aG docker ec2-user


================================================
FILE: docker-swarm-cluster/outputs.tf
================================================
output "MASTER" {
  value = "${aws_instance.master.public_ip}"
}

output "WORKER1" {
  value = "${aws_instance.worker1.public_ip}"
}

output "WORKER2" {
  value = "${aws_instance.worker2.public_ip}"
}


================================================
FILE: docker-swarm-cluster/playbook.yml
================================================
---
  - name: Init Swarm Master
    hosts: masters
    gather_facts: False
    remote_user: ec2-user
    tasks:
      - name: Swarm Init
        command: docker swarm init --advertise-addr {{ inventory_hostname }}

      - name: Get Worker Token
        command: docker swarm join-token worker -q
        register: worker_token

      - name: Show Worker Token
        debug: var=worker_token.stdout

      - name: Master Token
        command: docker swarm join-token manager -q
        register: master_token

      - name: Show Master Token
        debug: var=master_token.stdout

  - name: Join Swarm Cluster
    hosts: workers
    remote_user: ec2-user
    gather_facts: False
    vars:
      token: "{{ hostvars[groups['masters'][0]]['worker_token']['stdout'] }}"
      master: "{{ hostvars[groups['masters'][0]]['inventory_hostname'] }}"
    tasks:
      - name: Join Swarm Cluster as a Worker
        command: docker swarm join --token {{ token }} {{ master }}:2377
        register: worker

      - name: Show Results
        debug: var=worker.stdout

      - name: Show Errors
        debug: var=worker.stderr


================================================
FILE: docker-swarm-cluster/provider.tf
================================================
provider "aws" {
  region = "${var.aws_region}"
}


================================================
FILE: docker-swarm-cluster/resources.tf
================================================
resource "aws_key_pair" "default"{
  key_name = "clusterkp"
  public_key = "${file("${var.key_path}")}"
}

resource "aws_instance" "master" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  user_data = "${file("${var.bootstrap_path}")}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]

  tags {
    Name  = "master"
  }
}

resource "aws_instance" "worker1" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  user_data = "${file("${var.bootstrap_path}")}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]

  tags {
    Name  = "worker 1"
  }
}

resource "aws_instance" "worker2" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  user_data = "${file("${var.bootstrap_path}")}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]

  tags {
    Name  = "worker 2"
  }
}


================================================
FILE: docker-swarm-cluster/security_groups.tf
================================================
resource "aws_security_group" "default" {
  name = "sgswarmcluster"

  # Allow all inbound
  ingress {
    from_port   = 0
    to_port     = 65535
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port   = 0
    to_port     = 65535
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  # Enable ICMP
  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["0.0.0.0/0"]
  }
}


================================================
FILE: docker-swarm-cluster/variables.tf
================================================
variable "aws_region" {
  description = "AWS region on which we will setup the swarm cluster"
  default = "us-east-1"
}

variable "ami" {
  description = "Amazon Linux AMI"
  default = "ami-4fffc834"
}

variable "instance_type" {
  description = "Instance type"
  default = "t2.micro"
}

variable "key_path" {
  description = "SSH Public Key path"
  default = "/home/core/.ssh/id_rsa.pub"
}

variable "bootstrap_path" {
  description = "Script to install Docker Engine"
  default = "install-docker.sh"
}


================================================
FILE: ec2-elb/bootstrap-server1.sh
================================================
#!/bin/sh
yum install -y httpd
service start httpd
chkconfig httpd on
echo "hello world server 1" > /var/www/html/index.html


================================================
FILE: ec2-elb/bootstrap-server2.sh
================================================
#!/bin/sh
yum install -y httpd
service start httpd
chkconfig httpd on
echo "hello world server 2" > /var/www/html/index.html


================================================
FILE: ec2-elb/main.tf
================================================
provider "aws" {
  region = "${var.region}"
}

resource "aws_security_group" "default" {
  name = "ec2-elb-sg"

  ingress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

resource "aws_key_pair" "default" {
  key_name = "ec2-elb-key"
  public_key = "${file("${var.key_path}")}"
}

resource "aws_instance" "server1" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  security_groups = ["${aws_security_group.default.name}"]
  user_data = "${file("bootstrap-server1.sh")}"

  tags {
    Name = "server1"
  }
}

resource "aws_instance" "server2" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  security_groups = ["${aws_security_group.default.name}"]
  user_data = "${file("bootstrap-server2.sh")}"

  tags {
    Name = "server2"
  }
}

resource "aws_elb" "default" {
  name = "ec2-elb"
  instances = ["${aws_instance.server1.id}", "${aws_instance.server2.id}"]
  availability_zones = ["us-east-1a", "us-east-1b", "us-east-1c"]

  listener {
    instance_port = 80
    instance_protocol = "tcp"
    lb_port = 80
    lb_protocol = "tcp"
  }

  health_check {
    target = "HTTP:80/"
    healthy_threshold = 2
    unhealthy_threshold = 2
    interval = 30
    timeout = 5
  }

  tags {
    Name = "ec2-elb"
  }
}


================================================
FILE: ec2-elb/variables.tf
================================================
variable "region" {
  description = "AWS Region"
  default = "us-east-1"
}

variable "key_path" {
  description = "Public key path"
  default = "/root/.ssh/id_rsa.pub"
}

variable "ami" {
  description = "AMI"
  default = "ami-4fffc834"
}

variable "instance_type" {
  description = "EC2 instance type"
  default = "t2.micro"
}


================================================
FILE: etcd-cluster/README.md
================================================
<p align="center">
  <img src="http://i2.wp.com/www.blog.labouardy.com/wp-content/uploads/2017/08/etcd_cluster.png?w=462"/>
</p>

How to setup an etcd cluster on AWS is shown below:

[![asciicast](https://asciinema.org/a/135407.png)](https://asciinema.org/a/135407)


================================================
FILE: etcd-cluster/cloud-config.yml
================================================
#cloud-config

write_files:
  - path: /tmp/done
    owner: core:core
    permissions: 0644
    content: |
      Cloud config has been provisionned

coreos:
  etcd2:
    discovery: "https://discovery.etcd.io/b0d368f43a40eeb76b98efea9bb4055c"
    advertise-client-urls: "http://$private_ipv4:2379"
    initial-advertise-peer-urls: "http://$private_ipv4:2380"
    listen-client-urls: "http://$private_ipv4:2379,http://127.0.0.1:2379"
    listen-peer-urls: "http://$private_ipv4:2380"
  update:
    reboot-strategy: off
  units:
    - name: etcd2.service
      command: start


================================================
FILE: etcd-cluster/provider.tf
================================================
provider "aws" {
  region = "${var.region}"
}


================================================
FILE: etcd-cluster/resources.tf
================================================
resource "aws_key_pair" "default" {
  key_name = "etcdcluster"
  public_key = "${file("${var.key_path}")}"
}

resource "aws_instance" "node1" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]
  user_data = "${file("cloud-config.yml")}"

  tags {
    Name = "node1"
  }
}

resource "aws_instance" "node2" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]
  user_data = "${file("cloud-config.yml")}"

  tags {
    Name = "node2"
  }
}

resource "aws_instance" "node3" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  vpc_security_group_ids = ["${aws_security_group.default.id}"]
  user_data = "${file("cloud-config.yml")}"

  tags {
    Name = "node3"
  }
}


================================================
FILE: etcd-cluster/security_groups.tf
================================================
resource "aws_security_group" "default" {
  name = "etcdclustersg"

  ingress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["0.0.0.0/0"]
  }
}


================================================
FILE: etcd-cluster/variables.tf
================================================
variable "region" {
  description = "AWS Region"
  default = "us-east-1"
}

variable "ami" {
  description = "CoreOS AMI"
  default = "ami-38714c43"
}

variable "instance_type" {
  description = "Instance type"
  default = "t1.micro"
}

variable "key_path" {
  description = "SSH public key path"
  default = "/home/core/.ssh/id_rsa.pub"
}


================================================
FILE: linuxkit-aws/aws.yml
================================================
kernel:
  image: linuxkit/kernel:4.9.39
  cmdline: "console=ttyS0"
init:
  - linuxkit/init:838b772355a8690143b37de1cdd4ac5db725271f
  - linuxkit/runc:d5cbeb95bdafedb82ad2cf11cff1a5da7fcae630
  - linuxkit/containerd:e33e0534d6fca88e1eb86897a1ea410b4a5d722e
  - linuxkit/ca-certificates:67acf038c44bb191ebb704ec7bb39a1524052cdf
onboot:
  - name: sysctl
    image: linuxkit/sysctl:d1a43c7c91e92374766f962dc8534cf9508756b0
  - name: dhcpcd
    image: linuxkit/dhcpcd:17423c1ccced74e3c005fd80486e8177841fe02b
    command: ["/sbin/dhcpcd", "--nobackground", "-f", "/dhcpcd.conf", "-1"]
  - name: metadata
    image: linuxkit/metadata:f5d4299909b159db35f72547e4ae70bd76c42c6c
services:
  - name: rngd
    image: linuxkit/rngd:1516d5d70683a5d925fe475eb1b6164a2f67ac3b
  - name: sshd
    image: linuxkit/sshd:5dc5c3c4470c85f6c89f0e26b9d477ae4ff85a3c
    binds:
     - /var/config/ssh/authorized_keys:/root/.ssh/authorized_keys
trust:
  org:
    - linuxkit
    - library


================================================
FILE: linuxkit-aws/files/assume-role-policy.json
================================================
{
   "Version": "2012-10-17",
   "Statement": [
      {
         "Effect": "Allow",
         "Principal": { "Service": "vmie.amazonaws.com" },
         "Action": "sts:AssumeRole",
         "Condition": {
            "StringEquals":{
               "sts:Externalid": "vmimport"
            }
         }
      }
   ]
}


================================================
FILE: linuxkit-aws/files/policy.tpl
================================================
{
   "Version": "2012-10-17",
   "Statement": [
      {
         "Effect": "Allow",
         "Action": [
            "s3:ListBucket",
            "s3:GetBucketLocation"
         ],
         "Resource": [
            "arn:aws:s3:::${bucket}"
         ]
      },
      {
         "Effect": "Allow",
         "Action": [
            "s3:GetObject"
         ],
         "Resource": [
            "arn:aws:s3:::${bucket}/*"
         ]
      },
      {
         "Effect": "Allow",
         "Action":[
            "ec2:ModifySnapshotAttribute",
            "ec2:CopySnapshot",
            "ec2:RegisterImage",
            "ec2:Describe*"
         ],
         "Resource": "*"
      }
   ]
}


================================================
FILE: linuxkit-aws/main.tf
================================================
provider "aws" {
  region = "us-east-1"
}

data "template_file" "policy" {
  template = "${file("files/policy.tpl")}"
  vars {
    bucket = "${aws_s3_bucket.disk_image_bucket.id}"
  }
}

################## S3 ###################

resource "aws_s3_bucket" "disk_image_bucket" {
  bucket_prefix = "vmimport"
}

################## IAM ##################

resource "aws_iam_role" "vmimport" {
  name               = "vmimport"
  assume_role_policy = "${file("files/assume-role-policy.json")}"
}


resource "aws_iam_role_policy" "import_disk_image" {
  name   = "import_disk_image"
  role   = "${aws_iam_role.vmimport.name}"
  policy = "${data.template_file.policy.rendered}"
}


================================================
FILE: single-ec2-instance/README.md
================================================
<p align="center">
  <img src="http://i1.wp.com/www.blog.labouardy.com/wp-content/uploads/2017/08/terraform.png?w=472">
</p>



================================================
FILE: single-ec2-instance/main.tf
================================================
provider "aws" {
   region = "us-east-1"
}

resource "aws_key_pair" "mysshkey" {
   key_name = "mysshkey"
   public_key = "${file("/home/core/.ssh/id_rsa.pub")}"
}

resource "aws_instance" "node1" {
   ami = "ami-a4c7edb2"
   instance_type = "t2.micro"
   key_name = "mysshkey"

   tags {
     Name = "node1"
   }
}


================================================
FILE: telegraf-influxdb-grafana/bootstrap.sh
================================================
#!/bin/sh
yum update
yum install -y docker curl
service docker start
usermod -aG docker ec2-user
curl -L https://github.com/docker/compose/releases/download/1.15.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose


================================================
FILE: telegraf-influxdb-grafana/main.tf
================================================
provider "aws" {
  region = "${var.region}"
}

resource "aws_security_group" "default"{
  name = "metricssg"

  ingress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port = 0
    to_port = 65535
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

resource "aws_key_pair" "default" {
  key_name = "metricskp"
  public_key = "${file("${var.key_path}/id_rsa.pub")}"
}

resource "aws_instance" "default" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  security_groups = ["${aws_security_group.default.name}"]
  user_data = "${file("${var.bootstrap_script}")}"

  tags {
    Name = "athena"
  }

  provisioner "file" {
    source = "telegraf-influxdb-grafana/"
    destination = "/home/ec2-user/"

    connection {
       type = "ssh"
       user = "ec2-user"
       private_key = "${file("${var.key_path}/id_rsa")}"
    }
  }
}


================================================
FILE: telegraf-influxdb-grafana/variables.tf
================================================
variable "region" {
  description = "AWS Region"
  default = "us-east-1"
}

variable "ami" {
  description = "Amazon Linux Image"
  default = "ami-4fffc834"
}

variable "instance_type" {
  description = "Instance type"
  default = "t2.micro"
}

variable "key_path" {
  description = "SSH key path"
  default = "/home/core/.ssh/"
}

variable "bootstrap_script" {
  description = "Shell script to install docker & compose"
  default = "bootstrap.sh"
}


================================================
FILE: tick-stack-ansible/README.md
================================================
# TICK Stack

* Telegraf
* InfluxDB
* Chronograf
* Kapacitor

<p align="center">
  <img src="logo.png" width="70%"/>
</p>

# How to use

## Terraform

* Update variables.tfvars with your own AWS credentials
* Install AWS plugin:

```
$ terraform init
```

* Create the AWS resources:

```
$ terraform apply -var-file=variables.tfvars
```

## Ansible

* Install Role:

```
$ ansible-galaxy install mlabouardy.tick
```

* Execute playbook:

```
$ ansible-playbook --private-key=aws.pem -i inventory playbook.yml
```


================================================
FILE: tick-stack-ansible/ansible/group_vars/all
================================================
---
remote_user: ubuntu


================================================
FILE: tick-stack-ansible/ansible/inventory
================================================
[servers]


================================================
FILE: tick-stack-ansible/ansible/playbook.yml
================================================
---
- name: Setup TICK Stack
  hosts: servers
  remote_user: "{{remote_user}}"
  become: yes
  become_method: sudo
  roles:
    - mlabouardy.tick


================================================
FILE: tick-stack-ansible/terraform/main.tf
================================================
provider "aws" {
  region = "${var.region}"
  access_key = "${var.access_key}"
  secret_key = "${var.secret_key}"
}


module "tick_sg" {
  source = "github.com/terraform-aws-modules/terraform-aws-security-group"

  name = "${var.sg_name}"
  description = "${var.sg_description}"
  vpc_id = "${var.vpc_id}"

  ingress_with_cidr_blocks = [
    {
      from_port   = 8083
      to_port     = 8083
      protocol    = "tcp"
      description = "InfluxDB admin dashboard"
      cidr_blocks = "0.0.0.0/0"
    },
    {
      from_port   = 8086
      to_port     = 8086
      protocol    = "tcp"
      description = "InfluxDB API"
      cidr_blocks = "0.0.0.0/0"
    },
    {
      from_port   = 8888
      to_port     = 8888
      protocol    = "tcp"
      description = "Chronograf Dashboard"
      cidr_blocks = "0.0.0.0/0"
    },
    {
      from_port   = 22
      to_port     = 22
      protocol    = "tcp"
      description = "SSH access"
      cidr_blocks = "0.0.0.0/0"
    },
  ]

  egress_with_cidr_blocks = [
    {
      from_port   = 0
      to_port     = 65535
      protocol    = "tcp"
      description = "Allow all outbound traffic"
      cidr_blocks = "0.0.0.0/0"
    },
  ]
}

module "tick_stack" {
  source = "github.com/terraform-aws-modules/terraform-aws-ec2-instance"

  name = "${var.hostname}"
  ami = "${var.ami}"

  key_name = "${var.key_name}"
  instance_type = "${var.instance_type}"
  vpc_security_group_ids = ["${module.tick_sg.this_security_group_id}"]

  tags {
    Name = "${var.hostname}"
  }
}


================================================
FILE: tick-stack-ansible/terraform/outputs.tf
================================================
output "instance_public_dns" {
  value = "${module.tick_stack.public_dns[0]}"
}


================================================
FILE: tick-stack-ansible/terraform/variables.tf
================================================
variable "region" {
  description = "AWS Region"
}

variable "access_key" {
  description = "AWS Access Key ID"
}

variable "secret_key" {
  description = "AWS Secret Key"
}

variable "key_name" {
  description = "SSH KeyPair"
}

variable "vpc_id" {
  description = "ID of the VPC where to create security group"
}

variable "hostname" {
  description = "EC2 hostname"
  default = "tick_stack"
}

variable "ami" {
  description = "Ubuntu Server 16.04 LTS"
  default = "ami-da05a4a0"
}

variable "instance_type" {
  description = "EC2 Instance Type"
  default = "t2.micro"
}

variable "sg_name" {
  description = "Security Group name"
  default = "tick_sg"
}

variable "sg_description" {
  description = "SG description"
  default = "Allow InfluxDB, Chronograf & SSH access"
}


================================================
FILE: tick-stack-ansible/terraform/variables.tfvars
================================================
region = "AWS REGION"
access_key = "YOUR AWS ACCESS KEY ID"
secret_key = "YOUR AWS SECRET KEY"
key_name = "YOUR SSH KEY PAIR"
vpc_id = "YOUR VPC ID"


================================================
FILE: vpc-public-private-subnet/README.md
================================================
<p align="center">
  <img src="http://i0.wp.com/www.blog.labouardy.com/wp-content/uploads/2017/08/vpc_tf-1.png?w=462"/>
</p>

How to use in action is shown below:

[![asciicast](https://asciinema.org/a/134951.png)](https://asciinema.org/a/134951)


================================================
FILE: vpc-public-private-subnet/install.sh
================================================
#!/bin/sh
yum install -y httpd
service start httpd
chkonfig httpd on
echo "<html><h1>Hello from mlabouardy ^^</h2></html>" > /var/www/html/index.html


================================================
FILE: vpc-public-private-subnet/provider.tf
================================================
# Define AWS as our provider
provider "aws" {
  region = "${var.aws_region}"
}


================================================
FILE: vpc-public-private-subnet/resources.tf
================================================
# Define SSH key pair for our instances
resource "aws_key_pair" "default" {
  key_name = "vpctestkeypair"
  public_key = "${file("${var.key_path}")}"
}

# Define webserver inside the public subnet
resource "aws_instance" "wb" {
   ami  = "${var.ami}"
   instance_type = "t1.micro"
   key_name = "${aws_key_pair.default.id}"
   subnet_id = "${aws_subnet.public-subnet.id}"
   vpc_security_group_ids = ["${aws_security_group.sgweb.id}"]
   associate_public_ip_address = true
   source_dest_check = false
   user_data = "${file("install.sh")}"

  tags {
    Name = "webserver"
  }
}

# Define database inside the private subnet
resource "aws_instance" "db" {
   ami  = "${var.ami}"
   instance_type = "t1.micro"
   key_name = "${aws_key_pair.default.id}"
   subnet_id = "${aws_subnet.private-subnet.id}"
   vpc_security_group_ids = ["${aws_security_group.sgdb.id}"]
   source_dest_check = false

  tags {
    Name = "database"
  }
}


================================================
FILE: vpc-public-private-subnet/variables.tf
================================================
variable "aws_region" {
  description = "Region for the VPC"
  default = "us-east-1"
}

variable "vpc_cidr" {
  description = "CIDR for the VPC"
  default = "10.0.0.0/16"
}

variable "public_subnet_cidr" {
  description = "CIDR for the public subnet"
  default = "10.0.1.0/24"
}

variable "private_subnet_cidr" {
  description = "CIDR for the private subnet"
  default = "10.0.2.0/24"
}

variable "ami" {
  description = "AMI for EC2"
  default = "ami-4fffc834"
}

variable "key_path" {
  description = "SSH Public Key path"
  default = "/home/core/.ssh/id_rsa.pub"
}


================================================
FILE: vpc-public-private-subnet/vpc.tf
================================================
# Define our VPC
resource "aws_vpc" "default" {
  cidr_block = "${var.vpc_cidr}"
  enable_dns_hostnames = true

  tags {
    Name = "test-vpc"
  }
}

# Define the public subnet
resource "aws_subnet" "public-subnet" {
  vpc_id = "${aws_vpc.default.id}"
  cidr_block = "${var.public_subnet_cidr}"
  availability_zone = "us-east-1a"

  tags {
    Name = "Web Public Subnet"
  }
}

# Define the private subnet
resource "aws_subnet" "private-subnet" {
  vpc_id = "${aws_vpc.default.id}"
  cidr_block = "${var.private_subnet_cidr}"
  availability_zone = "us-east-1b"

  tags {
    Name = "Database Private Subnet"
  }
}

# Define the internet gateway
resource "aws_internet_gateway" "gw" {
  vpc_id = "${aws_vpc.default.id}"

  tags {
    Name = "VPC IGW"
  }
}

# Define the route table
resource "aws_route_table" "web-public-rt" {
  vpc_id = "${aws_vpc.default.id}"

  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = "${aws_internet_gateway.gw.id}"
  }

  tags {
    Name = "Public Subnet RT"
  }
}

# Assign the route table to the public Subnet
resource "aws_route_table_association" "web-public-rt" {
  subnet_id = "${aws_subnet.public-subnet.id}"
  route_table_id = "${aws_route_table.web-public-rt.id}"
}

# Define the security group for public subnet
resource "aws_security_group" "sgweb" {
  name = "vpc_test_web"
  description = "Allow incoming HTTP connections & SSH access"

  ingress {
    from_port = 80
    to_port = 80
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = 443
    to_port = 443
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = 22
    to_port = 22
    protocol = "tcp"
    cidr_blocks =  ["0.0.0.0/0"]
  }

  vpc_id="${aws_vpc.default.id}"

  tags {
    Name = "Web Server SG"
  }
}

# Define the security group for private subnet
resource "aws_security_group" "sgdb"{
  name = "sg_test_web"
  description = "Allow traffic from public subnet"

  ingress {
    from_port = 3306
    to_port = 3306
    protocol = "tcp"
    cidr_blocks = ["${var.public_subnet_cidr}"]
  }

  ingress {
    from_port = -1
    to_port = -1
    protocol = "icmp"
    cidr_blocks = ["${var.public_subnet_cidr}"]
  }

  ingress {
    from_port = 22
    to_port = 22
    protocol = "tcp"
    cidr_blocks = ["${var.public_subnet_cidr}"]
  }

  vpc_id = "${aws_vpc.default.id}"

  tags {
    Name = "DB SG"
  }
}


================================================
FILE: wordpress/.gitignore
================================================
terraform.tfvars


================================================
FILE: wordpress/bootstrap.sh
================================================
#/bin/sh
yum install -y httpd php php-zlib php-iconv php-gd php-mbstring php-fileinfo php-curl php-mysql
chkconfig httpd on
cd /var/www
wget www.wordpress.org/latest.zip
unzip latest.zip
rm latest.zip
mv wordpress/* html/
rm -r wordpress
chown -R apache:apache html/
apachectl start


================================================
FILE: wordpress/main.tf
================================================
provider "aws" {
  region = "${var.region}"
}

resource "aws_vpc" "default" {
  cidr_block = "${var.vpc_cidr_block}"
  enable_dns_hostnames = true

  tags {
    Name = "vpc-blog"
  }
}

resource "aws_subnet" "public-subnet1" {
  cidr_block = "${var.public_subnet1_cidr_block}"
  vpc_id = "${aws_vpc.default.id}"
  availability_zone = "${var.public_subnet1_az}"

  tags {
    Name = "public-subnet-${var.public_subnet1_az}"
  }
}

resource "aws_subnet" "public-subnet2" {
  cidr_block = "${var.public_subnet2_cidr_block}"
  vpc_id = "${aws_vpc.default.id}"
  availability_zone = "${var.public_subnet2_az}"

  tags {
    Name = "public-subnet-${var.public_subnet2_az}"
  }
}

resource "aws_subnet" "private-subnet1" {
  cidr_block = "${var.private_subnet1_cidr_block}"
  vpc_id = "${aws_vpc.default.id}"
  availability_zone = "${var.private_subnet1_az}"

  tags {
    Name = "private-subnet-${var.private_subnet1_az}"
  }
}

resource "aws_subnet" "private-subnet2" {
  cidr_block = "${var.private_subnet2_cidr_block}"
  vpc_id = "${aws_vpc.default.id}"
  availability_zone = "${var.private_subnet2_az}"

  tags {
    Name = "private-subnet-${var.private_subnet2_az}"
  }
}

resource "aws_internet_gateway" "igw" {
  vpc_id = "${aws_vpc.default.id}"

  tags {
    Name = "WP Internet Gateway"
  }
}

resource "aws_route_table" "default" {
  vpc_id = "${aws_vpc.default.id}"

  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = "${aws_internet_gateway.igw.id}"
  }

  tags {
    Name = "Route table for Public subnet"
  }
}

resource "aws_route_table_association" "rt-asso-public-subnet1" {
  subnet_id = "${aws_subnet.public-subnet1.id}"
  route_table_id = "${aws_route_table.default.id}"
}

resource "aws_route_table_association" "rt-asso-public-subnet2" {
  subnet_id = "${aws_subnet.public-subnet2.id}"
  route_table_id = "${aws_route_table.default.id}"
}

resource "aws_security_group" "wpsg" {
  name = "wpsg"
  description = "Allow Incoming HTTP traffic"
  vpc_id = "${aws_vpc.default.id}"

  ingress {
    from_port = 80
    to_port = 80
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    from_port = 22
    to_port = 22
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port = 0
    to_port = 0
    protocol = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }

  tags {
    Name = "blog-security-group"
  }
}

resource "aws_security_group" "elbsg" {
  name = "elbsg"
  description = "Allow Incoming HTTP traffic"
  vpc_id = "${aws_vpc.default.id}"

  ingress {
    from_port = 80
    to_port = 80
    protocol = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    from_port = 0
    to_port = 0
    protocol = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }

  tags {
    Name = "elb-security-group"
  }
}

resource "aws_security_group" "dbsg" {
  name = "dbsg"
  description = "Allow access to MySQL from WP"
  vpc_id = "${aws_vpc.default.id}"

  ingress {
    from_port = 3306
    to_port = 3306
    protocol = "tcp"
    security_groups = ["${aws_security_group.wpsg.id}"]
  }

  tags {
    Name = "db-security-group"
  }
}

resource "aws_key_pair" "default" {
  key_name = "blogkey"
  public_key = "${file("${var.key_path}")}"
}

resource "aws_instance" "wb1" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  user_data = "${file("bootstrap.sh")}"
  vpc_security_group_ids = ["${aws_security_group.wpsg.id}"]
  subnet_id = "${aws_subnet.public-subnet1.id}"
  associate_public_ip_address = true

  tags {
    Name = "wordpress-${var.public_subnet1_az}"
  }
}

resource "aws_instance" "wb2" {
  ami = "${var.ami}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.default.id}"
  user_data = "${file("bootstrap.sh")}"
  vpc_security_group_ids = ["${aws_security_group.wpsg.id}"]
  subnet_id = "${aws_subnet.public-subnet2.id}"
  associate_public_ip_address = true

  tags {
    Name = "wordpress-${var.public_subnet2_az}"
  }
}

resource "aws_db_subnet_group" "default" {
    name = "db-subnet-group"
    description = "RDS Subnet Group"
    subnet_ids = ["${aws_subnet.private-subnet1.id}", "${aws_subnet.private-subnet2.id}"]

    tags {
      Name = "DB Subnet Group"
    }
}

resource "aws_db_instance" "default" {
  name = "${var.db_name}"
  engine = "${var.engine}"
  engine_version = "5.6.35"
  storage_type = "gp2"
  allocated_storage = 5
  instance_class = "db.t2.micro"
  username = "${var.db_username}"
  password = "${var.db_password}"
  vpc_security_group_ids = ["${aws_security_group.dbsg.id}"]
  db_subnet_group_name = "${aws_db_subnet_group.default.id}"
}

resource "aws_elb" "default" {
  name = "elbwp"
  instances = ["${aws_instance.wb1.id}", "${aws_instance.wb2.id}"]
  subnets = ["${aws_subnet.public-subnet1.id}", "${aws_subnet.public-subnet2.id}"]
  security_groups = ["${aws_security_group.elbsg.id}"]
  cross_zone_load_balancing   = true
  idle_timeout                = 400
  connection_draining         = true
  connection_draining_timeout = 400

  listener {
    instance_port = 80
    instance_protocol = "tcp"
    lb_port = 80
    lb_protocol = "tcp"
  }

  health_check {
    healthy_threshold = 2
    unhealthy_threshold = 2
    timeout = 3
    target = "HTTP:80/"
    interval = 30
  }
}


================================================
FILE: wordpress/outputs.tf
================================================
output "ELB_DNS" {
  value = "${aws_elb.default.dns_name}"
}

output "Blog_DNS" {
  value = "${aws_instance.default.public_dns}"
}

output "MYSQL_DNS" {
  value = "${aws_db_instance.default.dns_name}"
}


================================================
FILE: wordpress/variables.tf
================================================
variable "region" {
  description = "VPC Region"
  default = "us-east-1"
}

variable "vpc_cidr_block" {
  description = "VPC CIDR"
  default = "10.0.0.0/16"
}

variable "public_subnet1_cidr_block" {
  description = "Public Subnet 1 CIDR"
  default = "10.0.1.0/24"
}

variable "public_subnet2_cidr_block" {
  description = "Public Subnet 2 CIDR"
  default = "10.0.2.0/24"
}

variable "private_subnet1_cidr_block" {
  description = "Private Subnet 1 CIDR"
  default = "10.0.3.0/24"
}

variable "private_subnet2_cidr_block" {
  description = "Private Subnet 2 CIDR"
  default = "10.0.4.0/24"
}

variable "public_subnet1_az" {
  description = "Public Subnet 1 Availability Zone"
  default = "us-east-1a"
}

variable "public_subnet1_az" {
  description = "Public Subnet 2 Availability Zone"
  default = "us-east-1b"
}


variable "private_subnet1_az" {
  description = "Private Subnet 1 Availability Zone"
  default = "us-east-1c"
}

variable "private_subnet2_az" {
  description = "Private Subnet 2 Availability Zone"
  default = "us-east-1d"
}

variable "key_path" {
  description = "Public Key path"
}

variable "ami" {
  description = "Amazon Linux Image"
  default = "ami-4fffc834"
}

variable "instance_type" {
  description = "Server Instance Type"
  default = "t2.micro"
}

variable "engine" {
  description = "RDS Engine"
  default = "mysql"
}

variable "db_name" {
  description = "Database Name"
  default = "mydb"
}

variable "db_username" {
  description = "Database Username"
}

variable "db_password" {
  description = "Database Password"
}