README.md

Infrastructure

Install the infrastructure on EC2

Install Ansible

(On OSX for instance...)

sudo easy_install pip
sudo pip install --upgrade pip
sudo -H pip install --upgrade boto
sudo -H pip install --upgrade ansible

Configure your AWS Credentials

export ANSIBLE_HOST_KEY_CHECKING=False
export EC2_REGION=eu-west-1

export AWS_ACCESS_KEY=...
export AWS_SECRET_KEY=...
export AWS_ACCESS_KEY_ID=$AWS_ACCESS_KEY
export AWS_SECRET_ACCESS_KEY=$AWS_SECRET_KEY

Configure your EC2 pem file

export PEM_NAME=<aws_pem_name>
export PEM_PATH=~/.ssh/<aws_pem_name>.pem

Configure your Default VPC

Ansible can create ASG only inside the Default VPC :(

export VPC_ID=<vpc_id>
export SUBNET_ID=<public_subnet_id>

Configure EC2 instances tags

export CLIENT=company
export STAGE=dev

Create IAM Policy for Elasticsearch AWS EC2 plugin

{
    "Statement": [
        {
            "Action": [
                "ec2:DescribeInstances"
            ],
            "Effect": "Allow",
            "Resource": [
                "*"
            ]
        }
    ],
    "Version": "2012-10-17"
}

Configure Elasticsearch AWS EC2 plugin

export ES_DISCOVERY_AWS_REGION=eu-west
export ES_DISCOVERY_AWS_ACCESS_KEY=...
export ES_DISCOVERY_AWS_SECRET_KEY=...

Create EC2 Infra

ansible-playbook -i inventory/ec2.py playbooks/create-ec2.yml

Configure EC2 instance

ansible-playbook -i inventory/ec2.py playbooks/elasticsearch.yml

Create EC2 AMI

ansible-playbook -i inventory/ec2.py playbooks/create-ami.yml
export AMI_ID=<created_ami_id>

Configure EC2 ELB + LC + ASG

ansible-playbook -i inventory/ec2.py playbooks/create-asg.yml

Demo

For demo, configure the following:

ELB with:

• Timeout: 2
• Interval: 5
• (Un)healthy Threshold: 2

Autoscaling Group with:

• Default Cooldown: 5

• Health Check Grace Period: 0

  export ELB=http://<elb_cname>:9200 curl $ELB/comics/hero -d '{ "name" : "Batman" }' curl -X PUT $ELB/comics/_settings -d '{ "number_of_replicas": 2 }'