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Best Songs (Dynamic)

Project extends Best Songs (Static) to demonstrate using Ansible to:

  • Create AWS Security Groups
  • Create RDS instance, database and import sample data
  • Launch, Start, Stop and Terminate EC2 instances
  • Use dynamic inventory to
    • Configure EC2 instances as web server and application server
    • Deploy sample web application queries the RDS database and displays a random song from list of 100 songs

Prerequisites

  • AWS Account
  • AWS IAM Role with Access Keys and appropriate policies attached
  • Amazon EC2 Key Pairs

Running this project

Open terminal window and run the following commands

Install Python3 and required packages on Ubuntu Linux

sudo apt-get update
sudo apt-get install python3 python3-dev python3-pip libmysqlclient-dev mysql-client libssl-dev
pip3 install --upgrade pip

Cloning this project from github

git clone https://github.com/skipluck/bestsongs-dynamic

Creating Ansible Project Virtual Environment

cd bestsongs-dynamic
python3 -m venv BestSongs
source BestSongs/bin/activate

Installing Ansible and other packages

pip3 install ansible boto boto3 "pywinrm>=0.3.0" mysqlclient

Change permission for AWS Dynamic Inventory files

chmod +x ec2.py

Set environment variables

export AWS_ACCESS_KEY_ID='AK123'
export AWS_SECRET_ACCESS_KEY='abc123'
export ANSIBLE_NOCOWS=1
export ANSIBLE_HOST_KEY_CHECKING=false
export ANSIBLE_INVENTORY=`pwd`/ec2.py
export EC2_INI_PATH=`pwd`/ec2.ini

Running playbooks

Create EC2 Security Groups

ansible-playbook -i localhost create_security_group.yml

Create RDS instance, database and import sample data

ansible-playbook -i localhost create_rds.yml

Create EC2 instances

ansible-playbook -i localhost create_ec2_instances.yml

Above 3 playbooks can be run at once by

ansible-playbook -i localhost create_env.yml

Note: Currently there is a bug in boto RDS module that returns TypeError and can be fixed by body = response.read().decode('utf-8') in rds2/layer1.py. See boto/boto#2677.

Deploying application

ansible-playbook -u ubuntu deploy_app.yml

Exiting Virtual Environment

deactivate