TechTestApp

Summary

This respository consists of multiple tech stacks

• Terraform - Builds AWS instances/resources
• S3/DynamoDB - Holds remote state file/lock
• Packer - Builds the AMI for Terraform to deploy to EC2
• Docker Composer - Spawns 2 docker containers on the EC2
• Nginx web server - Proxy for the app
• Go lang container - Builds and runs the app

Features

• Encryption for S3/DynamoDB/AMI/EBS
• Auto scaling app instances
• Tables arent dropped when new slaves spin up
• App builds itself from source upon launch in container
• Remote state file and lock on AWS

Requirements

• Terraform 0.12+
• Packer 1.4+
• Packer plugin: packer-post-processor-amazon-ami-management 0.7.0+
• Git
• Suggested OS: Linux/Mac OSX

Install Terraform/Packer with Brew (For Mac OSX):

• brew install terraform
• brew install packer

Installation

1. Clone repository:

$ git clone https://github.com/dansali/TechTestApp.git

2. Modify config.tfvars

3. Add AWS credentials into secrets/credentials.ini

4. Generate new keys

$ chmod +x generate_keys.sh
$ ./generate_keys.sh

5. Generate new AMI's

$ chmod +x packer.sh
$ ./packer.sh

6. Execute terraform script

$ chmod +x execute_terraform.sh
$ ./execute_terraform.sh

7. Wait until LB url is printed, app & rds might take a few minutes to boot

8. To destroy

$ chmod +x destroy_terraform.sh
$ ./destroy_terraform.sh

Developed on

• Terraform v0.12.17
• Packer 1.4.5
• Packer plugin: packer-post-processor-amazon-ami-management 0.7.0

Built on

• https://github.com/servian/TechTestApp
• https://github.com/wata727/packer-post-processor-amazon-ami-management