The fetch-rewards-coding-exercise from apurvah

fetch-rewards-coding-exercise's Introduction

Description

This submission consists of a deployer script that deploys instances in AWS using a YAML specification.

Implementation Notes:

Deployer script reuses user scoped credentials stored in ~/.aws/credentials via boto3
Default VPC and Security group should allow inbound traffic on port 22
jsonschema is used to validate the YAML structure

Steps to Run Locally

Install Dependencies

user@user-MacBook-Pro fetch % pip3 install -r requirements.txt
user@user-MacBook-Pro fetch % pip3 install awscli

AWS Configure

user@user-MacBook-Pro fetch % aws configure
AWS Access Key ID [****************ABCD]: KEY-HERE
AWS Secret Access Key [****************ABCD]: KEY-HERE
Default region name [us-west-2]:
Default output format [None]:

Sample Deployment Specification:

---
server:
  instance_type: t2.nano
  ami_type: amzn2-ami-hvm
  architecture: x86_64
  root_device_type: ebs
  virtualization_type: hvm
  min_count: 1
  max_count: 1
  volumes:
    - device: /dev/xvda
      size_gb: 40
      type: ext4
      mount: /
    - device: /dev/xvdf
      size_gb: 40
      type: xfs
      mount: /data
  users:
    - login: ec2-user
      ssh_key: # add public key here
    - login: my-test-user
      ssh_key: # add public key here

Running the Deployer

Usage:

user@user-MacBook-Pro fetch % python3 deployer.py
Usage: python3 deployer.py /path/to/file.yaml

user@user-MacBook-Pro fetch % python3 deployer.py spec.yaml  
INFO:botocore.utils:IMDS ENDPOINT: http://169.254.169.254/
INFO:botocore.credentials:Found credentials in shared credentials file: ~/.aws/credentials
INFO:root:Creating Instances with Deployer Tag deployer-2020-10-23T20:29:58.868030
INFO:root:Will create 2 block devices
INFO:root:Lunching Instances
user@user-MacBook-Pro fetch %