This tool is designed to spin up about $10 of AWS IOT greegrass usage

Each unique Greangrass core costs $0.16/mo. Once a greengrass core device connects to a core, one month of usage is charged

$10 / $0.16 = 62.5 required cores in a month, the first 3 land in free tier. To be safe we'll create 70 cores and connections

This script will loop 70 times, each time it will: 1. use greengo to create a new greengrass group, core, policy, lambda etc. 2. use vagrant to spin up an ubuntu VM that emulates a greengrass device 3. use greengo to deploy the lambda to the virtual greengrass device 4. use greengo to delete the group/core/lambda etc 5. destroy the vagrant vm

Requirements

• Linux or mac system (loop.sh is a bash script)
• Python2.7, virtualenv and pip (for greengrass sdk & greengo tool)
• virtualbox and vagrant (to emulate a greengrass core)
• git (to pull down this & greengo repos)
• greengo and boto3 python modules (to build the groups & cores in AWS)

Setup

# Install OS requirements on Ubuntu
sudo apt-get install -y python2.7 python-pip git virtualbox

# Install vagrant
wget https://releases.hashicorp.com/vagrant/2.2.2/vagrant_2.2.2_linux_amd64.zip
unzip vagrant_*_linux_amd64.zip
sudo mv vagrant /usr/local/bin
rm vagrant_*_linux_amd64.zip

# clone this project
git clone [email protected]:peterb154/aws_iot_goal.git
cd aws_iot_goal

# Make sure that we have an IAM role for greengrass to use
export AWS_PROFILE=xxx
export AWS_DEFAULT_REGION=us-east-1
./create_role.sh

# Install required python modules	
virtualenv venv
. venv/bin/activate
pip install -r requirements.txt

Run the loop

export AWS_PROFILE=xxx
#if not resuming previous loop:
rm ~/tmp/count.txt
./loop.sh
deactivate # the virtual environment

Check the cost (may take 24 hours to show up)

# Install cloudshift's AWS cost tool
cd ~/
git clone [email protected]:cloudshiftstrategies/aws_cost.git
cd aws_cost

# Install requirments
python3 -m venv venv
. venv/bin/activate
pip install -r requirements.txt

# Check the usage of greenreass and iot
export AWS_PROFILE=xxx
aws_cost -s "AWS Greengrass,AWS IoT"