vote-processor

Vote Processor

Vote Processor must be running on EC2 facilities. Choose one of the options:

• Separate EC2 Instance
• Launch Template + Target Group
• Autoscaling Group (on-demand)
• Autoscaling Group (spot/on-demand)

Please note that in the 11th and 12th lines of the handler, you must specify the correct SQS queue and DynamoDB table.

Recommended configuration

*Amazon Linux 2 *T2.Micro

Local Run

python -m pip install --user boto3
chmod +x processor.py
./processor.py

Run on EC2 instance (User Data)

#!/bin/bash
echo "---------------------------------------------
echo "this script was run on" $(date +"%T")
echo "---------------------------------------------
curl https://raw.githubusercontent.com/erjan/MyVoteAWS/main/vote-processor/processor.py > /home/ec2-user/processor.py
cd /home/ec2-user/
sudo chmod +x processor.py
sudo yum -y install python3-pip
sudo yum -y install python3 python3-setuptools
sudo pip3 install boto3 
sudo python3 processor.py

Policy for SQS

{
     "Version": "2012-10-17",
     "Statement": [
         {
             "Effect": "Allow",
             "Action": [
                 "sqs:GetQueueUrl",
                 "sqs:ReceiveMessage",
                 "sqs:DeleteMessage"
             ],
             "Resource": "arn:aws:sqs:*:ACCOUNT:QUEUENAME"
         }
     ]
}

Policy for DynamoDB

{
     "Version": "2012-10-17",
     "Statement": [
         {
             "Effect": "Allow",
             "Action": [
                 "dynamodb:PutItem",
                 "dynamodb:UpdateItem"
             ],
             "Resource": "arn:aws:dynamodb:*:ACCOUNT:table/TABLENAME"
         }
     ]
}