Setup ec2 for sending info to cloudwatch

cw-ec2:setup.sh

#!/usr/bin/env bash

# Setup for gathering metrices, debian based

required_env='AWS_REGION, MONITOR_DISKS, MACHINE_NAME';

function checkEnv() {
  echo "Checking $1"
  local val=$(env | grep "$1")
  echo $val
  if [ -z "$val" ]; then
    echo "These env variables are required: $required_env"
    exit 1
  fi
}

# check if all environment variables are present
checkEnv AWS_REGION
checkEnv MONITOR_DISKS
checkEnv MACHINE_NAME

# Install pip3
sudo apt-get update
sudo apt-get install python3-pip

# Configure aws
echo "Creating aws directory"
mkdir ~/.aws
echo "Adding aws config file"
echo "[default]
region = ${AWS_REGION}" > ~/.aws/config

# Install pip3 stuff
pip3 install --user redis boto3

# Add machine names and other exportable variable
cp ~/.zshrc ~/.zshrc.bkp
echo "export MACHINE_NAME=$MACHINE_NAME" >> ~/.zshrc
echo "export AWS_REGION=$AWS_REGION" >> ~/.zshrc

# sourcing it all
source ~/.zshrc