Phase 0 | Initial Detection with CloudWatch Alarms

evereven_AWS_CW_put-metric-alarm.sh

# A vantablack friday: How to be prepared to stop DDoS Attacks after Halloween
# https://blog.evereven.tech

# Create a cloudwatch alarm
aws cloudwatch put-metric-alarm \
   --alarm-name High-CPU-Utilization \
   --metric-name CPUUtilization \
   --namespace AWS/EC2 \
   --period 300 \
   --evaluation-periods 1 \
   --threshold 70.0 \
   --comparison-operator GreaterThanThreshold \
   --statistic Average
   
   # Visible at
   # https://us-west-2.console.aws.amazon.com/cloudwatch/home?region=us-west-2#alarmsV2: