LambdaFunc-rds-alert

Golang Lambda Function for sending RDS Metrics to Slack, The Flow as below :

Steps :

• Create the RDS instance :

aws rds create-db-instance \
    --db-instance-identifier $INSTANCE_NAME \
    --db-instance-class $CLASS_NAME \
    --engine mysql \
    --master-username $USER_NAME \
    --master-user-password $PASSWORD \
    --allocated-storage 50

• Create the SNS topic :

aws sns create-topic --name rds
aws sns subscribe --topic-arn $TOPIC_ARN --protocol lambda --notification-endpoint $LAMBDA_ARN

• Create the CloudWatch Alarm :

aws cloudwatch put-metric-alarm --alarm-name "HighCPUUtilization"  --alarm-description "High CPU Utilization" \
--actions-enabled  \
--alarm-actions "$ROLE_ARN"  \
--metric-name "CPUUtilization"  \
--namespace AWS/RDS --statistic "Average" \
--period 60  \
--evaluation-periods 60  \
--threshold 70  \
--comparison-operator "GreaterThanOrEqualToThreshold"

• Build it :

go build -o main main.go
zip deployment.zip main

• Create the Lambda Function :

aws lambda create-function --function-name rds-slack \
--zip-file fileb://./deployment.zip \
--runtime go1.x --handler main \
--role $ROLE_ARN \
--environment Variables={SLACK_WEBHOOK=""}