sh AWS EC2自动恢复

Posted 2021-05-07

#!/bin/bash

if [ $# -ne 2 ]; then
    echo "Usage: $0 [AlarmBaseName] [Region]"
    echo "Region: ap-northeast-1 ap-southeast-1 ap-southeast-2 eu-central-1 eu-west-1 sa-east-1 us-east-1 us-west-1 us-west-2"
    exit
fi

ALARM_BASE_NAME=$1
METRIC_NAME=StatusCheckFailed_System
NAMESPACE=AWS/EC2
STATISTIC=Maximum
PERIOD=60
EVALUATION_PERIODS=1
THRESHOLD=1
COMPARISON_OPERATOR=GreaterThanOrEqualToThreshold
ALARM_ACTIONS=arn:aws:automate:$2:ec2:recover
#PROFILE="--profile profname"


for INSTANCE_ID in $(aws ec2 $PROFILE describe-instances | jq -r '.Reservations[].Instances[].InstanceId');
do
    NODE_NAME=$(aws ec2 $PROFILE describe-tags --filters "Name=resource-id,Values=${INSTANCE_ID}" "Name=key,Values=Name" --query "Tags[*].Value" --output text)
    aws cloudwatch put-metric-alarm \
        --alarm-name $ALARM_BASE_NAME-$NODE_NAME \
        --alarm-actions $ALARM_ACTIONS \
        --metric-name $METRIC_NAME \
        --namespace $NAMESPACE \
        --dimensions Name=InstanceId,Value=$INSTANCE_ID \
        --statistic $STATISTIC  \
        --period $PERIOD \
        --evaluation-periods $EVALUATION_PERIODS \
        --threshold $THRESHOLD \
        --comparison-operator $COMPARISON_OPERATOR
    if [ $? != 0 ]; then
        echo "Failed!: ${NODE_NAME}"
    fi
done