aws

EC2

• filter search

Below will find "web1", "web41", "web444" instances which have that tag "Name".

tag:Name : ^web[0-9]*

CloudWatch

• decrypt CloudWatch Logs Message Event
  • https://docs.aws.amazon.com/lambda/latest/dg/services-cloudwatchlogs.html
  • cat event.json | jq -r .awslogs.data | base64 -D | gzip -d | jq .

scripts

• get specific EIP's Name

ips=(
xx.xx.xx.xx
yy.yy.yy.yy
)

for ip in ${ips[@]}
do
echo -ne "$ip\t"
echo $(aws ec2 describe-addresses --filters "Name=public-ip,Values=${ip}" | jq '.Addresses[].Tags[] | select(."Key" == "Name").Value  ')
done