cloud engineer
This command lists the EC2 instance id and the tag name using query.
aws ec2 describe-instances \ --query 'Reservations[].Instances[].[InstanceId,Tags[?Key==Name]|[0].Value]' \ --profile tfc \ --region us-east-2 \ --output text |
aws ec2 describe-instances \ --query 'Reservations[].Instances[].[InstanceId,Tags[?Key==Name]|[0].Value]' \ --profile tfc \ --region us-east-2 \ --output text
Output:
i-xxxxxxxxxxxxxxxxx server-one i-xxxxxxxxxxxxxxxxx server-two i-xxxxxxxxxxxxxxxxx server-three |
i-xxxxxxxxxxxxxxxxx server-one i-xxxxxxxxxxxxxxxxx server-two i-xxxxxxxxxxxxxxxxx server-three
|[0].Value insures output is one instance record per line.
How to display IP address and Instance ID on web page behind a AWS load balancer.
Add these 2 commands in crontab. The job runs every 5 mins.
*/5 * * * * /usr/bin/curl http://169.254.169.254/latest/meta-data/instance-id > /var/www/html/id.txt */5 * * * * /usr/bin/curl http://169.254.169.254/latest/meta-data/public-ipv4 > /var/www/html/ip.txt |
*/5 * * * * /usr/bin/curl http://169.254.169.254/latest/meta-data/instance-id > /var/www/html/id.txt */5 * * * * /usr/bin/curl http://169.254.169.254/latest/meta-data/public-ipv4 > /var/www/html/ip.txt
You can view on the site.
# your domain http://yourdomain.com/ip.txt http://yourdomain.com/id.txt # your server ip address http://1.1.1.1/ip.txt http://1.1.1.1/id.txt |
# your domain http://yourdomain.com/ip.txt http://yourdomain.com/id.txt # your server ip address http://1.1.1.1/ip.txt http://1.1.1.1/id.txt
If you have the instance id, you can print out the details like this:
aws ec2 describe-instances --instance-ids i-xxxxxxxxxxxxx \ --region us-east-1 --profile default |
aws ec2 describe-instances --instance-ids i-xxxxxxxxxxxxx \ --region us-east-1 --profile default