This shell script gets a list of all running EC2 instances and updates local hosts file with new IP addresses. The list contains the Name tag and IP address for each running EC2 instance.
This script requires AWS CLI v2 to be installed on the system (https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html).
This script expects MFA to be enabled for current IAM account.
This script also requires user to setup new AWS CLI profile named mfa (https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-profiles.html).
- Install AWS CLI v2. Follow this guide https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html.
- Create new named profile mfa. Follow this guide https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-profiles.html.
- Clone this repo and copy
ec2-hosts-update.shto a directory that is included in the PATH (so it can be invoked from anywhere).
Run the script and follow the interactive prompt for the first run. All subsequent runs will not have any interactive prompts (unless certain flags are used).