EGL AWS Autoscaling Suspend / Resume Utility

This utility suspends or resumes AWS Autoscaling groups.

This utility provides Autoscaling suspend/resume functionality unavailable in the AWS console or directly via the AWS CLI API.

This utility can:

• Suspend or resume one Autoscaling Group
• Suspend or resume a set of like-named Autoscaling Groups
• Suspend or resume all Autoscaling Groups

This utility produces a summary report listing the suspended/resumed Autoscaling Groups.

Getting Started

1. Instantiate a local or EC2 Linux instance
2. Install or update the AWS CLI utilities
   • The AWS CLI utilities are pre-installed on AWS EC2 Linux instances
   • To update on an AWS EC2 instance: $ sudo pip install --upgrade awscli
3. Create an AWS CLI named profile that includes the required IAM permissions
   • See the "Prerequisites" section for the required IAM permissions
   • To create an AWS CLI named profile: $ aws configure --profile MyProfileName
   • AWS CLI named profile documentation is here: Named Profiles
4. Install the bash shell
   • The bash shell is included in most distributions and is pre-installed on AWS EC2 Linux instances
5. Install jq
   • To install jq on AWS EC2: $ sudo yum install jq -y
6. Download this utility script or create a local copy and run it on the local or EC2 Linux instance
   • Example: $ bash ./aws-asg-suspend-resume.sh -a s -n all -p MyProfileName

Prerequisites

• bash - Linux shell
• jq - JSON wrangler
• AWS CLI - command line utilities (pre-installed on AWS AMIs)
• AWS CLI profile with IAM permissions for the following AWS CLI commands:
  • autoscaling describe-auto-scaling-groups
  • autoscaling suspend-processes
  • autoscaling resume-processes
  • sts get-caller-identity (used to pull the AWS account number for the report)

Deployment

To execute the utility:

• Example: $ bash ./aws-asg-suspend-resume.sh

To directly execute the utility:

1. Set the execute flag: $ chmod +x aws-asg-suspend-resume.sh
2. Execute the utility
   • Example: $ ./aws-asg-suspend-resume.sh -a s -n all -p MyProfileName

Output

• Summary report
• Debug log (execute with the -g y parameter)
  • Example: $ bash ./aws-asg-suspend-resume.sh -a s -n all -p MyProfileName -g y
• Console verbose mode (execute with the -b y parameter)
  • Example: $ bash ./aws-asg-suspend-resume.sh -a s -n all -p MyProfileName -b y

Contributing

Please read CONTRIBUTING.md for the process for submitting pull requests to us.

Versioning

We use SemVer for versioning.

Authors

• Douglas Hackney - dhackney

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

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• Countless other jq and bash/shell man pages, Q&A, posts, examples, tutorials, etc. from various sources