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README.md

nightly-shutdown

Nightly shutdown tool for AWS EC2 cost-control

Why

When you've got lots of people working on the same AWS capacity, it's easy for somebody to forget to spin down their instances when they're not in use. This tool stops, but does not terminate, any instances in EC2 whose instance-id is not in the whitelist in nightly-shutdown.yml.

How to use it

Run the following commands as root.

  1. Ensure boto is installed.

    yum install -y python-pip
    pip install boto
  2. Clone this repo

    git clone https://github.com/jason-callaway/nightly-shutdown
  3. Put the nightly-shutdown.yml config file in /etc. Don't forget to change mode and ownership to root-only to protect your access and secret keys.

    cp nightly-shutdown/nightly-shutdown.yml /etc
    chown root:root /etc/nightly-shutdown.yml
    chmod 600 /etc/nightly-shutdown.yml
  4. Add your access and secret keys to the config file. White list any instances you'd like to opt-out of the nightly shutdown.

    region: us-east-1
    access_key: eggseggseggseggs
    secret_key: spamspamspamspam
    whitelist:
      - i-abcdefgh
      - i-ijklmnop
  5. Copy the utility to cron.daily.

    cp nightly-shutdown/nightly-shutdown.py /etc/cron.daily/nightly-shutdown
    chmod 755 /etc/cron.daily/nightly-shutdown

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Nightly shutdown tool for AWS EC2 cost-control

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