This is a sample "script" to schedule start and stop Amazon EC2 instances based on a date time range, i.e. start at 6AM and stop at 12AM.
Have a look at AWS Calculator to see how much you can save by stopping unsed instances from 12AM to 6AM (save 25%) or other date time ranges.
$ git clone git@github.com:austra/amazon_start_stop.git
$ cd amazon_start_stop
- Create a Heroku account if don't have one and install the Heroku Toolbelt.
- Create a new app.
$ heroku apps:create
$ git push heroku master
Configure your app settings using Heroku config vars.
Get your AWS credentials here: AWS Credentials.
Rename .env.sample
to .env
or Create a file named .env
and add the following, customized to your needs:
# .env
AWS_ACCESS_KEY_ID=""
AWS_SECRET_ACCESS_KEY=""
# Leave blank if you don't need to associate an Elastic IP
# (everytime you stop an instance Amazon dissociates Elastic IPs)
AWS_ELASTIC_IP=""
# The instance id to start and stop i.e. i-1a1aa111
AWS_INSTANCE_ID=""
AWS_REGION="us-west-2"
LANG="en_US.UTF-8"
START_TIME="9:45pm"
STOP_TIME="10:45pm"
TIMEZONE="America/Denver"
Run the following to create the Herkou Environment Variables from your .env
file.
$ heroku plugins:install git://github.com/ddollar/heroku-config.git
$ heroku config:push
Add and configure Heroku Scheduler add-on standard (free add-on).
$ heroku addons:add scheduler:standard
$ heroku addons:open scheduler
In the Scheduler Dashboard add a new Scheduler.
TASK | DYNO SIZE | FREQUENCY |
---|---|---|
bin/amazon_start_stop | 1x | Every 10 minutes |
In production.
$ heroku run bundle exec ruby bin/amazon_start_stop
# to check the script output
$ heroku logs
In development.
$ foreman start