This samlpe automation pack contains sensors actions and rules for auto-scaling Docker Swarm cluster based on container load.
- Watch this video to see it in action: https://youtu.be/2tQlfxRrtXo
- Read a blog for details: (To Be Published)
# Install this pack
st2 pack install https://github.com/dzimine/swarm_scaling
# You will also need AWS pack, too
st2 pack install aws
Give StackStorm system users - stanley and st2 - access to the Docker group usermod -a -G docker st2.
Create a count key in the data store:
st2 key set asg.workers 2
TODO: update a rule once this st2 bug fixed, to increment/decrement workers count.
To run the pack's unit tests:
# Activate existing pack's virtual environmet
source /opt/stackstorm/virtualenvs/swarm/bin/activate
# Run the tests first time - it will install test dependencies
st2-run-pack-tests -x /opt/stackstorm/swarm
# Skip installing dependencies on subsequent runs
st2-run-pack-tests -x -j /opt/stackstorm/swarm