Decrease Mode and customize rules

What's Changed

• Decrease Mode and customize rules by @AMEST in #2

Full Changelog: v0.2.3...v0.3.0

Fix when no running tasks in service

Full Changelog: v0.2.2...v0.2.3

Fix getting container id's only for running containers

Full Changelog: v0.2.1...v0.2.2

Fix getting leader status

Fix getting leader status when managers count more then 1

Optimizations and Improvements

What's Changed

Optimizations

• Move autoscaler code to own class extends threading.Thread
• Added thread pool for run calculating service cpu utilization in own thread.
• Added thread pool for discovery
• Added caching for: resolve cluster ip and node count inside calculate method
• Added disable manual replicas mode for service

Fixes

• Settings names in ReadMe
• Logging levels for third party libs
• Own loggers inside classes

Full Changelog: v0.1.0...v0.2.0

Minimum working version of the application

Minimum working version of the Swarm Services Autoscaler application

Implemented:

• Automatically increase and decrease the number of service instances based on the average cpu of service instances
• Limits for the minimum and maximum number of service instances
• Independent calculation of cpu utilization by all instances of the service (without being tied to external data sources (cadvisor / telegraf + prometneus)
• Configurable cpu utilization limit at which there is a decrease in the number of replicas or their increase
• Configurable check interval
• Small documentation in README.md
• Example docker-compose file for application deployment