v0.4.3.1-alpha

Changes

• Configuration file: the docker-compose scaler is renamed docker-compose-cmd to differentiate the python cli client and the yet-to-come golang implementation (see libcompose)
• Scaler: fix a bug where docker-compose would not scale up if upper_count_limit was set to 0 (unlimited)
• Tests: fix cmd package testing, examples where parsed incorrectly

Docker

An image is now available on the docker hub! You can retrieve it by running:

$ docker pull zenika/zscaler:latest

v0.4.2-alpha

Changelog

Fix

• add project parameter as a workaround for docker-compose in containers

API

• adding cmd.execute probes is forbidden for security concern. If you need it, you can start zscaler with --allow-cmd-probe
• listening port can be configured using --api-port or -l

Security

• TLS parameters in configuration file
• docker-compose support TLS, keys and certs must be properly named
• swarm.average_cpu probe support TLS
• docker-service support TLS
• makefile available to generate test certificates

Logs

• Add vars in some log messages

Tests & doc

• Wiki is up to date
• All configuration files under examples/ are now parsed for errors
• CircleCI build every branch
• Clean gometalinter

v0.4.1-alpha

Changelog

• Fix hap probe hard linked socket path
• Elevate probe check fail from warning to error
• API: fix rule map collision check

Build

• Docker zscaler can now be built inside docker with make docker. This will also build a docker image with docker-compose. See Dockerfile and build.Dockerfile.
• Vendors Managed using glide.
• Testing API is now tested with a code coverage of ~70%. See make unit_test.

Doc

Github wiki is up to date! 😄

v0.4-alpha

Additional features

• Create scalers and rules (see README for examples)
• API throws http.StatusNotImplemented instead of http.StatusNotAllowed

Dev

• More tests
• Fix a typo in Makefile

v0.3-alpha

Additional features

• REST API (see README for details)
• zscaler version command
• Prometheus probe
  • Prometheus http text format
  • Use prom.http with url: and key: indicators in configuration file

Code

Lots of cleanup, clean error management.

v0.2-alpha

Additional features

• Docker 1.12 swarm mode service support
  • Scaler type: "docker-service"
  • Need service: "serviceID" parameter
• Command probe cmd.execute
  • Any binary returning a parsable float64 to stdout can be used as probe (including scripts)
• More examples !

Builds

Builds are currently provided only for x86_64 linux.

v0.1-alpha

This is a prototype version. See README file for setup & configuration details.

Features

• Log output with levels and optional JSON formatting
• Scale services using docker-compose files
• Can report metrics from:
  • HAproxy (many available, including response time)
  • Average cpu used across all containers running a service (docker-specific)