2016-04-22 14:02:53 +00:00
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## Usage
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### Configuration
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kapacitor.toml:
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```
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[udf]
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[udf.functions]
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[udf.functions.scale]
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socket = "/tmp/kapacitor-scale.sock"
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timeout = "10s"
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```
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then start kapacitor-scale like this:
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```
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$ kapacitor-scale -
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```
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### Example
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```
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stream...
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.scale()
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.id('rancherServiceId')
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.when('value > 10')
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.by('current + 1')
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.min_instances(2)
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.max_instances(10)
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.cooldown('1m')
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```
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#### Options
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- id: Id of the rancher service to scale
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- when: expression, should evaluate to true
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(see https://github.com/pk-rawat/gostr)
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- by: expression, should evaluate to a number
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(see https://github.com/pk-rawat/gostr)
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- max\_instances: maximum instances to scale out
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- max\_instances: minimum instances to scale in
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- cooldown: timeout to wait until next scaling action
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2016-04-19 15:18:03 +00:00
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## Tests
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$ go test ./handler
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2016-04-15 14:54:12 +00:00
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## TODO
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- start cooldown timer, when service was actually scaled up
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- do not freak out, when rancher service is not available
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- (free up unneeded services, when removed from rancher)
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2016-04-22 14:02:53 +00:00
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- procname contains rancher url with credentials! (change argv)
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