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tumblr / collins

groovy kind of love
tumblr.github.com/collins
Apache License 2.0
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Need documentation for how to link a VIP with a SERVER_NODE #552

Closed MadelineRitchie closed 7 years ago

MadelineRitchie commented 7 years ago

The Concepts page states the following:

You can create a configuration asset that holds the VIP for a service, then link that asset to others that will actually share the address.

I cannot find instructions or examples showing how to do this.

byxorna commented 7 years ago

@JasonRitchie the link is a logical one, not an actual link in collins. Depending on your environment, you could create a myservice-vip Configuration Asset that has the frontend IP, and then set a VIP=myservice-vip attribute on assets that you want to use this vip. Your automation can then know to lookup the asset in VIP if present when performing any kind of configuration for a backend device. This could be helped in the UI with [tag decorators](https://tumblr.github.io/collins/configuration.html#tag decorators) to make the VIP value a link to the asset. Generally, its an organizational convention to assign semantics to (and respect) different tags.

I've done something similar to this for a few different companies using Collins, and its worked well. Does that help answer your question?

MadelineRitchie commented 7 years ago

I understand now. Thank you for the clear and complete response. It looks like a tag decorator will fit my needs.

byxorna commented 7 years ago

Ok, cool! Glad to hear. If you find you have a useful pattern and feel like writing up a quick tutorial to help others, would you mind opening a PR against the gh-pages branch to update docs?