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add initial galley intro to "what is istio" concept page (#2113)

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Jason Young 2018-08-01 12:10:58 -07:00 committed by Martin Taillefer
parent 2bbe9eef03
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content/docs/concepts/what-is-istio/index.md
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@ -195,6 +195,15 @@ on network controls. Starting from release 0.5, you can use
[Istio's authorization feature](/docs/concepts/security/#authorization) to control
who can access your services.
### Galley
Galley validates user authored Istio API configuration on behalf of
the other Istio control plane components. Over time, Galley will take
over responsibility as the top-level config ingestion, processing and
distribution component of Istio. It will be responsible for insulating
the rest of the Istio components from the details of obtaining user
configuration from the underlying platform (e.g. Kubernetes).
## Design Goals
A few key design goals informed Istio’s architecture. These goals are essential