March 2020
Intermediate to advanced
626 pages
14h 45m
English
Content preview from Mastering Service Mesh
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Policies
Policies in Istio are defined through Istio primitive policies that are implemented through the CRD. You can check CRD policies in your Istio cluster like so:
$ kubectl get crd -l app=istio-citadelNAME CREATED ATmeshpolicies.authentication.istio.io 2019-07-30T02:59:14Zpolicies.authentication.istio.io 2019-07-30T02:59:14Z
You can configure policies in the Istio service mesh to enforce various rules at runtime, such as the following:
- Authentication
- Authorization
- Rate limiting to dynamically limit the traffic to a service
- Denials, whitelists, and blacklists, to restrict access to services
- Header rewrites and redirects
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