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Feature/steeltoe (#324)

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* #262 - Integrated Steeltoe Service Discovery with Ocelot for review.

* messing around

* seems to be working with eureka

* acceptance test passing with external lib references

* #262 support for netflix eureka service discovery thanks to pivotal

* #262 fixed warnings
This commit is contained in:
Tom Pallister
2018-04-20 21:28:49 +01:00
committed by GitHub
parent a5f3e0fa75
commit 4f061f2b74
18 changed files with 665 additions and 72 deletions
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35
docs/features/servicediscovery.rst
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@ -52,4 +52,37 @@ If you are using ACL with Consul Ocelot supports adding the X-Consul-Token heade
"Token": "footoken"
}
Ocelot will add this token to the consul client that it uses to make requests and that is then used for every request.
Ocelot will add this token to the consul client that it uses to make requests and that is then used for every request.
Eureka
^^^^^^
This feature was requested as part of `Issue 262 <https://github.com/TomPallister/Ocelot/issue/262>`_ . to add support for Netflix's
Eureka service discovery provider. The main reason for this is it is a key part of `Steeltoe <https://steeltoe.io/>`_ which is something
to do with `Pivotal <https://pivotal.io/platform>`_! Anyway enough of the background.
In order to get this working add the following to ocelot.json..
.. code-block:: json
"ServiceDiscoveryProvider": {
"Type": "Eureka"
}
And following the guide `Here <https://steeltoe.io/docs/steeltoe-discovery/>`_ you may also need to add some stuff to appsettings.json. For example the json below
tells the steeltoe / pivotal services where to look for the service discovery server and if the service should register with it.
.. code-block:: json
"eureka": {
"client": {
"serviceUrl": "http://localhost:8761/eureka/",
"shouldRegisterWithEureka": true
}
}
Ocelot will now register all the necessary services when it starts up and if you have the json above will register itself with
Eureka. One of the services polls Eureka every 30 seconds (default) and gets the latest service state and persists this in memory.
When Ocelot asks for a given service it is retrieved from memory so performance is not a big problem. Please note that this code
is provided by the Pivotal.Discovery.Client NuGet package so big thanks to them for all the hard work.