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* removed file * updated package * updated package * updated package * updated package * updated package * updated package * updated package * all packages updated * #295 can add token to service provider config and this will be used by consul clients to get services and configuration * #295 wait longer for this test
55 lines
2.1 KiB
ReStructuredText
55 lines
2.1 KiB
ReStructuredText
Service Discovery
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=================
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Ocelot allows you to specify a service discovery provider and will use this to find the host and port
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for the downstream service Ocelot is forwarding a request to. At the moment this is only supported in the
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GlobalConfiguration section which means the same service discovery provider will be used for all ReRoutes
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you specify a ServiceName for at ReRoute level.
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Consul
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^^^^^^
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The following is required in the GlobalConfiguration. The Provider is required and if you do not specify a host and port the Consul default
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will be used.
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.. code-block:: json
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"ServiceDiscoveryProvider": {
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"Host": "localhost",
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"Port": 9500
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}
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In the future we can add a feature that allows ReRoute specfic configuration.
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In order to tell Ocelot a ReRoute is to use the service discovery provider for its host and port you must add the
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ServiceName, UseServiceDiscovery and load balancer you wish to use when making requests downstream. At the moment Ocelot has a RoundRobin
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and LeastConnection algorithm you can use. If no load balancer is specified Ocelot will not load balance requests.
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.. code-block:: json
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{
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"DownstreamPathTemplate": "/api/posts/{postId}",
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"DownstreamScheme": "https",
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"UpstreamPathTemplate": "/posts/{postId}",
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"UpstreamHttpMethod": [ "Put" ],
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"ServiceName": "product",
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"LoadBalancer": "LeastConnection",
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"UseServiceDiscovery": true
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}
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When this is set up Ocelot will lookup the downstream host and port from the service discover provider and load balance requests across any available services.
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ACL Token
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---------
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If you are using ACL with Consul Ocelot supports adding the X-Consul-Token header. In order so this to work you must add the additional property below.
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.. code-block:: json
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"ServiceDiscoveryProvider": {
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"Host": "localhost",
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"Port": 9500,
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"Token": "footoken"
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}
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Ocelot will add this token to the consul client that it uses to make requests and that is then used for every request. |