A per-service proxy sidecar transparently handles inbound and outbound service connections. You can register these sidecars with sane defaults by nesting their definitions in the service definition.
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# Proxy Service Registration
To function as a Connect proxy, proxies must be declared as a proxy types in
their service definitions, and provide information about the service they
represent.
To declare a service as a proxy, the service definition must contain
the following fields:
*`kind``(string)` must be set to `connect-proxy`. This declares that the
service is a proxy type.
*`proxy.destination_service_name``(string)` must be set to the service that
this proxy is representing. Note that this replaces `proxy_destination` in
versions 1.2.0 to 1.3.0.
~> **Deprecation Notice:** From version 1.2.0 to 1.3.0, proxy destination was
specified using `proxy_destination` at the top level. This will continue to work
until at least 1.5.0 but it's highly recommended to switch to using
`proxy.destination_service_name`.
*`port``(int)` must be set so that other Connect services can discover the
exact address for connections. `address` is optional if the service is being
registered against an agent, since it'll inherit the node address.
Minimal Example:
```json
{
"name": "redis-proxy",
"kind": "connect-proxy",
"proxy": {
"destination_service_name": "redis"
},
"port": 8181
}
```
With this service registered, any Connect clients searching for a
Connect-capable endpoint for "redis" will find this proxy.
### Sidecar Proxy Fields
Most Connect proxies are deployed as "sidecars" which means they are co-located
with a single service instance which they represent and proxy all inbound
traffic to. In this case the following fields should also be set if you are deploying your proxy as a sidecar but defining it in its own service registration:
*`proxy.destination_service_id``(string: <required>)` is set to the _id_
(and not the _name_ if they are different) of the specific service instance
that is being proxied. The proxied service is assumed to be registered on
the same agent although it's not strictly validated to allow for
un-coordinated registrations.
*`proxy.local_service_port``(int: <required>)` must specify the port the
proxy should use to connect to the _local_ service instance.
*`proxy.local_service_address``(string: "")` can be set to override the IP or
hostname the proxy should use to connect to the _local_ service. Defaults to
`127.0.0.1`.
### Complete Configuration Example
The following is a complete example showing all the options available when
