mirror of https://github.com/hashicorp/consul
91 lines
3.5 KiB
Markdown
91 lines
3.5 KiB
Markdown
---
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layout: docs
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page_title: Built-in Proxy Configuration | Service Mesh
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description: >-
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Consul includes a built-in L4 proxy with limited capabilities to use for development and testing only. Use the built-in proxy config key reference to learn about the options you can configure.
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---
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# Built-in Proxy Configuration for Service Mesh
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~> **Note:** The built-in proxy is not supported for production deployments. It does not
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support many of Consul's service mesh features, and is not under active development.
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The [Envoy proxy](/consul/docs/connect/proxies/envoy) should be used for production deployments.
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Consul comes with a built-in L4 proxy for testing and development with Consul
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service mesh.
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## Proxy Config Key Reference
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Below is a complete example of all the configuration options available
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for the built-in proxy.
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```json
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{
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"service": {
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"name": "example-service",
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"connect": {
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"sidecar_service": {
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"proxy": {
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"config": {
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"bind_address": "0.0.0.0",
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"bind_port": 20000,
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"local_service_address": "127.0.0.1:1234",
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"local_connect_timeout_ms": 1000,
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"handshake_timeout_ms": 10000,
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"upstreams": []
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},
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"upstreams": [
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{
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"destination_name": "example-upstream",
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"config": {
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"connect_timeout_ms": 1000
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}
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}
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]
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}
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}
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}
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}
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}
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```
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All fields are optional with a reasonable default.
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- `bind_address` - The address the proxy will bind its
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_public_ mTLS listener to. It defaults to the same address the agent binds to.
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- `bind_port` - The port the proxy will bind its _public_
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mTLS listener to. If not provided, the agent will assign a random port from its
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configured proxy port range specified by [`sidecar_min_port`](/consul/docs/agent/config/config-files#sidecar_min_port)
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and [`sidecar_max_port`](/consul/docs/agent/config/config-files#sidecar_max_port).
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- `local_service_address`- The `[address]:port`
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that the proxy should use to connect to the local application instance. By default
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it assumes `127.0.0.1` as the address and takes the port from the service definition's
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`port` field. Note that allowing the application to listen on any non-loopback
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address may expose it externally and bypass the service mesh's access enforcement. It may
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be useful though to allow non-standard loopback addresses or where an alternative
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known-private IP is available for example when using internal networking between
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containers.
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- `local_connect_timeout_ms` - The number
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of milliseconds the proxy will wait to establish a connection to the _local application_
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before giving up. Defaults to `1000` or 1 second.
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- `handshake_timeout_ms` - The number of milliseconds
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the proxy will wait for _incoming_ mTLS connections to complete the TLS handshake.
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Defaults to `10000` or 10 seconds.
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- `upstreams`- **Deprecated** Upstreams are now specified
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in the `connect.proxy` definition. Upstreams specified in the opaque config map
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here will continue to work for compatibility but it's strongly recommended that
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you move to using the higher level [upstream configuration](/consul/docs/connect/proxies/proxy-config-reference#upstream-configuration-reference).
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## Proxy Upstream Config Key Reference
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All fields are optional with a reasonable default.
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- `connect_timeout_ms` - The number of milliseconds
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the proxy will wait to establish a TLS connection to the discovered upstream instance
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before giving up. Defaults to `10000` or 10 seconds.
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