97 lines
3.8 KiB
Plaintext
97 lines
3.8 KiB
Plaintext
---
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layout: "docs"
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page_title: "Commands: Connect Proxy"
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sidebar_current: "docs-commands-connect-proxy"
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description: >
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The connect proxy subcommand is used to run the built-in mTLS proxy for Connect.
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---
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# Consul Connect Proxy
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Command: `consul connect proxy`
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The connect proxy command is used to run Consul's built-in mTLS proxy for
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use with Connect. This can be used in production to enable a Connect-unaware
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application to accept and establish Connect-based connections. This proxy
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can also be used in development to connect to Connect-enabled services.
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## Usage
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Usage: `consul connect proxy [options]`
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#### API Options
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<%= partial "docs/commands/http_api_options_client" %>
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<%= partial "docs/commands/http_api_options_server" %>
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#### Proxy Options
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* `-sidecar-for` - The _ID_ (not name if they differ) of the service instance
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this proxy will represent. The target service doesn't need to exist on the
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local agent yet but a [sidecar proxy
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registration](/docs/connect/proxies.html#sidecar-proxy-fields) with
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`proxy.destination_service_id` equal to the passed value must be present. If
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multiple proxy registrations targeting the same local service instance are
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present the command will error and `-proxy-id` should be used instead.
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* `-proxy-id` - The [proxy
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service](/docs/connect/proxies.html#proxy-service-definitions) ID on the
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local agent. This must already be present on the local agent.
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* `-log-level` - Specifies the log level.
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* `-pprof-addr` - Enable debugging via pprof. Providing a host:port (or just ':port')
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enables profiling HTTP endpoints on that address.
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* `-service` - Name of the service this proxy is representing. This service
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doesn't need to actually exist in the Consul catalog, but proper ACL
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permissions (`service:write`) are required. This and the remaining options can
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be used to setup a proxy that is not registered already with local config
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[useful for development](/docs/connect/dev.html).
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* `-upstream` - Upstream service to support connecting to. The format should be
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'name:addr', such as 'db:8181'. This will make 'db' available on port 8181.
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When a regular TCP connection is made to port 8181, the proxy will service
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discover "db" and establish a Connect mTLS connection identifying as
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the `-service` value. This flag can be repeated multiple times.
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* `-listen` - Address to listen for inbound connections to the proxied service.
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Must be specified with -service and -service-addr. If this isn't specified,
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an inbound listener is not started.
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* `-service-addr` - Address of the local service to proxy. Required for
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`-listen`.
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* `-register` - Self-register with the local Consul agent, making this
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proxy available as Connect-capable service in the catalog. This is only
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useful with `-listen`.
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* `-register-id` - Optional ID suffix for the service when `-register` is set to
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disambiguate the service ID. By default the service ID is "<service>-proxy"
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where `<service>` is the `-service` value. In most cases it is now preferable
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to use [`consul services register`](/docs/commands/services/register.html) to
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register a fully configured proxy instance rather than specify config and
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registration via this command.
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## Examples
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The example below shows how to start a local proxy for establishing outbound
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connections to "db" representing the frontend service. Once running, any
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process that creates a TCP connection to the specified port (8181) will
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establish a mutual TLS connection to "db" identified as "frontend".
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```text
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$ consul connect proxy -service frontend -upstream db:8181
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```
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The next example starts a local proxy that also accepts inbound connections
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on port 8443, authorizes the connection, then proxies it to port 8080:
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```text
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$ consul connect proxy \
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-service frontend \
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-service-addr 127.0.0.1:8080 \
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-listen ':8443'
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```
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