open-consul/website/content/docs/connect/config-entries/proxy-defaults.mdx

---
layout: docs
page_title: 'Configuration Entry Kind: Proxy Defaults'
description: >-
  The proxy-defaults config entry kind allows for configuring global config
  defaults across all services for Connect proxy configuration. Currently, only
  one global entry is supported.
---

# Proxy Defaults


The `proxy-defaults` configuration entry (`ProxyDefaults` on Kubernetes) allows you
to configure global defaults across all services for Connect proxy
configurations. Only one global entry is supported.

## Introduction

You can customize some service registration settings for service mesh sidecar
proxies centrally using the `proxy-defaults` configuration entry in the `kind`
field.

You can still override this centralized configuration for specific services
with the [`service-defaults`](/docs/connect/config-entries/service-defaults)
configuration entry `kind` or for individual proxy instances in their [sidecar
service definitions](/docs/connect/registration/sidecar-service).

## Requirements

The following Consul binaries are supported:
* Consul 1.8.4+ on Kubernetes.
* Consul 1.5.0+ on other platforms.

## Usage

1. Verify that your datacenter meets the conditions specified in the [Requirements](#requirements).
1. Determine the settings you want to implement (see [Configuration](#configuration)). You can create a file containing the configuration or pass them to the state store directly to apply the configuration.
1. Apply the configuration using one of the following methods:
   - Kubernetes CRD: Refer to the [Custom Resource Definitions](/docs/k8s/crds) documentation for details.
   - Issue the `consul config write` command: Refer to the [Consul Config Write](/commands/config/write) documentation for details.

## Configuration

Configure the following parameters to define a `proxy-defaults` configuration entry:

<Tabs>
<Tab heading="Consul OSS">

<CodeTabs heading="Proxy defaults configuration syntax" tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Meta {
  <arbitrary string key> = "<arbitrary string value>"
}
Config {
  <arbitrary string key> = <arbitrary value>
}
Mode = "<name of proxy mode>"
TransparentProxy {
  OutboundListenerPort = <port the proxy should listen on for outbound traffic>
  DialedDirectly       = <true if proxy instances should be dialed directly>
}
MeshGateway {
  Mode = "<name of mesh gateway configuration for all proxies>"
}
Expose {
  Checks = <true to expose all HTTP and gRPC checks through Envoy>

  Paths = [
    {
      Path          = "<the HTTP path to expose>"
      LocalPathPort = <port where the local service is listening for connections to the path>
      ListenerPort  = <port where the proxy will listen for connections>
      Protocol      = "<protocol of the listener>"
    }
  ]
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
spec:
  meta:
    <arbitrary string key>: <arbitrary string value>
  config:
    <arbitrary string key>: <arbitrary value>
  mode: <name of proxy mode>
  transparentProxy:
    outboundListenerPort: <port the proxy should listen on for outbound traffic>
    dialedDirectly: <true if proxy instances should be dialed directly>
  meshGateway:
    mode: <name of mesh gateway configuration for all proxies>
  expose:
    checks: <true to expose all HTTP and gRPC checks through Envoy>
    paths:
      - path: <the HTTP path to expose>
        localPathPort: <port where the local service is listening for connections to the path>
        listenerPort: <port where the proxy will listen for connections>
        protocol:= <protocol of the listener>
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Meta": {
    "<arbitrary string key>": "<arbitrary string value>"
  },
  "Config": {
    "<arbitrary string key>": <arbitrary value>
  },
  "Mode": "<name of proxy mode>",
  "TransparentProxy": {
    "OutboundListenerPort": <port the proxy should listen on for outbound traffic>,
    "DialedDirectly": <true if proxy instances should be dialed directly>
  },
  "MeshGateway": {
    "Mode": = "<name of mesh gateway configuration for all proxies>"
  },
  "Expose": {
    "Checks": <true to expose all HTTP and gRPC checks through Envoy>,
    "Paths": [
      {
        "Path": "<the HTTP path to expose>",
        "LocalPathPort": <port where the local service is listening for connections to the path>,
        "ListenerPort": <port where the proxy will listen for connections>,
        "Protocol": "<protocol of the listener>"
      }
    ]
  }
}
```

</CodeTabs>

</Tab>
<Tab heading="Consul Enterprise">

-> **NOTE:** The `proxy-defaults` config entry can only be created in the `default`
namespace and it will configure proxies in **all** namespaces.

<CodeTabs heading="Proxy defaults configuration syntax" tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Namespace = "default" # Can only be set to "default".
Meta {
  <arbitrary string key> = "<arbitrary string value>"
}
Config {
  <arbitrary string key> = <arbitrary value>
}
Mode = "<name of proxy mode>"
TransparentProxy {
  OutboundListenerPort = <port the proxy should listen on for outbound traffic>
  DialedDirectly       = <true if proxy instances should be dialed directly>
}
MeshGateway {
  Mode = "<name of mesh gateway configuration for all proxies>"
}
Expose {
  Checks = <true to expose all HTTP and gRPC checks through Envoy>

  Paths = [
    {
      Path          = "<the HTTP path to expose>"
      LocalPathPort = <port where the local service is listening for connections to the path>
      ListenerPort  = <port where the proxy will listen for connections>
      Protocol      = "<protocol of the listener>"
    }
  ]
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
  namespace: default
spec:
  meta:
    <arbitrary string key>: <arbitrary string value>
  config:
    <arbitrary string key>: <arbitrary value>
  mode: <name of proxy mode>
  transparentProxy:
    outboundListenerPort: <port the proxy should listen on for outbound traffic>
    dialedDirectly: <true if proxy instances should be dialed directly>
  meshGateway:
    mode: <name of mesh gateway configuration for all proxies>
  expose:
    checks: <true to expose all HTTP and gRPC checks through Envoy>
    paths:
      - path: <the HTTP path to expose>
        localPathPort: <port where the local service is listening for connections to the path>
        listenerPort: <port where the proxy will listen for connections>
        protocol:= <protocol of the listener>
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Namespace": "default",
  "Meta": {
    "<arbitrary string key>": "<arbitrary string value>"
  },
  "Config": {
    "<arbitrary string key>": <arbitrary value>
  },
  "Mode": "<name of proxy mode>",
  "TransparentProxy": {
    "OutboundListenerPort": <port the proxy should listen on for outbound traffic>,
    "DialedDirectly": <true if proxy instances should be dialed directly>
  },
  "MeshGateway": {
    "Mode": = "<name of mesh gateway configuration for all proxies>"
  },
  "Expose": {
    "Checks": <true to expose all HTTP and gRPC checks through Envoy>,
    "Paths": [
      {
        "Path": "<the HTTP path to expose>",
        "LocalPathPort": <port where the local service is listening for connections to the path>,
        "ListenerPort": <port where the proxy will listen for connections>,
        "Protocol": "<protocol of the listener>"
      }
    ]
  }
}
```

</CodeTabs>

</Tab>
</Tabs>

### Configuration Parameters

<ConfigEntryReference
  keys={[
    {
      name: 'apiVersion',
      description: 'Must be set to `consul.hashicorp.com/v1alpha1`',
      hcl: false,
    },
    {
      name: 'Kind',
      description: {
        hcl: 'Must be set to `proxy-defaults`',
        yaml: 'Must be set to `ProxyDefaults`',
      },
    },
    {
      name: 'Name',
      description: 'Must be set to `global`',
      yaml: false,
    },
    {
      name: 'Namespace',
      type: `string: "default"`,
      enterprise: true,
      description:
        'Must be set to `default`. The configuration will apply to all namespaces.',
      yaml: false,
    },
    {
      name: 'Partition',
      type: `string: "default"`,
      enterprise: true,
      description:
        'Specifies the name of the admin partition in which the configuration entry applies. Refer to the [Admin Partitions documentation](/docs/enterprise/admin-partitions) for additional information.',
      yaml: false,
    },
    {
      name: 'Meta',
      type: 'map<string|string>: nil',
      description:
        'Specifies arbitrary KV metadata pairs. Added in Consul 1.8.4.',
      yaml: false,
    },
    {
      name: 'metadata',
      children: [
        {
          name: 'name',
          description: 'Must be set to `global`',
        },
        {
          name: 'namespace',
          enterprise: true,
          description:
            'If running Consul Open Source, the namespace is ignored (see [Kubernetes Namespaces in Consul OSS](/docs/k8s/crds#consul-oss)). If running Consul Enterprise see [Kubernetes Namespaces in Consul Enterprise](/docs/k8s/crds#consul-enterprise) for more details.',
        },
      ],
      hcl: false,
    },
    {
      name: 'Config',
      type: 'map[string]arbitrary',
      description: `An arbitrary map of configuration values used by Connect proxies.
    The available configurations depend on the Connect proxy you use.
     Any values that your proxy allows can be configured globally here. To explore these options please see the documentation for your chosen proxy.
     <ul><li>[Envoy](/docs/connect/proxies/envoy#proxy-config-options)</li>
     <li>[Consul's built-in proxy](/docs/connect/proxies/built-in#proxy-config-key-reference)</li></ul>`,
    },
    {
      name: 'Mode',
      type: `string: ""`,
      description: `One of \`direct\` or \`transparent\`.
                    \`transparent\` represents that inbound and outbound application traffic is being
                    captured and redirected through the proxy. This mode does not enable the traffic redirection
                     itself. Instead it signals Consul to configure Envoy as if traffic is already being redirected.
                    \`direct\` represents that the proxy's listeners must be dialed directly by the local
                    application and other proxies.
                    Added in v1.10.0.`,
    },
    {
      name: 'TransparentProxy',
      type: 'TransparentProxyConfig: <optional>',
      description: `Controls configuration specific to proxies in transparent mode. Added in v1.10.0.`,
      children: [
        {
          name: 'OutboundListenerPort',
          type: 'int: "15001"',
          description: `The port the proxy should listen on for outbound traffic. This must be the port where
                        outbound application traffic is captured and redirected to.`,
        },
        {
          name: 'DialedDirectly',
          type: 'bool: false',
          description: `Determines whether this proxy instance's IP address can be dialed directly by transparent proxies.
                        Typically transparent proxies dial upstreams using the "virtual" tagged address, which load balances
                        across instances. Dialing individual instances can be helpful in cases like stateful services such
                        as a database cluster with a leader. `,
        },
      ],
    },
    {
      name: 'MeshGateway',
      type: 'MeshGatewayConfig: <optional>',
      description: `Controls the default
      [mesh gateway configuration](/docs/connect/gateways/mesh-gateway/service-to-service-traffic-datacenters#connect-proxy-configuration)
      for all proxies. Added in v1.6.0.`,
      children: [
        {
          name: 'Mode',
          type: 'string: ""',
          description: 'One of `none`, `local`, or `remote`.',
        },
      ],
    },
    {
      name: 'Expose',
      type: 'ExposeConfig: <optional>',
      description: `Controls the default
                      [expose path configuration](/docs/connect/registration/service-registration#expose-paths-configuration-reference)
                      for Envoy. Added in v1.6.2.<br><br>
                      Exposing paths through Envoy enables a service to protect itself by only listening on localhost, while still allowing
                      non-Connect-enabled applications to contact an HTTP endpoint.
                      Some examples include: exposing a \`/metrics\` path for Prometheus or \`/healthz\` for kubelet liveness checks.`,
      children: [
        {
          name: 'Checks',
          type: 'bool: false',
          description: `If enabled, all HTTP and gRPC checks registered with the agent are exposed through Envoy.
        Envoy will expose listeners for these checks and will only accept connections originating from localhost or Consul's
        [advertise address](/docs/agent/config/config-files#advertise). The port for these listeners are dynamically allocated from
        [expose_min_port](/docs/agent/config/config-files#expose_min_port) to [expose_max_port](/docs/agent/config/config-files#expose_max_port).
        This flag is useful when a Consul client cannot reach registered services over localhost.`,
        },
        {
          name: 'Paths',
          type: 'array<Path>: []',
          description: 'A list of paths to expose through Envoy.',
          children: [
            {
              name: 'Path',
              type: 'string: ""',
              description:
                'The HTTP path to expose. The path must be prefixed by a slash. ie: `/metrics`.',
            },
            {
              name: 'LocalPathPort',
              type: 'int: 0',
              description:
                'The port where the local service is listening for connections to the path.',
            },
            {
              name: 'ListenerPort',
              type: 'int: 0',
              description: `The port where the proxy will listen for connections. This port must be available
           for the listener to be set up. If the port is not free then Envoy will not expose a listener for the path,
           but the proxy registration will not fail.`,
            },
            {
              name: 'Protocol',
              type: 'string: "http"',
              description:
                'Sets the protocol of the listener. One of `http` or `http2`. For gRPC use `http2`.',
            },
          ],
        },
      ],
    },
  ]}
/>

## Examples

### Default protocol

The following example configures the default protocol for all sidecar proxies.

<Tabs>
<Tab heading="Consul OSS">

<CodeTabs tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Config {
  protocol = "http"
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
spec:
  config:
    protocol: http
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Config": {
    "protocol": "http"
  }
}
```

</CodeTabs>

</Tab>
<Tab heading="Consul Enterprise">

-> **NOTE:** The `proxy-defaults` config entry can only be created in the `default`
namespace and it will configure proxies in **all** namespaces.

<CodeTabs tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Namespace = "default" # Can only be set to "default".
Config {
  protocol = "http"
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
  namespace: default
spec:
  config:
    protocol: http
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Namespace": "default",
  "Config": {
    "protocol": "http"
  }
}
```

</CodeTabs>

</Tab>
</Tabs>

### Prometheus

The following example configures all sidecar proxies to expose Prometheus metrics.

<CodeTabs tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Config {
  envoy_prometheus_bind_addr = "0.0.0.0:9102"
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
spec:
  config:
    envoy_prometheus_bind_addr: '0.0.0.0:9102'
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Config": {
    "envoy_prometheus_bind_addr": "0.0.0.0:9102"
  }
}
```

</CodeTabs>

### Proxy-specific defaults

The following example configures some custom default values for all sidecar proxies.

<CodeTabs tabs={[ "HCL", "Kubernetes YAML", "JSON" ]}>

```hcl
Kind      = "proxy-defaults"
Name      = "global"
Config {
  local_connect_timeout_ms = 1000
  handshake_timeout_ms     = 10000
}
```

```yaml
apiVersion: consul.hashicorp.com/v1alpha1
kind: ProxyDefaults
metadata:
  name: global
spec:
  config:
    local_connect_timeout_ms: 1000
    handshake_timeout_ms: 10000
```

```json
{
  "Kind": "proxy-defaults",
  "Name": "global",
  "Config": {
    "local_connect_timeout_ms": 1000,
    "handshake_timeout_ms": 10000
  }
}
```

</CodeTabs>

## ACLs

Configuration entries may be protected by [ACLs](/docs/security/acl).

Reading a `proxy-defaults` config entry requires no specific privileges.

Creating, updating, or deleting a `proxy-defaults` config entry requires
`operator:write`.