--- layout: docs page_title: Proxy Defaults - Configuration Entry Reference description: >- The proxy defaults configuration entry kind defines default behaviors for proxies in the service mesh. Use the reference guide to learn about `""proxy-defaults""` config entry parameters. --- # Proxy Defaults Configuration Entry The `proxy-defaults` configuration entry (`ProxyDefaults` on Kubernetes) allows you to globally configure passthrough Envoy settings for proxies in the service mesh, including both sidecars and gateways. It is different from the [`mesh` configuration entry](/consul/docs/connect/config-entries/mesh), which sets Consul features for cluster peering, transparent proxy, and TLS behavior that also affect Consul servers. Only one global entry is supported. For Consul Enterprise, only the global entry in the `default` partition is recognized. ## Introduction You can customize some service registration settings for service mesh 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`](/consul/docs/connect/config-entries/service-defaults) configuration entry `kind` or for individual proxy instances in their [sidecar service definitions](/consul/docs/connect/registration/sidecar-service). ## 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](/consul/docs/k8s/crds) documentation for details. - Issue the `consul config write` command: Refer to the [Consul Config Write](/consul/commands/config/write) documentation for details. ## Configuration Configure the following parameters to define a `proxy-defaults` configuration entry: ```hcl Kind = "proxy-defaults" Name = "global" Meta { = "" } Config { = } Mode = "" TransparentProxy { OutboundListenerPort = DialedDirectly = } MeshGateway { Mode = "" } Expose { Checks = Paths = [ { Path = "" LocalPathPort = ListenerPort = Protocol = "" } ] } AccessLogs { Enabled = < true | false > DisableListenerLogs = < true | false , disables listener access logs for unrecognized traffic> Type = "< file | stdout | stdout, the destination for access logs >" Path = "< set the output path for 'file' based access logs >" JSONFormat = "< json representation of access log format >" TextFormat = "< text representation of access log format >" } ``` ```yaml apiVersion: consul.hashicorp.com/v1alpha1 kind: ProxyDefaults metadata: name: global spec: meta: : config: : mode: transparentProxy: outboundListenerPort: dialedDirectly: meshGateway: mode: expose: checks: paths: - path: localPathPort: listenerPort: protocol:= accessLogs: enabled: < true | false > disableListenerLogs: < true | false , disables listener access logs for unrecognized traffic> type: < file | stdout | stdout, the destination for access logs > path: < set the output path for 'file' based access logs > jsonFormat: < json representation of access log format > textFormat: < text representation of access log format > ``` ```json { "Kind": "proxy-defaults", "Name": "global", "Meta": { "": "" }, "Config": { "": }, "Mode": "", "TransparentProxy": { "OutboundListenerPort": , "DialedDirectly": }, "MeshGateway": { "Mode": = "" }, "Expose": { "Checks": , "Paths": [ { "Path": "", "LocalPathPort": , "ListenerPort": , "Protocol": "" } ] }, "AccessLogs": { "Enabled": < true | false >, "DisableListenerLogs": < true | false , disables listener access logs for unrecognized traffic>, "Type": "< file | stdout | stdout, the destination for access logs >", "Path": "< set the output path for 'file' based access logs >", "JSONFormat": "< json representation of access log format >", "TextFormat": "< text representation of access log format >" } } ``` -> **NOTE:** The `proxy-defaults` config entry can only be created in the `default` namespace and it will configure proxies in **all** namespaces. ```hcl Kind = "proxy-defaults" Name = "global" Namespace = "default" # Can only be set to "default". Meta { = "" } Config { = } Mode = "" TransparentProxy { OutboundListenerPort = DialedDirectly = } MeshGateway { Mode = "" } Expose { Checks = Paths = [ { Path = "" LocalPathPort = ListenerPort = Protocol = "" } ] } AccessLogs { Enabled = < true | false > DisableListenerLogs = < true | false , disables listener access logs for unrecognized traffic> Type = "< file | stdout | stdout, the destination for access logs >" Path = "< set the output path for 'file' based access logs >" JSONFormat = "< json representation of access log format >" TextFormat = "< text representation of access log format >" } ``` ```yaml apiVersion: consul.hashicorp.com/v1alpha1 kind: ProxyDefaults metadata: name: global namespace: default spec: meta: : config: : mode: transparentProxy: outboundListenerPort: dialedDirectly: meshGateway: mode: expose: checks: paths: - path: localPathPort: listenerPort: protocol:= accessLogs: enabled: < true | false > disableListenerLogs: < true | false , disables listener access logs for unrecognized traffic> type: < file | stdout | stdout, the destination for access logs > path: < set the output path for 'file' based access logs > jsonFormat: < json representation of access log format > textFormat: < text representation of access log format > ``` ```json { "Kind": "proxy-defaults", "Name": "global", "Namespace": "default", "Meta": { "": "" }, "Config": { "": }, "Mode": "", "TransparentProxy": { "OutboundListenerPort": , "DialedDirectly": }, "MeshGateway": { "Mode": = "" }, "Expose": { "Checks": , "Paths": [ { "Path": "", "LocalPathPort": , "ListenerPort": , "Protocol": "" } ] }, "AccessLogs": { "Enabled": < true | false >, "DisableListenerLogs": < true | false , disables listener access logs for unrecognized traffic>, "Type": "< file | stdout | stdout, the destination for access logs >", "Path": "< set the output path for 'file' based access logs >", "JSONFormat": "< json representation of access log format >", "TextFormat": "< text representation of access log format >" } } ``` ### Configuration Parameters : 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](/consul/docs/k8s/crds#consul-oss)). If running Consul Enterprise see [Kubernetes Namespaces in Consul Enterprise](/consul/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 service mesh proxies. The available configurations depend on the mesh 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. `, }, { name: 'EnvoyExtensions', type: 'array: []', description: `A list of extensions to modify Envoy proxy configuration.

Applying \`EnvoyExtensions\` to \`ProxyDefaults\` may produce unintended consequences. We recommend enabling \`EnvoyExtensions\` with [\`ServiceDefaults\`](/consul/docs/connect/config-entries/service-defaults#envoyextensions) in most cases.`, children: [ { name: 'Name', type: `string: ""`, description: `Name of the extension.`, }, { name: 'Required', type: `string: ""`, description: `When \`Required\` is true and the extension does not update any Envoy resources, an error is returned. Use this parameter to ensure that extensions required for secure communication are not unintentionally bypassed.`, }, { name: 'Arguments', type: 'map: nil', description: `Arguments to pass to the extension executable.`, }, ], }, { 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: ', 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: ', description: `Controls the default [mesh gateway configuration](/consul/docs/connect/gateways/mesh-gateway#service-mesh-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: ', description: `Controls the default [expose path configuration](/consul/docs/connect/registration/service-registration#expose-paths-configuration-reference) for Envoy. Added in v1.6.2.

Exposing paths through Envoy enables a service to protect itself by only listening on localhost, while still allowing non-mesh-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](/consul/docs/agent/config/config-files#advertise). The port for these listeners are dynamically allocated from [expose_min_port](/consul/docs/agent/config/config-files#expose_min_port) to [expose_max_port](/consul/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: []', 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`.', }, ], }, ], }, { name: 'FailoverPolicy', type: 'ServiceResolverFailoverPolicy: ', description: `Policy specifies the exact mechanism used for failover. Added in v1.16.0.`, children: [ { name: 'Mode', type: 'string: ""', description: 'One of `""`, `default`, or `order-by-locality`.', }, ], }, { name: 'AccessLogs', type: 'AccessLogsConfig: ', description: `Controls the configuration of [Envoy's access logging](https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/observability/access_logging.html?highlight=access%20logs) for all proxies in the mesh, including gateways. It also configures access logs on [Envoy's administration interface](https://www.envoyproxy.io/docs/envoy/latest/operations/admin.html?highlight=administration%20logs).`, children: [ { name: 'Enabled', type: 'bool: false', description: 'When enabled, access logs are emitted for all proxies in the mesh, including gateways.', }, { name: 'DisableListenerLogs', type: 'bool: false', description: `When enabled, access logs for traffic rejected at the listener-level are not emitted. This traffic includes connections that do not match any of Envoy's configured filters, such as Consul upstream services. Set this option to \`true\` if you do not want to log unknown requests that Envoy is not forwarding`, }, { name: 'Type', type: 'string: "stdout"', description: 'The destination for access logs. One of \`stdout\`, \`stderr\`, or \`file\`.', }, { name: 'Path', type: 'string: ""', description: 'The destination file for access logs. Only valid with \`Type\` set to \`file\`.', }, { name: 'JSONFormat', type: 'string: (default as follows)', description: `A JSON-formatted string that represents the format of each emitted access log. By default, it is set to the [default access log format](/consul/docs/connect/observability/access-logs#default-log-format). You can use Envoy [command operators](https://www.envoyproxy.io/docs/envoy/latest/configuration/observability/access_log/usage#command-operators) to customize the emitted data. Nesting is supported. Invalid if a custom format is specified with TextFormat.`, }, { name: 'TextFormat', type: 'string: ""', description: `A formatted string that represents the format of each emitted access log. Envoy [command operators](https://www.envoyproxy.io/docs/envoy/latest/configuration/observability/access_log/usage#command-operators) can be used to customize the data emitted. A new line is added to the string automatically. Invalid when a custom JSONFormat is already specified.`, } ], }, ]} /> ## Examples ### Default protocol The following example configures the default protocol for all proxies. ```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" } } ``` -> **NOTE:** The `proxy-defaults` config entry can only be created in the `default` namespace and it will configure proxies in **all** namespaces. ```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" } } ``` ### Prometheus The following example configures all proxies to expose Prometheus metrics. ```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" } } ``` ### Access Logs The following example is a minimal configuration for enabling access logs for all proxies. Refer to [access logs](/consul/docs/connect/observability/access-logs) for advanced configurations. ```hcl Kind = "proxy-defaults" Name = "global" AccessLogs { Enabled = true } ``` ```yaml apiVersion: consul.hashicorp.com/v1alpha1 kind: ProxyDefaults metadata: name: global spec: accessLogs: enabled: true ``` ```json { "Kind": "proxy-defaults", "Name": "global", "AccessLogs": { "Enabled": true } } ``` ### Proxy-specific defaults The following example configures some custom default values for all proxies. ```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 } } ``` ## ACLs Configuration entries may be protected by [ACLs](/consul/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`.