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---
title: "Traefik OpenTelemetry Documentation"
description: "Traefik supports several metrics backends, including OpenTelemetry. Learn how to implement it for observability in Traefik Proxy. Read the technical documentation."
---
# OpenTelemetry
To enable the OpenTelemetry:
```yaml tab="File (YAML)"
metrics:
openTelemetry: {}
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
```
```bash tab="CLI"
--metrics.openTelemetry=true
```
!!! info "The OpenTelemetry exporter will export metrics to the collector by using HTTP by default, see the [gRPC Section ](#grpc-configuration ) to use gRPC."
#### `address`
_Required, Default="localhost:4318", Format="`< host > :< port > `"_
Address of the OpenTelemetry Collector to send metrics to.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
address: localhost:4318
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
address = "localhost:4318"
```
```bash tab="CLI"
--metrics.openTelemetry.address=localhost:4318
```
#### `addEntryPointsLabels`
_Optional, Default=true_
Enable metrics on entry points.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
addEntryPointsLabels: true
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
addEntryPointsLabels = true
```
```bash tab="CLI"
--metrics.openTelemetry.addEntryPointsLabels=true
```
#### `addRoutersLabels`
_Optional, Default=false_
Enable metrics on routers.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
addRoutersLabels: true
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
addRoutersLabels = true
```
```bash tab="CLI"
--metrics.openTelemetry.addRoutersLabels=true
```
#### `addServicesLabels`
_Optional, Default=true_
Enable metrics on services.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
addServicesLabels: true
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
addServicesLabels = true
```
```bash tab="CLI"
--metrics.openTelemetry.addServicesLabels=true
```
#### `explicitBoundaries`
_Optional, Default=".005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10"_
Explicit boundaries for Histogram data points.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
explicitBoundaries:
- 0.1
- 0.3
- 1.2
- 5.0
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
explicitBoundaries = [0.1,0.3,1.2,5.0]
```
```bash tab="CLI"
--metrics.openTelemetry.explicitBoundaries=0.1,0.3,1.2,5.0
```
#### `headers`
_Optional, Default={}_
Additional headers sent with metrics by the reporter to the OpenTelemetry Collector.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
headers:
foo: bar
baz: buz
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry.headers]
foo = "bar"
baz = "buz"
```
```bash tab="CLI"
--metrics.openTelemetry.headers.foo=bar --metrics.openTelemetry.headers.baz=buz
```
#### `insecure`
_Optional, Default=false_
Allows reporter to send metrics to the OpenTelemetry Collector without using a secured protocol.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
insecure: true
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
insecure = true
```
```bash tab="CLI"
--metrics.openTelemetry.insecure=true
```
#### `pushInterval`
_Optional, Default=10s_
Interval at which metrics are sent to the OpenTelemetry Collector.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
pushInterval: 10s
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
pushInterval = "10s"
```
```bash tab="CLI"
--metrics.openTelemetry.pushInterval=10s
```
#### `path`
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_Required, Default="/v1/metrics"_
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Allows to override the default URL path used for sending metrics.
This option has no effect when using gRPC transport.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
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path: /foo/v1/metrics
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```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry]
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path = "/foo/v1/metrics"
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```
```bash tab="CLI"
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--metrics.openTelemetry.path=/foo/v1/metrics
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```
#### `tls`
_Optional_
Defines the TLS configuration used by the reporter to send metrics to the OpenTelemetry Collector.
##### `ca`
_Optional_
`ca` is the path to the certificate authority used for the secure connection to the OpenTelemetry Collector,
it defaults to the system bundle.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
tls:
ca: path/to/ca.crt
```
```toml tab="File (TOML)"
[metrics.openTelemetry.tls]
ca = "path/to/ca.crt"
```
```bash tab="CLI"
--metrics.openTelemetry.tls.ca=path/to/ca.crt
```
##### `cert`
_Optional_
`cert` is the path to the public certificate used for the secure connection to the OpenTelemetry Collector.
When using this option, setting the `key` option is required.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
tls:
cert: path/to/foo.cert
key: path/to/foo.key
```
```toml tab="File (TOML)"
[metrics.openTelemetry.tls]
cert = "path/to/foo.cert"
key = "path/to/foo.key"
```
```bash tab="CLI"
--metrics.openTelemetry.tls.cert=path/to/foo.cert
--metrics.openTelemetry.tls.key=path/to/foo.key
```
##### `key`
_Optional_
`key` is the path to the private key used for the secure connection to the OpenTelemetry Collector.
When using this option, setting the `cert` option is required.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
tls:
cert: path/to/foo.cert
key: path/to/foo.key
```
```toml tab="File (TOML)"
[metrics.openTelemetry.tls]
cert = "path/to/foo.cert"
key = "path/to/foo.key"
```
```bash tab="CLI"
--metrics.openTelemetry.tls.cert=path/to/foo.cert
--metrics.openTelemetry.tls.key=path/to/foo.key
```
##### `insecureSkipVerify`
_Optional, Default=false_
If `insecureSkipVerify` is `true` ,
the TLS connection to the OpenTelemetry Collector accepts any certificate presented by the server regardless of the hostnames it covers.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
tls:
insecureSkipVerify: true
```
```toml tab="File (TOML)"
[metrics.openTelemetry.tls]
insecureSkipVerify = true
```
```bash tab="CLI"
--metrics.openTelemetry.tls.insecureSkipVerify=true
```
#### gRPC configuration
This instructs the reporter to send metrics to the OpenTelemetry Collector using gRPC.
```yaml tab="File (YAML)"
metrics:
openTelemetry:
grpc: {}
```
```toml tab="File (TOML)"
[metrics]
[metrics.openTelemetry.grpc]
```
```bash tab="CLI"
--metrics.openTelemetry.grpc=true
```
