Add OpenTelemetry tracing and metrics support

docs/content/observability/metrics/opentelemetry.md

@@ -0,0 +1,353 @@
+---
+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`
+
+_Required, Default="/v1/traces"_
+
+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:
+    path: /foo/v1/traces
+```
+
+```toml tab="File (TOML)"
+[metrics]
+  [metrics.openTelemetry]
+    path = "/foo/v1/traces"
+```
+
+```bash tab="CLI"
+--metrics.openTelemetry.path=/foo/v1/traces
+```
+
+#### `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
+```

docs/content/observability/tracing/opentelemetry.md

@@ -0,0 +1,246 @@
+---
+title: "Traefik OpenTelemetry Documentation"
+description: "Traefik supports several tracing backends, including OpenTelemetry. Learn how to implement it for observability in Traefik Proxy. Read the technical documentation."
+---
+
+# OpenTelemetry
+
+To enable the OpenTelemetry tracer:
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry: {}
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry]
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry=true
+```
+
+!!! info "The OpenTelemetry trace reporter will export traces to the collector using HTTP by default, see the [gRPC Section](#grpc-configuration) to use gRPC."
+
+!!! info "Trace sampling"
+
+	By default, the OpenTelemetry trace reporter will sample 100% of traces.
+	See [OpenTelemetry's SDK configuration](https://opentelemetry.io/docs/reference/specification/sdk-environment-variables/#general-sdk-configuration) to customize the sampling strategy.
+
+#### `address`
+
+_Required, Default="localhost:4318", Format="`<host>:<port>`"_
+
+Address of the OpenTelemetry Collector to send spans to.
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry:
+    address: localhost:4318
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry]
+    address = "localhost:4318"
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.address=localhost:4318
+```
+
+#### `headers`
+
+_Optional, Default={}_
+
+Additional headers sent with spans by the reporter to the OpenTelemetry Collector.
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry:
+    headers:
+      foo: bar
+      baz: buz
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry.headers]
+    foo = "bar"
+    baz = "buz"
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.headers.foo=bar --tracing.openTelemetry.headers.baz=buz
+```
+
+#### `insecure`
+
+_Optional, Default=false_
+
+Allows reporter to send spans to the OpenTelemetry Collector without using a secured protocol.
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry:
+    insecure: true
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry]
+    insecure = true
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.insecure=true
+```
+
+#### `path`
+
+_Required, Default="/v1/traces"_
+
+Allows to override the default URL path used for sending traces.
+This option has no effect when using gRPC transport.
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry:
+    path: /foo/v1/traces
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry]
+    path = "/foo/v1/traces"
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.path=/foo/v1/traces
+```
+
+#### `tls`
+
+_Optional_
+
+Defines the TLS configuration used by the reporter to send spans 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)"
+tracing:
+  openTelemetry:
+    tls:
+      ca: path/to/ca.crt
+```
+
+```toml tab="File (TOML)"
+[tracing.openTelemetry.tls]
+  ca = "path/to/ca.crt"
+```
+
+```bash tab="CLI"
+--tracing.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)"
+tracing:
+  openTelemetry:
+    tls:
+      cert: path/to/foo.cert
+      key: path/to/foo.key
+```
+
+```toml tab="File (TOML)"
+[tracing.openTelemetry.tls]
+  cert = "path/to/foo.cert"
+  key = "path/to/foo.key"
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.tls.cert=path/to/foo.cert
+--tracing.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)"
+tracing:
+  openTelemetry:
+    tls:
+      cert: path/to/foo.cert
+      key: path/to/foo.key
+```
+
+```toml tab="File (TOML)"
+[tracing.openTelemetry.tls]
+  cert = "path/to/foo.cert"
+  key = "path/to/foo.key"
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.tls.cert=path/to/foo.cert
+--tracing.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)"
+tracing:
+  openTelemetry:
+    tls:
+      insecureSkipVerify: true
+```
+
+```toml tab="File (TOML)"
+[tracing.openTelemetry.tls]
+  insecureSkipVerify = true
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.tls.insecureSkipVerify=true
+```
+
+#### gRPC configuration
+
+_Optional_
+
+This instructs the reporter to send spans to the OpenTelemetry Collector using gRPC.
+
+```yaml tab="File (YAML)"
+tracing:
+  openTelemetry:
+    grpc: {}
+```
+
+```toml tab="File (TOML)"
+[tracing]
+  [tracing.openTelemetry.grpc]
+```
+
+```bash tab="CLI"
+--tracing.openTelemetry.grpc=true
+```

docs/content/reference/static-configuration/cli-ref.md

@@ -357,6 +357,51 @@ InfluxDB v2 push interval. (Default: ```10```)
 `--metrics.influxdb2.token`:  
 InfluxDB v2 access token.
 
+`--metrics.opentelemetry`:  
+OpenTelemetry metrics exporter type. (Default: ```false```)
+
+`--metrics.opentelemetry.addentrypointslabels`:  
+Enable metrics on entry points. (Default: ```true```)
+
+`--metrics.opentelemetry.address`:  
+Address (host:port) of the collector endpoint. (Default: ```localhost:4318```)
+
+`--metrics.opentelemetry.addrouterslabels`:  
+Enable metrics on routers. (Default: ```false```)
+
+`--metrics.opentelemetry.addserviceslabels`:  
+Enable metrics on services. (Default: ```true```)
+
+`--metrics.opentelemetry.explicitboundaries`:  
+Boundaries for latency metrics. (Default: ```0.005000, 0.010000, 0.025000, 0.050000, 0.100000, 0.250000, 0.500000, 1.000000, 2.500000, 5.000000, 10.000000```)
+
+`--metrics.opentelemetry.grpc`:  
+gRPC specific configuration for the OpenTelemetry collector. (Default: ```true```)
+
+`--metrics.opentelemetry.headers.<name>`:  
+Headers sent with payload.
+
+`--metrics.opentelemetry.insecure`:  
+Disables client transport security for the exporter. (Default: ```false```)
+
+`--metrics.opentelemetry.path`:  
+Set the URL path of the collector endpoint.
+
+`--metrics.opentelemetry.pushinterval`:  
+Period between calls to collect a checkpoint. (Default: ```10```)
+
+`--metrics.opentelemetry.tls.ca`:  
+TLS CA
+
+`--metrics.opentelemetry.tls.cert`:  
+TLS cert
+
+`--metrics.opentelemetry.tls.insecureskipverify`:  
+TLS insecure skip verify (Default: ```false```)
+
+`--metrics.opentelemetry.tls.key`:  
+TLS key
+
 `--metrics.prometheus`:  
 Prometheus metrics exporter type. (Default: ```false```)
 
@@ -1095,6 +1140,36 @@ Sets the sampling type. (Default: ```const```)
 `--tracing.jaeger.tracecontextheadername`:  
 Sets the header name used to store the trace ID. (Default: ```uber-trace-id```)
 
+`--tracing.opentelemetry`:  
+Settings for OpenTelemetry. (Default: ```false```)
+
+`--tracing.opentelemetry.address`:  
+Sets the address (host:port) of the collector endpoint. (Default: ```localhost:4318```)
+
+`--tracing.opentelemetry.grpc`:  
+gRPC specific configuration for the OpenTelemetry collector. (Default: ```true```)
+
+`--tracing.opentelemetry.headers.<name>`:  
+Defines additional headers to be sent with the payloads.
+
+`--tracing.opentelemetry.insecure`:  
+Disables client transport security for the exporter. (Default: ```false```)
+
+`--tracing.opentelemetry.path`:  
+Sets the URL path of the collector endpoint.
+
+`--tracing.opentelemetry.tls.ca`:  
+TLS CA
+
+`--tracing.opentelemetry.tls.cert`:  
+TLS cert
+
+`--tracing.opentelemetry.tls.insecureskipverify`:  
+TLS insecure skip verify (Default: ```false```)
+
+`--tracing.opentelemetry.tls.key`:  
+TLS key
+
 `--tracing.servicename`:  
 Set the name for this service. (Default: ```traefik```)
 

docs/content/reference/static-configuration/env-ref.md

@@ -357,6 +357,51 @@ InfluxDB retention policy used when protocol is http.
 `TRAEFIK_METRICS_INFLUXDB_USERNAME`:  
 InfluxDB username (only with http).
 
+`TRAEFIK_METRICS_OPENTELEMETRY`:  
+OpenTelemetry metrics exporter type. (Default: ```false```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_ADDENTRYPOINTSLABELS`:  
+Enable metrics on entry points. (Default: ```true```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_ADDRESS`:  
+Address (host:port) of the collector endpoint. (Default: ```localhost:4318```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_ADDROUTERSLABELS`:  
+Enable metrics on routers. (Default: ```false```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_ADDSERVICESLABELS`:  
+Enable metrics on services. (Default: ```true```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_EXPLICITBOUNDARIES`:  
+Boundaries for latency metrics. (Default: ```0.005000, 0.010000, 0.025000, 0.050000, 0.100000, 0.250000, 0.500000, 1.000000, 2.500000, 5.000000, 10.000000```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_GRPC`:  
+gRPC specific configuration for the OpenTelemetry collector. (Default: ```true```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_HEADERS_<NAME>`:  
+Headers sent with payload.
+
+`TRAEFIK_METRICS_OPENTELEMETRY_INSECURE`:  
+Disables client transport security for the exporter. (Default: ```false```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_PATH`:  
+Set the URL path of the collector endpoint.
+
+`TRAEFIK_METRICS_OPENTELEMETRY_PUSHINTERVAL`:  
+Period between calls to collect a checkpoint. (Default: ```10```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_TLS_CA`:  
+TLS CA
+
+`TRAEFIK_METRICS_OPENTELEMETRY_TLS_CERT`:  
+TLS cert
+
+`TRAEFIK_METRICS_OPENTELEMETRY_TLS_INSECURESKIPVERIFY`:  
+TLS insecure skip verify (Default: ```false```)
+
+`TRAEFIK_METRICS_OPENTELEMETRY_TLS_KEY`:  
+TLS key
+
 `TRAEFIK_METRICS_PROMETHEUS`:  
 Prometheus metrics exporter type. (Default: ```false```)
 
@@ -1095,6 +1140,36 @@ Sets the sampling type. (Default: ```const```)
 `TRAEFIK_TRACING_JAEGER_TRACECONTEXTHEADERNAME`:  
 Sets the header name used to store the trace ID. (Default: ```uber-trace-id```)
 
+`TRAEFIK_TRACING_OPENTELEMETRY`:  
+Settings for OpenTelemetry. (Default: ```false```)
+
+`TRAEFIK_TRACING_OPENTELEMETRY_ADDRESS`:  
+Sets the address (host:port) of the collector endpoint. (Default: ```localhost:4318```)
+
+`TRAEFIK_TRACING_OPENTELEMETRY_GRPC`:  
+gRPC specific configuration for the OpenTelemetry collector. (Default: ```true```)
+
+`TRAEFIK_TRACING_OPENTELEMETRY_HEADERS_<NAME>`:  
+Defines additional headers to be sent with the payloads.
+
+`TRAEFIK_TRACING_OPENTELEMETRY_INSECURE`:  
+Disables client transport security for the exporter. (Default: ```false```)
+
+`TRAEFIK_TRACING_OPENTELEMETRY_PATH`:  
+Sets the URL path of the collector endpoint.
+
+`TRAEFIK_TRACING_OPENTELEMETRY_TLS_CA`:  
+TLS CA
+
+`TRAEFIK_TRACING_OPENTELEMETRY_TLS_CERT`:  
+TLS cert
+
+`TRAEFIK_TRACING_OPENTELEMETRY_TLS_INSECURESKIPVERIFY`:  
+TLS insecure skip verify (Default: ```false```)
+
+`TRAEFIK_TRACING_OPENTELEMETRY_TLS_KEY`:  
+TLS key
+
 `TRAEFIK_TRACING_SERVICENAME`:  
 Set the name for this service. (Default: ```traefik```)
 

docs/content/reference/static-configuration/file.toml

@@ -307,6 +307,25 @@
     [metrics.influxDB2.additionalLabels]
       name0 = "foobar"
       name1 = "foobar"
+  [metrics.openTelemetry]
+    address = "foobar"
+    addEntryPointsLabels = true
+    addRoutersLabels = true
+    addServicesLabels = true
+    pushInterval = "42s"
+    path = "foobar"
+    explicitBoundaries =  [42.0, 42.0]
+    insecure = true
+    [metrics.openTelemetry.headers]
+      name0 = "foobar"
+      name1 = "foobar"
+    [metrics.openTelemetry.tls]
+      ca = "foobar"
+      caOptional = true
+      cert = "foobar"
+      insecureSkipVerify = true
+      key = "foobar"
+    [metrics.openTelemetry.grpc]
 
 [ping]
   entryPoint = "foobar"
@@ -391,6 +410,20 @@
     serverURL = "foobar"
     secretToken = "foobar"
     serviceEnvironment = "foobar"
+  [tracing.openTelemetry]
+    address = "foobar"
+    insecure = true
+    path = "foobar"
+    [tracing.openTelemetry.headers]
+      name0 = "foobar"
+      name1 = "foobar"
+    [tracing.openTelemetry.tls]
+      ca = "foobar"
+      caOptional = true
+      cert = "foobar"
+      key = "foobar"
+      insecureSkipVerify = true
+    [tracing.openTelemetry.grpc]
 
 [hostResolver]
   cnameFlattening = true

docs/content/reference/static-configuration/file.yaml

@@ -335,6 +335,28 @@ metrics:
     additionalLabels:
       name0: foobar
       name1: foobar
+  openTelemetry:
+    address: foobar
+    addEntryPointsLabels: true
+    addRoutersLabels: true
+    addServicesLabels: true
+    explicitBoundaries:
+      - 42
+      - 42
+    headers:
+      name0: foobar
+      name1: foobar
+    insecure: true
+    path: foobar
+    pushInterval: 42s
+    tls:
+      ca: foobar
+      caOptional: true
+      cert: foobar
+      insecureSkipVerify: true
+      key: foobar
+    grpc: {}
+
 ping:
   entryPoint: foobar
   manualRouting: true
@@ -417,6 +439,20 @@ tracing:
     serverURL: foobar
     secretToken: foobar
     serviceEnvironment: foobar
+  openTelemetry:
+    address: foobar
+    headers:
+      name0: foobar
+      name1: foobar
+    insecure: true
+    path: foobar
+    tls:
+      ca: foobar
+      caOptional: true
+      cert: foobar
+      key: foobar
+      insecureSkipVerify: true
+    grpc: {}
 hostResolver:
   cnameFlattening: true
   resolvConfig: foobar