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feat: OpenTelemetry module integration (#9062)

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* OpenTelemetry module integration

* e2e test

* e2e test fix

* default OpentelemetryConfig

* e2e values

* mount otel module for otel test only

* propagate IS_CHROOT

* propagate IS_CHROOT e2e test

* code doc

* comments

* golint

* opentelemetry doc

* zipkin

* zipkin

* typo

* update e2e test OpenTelemetry value

* use opentelemetry value

* revert merge conflict

* fix

* format

* review comments

* clean
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Ehsan Saei 2023-03-22 19:58:22 +01:00 • committed by GitHub
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20
docs/user-guide/nginx-configuration/annotations.md
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@ -121,6 +121,8 @@ You can add these Kubernetes annotations to specific Ingress objects to customiz
|[nginx.ingress.kubernetes.io/enable-access-log](#enable-access-log)|"true" or "false"|
|[nginx.ingress.kubernetes.io/enable-opentracing](#enable-opentracing)|"true" or "false"|
|[nginx.ingress.kubernetes.io/opentracing-trust-incoming-span](#opentracing-trust-incoming-span)|"true" or "false"|
|[nginx.ingress.kubernetes.io/enable-opentelemetry](#enable-opentelemetry)|"true" or "false"|
|[nginx.ingress.kubernetes.io/opentelemetry-trust-incoming-span](#opentelemetry-trust-incoming-spans)|"true" or "false"|
|[nginx.ingress.kubernetes.io/enable-influxdb](#influxdb)|"true" or "false"|
|[nginx.ingress.kubernetes.io/influxdb-measurement](#influxdb)|string|
|[nginx.ingress.kubernetes.io/influxdb-port](#influxdb)|string|
@ -821,6 +823,24 @@ sometimes need to be overridden to enable it or disable it for a specific ingres
nginx.ingress.kubernetes.io/opentracing-trust-incoming-span: "true"
```
### Enable Opentelemetry
Opentelemetry can be enabled or disabled globally through the ConfigMap but this will sometimes need to be overridden
to enable it or disable it for a specific ingress (e.g. to turn off telemetry of external health check endpoints)
```yaml
nginx.ingress.kubernetes.io/enable-opentelemetry: "true"
```
### Opentelemetry Trust Incoming Span
The option to trust incoming trace spans can be enabled or disabled globally through the ConfigMap but this will
sometimes need to be overridden to enable it or disable it for a specific ingress (e.g. only enable on a private endpoint)
```yaml
nginx.ingress.kubernetes.io/opentelemetry-trust-incoming-spans: "true"
```
### X-Forwarded-Prefix Header
To add the non-standard `X-Forwarded-Prefix` header to the upstream request with a string value, the following annotation can be used: