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https://github.com/snowdrop/opentracing-tracer
DEPRECATED - Spring Boot autoconfiguration for OpenTracing tracer implementations
https://github.com/snowdrop/opentracing-tracer
bean opentracing spring spring-boot-autoconfiguration
Last synced: 3 days ago
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DEPRECATED - Spring Boot autoconfiguration for OpenTracing tracer implementations
- Host: GitHub
- URL: https://github.com/snowdrop/opentracing-tracer
- Owner: snowdrop
- License: apache-2.0
- Created: 2018-02-01T17:06:10.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2018-06-05T10:16:39.000Z (over 6 years ago)
- Last Synced: 2023-07-28T10:23:37.939Z (over 1 year ago)
- Topics: bean, opentracing, spring, spring-boot-autoconfiguration
- Language: Java
- Homepage:
- Size: 85.9 KB
- Stars: 1
- Watchers: 6
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# opentracing-tracer
Spring Boot autoconfiguration for OpenTracing tracer implementations
**WARNING**
This repo has been deprecated. Please use [this](https://github.com/opentracing-contrib/java-spring-jaeger) module instead
## Usage
Depending on what kind of Spring project is to be instrumented, add of one the following dependencies
* Spring MVC project
```xml
me.snowdrop
opentracing-tracer-jaeger-spring-web-starter
0.1
```
* Spring Cloud project
```xml
me.snowdrop
opentracing-tracer-jaeger-spring-cloud-starter
0.1
```
If for some reason the user plans to include the instrumentation dependencies manually, then the
following starter can be used to simply include the auto-configuration code and Jaeger dependency
```xml
me.snowdrop
0.1
opentracing-tracer-jaeger-starter
```
## Configuration options
All the available configuration options can be seen in `me.snowdrop.opentracing.tracer.JaegerConfigurationProperties`.
The prefix to be used for these properties is `opentracing.jaeger`.
Beware to use the correct syntax for properties that are camel-case in `JaegerConfigurationProperties`.
* For properties / yaml files use `-`. For example `opentracing.jaeger.log-spans=true`
* For environment variables use `_`. For example `OPENTRACING_JAEGER_LOG_SPANS`
## Defaults
If no configuration options are changed and the user does not manually provide any of the beans that the
auto-configuration process provides, the following defaults are used:
* `spring-boot` Will be used as the service-name
* A `CompositeReporter` is provided which does not contain any delegates - effectively functioning as a Noop `Reporter`
* A `ConstSampler` with the value of `true`. This means that every trace will be sampled
* A `NullStatsReporter` is used - effectively meaning that no stats will be collected about the reporting of traces
## Manual bean provisioning
Any of the following beans can be provided by the application (by adding configuring them as bean with `@Bean` for example)
and will be used to by the Tracer instead of the auto-configured beans.
* `com.uber.jaeger.samplers.Sampler`
* `com.uber.jaeger.metrics.StatsReporter`
* `com.uber.jaeger.metrics.Metrics`
* `com.uber.jaeger.reporters.Reporter`
## Common cases
### Set service name
Set `opentracing.jaeger.service-name` to the desired name
### Define an HTTP collector
Set `opentracing.jaeger.http-sender.url` to the URL of the Jaeger collector
### Define a UDP collector
Set `opentracing.jaeger.udp-sender.host` to the host of the Jaeger collector
and `opentracing.jaeger.udp-sender.port` to the end of the Jaeger collector
### Enable logging of spans
Set `opentracing.jaeger.log-spans` to `true`
### Use a probabilistic sampler
Set `opentracing.jaeger.probabilistic-sampler.sampling-rate` to a value between `0.0` (no sampling) and `1.0` (sampling of every request)
### Propagate headers in B3 format (for compatibility with Zipkin collectors)
Set `opentracing.jaeger.enable-b3-propagation` to `true`
## Advanced cases
### com.uber.jaeger.Tracer.Builder customization
Before creating the `Tracer` it is possible to provide arbitrary customizations to `Tracer.Builder` by providing a bean
of type `JaegerTracerCustomizer`
### Add custom reporter while maintaining the ability to autoconfigure standard ones with properties
By supplying a bean of `ReporterAppender` the user can add custom as many custom `Reporter` as needed without
having the forgo the ability to configure the standard reportes via auto-configuration
### Use OpenTracing's TracerResolver
If the user want's to construct the Tracer using `TracerResolver.resolveTracer` the property `opentracing.jaeger.useTracerResolver`
needs to be set to true (in addition of course to `opentracing.jaeger.enable` being set to true)
In such a case none of this project's defaults are used and neither are the other configuration properties consulted.
Check out the [documentation](https://github.com/jaegertracing/jaeger-client-java/blob/master/jaeger-core/README.md) of TracerResolver
for details on what properties need to be set.
Those properties mentioned in the documentation can be set using any method Spring Boot supports and are not limited
to System Properties and Environment Variables that TraceResolver supports out of the box
## Caution
### Beware of the default sampler in production
In a high traffic environment, the default sampler that is configured is very unsafe since it samples every request.
It is therefore highly recommended to explicitly configure on of the other options in a production environment
## Development
### Executing tests
In order for all tests to run correctly, the docker daemon need to be running on the system
Run the tests be executing
`mvn clean test`