opentelemetry-jaeger

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opentelemetry-jaeger

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基于Jaeger、OpenTelemetry的链路追踪Demo.深入了解可观测体系Observability下Traces、Metrics原理

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# opentelemetry-jaeger-prometheus
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## Introduction
### 原理文档
- [链路数据如何传播](./docs/链路数据如何传播%20.md)
- [Opentelemetry自动构建Trace](./docs/自动构建.md)
### OpenTelemetry+Jaeger+Prometheus的分布式链路追踪演示案例
- Load Balance：Nginx
- Java：SpringBoot 
- Agent：OpenTelemetry + Jaeger Trace Exporter + Prometheus Metric Exporter
- 可视化：Jaeger UI 、Prometheus UI
深入了解可观测体系下Traces概念和运行原理 
 - ![Alt Text](https://raw.githubusercontent.com/laziobird/opentelemetry-jaeger/main/assets/introduce.gif)
 
## Architecture 
![image.png](https://raw.githubusercontent.com/laziobird/opentelemetry-jaeger/main/docs/arc.png)
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## Tracing 效果图
 ![image.png](https://raw.githubusercontent.com/laziobird/opentelemetry-jaeger/main/docs/trace.png)
## Prometheus 采集Metric 
 ![prometheus.jpg](https://raw.githubusercontent.com/laziobird/opentelemetry-jaeger/main/assets/prometheus.jpg)
## 框架列表
| **Library/Framework** | **Versions** | **备注** |
| --- | --- | --- |
| opentelemetry-api | 1.9.1 | |
| opentelemetry-java-instrumentation | 1.9.1 | Java探针 |
| opentelemetry-sdk | 1.9.1 | |
| opentelemetry-exporter-jaeger | 1.9.1 | |
| opentelemetry-semconv | 1.9.0-alpha | 目前只有alpha版本 |
| jaegertracing | all-in-one:1.29 | docker镜像 |
| spring-boot | 2.6.2 | JDK 1.8+ |
| nginx | 1.16.1 | |
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## Compiling project
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### Maven 编译Java 程序
```shell
mvn package -DskipTests=true
```
 - target下把对应jar包重命名`otel.jar`，放到`Dockerfile`文件同级目录
### Linux 
 - Docker 环境，三个服务部署在一台服务器上，网络Host模式
```shell
## down
docker-compose -f /path/docker-compose.yml down
## start
docker-compose -f /path/docker-compose.yml up -d
```
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### Mac
Mac 用Docker Host 模式很坑，建议网络 bridge模式
```yaml
networks:
 jaeger:
 
services: 
 jaeger:
 image: jaegertracing/all-in-one:1.29
 networks:
 - jaeger
```

## 非容器独立部署模式 
### java 程序
其中 opentelemetry-javaagent.jar 是探针 otel.jar 是我们编译 jar 包
```yaml
java -javaagent:/path/opentelemetry-javaagent.jar \
-Dotel.resource.attributes=service.name=trace-demo \
-Dotel.traces.exporter=jaeger \
-jar target/otel.jar
```
### Docker单独启 Jaeger
```yaml
docker run -d --name jaeger \
-p 5775:5775/udp \
-p 6831:6831/udp \
-p 6832:6832/udp \
-p 5778:5778 \
-p 16686:16686 \
-p 14268:14268 -p 14250:14250 -p 9411:9411 \
jaegertracing/all-in-one:1.27
```
### Docker单独启 Prometheus
```yaml
docker run -d \
 -p 9090:9090 \
 prom/prometheus
```
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## Documentation 
[https://github.com/open-telemetry/opentelemetry-java-instrumentation](https://github.com/open-telemetry/opentelemetry-java-instrumentation) [https://www.jaegertracing.io/docs/1.29/getting-started/](https://www.jaegertracing.io/docs/1.29/getting-started/) [https://opentelemetry.io/docs/](https://opentelemetry.io/docs/)
## 联系
如果有什么疑问和建议，欢迎提交issues，我会第一时间回复

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