b8b1ff05ac
This moves to changes made in preparation of zipkin 1.0. Here are the notables: * Zipkin has autoconfiguration modules, where maven artifacts have the prefix 'zipkin-autoconfigure-X' * Zipkin's ui now shares a version with everything else * Zipkin now namespaces packages and configuration. ex zipkin.storage.X as opposed to zipkin.X * All autoconfiguration classes are prefixed `Zipkin` to be easier to find * Zipkin binds components like StorageComponent, as opposed to individual classes like SpanStore. * Health checks are under the scope "zipkin" and broken down by component * UI responsiveness is better by conditionally caching names queries for 5 minutes * New `Collector` class, which makes logging and metrics patterns the same regardless of transport
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Running Zipkin Server
There are 3 parts to Zipkin: the instrumented client apps, the backend database and the Zipkin server. The database for this implementation is MySQL.
There is a running instance on PWS: http://zipkin-web.cfapps.io. It is backed by a
zipkin-serverwith a MySQL backend and RabbitMQ (Spring Cloud Stream) for span transport.
Instrumenting Apps
Depend on Spring Cloud Sleuth Stream. Bind to a rabbit service (or redis if you prefer - normal Spring Cloud Stream process).
Zipkin Server
Depend on spring-cloud-sleuth-zipkin-stream and enable the server:
@SpringBootApplication
@EnableZipkinStreamServer
public class ZipkinStreamServerApplication {
public static void main(String[] args) throws Exception {
SpringApplication.run(ZipkinStreamServerApplication.class, args);
}
}
Zipkin has a web UI, which is enabled by default when you depend on io.zipkin.java:zipkin-autoconfigure-ui.
Bind to MySQL and the same Stream service that you did in the apps (rabbit, redis, kafka). Set spring.datasource.initialize=true the first time you start to initialize the database.
Uses the zipkin-server library from the OSS as well as spring-cloud-sleuth-stream.
NOTE: running in the "test" profile you don't need MySQL (the span store is in memory). You could even run in PWS without MySQL.