What if we would like to expose a single Swagger documentation for all microservices deployed on Kubernetes? Well, here things are getting complicated… We can run a container with Swagger UI, and map all paths exposed by the ingress manually, but it is not a good solution…
In that case, we can use Spring Cloud Kubernetes Ribbon one more time, this time together with Spring Cloud Netflix Zuul. Zuul will act as a gateway only for serving the Swagger API.
Here’s the list of dependencies used in my gateway-service project.
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-kubernetes</artifactId>
<version>0.3.0.BUILD-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-kubernetes-ribbon</artifactId>
<version>0.3.0.BUILD-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.9.2</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.9.2</version>
</dependency>
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