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krenaut's avatar
krenaut
Occasional Contributor
6 years ago

Can't execute API with swagger ui behind NGINX Plus kubernetes ingress

I am unsuccessfully trying to make Swagger UI work inside my kubernetes cluster.   I am running NGINX Plus as my kubernetes ingress controller.   The ingress is re-writing the URL path.   ...
Swagger UI
  • krenaut's avatar
    krenaut
    6 years ago

    I was able to get this working using a combination of the stand alone UI and the following code snippet in my SwaggerConfig.

     

            // if running in kubernetes change the pathMapping and force https

            // the KUBERNETES_SERVICE_HOST environment variable is always set by kubernetes.

            // So I am using it to detect that we are running on kubernetes

            // I then set the pathMapping to include the portion of the path that

            // kubernetes prepends (in this case /dev/hell-world/hello )

            // then I also force the protocol to HTTPS

            if (System.getenv("KUBERNETES_SERVICE_HOST") != null) {

                log.debug("Kubernetes detected! Setting pathMapping to: " + kubePath);

                docket.pathMapping(kubePath);

                docket.protocols(newHashSet("https"));

            }

krenaut's avatar
krenaut
Occasional Contributor

It appears that the issue is the conversion from HTTPS to HTTP.  I think because the spring boot app is written and plain HTTP that must appear in the API definition somewhere.  But the reverse proxy expects HTTPS.  Is there someway I can force Swagger UI to access the API with HTTPS even tho its coded as HTTP?

krenaut's avatar
krenaut
Occasional Contributor
6 years ago

I was able to get this working using a combination of the stand alone UI and the following code snippet in my SwaggerConfig.

 

        // if running in kubernetes change the pathMapping and force https

        // the KUBERNETES_SERVICE_HOST environment variable is always set by kubernetes.

        // So I am using it to detect that we are running on kubernetes

        // I then set the pathMapping to include the portion of the path that

        // kubernetes prepends (in this case /dev/hell-world/hello )

        // then I also force the protocol to HTTPS

        if (System.getenv("KUBERNETES_SERVICE_HOST") != null) {

            log.debug("Kubernetes detected! Setting pathMapping to: " + kubePath);

            docket.pathMapping(kubePath);

            docket.protocols(newHashSet("https"));

        }