istio_env_vars.txt

ISTIO_MIXER_PORT_9094_TCP_PROTO=tcp
ISTIO_INGRESS_PORT_443_TCP=tcp://10.0.0.69:443
ISTIO_MIXER_PORT_9091_TCP_ADDR=10.0.0.204
ISTIO_PILOT_SERVICE_PORT_HTTP_DISCOVERY=8080
ISTIO_PILOT_PORT_8081_TCP_ADDR=10.0.0.94
ISTIO_INGRESS_PORT_80_TCP_PORT=80
ISTIO_MIXER_PORT_9094_TCP_PORT=9094
ISTIO_INGRESS_PORT_443_TCP_PORT=443
ISTIO_MIXER_SERVICE_PORT_PROMETHEUS=42422
ISTIO_PILOT_PORT_8081_TCP=tcp://10.0.0.94:8081
ISTIO_PILOT_SERVICE_HOST=10.0.0.94
ISTIO_INGRESS_PORT_80_TCP_PROTO=tcp
ISTIO_MIXER_PORT_9091_TCP_PROTO=tcp
ISTIO_MIXER_PORT_42422_TCP_PORT=42422
ISTIO_INGRESS_PORT_443_TCP_PROTO=tcp
ISTIO_PILOT_PORT=tcp://10.0.0.94:8080
ISTIO_EGRESS_SERVICE_HOST=10.0.0.159
ISTIO_MIXER_SERVICE_PORT_CONFIGAPI=9094
ISTIO_INGRESS_SERVICE_HOST=10.0.0.69
ISTIO_EGRESS_PORT_80_TCP_ADDR=10.0.0.159
ISTIO_MIXER_PORT_42422_TCP_PROTO=tcp
ISTIO_EGRESS_SERVICE_PORT=80
ISTIO_INGRESS_SERVICE_PORT_HTTP=80
ISTIO_MIXER_PORT_42422_TCP_ADDR=10.0.0.204
ISTIO_MIXER_SERVICE_PORT=9091
ISTIO_MIXER_PORT_9091_TCP_PORT=9091
ISTIO_PILOT_PORT_8081_TCP_PROTO=tcp
ISTIO_PILOT_PORT_8080_TCP=tcp://10.0.0.94:8080
ISTIO_INGRESS_PORT=tcp://10.0.0.69:80
ISTIO_MIXER_PORT_9094_TCP_ADDR=10.0.0.204
ISTIO_EGRESS_PORT_80_TCP=tcp://10.0.0.159:80
ISTIO_EGRESS_PORT=tcp://10.0.0.159:80
ISTIO_PILOT_PORT_8081_TCP_PORT=8081
ISTIO_MIXER_PORT_42422_TCP=tcp://10.0.0.204:42422
ISTIO_EGRESS_PORT_80_TCP_PROTO=tcp
ISTIO_PILOT_SERVICE_PORT_HTTP_APISERVER=8081
ISTIO_MIXER_PORT_9094_TCP=tcp://10.0.0.204:9094
ISTIO_MIXER_SERVICE_HOST=10.0.0.204
ISTIO_PILOT_PORT_8080_TCP_PORT=8080
ISTIO_PILOT_PORT_8080_TCP_PROTO=tcp
ISTIO_EGRESS_PORT_80_TCP_PORT=80
ISTIO_INGRESS_PORT_80_TCP=tcp://10.0.0.69:80
ISTIO_INGRESS_SERVICE_PORT_HTTPS=443
ISTIO_INGRESS_SERVICE_PORT=80
ISTIO_MIXER_PORT_9091_TCP=tcp://10.0.0.204:9091
ISTIO_PILOT_SERVICE_PORT=8080
ISTIO_MIXER_PORT=tcp://10.0.0.204:9091
ISTIO_MIXER_SERVICE_PORT_TCP=9091
ISTIO_PILOT_PORT_8080_TCP_ADDR=10.0.0.94
ISTIO_INGRESS_PORT_80_TCP_ADDR=10.0.0.69
ISTIO_INGRESS_PORT_443_TCP_ADDR=10.0.0.69

logic_snippet.java

 httpClientBuilder.addInterceptor(new Interceptor() {
            @Override
            public Response intercept(Chain chain) throws IOException {
              //TODO get it form config
              int maxRetries = 5;
              Response response = null;
              int retries = 0;
              Request request = chain.request();
              do {
                try {
                  if (isNotNullOrEmpty(config.getUsername()) && isNotNullOrEmpty(config.getPassword())) {
                    Request authReq = chain.request().newBuilder().addHeader("Authorization", Credentials.basic(config.getUsername(), config.getPassword())).build();
                    response = chain.proceed(authReq);
                  } else if (isNotNullOrEmpty(config.getOauthToken())) {
                    Request authReq = chain.request().newBuilder().addHeader("Authorization", "Bearer " + config.getOauthToken()).build();
                    response = chain.proceed(authReq);
                  } else {
                    response = chain.proceed(request);
                  }
                } catch (IOException e) {
                  //TODO need to check if its specific exceptions which are OK to be retried
                  LOGGER.warn("Request failed retry {} ", retries);
                } finally {
                  try {
                    SECONDS.sleep(7);
                  } catch (InterruptedException e) {
                    //dont worry
                  }
                  retries++;
                }
              } while ((response == null || !response.isSuccessful()) && retries < maxRetries);

              return response == null?chain.proceed(request):response;
            }
          });