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Cannot find a way to configure Eureka client with Docker swarm mode

See original GitHub issue

When using Eureka client with Docker swarm mode, I didn’t find a way to correctly configure the client to notify the correct hostname / ip. With Docker swarm mode you have at least two networks (if the container exposes a port to the public network), the ingress and the overlay network used for internal cluster communication (the correct one to use for Eureka). The problem is that, in each container, you have two interfaces eth0 and eth1; these are assigned randomically to the ingress or overlay ip thus is not possible to benefit from spring.cloud.inetutils.ignoredInterfaces property. So what happens is that randomically Eureka clients advertise the correct host configuration. Did you have any similar case to this or is there a specific Eureka configuration that can help me with that?

Issue Analytics

  • State:closed
  • Created 6 years ago
  • Comments:25 (6 by maintainers)

github_iconTop GitHub Comments

19reactions
cecchisandronecommented, Mar 30, 2017

I have found two solutions to this problem:

  1. Specifying a custom network value in Docker swarm and using spring.cloud.inetutils.preferredNetworks property
  2. Using eureka.instance.hostName: service-name and eureka.instance.preferIpAddress: false, where service-name is the same service-name specified in the Docker compose file

What do you think about them?

12reactions
binakotcommented, Nov 23, 2017

UPDATE4:

Day 2️⃣. I added code below in all my spring-boot apps in a cluster.

@Configuration
public class EurekaClientConfig {

    @Bean
    @Autowired
    @Profile("docker")
    public EurekaInstanceConfigBean eurekaInstanceConfig(final InetUtils inetUtils) throws IOException {
        final String hostName = System.getenv("HOSTNAME");
        String hostAddress = null;

        final Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netInt : Collections.list(networkInterfaces)) {
            for (InetAddress inetAddress : Collections.list(netInt.getInetAddresses())) {
                if (hostName.equals(inetAddress.getHostName())) {
                    hostAddress = inetAddress.getHostAddress();
                }

                System.out.printf("%s: %s / %s\n", netInt.getName(),  inetAddress.getHostName(), inetAddress.getHostAddress());
            }
        }

        if (hostAddress == null) {
            throw new UnknownHostException("Cannot find ip address for hostname: " + hostName);
        }

        final EurekaInstanceConfigBean config = new EurekaInstanceConfigBean(inetUtils);
        config.setHostname(hostName);
        config.setIpAddress(hostAddress);
        return config;
    }
}

Lets check config and registry services.

Config:

eth2: 979c83c891fa / 10.0.0.3
eth1: 172.21.0.3 / 172.21.0.3
eth0: 10.255.0.4 / 10.255.0.4
lo: 10.0.0.2 / 10.0.0.2
lo: 10.255.0.3 / 10.255.0.3
lo: localhost / 127.0.0.1

<application>
  <name>CONFIG</name>
  <instance>
    <instanceId>config:b9701dfcc9f70001937fc53e9c3dbebb</instanceId>
    <hostName>10.0.0.3</hostName>
    <app>CONFIG</app>
    <ipAddr>10.0.0.3</ipAddr>
    <status>UP</status>
    <...>
  </instance>
</application>

Registry:

eth2: b2c8b40d16de / 10.0.0.5
eth1: 172.21.0.4 / 172.21.0.4
eth0: 10.255.0.6 / 10.255.0.6
lo: 10.0.0.4 / 10.0.0.4
lo: 10.255.0.5 / 10.255.0.5
lo: localhost / 127.0.0.1

<application>
  <name>REGISTRY</name>
  <instance>
    <instanceId>registry:07942e8b1a5cb63062d0caa7da9529f9</instanceId>
    <hostName>10.0.0.5</hostName>
    <app>REGISTRY</app>
    <ipAddr>10.0.0.5</ipAddr>
    <status>UP</status>
    <...>
  </instance>
</application>

Overlay network

[
    {
        "Name": "stack_default",
        "Id": "mnln7pi1y53chqcqfl5njmap3",
        "Created": "2017-11-23T05:37:47.3809552Z",
        "Scope": "swarm",
        "Driver": "overlay",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "10.0.0.0/24",
                    "Gateway": "10.0.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "5210e982c5dac5f60295fe8b838c0125ef57af59ef674109aaf311976f48ea90": {
                "Name": "stack_rabbitmq.1.9ai08boa6ts8v6aanwd3fpjbv",
                "EndpointID": "32d9066c6daaee194ebd771ea959b8783d012744fd564ca791776aa43faf2d96",
                "MacAddress": "02:42:0a:00:00:07",
                "IPv4Address": "10.0.0.7/24",
                "IPv6Address": ""
            },
            "979c83c891fa39b4d1ed3c2c95de9209eba15217afde8a5f115ab68c609381fa": {
                "Name": "stack_config.1.84it2lq7j67vmxeibtvp0q7eq",
                "EndpointID": "aee5c133b60f4b21c92f4b6196ef1a29ec4803414348b2363b41e240fbf788d8",
                "MacAddress": "02:42:0a:00:00:03",
                "IPv4Address": "10.0.0.3/24",
                "IPv6Address": ""
            },
            "b2c8b40d16de987d87d6ec6cd44acb036246249c1316daf0511b7a07ad41236d": {
                "Name": "stack_registry.1.x7j9gzh4gu1id44j60d0ilx8e",
                "EndpointID": "0126dd6894d961bfe4a6f7788dc1f5a6d9b20bc53021798a5e4c41126f4053b1",
                "MacAddress": "02:42:0a:00:00:05",
                "IPv4Address": "10.0.0.5/24",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.driver.overlay.vxlanid_list": "4097"
        },
        "Labels": {
            "com.docker.stack.namespace": "stack"
        },
        "Peers": [
            {
                "Name": "moby-e6a48a47d001",
                "IP": "192.168.65.2"
            }
        ]
    }
]

Remember, I asked about 10.0.0.2 / 10.0.0.2, 10.0.0.4 / 10.0.0.4 and so on which Eureka uses by default. Network interfaces show this one as Loopback. Actually every service in Docker Swarm has 3 loobpack and 3 eth interfaces. When we set to prefer 10.0 addresses in yaml configuration, we force to use this loopback, because the real eth hostname in hex format (979c83c891fa, b2c8b40d16de, etc).

Okay, we got correct IP addresses on Eureka server from their clients. But we lost other configurations: urls, ports and so on. That’s why requests to gateway and other communications through Eureka stop working…

We need something like this:

<application>
  <name>CONFIG</name>
  <instance>
    <instanceId>config:effc6bb2ad867575d2c83a451bd1c04b</instanceId>
    <hostName>10.0.0.16</hostName>
    <app>CONFIG</app>
    <ipAddr>10.0.0.16</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8888</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511418416077</registrationTimestamp>
      <lastRenewalTimestamp>1511418416077</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511418414924</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.16:8888/</homePageUrl>
    <statusPageUrl>http://10.0.0.16:8888/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.16:8888/health</healthCheckUrl>
    <vipAddress>config</vipAddress>
    <secureVipAddress>config</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511418416077</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511418265181</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
</application>

But with new custom EurekaClientConfig configuration we have:

<application>
  <name>CONFIG</name>
  <instance>
    <instanceId>config:1d4a762c49306da5e8038bfa74dd72b9</instanceId>
    <hostName>10.0.0.7</hostName>
    <app>CONFIG</app>
    <ipAddr>10.0.0.7</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">80</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511418992485</registrationTimestamp>
      <lastRenewalTimestamp>1511419172515</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511418991404</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.7:80/</homePageUrl>
    <statusPageUrl>http://10.0.0.7:80/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.7:80/health</healthCheckUrl>
    <vipAddress>config</vipAddress>
    <secureVipAddress>config</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511418992485</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511418869926</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
</application>

UPDATE5:

I override bean from autoconfiguration org.springframework.cloud.netflix.eureka. EurekaClientAutoConfiguration#eurekaInstanceConfigBean() like this:

@Configuration
@EnableConfigurationProperties
@Profile("docker")
public class EurekaClientConfig {

    private ConfigurableEnvironment env;
    private RelaxedPropertyResolver propertyResolver;

    public EurekaClientConfig(final ConfigurableEnvironment env) {
        this.env = env;
        this.propertyResolver = new RelaxedPropertyResolver(env);
    }

    @Bean
    @Primary
    public EurekaInstanceConfigBean eurekaInstanceConfigBean(final InetUtils inetUtils) throws IOException {
        final String hostName = System.getenv("HOSTNAME");
        String hostAddress = null;

        final Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
        for (NetworkInterface netInt : Collections.list(networkInterfaces)) {
            for (InetAddress inetAddress : Collections.list(netInt.getInetAddresses())) {
                if (hostName.equals(inetAddress.getHostName())) {
                    hostAddress = inetAddress.getHostAddress();
                }

                System.out.printf("Inet %s: %s / %s\n", netInt.getName(),  inetAddress.getHostName(), inetAddress.getHostAddress());
            }
        }
        if (hostAddress == null) {
            throw new UnknownHostException("Cannot find ip address for hostname: " + hostName);
        }

        final int nonSecurePort = Integer.valueOf(propertyResolver.getProperty("server.port", propertyResolver.getProperty("port", "8080")));

        final EurekaInstanceConfigBean instance = new EurekaInstanceConfigBean(inetUtils);
        instance.setHostname(hostName);
        instance.setIpAddress(hostAddress);
        instance.setNonSecurePort(nonSecurePort);
        System.out.println(instance);
        return instance;
    }
}

And now I got next Eureka client registration:

<application>
  <name>CONFIG</name>
  <instance>
    <instanceId>config:a1b85f942f8d075984ff6ca490b476b1</instanceId>
    <hostName>10.0.0.5</hostName>
    <app>CONFIG</app>
    <ipAddr>10.0.0.5</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8888</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511430156036</registrationTimestamp>
      <lastRenewalTimestamp>1511430252197</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511430131155</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.5:8888/</homePageUrl>
    <statusPageUrl>http://10.0.0.5:8888/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.5:8888/health</healthCheckUrl>
    <vipAddress>config</vipAddress>
    <secureVipAddress>config</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511430156036</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511430100452</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
</application>

And from container:

$ hostname
7aa5c788c463
$ hostname -i
10.0.0.5

It is exactly what I want ☕️ I need to test docker swarm scaling with replicas and my problem looks solved.

UPDATE6:

Finish 🥇 I got this works. Docker swarm service replications and Eureka are friends now.

eureka-final

<application>
  <name>TEMPLATE-SERVICE-1</name>
  <instance>
    <instanceId>template-service-1:431109dab3de8f77c471dc2719ba9c28</instanceId>
    <hostName>10.0.0.3</hostName>
    <app>TEMPLATE-SERVICE-1</app>
    <ipAddr>10.0.0.3</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8080</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511433565078</registrationTimestamp>
      <lastRenewalTimestamp>1511434508066</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511433517989</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.3:8080/</homePageUrl>
    <statusPageUrl>http://10.0.0.3:8080/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.3:8080/health</healthCheckUrl>
    <vipAddress>template-service-1</vipAddress>
    <secureVipAddress>template-service-1</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511433565078</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511433517697</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
  <instance>
    <instanceId>template-service-1:2bef4192a3106139a306e9ad07fdeac2</instanceId>
    <hostName>10.0.0.18</hostName>
    <app>TEMPLATE-SERVICE-1</app>
    <ipAddr>10.0.0.18</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8080</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511434087896</registrationTimestamp>
      <lastRenewalTimestamp>1511434508066</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511434087833</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.18:8080/</homePageUrl>
    <statusPageUrl>http://10.0.0.18:8080/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.18:8080/health</healthCheckUrl>
    <vipAddress>template-service-1</vipAddress>
    <secureVipAddress>template-service-1</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511434087896</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511434087766</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
</application>

<application>
  <name>TEMPLATE-SERVICE-2</name>
  <instance>
    <instanceId>template-service-2:4d066c17e11121460efb29fc82facd34</instanceId>
    <hostName>10.0.0.5</hostName>
    <app>TEMPLATE-SERVICE-2</app>
    <ipAddr>10.0.0.5</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8080</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511433565079</registrationTimestamp>
      <lastRenewalTimestamp>1511434506703</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511433517053</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.5:8080/</homePageUrl>
    <statusPageUrl>http://10.0.0.5:8080/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.5:8080/health</healthCheckUrl>
    <vipAddress>template-service-2</vipAddress>
    <secureVipAddress>template-service-2</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511433565079</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511433516707</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
  <instance>
    <instanceId>template-service-2:8f4e5399cb6c20d0384c1ac4327bf8da</instanceId>
    <hostName>10.0.0.20</hostName>
    <app>TEMPLATE-SERVICE-2</app>
    <ipAddr>10.0.0.20</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8080</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511434220315</registrationTimestamp>
      <lastRenewalTimestamp>1511434519656</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511434219932</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.20:8080/</homePageUrl>
    <statusPageUrl>http://10.0.0.20:8080/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.20:8080/health</healthCheckUrl>
    <vipAddress>template-service-2</vipAddress>
    <secureVipAddress>template-service-2</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511434220315</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511434219577</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
  <instance>
    <instanceId>template-service-2:96290f047823d00e46175f55b90c9cb2</instanceId>
    <hostName>10.0.0.19</hostName>
    <app>TEMPLATE-SERVICE-2</app>
    <ipAddr>10.0.0.19</ipAddr>
    <status>UP</status>
    <overriddenstatus>UNKNOWN</overriddenstatus>
    <port enabled="true">8080</port>
    <securePort enabled="false">443</securePort>
    <countryId>1</countryId>
    <dataCenterInfo class="com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo">
      <name>MyOwn</name>
    </dataCenterInfo>
    <leaseInfo>
      <renewalIntervalInSecs>30</renewalIntervalInSecs>
      <durationInSecs>90</durationInSecs>
      <registrationTimestamp>1511434221171</registrationTimestamp>
      <lastRenewalTimestamp>1511434520412</lastRenewalTimestamp>
      <evictionTimestamp>0</evictionTimestamp>
      <serviceUpTimestamp>1511434220659</serviceUpTimestamp>
    </leaseInfo>
    <metadata class="java.util.Collections$EmptyMap"/>
    <homePageUrl>http://10.0.0.19:8080/</homePageUrl>
    <statusPageUrl>http://10.0.0.19:8080/info</statusPageUrl>
    <healthCheckUrl>http://10.0.0.19:8080/health</healthCheckUrl>
    <vipAddress>template-service-2</vipAddress>
    <secureVipAddress>template-service-2</secureVipAddress>
    <isCoordinatingDiscoveryServer>false</isCoordinatingDiscoveryServer>
    <lastUpdatedTimestamp>1511434221171</lastUpdatedTimestamp>
    <lastDirtyTimestamp>1511434220463</lastDirtyTimestamp>
    <actionType>ADDED</actionType>
  </instance>
</application>

[
    {
        "Name": "stack_default",
        "Id": "vyei6hxull9le7ajma5n6r8gf",
        "Created": "2017-11-23T10:34:18.6336376Z",
        "Scope": "swarm",
        "Driver": "overlay",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "10.0.0.0/24",
                    "Gateway": "10.0.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "189f0ae2a2924ac45d844c957d9668030381f51a522c4d782c9c6806fc1d968b": {
                "Name": "stack_rabbitmq.1.lrpow8l5lxy051jsl1nhcxaje",
                "EndpointID": "990376d02a606c1a8bd7a61018321c6a99586245e0b233a40ba60d2877d76b86",
                "MacAddress": "02:42:0a:00:00:07",
                "IPv4Address": "10.0.0.7/24",
                "IPv6Address": ""
            },
            "1fef95280748ec36508c7b6d52a156f1332476211a9d7f5fb22e4d5e1f9e21d8": {
                "Name": "stack_template-service-2.3.2anjsglhw44jpxp47relufvv1",
                "EndpointID": "aa20fdd4d8cb783bb6eda8f191f4039f33464f94a43fec6f1a985514c285a32a",
                "MacAddress": "02:42:0a:00:00:14",
                "IPv4Address": "10.0.0.20/24",
                "IPv6Address": ""
            },
            "2a3af4cee6c8b14143c2408358aaebf0251fe3525fd6fc3a97c755518848c576": {
                "Name": "stack_monitor.1.rczns5q61fmflmwkmm2npl3iz",
                "EndpointID": "e70f108a4fff31a1445387bd549708b2e4a8a30d30e8173a3a5e083a61d4a860",
                "MacAddress": "02:42:0a:00:00:11",
                "IPv4Address": "10.0.0.17/24",
                "IPv6Address": ""
            },
            "6d06a459037fbed038b978353f4bd7838dcf049da35594a325cad6821aac7400": {
                "Name": "stack_registry.1.yecxlmhaezmnt2k76gzuw26jm",
                "EndpointID": "e6ee97f92c281b8a5cc64d800a474522c44daa5869dd5e01b0dce4746d557ccd",
                "MacAddress": "02:42:0a:00:00:0b",
                "IPv4Address": "10.0.0.11/24",
                "IPv6Address": ""
            },
            "a26eaa9094bef35a237d732c48f1771103f4874b62453a2bf98d7ba2da6b7653": {
                "Name": "stack_template-service-1.1.qpqya9b2ld8f5fl6if6evit0j",
                "EndpointID": "bcf7b2e685ee471652056963f9eb0d9e351ba969b14f813705a34c96e22931fc",
                "MacAddress": "02:42:0a:00:00:03",
                "IPv4Address": "10.0.0.3/24",
                "IPv6Address": ""
            },
            "aae4495d4012f9321fd1d69af5da3708b201e9bf95dea387a26d9865984cd0f7": {
                "Name": "stack_template-service-2.1.s6nvdc8cywj766t6h3wxssaam",
                "EndpointID": "48fb0ea7e8ad706a2f2a14c08b6ea1c16dabbb5664e86c449ed447d725c26d89",
                "MacAddress": "02:42:0a:00:00:05",
                "IPv4Address": "10.0.0.5/24",
                "IPv6Address": ""
            },
            "b84a6706b89d0d2ee2784385849ba3b7d094391cb8e6e445464f0b6f6e12e1a0": {
                "Name": "stack_config.1.6q03r8grjvq05ak9g0jgga3zg",
                "EndpointID": "c07ff9a1f5d5c302a0ca65104515994c004c4dbe1761ac12bc29a17ddedb3df9",
                "MacAddress": "02:42:0a:00:00:09",
                "IPv4Address": "10.0.0.9/24",
                "IPv6Address": ""
            },
            "cec008adc2e31257ab73ff495c709973e90ee54175c63947d0cf2b3ceec2734f": {
                "Name": "stack_auth.1.e3rw5edvumgzf3kq5078yvwsn",
                "EndpointID": "e79e03c37672cff86e5647e389bdcb50fc517f42d1d7561938743126e9995160",
                "MacAddress": "02:42:0a:00:00:0d",
                "IPv4Address": "10.0.0.13/24",
                "IPv6Address": ""
            },
            "d28b064353ba9776c0703eda529db61d47c1fb065e0494533fbfea7850e35544": {
                "Name": "stack_template-service-2.2.trxb2kaxg8uqvosf4sp887hcu",
                "EndpointID": "80ec6a0b57bdbec7b43b5e0784347292b9b5096384a0b49adbb47b9786b057cd",
                "MacAddress": "02:42:0a:00:00:13",
                "IPv4Address": "10.0.0.19/24",
                "IPv6Address": ""
            },
            "e3d0db794f525828b530f64900365bac9ff06bbd30cccd135556d0c8521c610b": {
                "Name": "stack_template-service-1.2.vl038gbz29jrralvhkp80ed7j",
                "EndpointID": "44d6fb2306db9ab936efbd7fb2c84e5691cf1ed4e845d178cff28c4db3ef030a",
                "MacAddress": "02:42:0a:00:00:12",
                "IPv4Address": "10.0.0.18/24",
                "IPv6Address": ""
            },
            "eec959f70e20d3c1ee4ee709ba6034d2d69a950628722c7d1435c3392d58ccaa": {
                "Name": "stack_gateway.1.r6expujs6l8q26htayzxc49ut",
                "EndpointID": "de7b895408d84eca063ee7ce032ac372ddbfc1e6d07881fc150e9935184eb9e8",
                "MacAddress": "02:42:0a:00:00:0f",
                "IPv4Address": "10.0.0.15/24",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.driver.overlay.vxlanid_list": "4097"
        },
        "Labels": {
            "com.docker.stack.namespace": "stack"
        },
        "Peers": [
            {
                "Name": "moby-e6a48a47d001",
                "IP": "192.168.65.2"
            }
        ]
    }
]

Even Hystrix Dashboard understands replicas count via Feign commucations:

hystrix

At this moment I think I solved my problem with Spring Cloud + Docker Swarm. If not, I let you know 😄

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