spring-35-36-spring-cloud

2026-06-20 11:14:34 +00:00 · 2025-12-02 21:38:02 +03:00
parent 16920a4326
commit f061675f1e
41 changed files with 1170 additions and 0 deletions
@@ -0,0 +1,121 @@
+import io.spring.gradle.dependencymanagement.dsl.DependencyManagementExtension
+import name.remal.gradle_plugins.sonarlint.SonarLintExtension
+import org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES
+import org.gradle.plugins.ide.idea.model.IdeaLanguageLevel
+import org.springframework.boot.gradle.plugin.SpringBootPlugin
+
+plugins {
+    idea
+    id("fr.brouillard.oss.gradle.jgitver")
+    id("io.spring.dependency-management")
+    id("org.springframework.boot") apply false
+    id("name.remal.sonarlint") apply false
+    id("com.diffplug.spotless") apply false
+}
+
+allprojects {
+    group = "ru.demo"
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+
+    val springCloudVersion: String by project
+    val logbackEncoder: String by project
+
+    apply(plugin = "io.spring.dependency-management")
+    dependencyManagement {
+        dependencies {
+            imports {
+                mavenBom(BOM_COORDINATES)
+                mavenBom("org.springframework.cloud:spring-cloud-dependencies:$springCloudVersion")
+            }
+            dependency("net.logstash.logback:logstash-logback-encoder:$logbackEncoder")
+        }
+    }
+
+    configurations.all {
+        resolutionStrategy {
+            failOnVersionConflict()
+
+            force("org.glassfish.hk2.external:aopalliance-repackaged:3.1.1")
+            force("org.glassfish.hk2:hk2-utils:3.1.1")
+            force("commons-logging:commons-logging:1.3.1")
+            force("com.fasterxml.woodstox:woodstox-core:6.6.2")
+            force("org.glassfish.hk2:hk2-api:3.1.1")
+            force("org.apache.httpcomponents:httpclient:4.5.14")
+            force("org.sonarsource.analyzer-commons:sonar-analyzer-commons:2.11.0.2861")
+            force("org.sonarsource.analyzer-commons:sonar-xml-parsing:2.11.0.2861")
+            force("org.sonarsource.sslr:sslr-core:1.24.0.633")
+            force("org.sonarsource.analyzer-commons:sonar-analyzer-recognizers:2.11.0.2861")
+            force("commons-io:commons-io:2.15.1")
+            force("com.google.guava:guava:32.1.3-jre")
+            force("com.google.code.findbugs:jsr305:3.0.2")
+            force("org.codehaus.woodstox:stax2-api:4.2.2")
+            force("io.opentelemetry:opentelemetry-api-incubator:1.38.0-alpha")
+        }
+    }
+}
+
+subprojects {
+    plugins.apply(SpringBootPlugin::class.java)
+    plugins.apply(JavaPlugin::class.java)
+    extensions.configure<JavaPluginExtension> {
+        sourceCompatibility = JavaVersion.VERSION_21
+        targetCompatibility = JavaVersion.VERSION_21
+    }
+
+    tasks.withType<JavaCompile> {
+        options.encoding = "UTF-8"
+        options.compilerArgs.addAll(listOf("-Xlint:all,-serial,-processing"))
+
+        dependsOn("spotlessApply")
+    }
+
+    apply<name.remal.gradle_plugins.sonarlint.SonarLintPlugin>()
+    configure<SonarLintExtension> {
+        nodeJs {
+            detectNodeJs = false
+            logNodeJsNotFound = false
+        }
+    }
+    apply<com.diffplug.gradle.spotless.SpotlessPlugin>()
+    configure<com.diffplug.gradle.spotless.SpotlessExtension> {
+        java {
+            palantirJavaFormat("2.38.0")
+        }
+    }
+
+    plugins.apply(fr.brouillard.oss.gradle.plugins.JGitverPlugin::class.java)
+    extensions.configure<fr.brouillard.oss.gradle.plugins.JGitverPluginExtension> {
+        strategy("PATTERN")
+        nonQualifierBranches("main,master")
+        tagVersionPattern("\${v}\${<meta.DIRTY_TEXT}")
+        versionPattern(
+            "\${v}\${<meta.COMMIT_DISTANCE}\${<meta.GIT_SHA1_8}" +
+                    "\${<meta.QUALIFIED_BRANCH_NAME}\${<meta.DIRTY_TEXT}-SNAPSHOT"
+        )
+    }
+
+    tasks.withType<Test> {
+        useJUnitPlatform()
+        testLogging.showExceptions = true
+        reports {
+            junitXml.required.set(true)
+            html.required.set(true)
+        }
+    }
+}
+
+tasks {
+    val managedVersions by registering {
+        doLast {
+            project.extensions.getByType<DependencyManagementExtension>()
+                .managedVersions
+                .toSortedMap()
+                .map { "${it.key}:${it.value}" }
+                .forEach(::println)
+        }
+    }
+}
@@ -0,0 +1,38 @@
+plugins {
+    id("com.google.cloud.tools.jib")
+}
+
+dependencies {
+    implementation(project(":kafka-log-appender"))
+    implementation("net.logstash.logback:logstash-logback-encoder")
+
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
+    implementation("io.micrometer:micrometer-registry-prometheus")
+
+    implementation("org.springframework.cloud:spring-cloud-starter-config")
+    implementation ("org.springframework.cloud:spring-cloud-starter-netflix-eureka-server")
+
+    implementation("io.micrometer:micrometer-tracing-bridge-otel") // bridges the Micrometer Observation API to OpenTelemetry.
+    implementation("io.opentelemetry:opentelemetry-exporter-zipkin") // reports traces to Zipkin.
+}
+
+jib {
+    container {
+        creationTime.set("USE_CURRENT_TIMESTAMP")
+    }
+    from {
+        image = "bellsoft/liberica-openjdk-alpine-musl:21.0.1"
+    }
+
+    to {
+        image = "localrun/eureka-server"
+        tags = setOf(project.version.toString())
+    }
+}
+
+tasks {
+    build {
+        dependsOn(spotlessApply)
+        dependsOn(jibBuildTar)
+    }
+}
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+../gradlew :eureka-server:build
+
+docker load --input build/jib-image.tar
+
+docker stop eureka-server
+
+
+docker run --rm -d --name eureka-server \
+--memory=512m \
+--cpus 1 \
+--network="host" \
+-v $HOME/.ssh:/root/.ssh \
+-e JAVA_TOOL_OPTIONS="-XX:InitialRAMPercentage=80 -XX:MaxRAMPercentage=80" \
+localrun/eureka-server:latest
+
+
@@ -0,0 +1,15 @@
+# -------Gradle--------
+org.gradle.jvmargs=-Xmx4g
+org.gradle.daemon=true
+org.gradle.parallel=true
+# -------Plugins---------
+jgitver=0.10.0-rc03
+dependencyManagement=1.1.5
+springframeworkBoot=3.3.1
+springCloudVersion=2023.0.3
+
+sonarlint=4.2.4
+spotless=6.25.0
+jib=3.4.5
+# -------Versions--------
+logbackEncoder=8.0
@@ -0,0 +1,10 @@
+dependencies {
+    implementation("ch.qos.logback:logback-classic")
+    implementation ("org.apache.kafka:kafka-clients")
+}
+
+tasks {
+    bootJar {
+        enabled = false
+    }
+}
@@ -0,0 +1,8 @@
+package ru.appender.kafka;
+
+public class AppenderException extends RuntimeException {
+
+    public AppenderException(String message) {
+        super(message);
+    }
+}
@@ -0,0 +1,5 @@
+package ru.appender.kafka;
+
+import java.util.function.Consumer;
+
+public interface ErrorMsgConsumer extends Consumer<String> {}
@@ -0,0 +1,84 @@
+package ru.appender.kafka;
+
+import ch.qos.logback.classic.spi.LoggingEvent;
+import ch.qos.logback.core.UnsynchronizedAppenderBase;
+import ch.qos.logback.core.encoder.Encoder;
+import java.util.Queue;
+import java.util.concurrent.ArrayBlockingQueue;
+
+public class LogAppender extends UnsynchronizedAppenderBase<LoggingEvent> {
+    private static final String MESSAGE_TEMPLATE = "[Kafka appender] %s";
+
+    private String bootstrapServers;
+    private String topicName;
+
+    private final Queue<LoggingEvent> eventsQueue = new ArrayBlockingQueue<>(1000);
+
+    private Thread senderThread;
+    private Encoder<LoggingEvent> encoder;
+
+    private final ErrorMsgConsumer errorMsgConsumer = error -> addError(String.format(MESSAGE_TEMPLATE, error));
+
+    public void setEncoder(Encoder<LoggingEvent> encoder) {
+        this.encoder = encoder;
+    }
+
+    public void setBootstrapServers(String bootstrapServers) {
+        this.bootstrapServers = bootstrapServers;
+        addInfo(String.format(MESSAGE_TEMPLATE, "set bootstrapServers:" + bootstrapServers));
+    }
+
+    public void setTopicName(String topicName) {
+        this.topicName = topicName;
+        addInfo(String.format(MESSAGE_TEMPLATE, "set topicName:" + topicName));
+    }
+
+    @Override
+    public void start() {
+        if (bootstrapServers == null) {
+            addError(String.format(MESSAGE_TEMPLATE, "bootstrapServers is null"));
+            return;
+        }
+
+        if (topicName == null) {
+            addError(String.format(MESSAGE_TEMPLATE, "topicName is null"));
+            return;
+        }
+        var logProducer = new LogProducer(bootstrapServers, topicName);
+
+        senderThread = Thread.ofVirtual().name("senderThread").start(() -> sendMessages(logProducer));
+        super.start();
+        addInfo(String.format(MESSAGE_TEMPLATE, "started"));
+    }
+
+    @Override
+    public void stop() {
+        super.stop();
+        if (senderThread != null) {
+            senderThread.interrupt();
+        }
+        addInfo(String.format(MESSAGE_TEMPLATE, "stopped"));
+    }
+
+    @Override
+    public void append(LoggingEvent eventObject) {
+        var result = eventsQueue.offer(eventObject);
+        if (!result) {
+            addWarn(String.format(MESSAGE_TEMPLATE, "eventsQueue is full"));
+        }
+    }
+
+    private void sendMessages(LogProducer logProducer) {
+        while (!Thread.currentThread().isInterrupted()) {
+            var event = eventsQueue.poll();
+            if (event != null) {
+                try {
+                    var messageAsText = new String(encoder.encode(event));
+                    logProducer.send(messageAsText, errorMsgConsumer);
+                } catch (Exception ex) {
+                    addError(String.format(MESSAGE_TEMPLATE, ex.getMessage()));
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,56 @@
+package ru.appender.kafka;
+
+import static org.apache.kafka.clients.CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG;
+import static org.apache.kafka.clients.CommonClientConfigs.CLIENT_ID_CONFIG;
+import static org.apache.kafka.clients.CommonClientConfigs.RETRIES_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.ACKS_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.BATCH_SIZE_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.BUFFER_MEMORY_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.LINGER_MS_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.MAX_BLOCK_MS_CONFIG;
+import static org.apache.kafka.clients.producer.ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG;
+
+import java.util.Properties;
+import java.util.function.Consumer;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import org.apache.kafka.common.serialization.StringSerializer;
+
+public class LogProducer {
+    private final KafkaProducer<String, String> kafkaProducer;
+    private final String topicName;
+    private long lastSendKey = System.currentTimeMillis();
+
+    public LogProducer(String bootstrapServers, String topicName) {
+        this.topicName = topicName;
+        Properties props = new Properties();
+        props.put(CLIENT_ID_CONFIG, "myKafkaProducer");
+        props.put(BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
+        props.put(ACKS_CONFIG, "1");
+        props.put(RETRIES_CONFIG, 1);
+        props.put(BATCH_SIZE_CONFIG, 16384);
+        props.put(LINGER_MS_CONFIG, 10);
+        props.put(BUFFER_MEMORY_CONFIG, 33_554_432); // bytes
+        props.put(MAX_BLOCK_MS_CONFIG, 1_000); // ms
+        props.put(KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
+        props.put(VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
+
+        kafkaProducer = new KafkaProducer<>(props);
+
+        Runtime.getRuntime().addShutdownHook(new Thread(this::close));
+    }
+
+    public void send(String value, Consumer<String> errorCallback) {
+        var key = lastSendKey++;
+        kafkaProducer.send(new ProducerRecord<>(topicName, String.valueOf(key), value), (metadata, exception) -> {
+            if (exception != null) {
+                errorCallback.accept(String.format(exception.getMessage()));
+            }
+        });
+    }
+
+    public void close() {
+        kafkaProducer.close();
+    }
+}
@@ -0,0 +1,14 @@
+dependencies {
+    implementation(project(":kafka-log-appender"))
+    implementation("net.logstash.logback:logstash-logback-encoder")
+
+    implementation ("org.springframework.boot:spring-boot-starter-web")
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
+    implementation("io.micrometer:micrometer-registry-prometheus")
+
+    implementation("org.springframework.cloud:spring-cloud-starter-config")
+    implementation("org.springframework.cloud:spring-cloud-starter-netflix-eureka-client")
+
+    implementation("io.micrometer:micrometer-tracing-bridge-otel") // bridges the Micrometer Observation API to OpenTelemetry.
+    implementation("io.opentelemetry:opentelemetry-exporter-zipkin") // reports traces to Zipkin.
+}
@@ -0,0 +1,11 @@
+package ru.demo;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+
+@SpringBootApplication
+public class ServiceClientInfo {
+    public static void main(String[] args) {
+        new SpringApplicationBuilder().sources(ServiceClientInfo.class).run(args);
+    }
+}
@@ -0,0 +1,19 @@
+package ru.demo.config;
+
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.filter.OncePerRequestFilter;
+import ru.demo.filter.MdcFilter;
+
+@Configuration
+public class ApplConf {
+
+    @Bean
+    public FilterRegistrationBean<OncePerRequestFilter> mdcFilterRegistrationBean() {
+        var registrationBean = new FilterRegistrationBean<OncePerRequestFilter>();
+        registrationBean.setFilter(new MdcFilter());
+        registrationBean.setOrder(1);
+        return registrationBean;
+    }
+}
@@ -0,0 +1,30 @@
+package ru.demo.controller;
+
+import java.time.Duration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import ru.demo.model.ClientData;
+
+@RestController
+public class ClientInfoController {
+    private static final Logger logger = LoggerFactory.getLogger(ClientInfoController.class);
+
+    // curl -v http://localhost:8083/additional-info?name="testClient"
+
+    // docker run -d --rm -p 9411:9411 openzipkin/zipkin
+    // http://localhost:9411
+
+    @GetMapping(value = "/additional-info")
+    public ClientData info(@RequestParam(name = "name") String name) throws InterruptedException {
+        logger.info("request. name:{}", name);
+        doJob();
+        return new ClientData(String.format("additional ClientInfo name:%s", name));
+    }
+
+    private void doJob() throws InterruptedException {
+        Thread.sleep(Duration.ofMillis(100));
+    }
+}
@@ -0,0 +1,39 @@
+package ru.demo.filter;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.ArrayList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+public class MdcFilter extends OncePerRequestFilter {
+    private final Logger log = LoggerFactory.getLogger(MdcFilter.class);
+    private static final String HEADER_X_REQUEST_ID = "X-Request-Id";
+    private static final String MDC_REQUEST_ID = "requestId";
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
+            throws ServletException, IOException {
+        var xRequestId = request.getHeader(HEADER_X_REQUEST_ID);
+        log.info("method:{}, xRequestId:{}", request.getMethod(), xRequestId);
+        if (xRequestId != null) {
+            MDC.put(MDC_REQUEST_ID, xRequestId);
+        }
+
+        var headerIterator = request.getHeaderNames().asIterator();
+        var headers = new ArrayList<String>();
+        while (headerIterator.hasNext()) {
+            headers.add(headerIterator.next());
+        }
+        log.info("request headers:{}", headers);
+
+        response.addHeader(HEADER_X_REQUEST_ID, xRequestId);
+        filterChain.doFilter(request, response);
+        MDC.remove(MDC_REQUEST_ID);
+    }
+}
@@ -0,0 +1,3 @@
+package ru.demo.model;
+
+public record ClientData(String data) {}
@@ -0,0 +1,16 @@
+spring:
+  application:
+    name: service-client-info
+  cloud:
+    config:
+      fail-fast: true
+      retry:
+        initial-interval: 5000
+        max-attempts: 10
+        max-interval: 5000
+        multiplier: 1.2
+  config:
+    import: optional:configserver:http://localhost:8888
+  codec:
+    max-in-memory-size: 10MB
+
@@ -0,0 +1,26 @@
+<configuration scan="true" scanPeriod="10 seconds">
+    <jmxConfigurator />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - [%X{requestId}] %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="kafka" class="ru.appender.kafka.LogAppender">
+        <bootstrapServers>localhost:9092</bootstrapServers>
+        <topicName>applLogs</topicName>
+        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
+            <fieldNames>
+                <version>[ignore]</version>
+            </fieldNames>
+            <customFields>{"appname":"service-client-info"}</customFields>
+            <includeMdcKeyName>requestId</includeMdcKeyName>
+        </encoder>
+    </appender>
+
+    <root level="info">
+        <appender-ref ref="STDOUT" />
+        <appender-ref ref="kafka" />
+    </root>
+</configuration>
@@ -0,0 +1,19 @@
+dependencies {
+    implementation(project(":kafka-log-appender"))
+    implementation("net.logstash.logback:logstash-logback-encoder")
+
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
+    implementation("io.micrometer:micrometer-registry-prometheus")
+
+    implementation("org.springframework.boot:spring-boot-starter-web")
+
+    implementation("org.springframework.cloud:spring-cloud-starter-config")
+    implementation("org.springframework.cloud:spring-cloud-starter-netflix-eureka-client")
+    implementation("org.springframework.cloud:spring-cloud-starter-openfeign")
+
+    implementation("io.micrometer:micrometer-tracing-bridge-otel") // bridges the Micrometer Observation API to OpenTelemetry.
+    implementation("io.opentelemetry:opentelemetry-exporter-zipkin") // reports traces to Zipkin.
+    implementation("io.github.openfeign:feign-micrometer")
+
+    implementation("org.springframework.cloud:spring-cloud-starter-circuitbreaker-resilience4j")
+}
@@ -0,0 +1,12 @@
+package ru.demo;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+
+@SpringBootApplication
+public class ServiceClient {
+    public static void main(String[] args) {
+
+        new SpringApplicationBuilder().sources(ServiceClient.class).run(args);
+    }
+}
@@ -0,0 +1,23 @@
+package ru.demo.config;
+
+import feign.RequestTemplate;
+import feign.codec.EncodeException;
+import feign.codec.Encoder;
+import java.lang.reflect.Type;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class RequestEncoder implements Encoder {
+    private static final Logger log = LoggerFactory.getLogger(RequestEncoder.class);
+    private final Encoder defaultEncoder;
+
+    public RequestEncoder(Encoder defaultEncoder) {
+        this.defaultEncoder = defaultEncoder;
+    }
+
+    @Override
+    public void encode(Object object, Type bodyType, RequestTemplate template) throws EncodeException {
+        log.info("encode value:{}", object);
+        defaultEncoder.encode(object, bodyType, template);
+    }
+}
@@ -0,0 +1,30 @@
+package ru.demo.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import feign.FeignException;
+import feign.Response;
+import feign.codec.Decoder;
+import java.io.IOException;
+import java.lang.reflect.Type;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import ru.demo.model.ClientData;
+
+public class ResponseDecoder implements Decoder {
+    private static final Logger log = LoggerFactory.getLogger(ResponseDecoder.class);
+
+    private final Decoder defaultDecoder;
+    private final ObjectMapper mapper;
+
+    public ResponseDecoder(Decoder defaultDecoder, ObjectMapper mapper) {
+        this.defaultDecoder = defaultDecoder;
+        this.mapper = mapper;
+    }
+
+    @Override
+    public ClientData decode(Response response, Type type) throws IOException, FeignException {
+        var responseAsString = (String) defaultDecoder.decode(response, String.class);
+        log.info("response:{}", responseAsString);
+        return mapper.readValue(responseAsString, ClientData.class);
+    }
+}
@@ -0,0 +1,106 @@
+package ru.demo.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import feign.Contract;
+import feign.Feign;
+import feign.Logger;
+import feign.Retryer;
+import feign.codec.Decoder;
+import feign.codec.Encoder;
+import feign.micrometer.MicrometerCapability;
+import feign.micrometer.MicrometerObservationCapability;
+import io.github.resilience4j.circuitbreaker.CircuitBreakerConfig;
+import io.github.resilience4j.ratelimiter.RateLimiter;
+import io.github.resilience4j.ratelimiter.RateLimiterConfig;
+import io.github.resilience4j.timelimiter.TimeLimiterConfig;
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.observation.ObservationRegistry;
+import java.time.Duration;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.cloud.circuitbreaker.resilience4j.Resilience4JCircuitBreakerFactory;
+import org.springframework.cloud.circuitbreaker.resilience4j.Resilience4JConfigBuilder;
+import org.springframework.cloud.client.circuitbreaker.CircuitBreaker;
+import org.springframework.cloud.client.circuitbreaker.CircuitBreakerFactory;
+import org.springframework.cloud.client.circuitbreaker.Customizer;
+import org.springframework.cloud.openfeign.FeignClientsConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+import org.springframework.web.filter.OncePerRequestFilter;
+import ru.demo.controller.ClientAdditionalInfoClient;
+import ru.demo.filter.MdcFilter;
+import ru.demo.metrics.MetricsManager;
+import ru.demo.metrics.MicrometerMetricsManager;
+
+@Configuration
+@Import(FeignClientsConfiguration.class)
+public class ServiceClientApplConf {
+
+    @Bean
+    public RateLimiterConfig rateLimiterConfig() {
+        return RateLimiterConfig.custom()
+                .timeoutDuration(Duration.ofMillis(100))
+                .limitRefreshPeriod(Duration.ofSeconds(1))
+                .limitForPeriod(1000)
+                .build();
+    }
+
+    @Bean
+    public RateLimiter rateLimiter(RateLimiterConfig config) {
+        return RateLimiter.of("defaultRateLimiter", config);
+    }
+
+    @Bean
+    public Customizer<Resilience4JCircuitBreakerFactory> defaultCustomizer() {
+        return factory -> factory.configureDefault(id -> new Resilience4JConfigBuilder(id)
+                .timeLimiterConfig(TimeLimiterConfig.custom()
+                        .timeoutDuration(Duration.ofSeconds(5))
+                        .build())
+                .circuitBreakerConfig(CircuitBreakerConfig.ofDefaults())
+                .build());
+    }
+
+    @Bean
+    public CircuitBreaker circuitBreaker(CircuitBreakerFactory<?, ?> circuitBreakerFactory) {
+        return circuitBreakerFactory.create("defaultCircuitBreaker");
+    }
+
+    @Bean
+    public FilterRegistrationBean<OncePerRequestFilter> mdcFilterRegistrationBean() {
+        var registrationBean = new FilterRegistrationBean<OncePerRequestFilter>();
+        registrationBean.setFilter(new MdcFilter());
+        registrationBean.setOrder(1);
+        return registrationBean;
+    }
+
+    @Bean
+    public ObjectMapper objectMapper() {
+        return JsonMapper.builder().build();
+    }
+
+    @Bean
+    public ClientAdditionalInfoClient clientAdditionalInfoClient(
+            Decoder decoder,
+            Encoder encoder,
+            Contract contract,
+            ObjectMapper mapper,
+            MeterRegistry meterRegistry,
+            ObservationRegistry observationRegistry) {
+
+        return Feign.builder()
+                .encoder(new RequestEncoder(encoder))
+                .decoder(new ResponseDecoder(decoder, mapper))
+                .contract(contract)
+                .logLevel(Logger.Level.FULL)
+                .addCapability(new MicrometerObservationCapability(observationRegistry)) // <-- THIS IS NEW
+                .addCapability(new MicrometerCapability(meterRegistry)) // <-- THIS IS NEW
+                .retryer(new Retryer.Default(500, 5_000, 10))
+                .target(ClientAdditionalInfoClient.class, "http");
+    }
+
+    @Bean
+    public MetricsManager micrometerMetricsManager(MeterRegistry meterRegistry) {
+        return new MicrometerMetricsManager(meterRegistry);
+    }
+}
@@ -0,0 +1,16 @@
+package ru.demo.controller;
+
+import static ru.demo.filter.MdcFilter.HEADER_X_REQUEST_ID;
+
+import java.net.URI;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestParam;
+import ru.demo.model.ClientData;
+
+public interface ClientAdditionalInfoClient {
+
+    @GetMapping(value = "/additional-info", consumes = "application/json")
+    ClientData additionalInfo(
+            @RequestHeader(HEADER_X_REQUEST_ID) String xRequestId, URI baseUri, @RequestParam("name") String nameVal);
+}
@@ -0,0 +1,90 @@
+package ru.demo.controller;
+
+import static ru.demo.filter.MdcFilter.MDC_REQUEST_ID;
+import static ru.demo.metrics.Meter.REQUEST_COUNTER;
+
+import com.netflix.discovery.EurekaClient;
+import io.github.resilience4j.core.functions.CheckedFunction;
+import io.github.resilience4j.ratelimiter.RateLimiter;
+import java.net.URI;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+import org.springframework.cloud.client.circuitbreaker.CircuitBreaker;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import ru.demo.metrics.Meter;
+import ru.demo.metrics.MetricsManager;
+import ru.demo.model.RequestForData;
+
+@RestController
+public class ClientController {
+    private static final Logger log = LoggerFactory.getLogger(ClientController.class);
+
+    private final MetricsManager metricsManager;
+    private final ClientAdditionalInfoClient clientAdditionalInfoClient;
+    private final EurekaClient discoveryClient;
+    private final CheckedFunction<RequestForData, String> getAdditionalInfoFunction;
+
+    // curl -v -H "X-Request-Id: 123" http://localhost:8081/info?name="testClient"
+
+    public ClientController(
+            MetricsManager metricsManager,
+            ClientAdditionalInfoClient clientAdditionalInfoClient,
+            EurekaClient discoveryClient,
+            CircuitBreaker circuitBreaker,
+            RateLimiter rateLimiter) {
+        this.metricsManager = metricsManager;
+        this.clientAdditionalInfoClient = clientAdditionalInfoClient;
+        this.discoveryClient = discoveryClient;
+
+        this.getAdditionalInfoFunction = RateLimiter.decorateCheckedFunction(
+                rateLimiter,
+                requestForData -> circuitBreaker.run(() -> doRequest(requestForData), t -> {
+                    log.error("delay call failed error:{}", t.getMessage());
+                    return "unknown info";
+                }));
+    }
+
+    @GetMapping(value = "/info")
+    public String info(@RequestParam(name = "name") String name) {
+        var startTime = System.currentTimeMillis();
+        metricsManager.incrementValue(REQUEST_COUNTER);
+        log.info("request. name:{}", name);
+        String additionalInfo = null;
+        try {
+            additionalInfo = getAdditionalInfoFunction.apply(new RequestForData(name, MDC.get(MDC_REQUEST_ID)));
+        } catch (Throwable ex) {
+            log.error("can't execute additional info, name:{}, error:{}", name, ex.getMessage());
+        }
+        var requestResult = String.format("ClientInfo name:%s, additional:%s", name, additionalInfo);
+
+        var duration = System.currentTimeMillis() - startTime;
+        metricsManager.putValue(Meter.REQUEST_DURATION, duration);
+        return requestResult;
+    }
+
+    private String doRequest(RequestForData requestForData) {
+        try {
+            MDC.put(MDC_REQUEST_ID, requestForData.requestId());
+            return getAdditionalInfo(requestForData.name());
+        } finally {
+            MDC.remove(MDC_REQUEST_ID);
+        }
+    }
+
+    private String getAdditionalInfo(String name) {
+        try {
+            var clientInfo = discoveryClient.getNextServerFromEureka("SERVICE-CLIENT-INFO", false);
+            log.info("clientInfo from Eureka:{}", clientInfo);
+            var additionalInfo = clientAdditionalInfoClient.additionalInfo(
+                    MDC.get(MDC_REQUEST_ID), new URI(clientInfo.getHomePageUrl()), name);
+            log.info("additionalInfo:{}", additionalInfo);
+            return additionalInfo.data();
+        } catch (Exception ex) {
+            log.error("can't get additional info, name:{}, error:{}", name, ex.getMessage());
+            return null;
+        }
+    }
+}
@@ -0,0 +1,38 @@
+package ru.demo.filter;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.ArrayList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+public class MdcFilter extends OncePerRequestFilter {
+    public static final String HEADER_X_REQUEST_ID = "X-Request-Id";
+    public static final String MDC_REQUEST_ID = "requestId";
+    private final Logger log = LoggerFactory.getLogger(MdcFilter.class);
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
+            throws ServletException, IOException {
+        var xRequestId = request.getHeader(HEADER_X_REQUEST_ID);
+        log.debug("xRequestId:{}", xRequestId);
+        if (xRequestId != null) {
+            MDC.put(MDC_REQUEST_ID, xRequestId);
+        }
+        var headerIterator = request.getHeaderNames().asIterator();
+        var headers = new ArrayList<String>();
+        while (headerIterator.hasNext()) {
+            headers.add(headerIterator.next());
+        }
+        log.debug("request headers:{}", headers);
+        response.addHeader(HEADER_X_REQUEST_ID, xRequestId);
+        filterChain.doFilter(request, response);
+        MDC.remove(MDC_REQUEST_ID);
+        log.debug("response headers:{}", response.getHeaderNames());
+    }
+}
@@ -0,0 +1,16 @@
+package ru.demo.metrics;
+
+public enum Meter {
+    REQUEST_COUNTER("request_counter"),
+    REQUEST_DURATION("request_duration");
+
+    private final String meterName;
+
+    Meter(String meterName) {
+        this.meterName = meterName;
+    }
+
+    public String getMeterName() {
+        return meterName;
+    }
+}
@@ -0,0 +1,11 @@
+package ru.demo.metrics;
+
+import java.util.function.Supplier;
+
+public interface MetricsManager {
+    void putValue(Meter meterName, long value);
+
+    void incrementValue(Meter meterName);
+
+    void registerGauge(Meter gaugeName, Supplier<Number> gaugeGetter);
+}
@@ -0,0 +1,52 @@
+package ru.demo.metrics;
+
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.Gauge;
+import io.micrometer.core.instrument.MeterRegistry;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicLong;
+import java.util.function.Supplier;
+
+public class MicrometerMetricsManager implements MetricsManager {
+    private final MeterRegistry meterRegistry;
+    private final Map<String, AtomicLong> gauges = new ConcurrentHashMap<>();
+    private final Map<String, Counter> counters = new ConcurrentHashMap<>();
+
+    public MicrometerMetricsManager(MeterRegistry meterRegistry) {
+        this.meterRegistry = meterRegistry;
+    }
+
+    @Override
+    public void putValue(Meter meterName, long value) {
+        var gaugeName = makeMeterName(meterName);
+        var gauge = gauges.computeIfAbsent(gaugeName, key -> {
+            var newGauge = new AtomicLong();
+            registerGauge(meterName, newGauge::get);
+            return newGauge;
+        });
+        gauge.set(value);
+    }
+
+    @Override
+    public void registerGauge(Meter gaugeName, Supplier<Number> gaugeGetter) {
+        var builder = Gauge.builder(gaugeName.getMeterName(), gaugeGetter);
+        builder.register(meterRegistry);
+    }
+
+    @Override
+    public void incrementValue(Meter meterName) {
+        var counterName = makeMeterName(meterName);
+        var counter = counters.computeIfAbsent(counterName, key -> makeCounter(meterName));
+        counter.increment();
+    }
+
+    private Counter makeCounter(Meter meterName) {
+        var builder = Counter.builder(meterName.getMeterName());
+        return builder.register(meterRegistry);
+    }
+
+    private String makeMeterName(Meter meterName) {
+        return String.format("%s--", meterName.getMeterName());
+    }
+}
@@ -0,0 +1,3 @@
+package ru.demo.model;
+
+public record ClientData(String data) {}
@@ -0,0 +1,3 @@
+package ru.demo.model;
+
+public record RequestForData(String name, String requestId) {}
@@ -0,0 +1,18 @@
+spring:
+  application:
+    name: service-client
+  cloud:
+    config:
+      fail-fast: true
+      retry:
+        initial-interval: 5000
+        max-attempts: 10
+        max-interval: 5000
+        multiplier: 1.2
+  config:
+    import: optional:configserver:http://localhost:8888
+  codec:
+    max-in-memory-size: 10MB
+
+
+
@@ -0,0 +1,26 @@
+<configuration scan="true" scanPeriod="10 seconds">
+    <jmxConfigurator />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - [%X{requestId}] %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="kafka" class="ru.appender.kafka.LogAppender">
+        <bootstrapServers>localhost:9092</bootstrapServers>
+        <topicName>applLogs</topicName>
+        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
+            <fieldNames>
+                <version>[ignore]</version>
+            </fieldNames>
+            <customFields>{"appname":"service-client"}</customFields>
+            <includeMdcKeyName>requestId</includeMdcKeyName>
+        </encoder>
+    </appender>
+
+    <root level="info">
+        <appender-ref ref="STDOUT" />
+        <appender-ref ref="kafka" />
+    </root>
+</configuration>
@@ -0,0 +1,39 @@
+plugins {
+    id("com.google.cloud.tools.jib")
+}
+
+dependencies {
+    implementation(project(":kafka-log-appender"))
+    implementation("net.logstash.logback:logstash-logback-encoder")
+
+    implementation ("org.springframework.boot:spring-boot-starter-web")
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
+    implementation("io.micrometer:micrometer-registry-prometheus")
+
+    implementation("org.springframework.cloud:spring-cloud-starter-config")
+    implementation("org.springframework.cloud:spring-cloud-starter-netflix-eureka-client")
+
+    implementation("io.micrometer:micrometer-tracing-bridge-otel") // bridges the Micrometer Observation API to OpenTelemetry.
+    implementation("io.opentelemetry:opentelemetry-exporter-zipkin") // reports traces to Zipkin.
+}
+
+jib {
+    container {
+        creationTime.set("USE_CURRENT_TIMESTAMP")
+    }
+    from {
+        image = "bellsoft/liberica-openjdk-alpine-musl:21.0.1"
+    }
+
+    to {
+        image = "localrun/service-order"
+        tags = setOf(project.version.toString())
+    }
+}
+
+tasks {
+    build {
+        dependsOn(spotlessApply)
+        dependsOn(jibBuildTar)
+    }
+}
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+../gradlew :service-order:build
+
+docker load --input build/jib-image.tar
+
+docker stop service-order-1
+docker stop service-order-2
+
+docker run --rm -d --name service-order-1 \
+--memory=256m \
+--cpus 1 \
+--network="host" \
+-e JAVA_TOOL_OPTIONS="-XX:InitialRAMPercentage=80 -XX:MaxRAMPercentage=80" \
+-e SPRING_APPLICATION_INSTANCE_ID="i1" \
+-e SERVER_PORT=8091 \
+localrun/service-order:latest
+
+docker run --rm -d --name service-order-2 \
+--memory=256m \
+--cpus 1 \
+--network="host" \
+-e JAVA_TOOL_OPTIONS="-XX:InitialRAMPercentage=80 -XX:MaxRAMPercentage=80" \
+-e SPRING_APPLICATION_INSTANCE_ID="i2" \
+-e SERVER_PORT=8092 \
+localrun/service-order:latest
+
@@ -0,0 +1,15 @@
+package ru.demo;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import ru.demo.controller.InstanceId;
+
+@Configuration
+public class Config {
+
+    @Bean
+    InstanceId instanceId(@Value("${spring.application.instance_id}") String id) {
+        return new InstanceId(id);
+    }
+}
@@ -0,0 +1,11 @@
+package ru.demo;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+
+@SpringBootApplication
+public class ServiceOrder {
+    public static void main(String[] args) {
+        new SpringApplicationBuilder().sources(ServiceOrder.class).run(args);
+    }
+}
@@ -0,0 +1,3 @@
+package ru.demo.controller;
+
+public record InstanceId(String name) {}
@@ -0,0 +1,28 @@
+package ru.demo.controller;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class OrderController {
+    private static final Logger logger = LoggerFactory.getLogger(OrderController.class);
+    private final InstanceId instanceId;
+
+    public OrderController(InstanceId instanceId) {
+        this.instanceId = instanceId;
+    }
+
+    // curl -v http://localhost:8082/info?id="idClient"
+
+    // curl -v http://localhost:8091/info?id="idClient"
+    // curl -v http://localhost:8092/info?id="idClient"
+
+    @GetMapping(value = "/info")
+    public String info(@RequestParam(name = "id") String id) {
+        logger.info("instanceId:{}, request. id:{}", instanceId.name(), id);
+        return String.format("%s, Order id:%s", instanceId.name(), id);
+    }
+}
@@ -0,0 +1,18 @@
+spring:
+  application:
+    name: service-order
+    instance_id: i0
+  cloud:
+    config:
+      fail-fast: true
+      retry:
+        initial-interval: 5000
+        max-attempts: 10
+        max-interval: 5000
+        multiplier: 1.2
+  config:
+    import: optional:configserver:http://localhost:8888
+  codec:
+    max-in-memory-size: 10MB
+
+
@@ -0,0 +1,26 @@
+<configuration scan="true" scanPeriod="10 seconds">
+    <jmxConfigurator />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - [%X{requestId}] %msg%n</pattern>
+        </encoder>
+    </appender>
+
+    <appender name="kafka" class="ru.appender.kafka.LogAppender">
+        <bootstrapServers>localhost:9092</bootstrapServers>
+        <topicName>applLogs</topicName>
+        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
+            <fieldNames>
+                <version>[ignore]</version>
+            </fieldNames>
+            <customFields>{"appname":"service-order"}</customFields>
+            <includeMdcKeyName>requestId</includeMdcKeyName>
+        </encoder>
+    </appender>
+
+    <root level="info">
+        <appender-ref ref="STDOUT" />
+        <appender-ref ref="kafka" />
+    </root>
+</configuration>
@@ -0,0 +1,27 @@
+pluginManagement {
+    val jgitver: String by settings
+    val dependencyManagement: String by settings
+    val springframeworkBoot: String by settings
+    val sonarlint: String by settings
+    val spotless: String by settings
+    val jib: String by settings
+
+    plugins {
+        id("fr.brouillard.oss.gradle.jgitver") version jgitver
+        id("io.spring.dependency-management") version dependencyManagement
+        id("org.springframework.boot") version springframeworkBoot
+        id("name.remal.sonarlint") version sonarlint
+        id("com.diffplug.spotless") version spotless
+        id("com.google.cloud.tools.jib") version jib
+    }
+}
+rootProject.name = "spring-cloud"
+
+include("api-gateway")
+include("config-server")
+include("eureka-server")
+include("service-client")
+include("service-client-info")
+include("service-order")
+
+include("kafka-log-appender")