codecentric · erikpetzold · Jan 19, 2024 · Jan 19, 2024 · Jan 19, 2024 · Jan 19, 2024
diff --git a/eureka/README.md b/eureka/README.md
@@ -0,0 +1,26 @@
+## Spring Boot Admin - Eureka Example
+
+Allows to run Spring Boot Admin and two sample apps (hello world, health simulator) with service discovery via eureka. 
+
+This Readme will guide you through all setup steps for the infrastructure.
+
+## Prerequisites 
+
+- Java
+- Maven
+- Docker and Docker Compose
+
+## Run Everything
+You can run the whole build and start all apps in docker containers with the following script or follow the step-by-step guide below.
+```bash
+chmod u+x buildAndRunAll.sh
+./buildAndRunAll.sh
+```
+Eureka UI: http://localhost:8761/
+
+Admin UI: http://localhost:8080/
+
+## Stop Everything
+```bash
+docker-compose down -v
+```
diff --git a/eureka/apps/eureka/.gitignore b/eureka/apps/eureka/.gitignore
@@ -0,0 +1,5 @@
+target
+.idea
+*.iml
+*.log
+*.gz
diff --git a/eureka/apps/eureka/Dockerfile b/eureka/apps/eureka/Dockerfile
@@ -0,0 +1,8 @@
+# https://hub.docker.com/_/eclipse-temurin/
+FROM eclipse-temurin:17
+
+VOLUME /tmp
+
+COPY target/app.jar /opt/app/app.jar
+
+CMD ["bash", "-c", "java $JAVA_OPTS -jar /opt/app/app.jar"]
diff --git a/eureka/apps/eureka/build.sh b/eureka/apps/eureka/build.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Build App
+mvn package
+# Build Docker Image
+docker build --tag eureka-server .
diff --git a/eureka/apps/eureka/pom.xml b/eureka/apps/eureka/pom.xml
@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xmlns="http://maven.apache.org/POM/4.0.0"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-parent</artifactId>
+ <version>3.2.1</version>
+ </parent>
+
+ <groupId>de.codecentric</groupId>
+ <artifactId>eureka-server</artifactId>
+ <packaging>jar</packaging>
+ <name>${project.artifactId}</name>
+ <version>1.0.0-SNAPSHOT</version>
+ <description>Eureka Server</description>
+
+ <properties>
+ <java.version>17</java.version>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <spring-cloud.version>2023.0.0</spring-cloud.version>
+ </properties>
+
+ <dependencyManagement>
+ <dependencies>
+ <dependency>
+ <groupId>org.springframework.cloud</groupId>
+ <artifactId>spring-cloud-dependencies</artifactId>
+ <version>${spring-cloud.version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ </dependencies>
+ </dependencyManagement>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.springframework.cloud</groupId>
+ <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <finalName>app</finalName>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>repackage</id>
+ <goals>
+ <goal>repackage</goal>
+ <!-- Build-Info for Info-Actuator -->
+ <goal>build-info</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <!-- GIT-Info for Info-Actuator -->
+ <plugin>
+ <groupId>io.github.git-commit-id</groupId>
+ <artifactId>git-commit-id-maven-plugin</artifactId>
+ <configuration>
+ <offline>true</offline>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
diff --git a/eureka/apps/eureka/src/main/java/de/codecentric/eureka/EurekaApplication.java b/eureka/apps/eureka/src/main/java/de/codecentric/eureka/EurekaApplication.java
@@ -0,0 +1,13 @@
+package de.codecentric.eureka;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
+
+@SpringBootApplication
+@EnableEurekaServer
+public class EurekaApplication {
+ public static void main(String[] args) {
+ SpringApplication.run(EurekaApplication.class);
+ }
+}
diff --git a/eureka/apps/eureka/src/main/resources/application.yml b/eureka/apps/eureka/src/main/resources/application.yml
@@ -0,0 +1,45 @@
+server:
+ port: 8761
+spring:
+ application: # Application-Info for the Info-Actuator
+ name: "@pom.artifactId@"
+eureka:
+ client:
+ registerWithEureka: true
+ fetchRegistry: false
+management: # Actuator Configuration
+ server:
+ port: 8081
+ endpoints:
+ web:
+ exposure:
+ include: "*"
+ endpoint: # Health-Actuator
+ health:
+ show-details: always
+ probes:
+ enabled: true
+ env: # Environment-Actuator
+ show-values: always
+ configprops: # Configuration-Actuator
+ show-values: always
+ info: # Info-Actuator
+ java:
+ enabled: true
+ os:
+ enabled: true
+ build:
+ enabled: true
+ env:
+ enabled: true
+ git:
+ enabled: true
+info: # Application-Info for the Info-Actuator
+ group: "@pom.groupId@"
+ artifact: "@pom.artifactId@"
+ description: "@pom.description@"
+ version: "@pom.version@"
+ spring-boot: "@pom.parent.version@"
+ # Tags for the Spring Boot Admin UI
+ tags:
+ spring-boot: "@pom.parent.version@"
diff --git a/eureka/apps/hello-world/.gitignore b/eureka/apps/hello-world/.gitignore
@@ -0,0 +1,5 @@
+target
+.idea
+*.iml
+*.log
+*.gz
diff --git a/eureka/apps/hello-world/Dockerfile b/eureka/apps/hello-world/Dockerfile
@@ -0,0 +1,8 @@
+# https://hub.docker.com/_/eclipse-temurin/
+FROM eclipse-temurin:17
+
+VOLUME /tmp
+
+COPY target/app.jar /opt/app/app.jar
+
+CMD ["bash", "-c", "java $JAVA_OPTS -jar /opt/app/app.jar"]
diff --git a/eureka/apps/hello-world/build.sh b/eureka/apps/hello-world/build.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Build App
+mvn package
+# Build Docker Image
+docker build --tag hello-world-eureka .
diff --git a/eureka/apps/hello-world/pom.xml b/eureka/apps/hello-world/pom.xml
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xmlns="http://maven.apache.org/POM/4.0.0"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-parent</artifactId>
+ <version>3.2.1</version>
+ </parent>
+
+ <groupId>de.codecentric</groupId>
+ <artifactId>hello-world-eureka</artifactId>
+ <packaging>jar</packaging>
+ <name>${project.artifactId}</name>
+ <version>1.0.0-SNAPSHOT</version>
+ <description>Hello World</description>
+
+ <properties>
+ <java.version>17</java.version>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <spring-cloud.version>2023.0.0</spring-cloud.version>
+ </properties>
+
+ <dependencyManagement>
+ <dependencies>
+ <dependency>
+ <groupId>org.springframework.cloud</groupId>
+ <artifactId>spring-cloud-dependencies</artifactId>
+ <version>${spring-cloud.version}</version>
+ <type>pom</type>
+ <scope>import</scope>
+ </dependency>
+ </dependencies>
+ </dependencyManagement>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-web</artifactId>
+ </dependency>
+
+ <!-- Actuator -->
+ <dependency>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-starter-actuator</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.springframework.cloud</groupId>
+ <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <finalName>app</finalName>
+ <plugins>
+ <plugin>
+ <groupId>org.springframework.boot</groupId>
+ <artifactId>spring-boot-maven-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>repackage</id>
+ <goals>
+ <goal>repackage</goal>
+ <!-- Build-Info for Info-Actuator -->
+ <goal>build-info</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <!-- GIT-Info for Info-Actuator -->
+ <plugin>
+ <groupId>io.github.git-commit-id</groupId>
+ <artifactId>git-commit-id-maven-plugin</artifactId>
+ <configuration>
+ <offline>true</offline>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
diff --git a/eureka/apps/hello-world/src/main/java/de/codecentric/helloworld/HelloWorld.java b/eureka/apps/hello-world/src/main/java/de/codecentric/helloworld/HelloWorld.java
@@ -0,0 +1,14 @@
+package de.codecentric.helloworld;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class HelloWorld {
+
+ @GetMapping("/")
+ public String hello() {
+ return "Hello World!";
+ }
+
+}
diff --git a/eureka/apps/hello-world/src/main/java/de/codecentric/helloworld/HelloWorldApplication.java b/eureka/apps/hello-world/src/main/java/de/codecentric/helloworld/HelloWorldApplication.java
@@ -0,0 +1,17 @@
+package de.codecentric.helloworld;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.metrics.buffering.BufferingApplicationStartup;
+
+@SpringBootApplication
+public class HelloWorldApplication {
+
+ public static void main(String... args) {
+ var app = new SpringApplication(HelloWorldApplication.class);
+ // Buffering for Startup-Actuator
+ app.setApplicationStartup(new BufferingApplicationStartup(2048));
+ app.run();
+ }
+
+}
diff --git a/eureka/apps/hello-world/src/main/resources/application.yml b/eureka/apps/hello-world/src/main/resources/application.yml
@@ -0,0 +1,54 @@
+server:
+ port: 8080
+spring:
+ application: # Application-Info for the Info-Actuator
+ name: "@pom.artifactId@"
+eureka:
+ instance:
+ leaseRenewalIntervalInSeconds: 10
+ health-check-url-path: /actuator/health
+ metadata-map:
+ startup: ${random.int} #needed to trigger info and endpoint update after restart
+ client:
+ registryFetchIntervalSeconds: 5
+ serviceUrl:
+ defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/
+management: # Actuator Configuration
+ server:
+ port: 8081
+ endpoints:
+ web:
+ exposure:
+ include: "*"
+ endpoint: # Health-Actuator
+ health:
+ show-details: always
+ probes:
+ enabled: true
+ env: # Environment-Actuator
+ show-values: always
+ configprops: # Configuration-Actuator
+ show-values: always
+ info: # Info-Actuator
+ java:
+ enabled: true
+ os:
+ enabled: true
+ build:
+ enabled: true
+ env:
+ enabled: true
+ git:
+ enabled: true
+info: # Application-Info for the Info-Actuator
+ group: "@pom.groupId@"
+ artifact: "@pom.artifactId@"
+ description: "@pom.description@"
+ version: "@pom.version@"
+ spring-boot: "@pom.parent.version@"
+ # Tags for the Spring Boot Admin UI
+ tags:
+ spring-boot: "@pom.parent.version@"
+logging: # Logging-File for the Logfile-Actuator
+ file:
+ name: "hello-world.log"
diff --git a/eureka/apps/spring-boot-admin/.gitignore b/eureka/apps/spring-boot-admin/.gitignore
@@ -0,0 +1,5 @@
+target
+.idea
+*.iml
+*.log
+*.gz
diff --git a/eureka/apps/spring-boot-admin/Dockerfile b/eureka/apps/spring-boot-admin/Dockerfile
@@ -0,0 +1,8 @@
+# https://hub.docker.com/_/eclipse-temurin/
+FROM eclipse-temurin:17
+
+VOLUME /tmp
+
+COPY target/app.jar /opt/app/app.jar
+
+CMD ["bash", "-c", "java $JAVA_OPTS -jar /opt/app/app.jar"]
diff --git a/eureka/apps/spring-boot-admin/build.sh b/eureka/apps/spring-boot-admin/build.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Build App
+mvn package
+# Build Docker Image
+docker build --tag spring-boot-admin-eureka .
-Original file line number
+Diff line change
@@ -0,0 +1,5 @@
+ target
+ .idea
+ *.iml
+ *.log
+ *.gz