Smayorov back helloworld

.gitignore

@@ -1 +1,2 @@
 .idea/
+back/target/

README.md

@@ -0,0 +1,10 @@
+## Run dev env
+1. Install Docker and docker-compose
+2. run this command (from project root):
+```console
+docker-compose up -d
+```
+3. To clear the env run:
+```console
+docker-compose down
+```

back/README.md

@@ -1,4 +1,4 @@
-## Run development environment
+# Run development environment
 1. Install Docker and docker-compose
 2. Run the containers:
 ```
@@ -8,3 +8,35 @@ docker-compose up -d
 ```
 docker-compose exec postgres psql -U hh -d hh -c 'SELECT * FROM students'
 ```
+
+# HelloWorld nab
+## Сборка docker образа
+
+Выкачиваем готовый образ с java 11 и последней версией maven с docker hub:
+```
+docker pull maven:3.6.3-jdk-11
+```
+
+## Создание volume для maven repo
+
+```
+docker volume create --name maven-repo
+```
+
+## Работа с docker
+
+### Linux:
+
+Сборка и запуск приложения:
+```
+docker run --rm -v maven-repo:/root/.m2 -v $PWD:/mnt/app:Z -w /mnt/app -p 8080:8080 -it maven:3.6.3-jdk-11 mvn install exec:java
+```
+
+Только запуск приложения:
+```
+docker run --rm -v maven-repo:/root/.m2 -v $PWD:/mnt/app:Z -w /mnt/app -p 8080:8080 -it maven:3.6.3-jdk-11 mvn exec:java
+```
+
+### Windows:
+
+Заменить в вызовых команд `$PWD` на `%cd%`

back/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         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>
+    <groupId>ru.gowork</groupId>
+    <artifactId>back</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <packaging>jar</packaging>
+
+    <properties>
+        <nab.version>4.22.20</nab.version>
+    </properties>
+
+    <repositories>
+        <repository>
+            <id>hh-public</id>
+            <name>hh public releases repository</name>
+            <url>http://m2.hh.ru/content/repositories/public-releases</url>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+            <snapshots>
+                <enabled>false</enabled>
+            </snapshots>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>ru.hh.nab</groupId>
+            <artifactId>nab-starter</artifactId>
+            <version>${nab.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>ru.hh.nab</groupId>
+            <artifactId>nab-hibernate</artifactId>
+            <version>${nab.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>ru.hh.nab</groupId>
+            <artifactId>nab-testbase</artifactId>
+            <version>${nab.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <release>11</release>
+                    <showDeprecation>true</showDeprecation>
+                </configuration>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.2</version>
+                <configuration>
+                    <finalName>${project.artifactId}</finalName>
+                    <transformers>
+                        <transformer
+                                implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                        <transformer
+                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                            <manifestEntries>
+                                <Main-Class>ru.gowork.App</Main-Class>
+                            </manifestEntries>
+                        </transformer>
+                    </transformers>
+                    <filters>
+                        <filter>
+                            <artifact>*:*</artifact>
+                            <excludes>
+                                <exclude>META-INF/*.SF</exclude>
+                                <exclude>META-INF/*.DSA</exclude>
+                                <exclude>META-INF/*.RSA</exclude>
+                            </excludes>
+                        </filter>
+                    </filters>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <systemPropertyVariables>
+                        <settingsDir>${basedir}/src/etc</settingsDir>
+                    </systemPropertyVariables>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>exec-maven-plugin</artifactId>
+                <version>1.6.0</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>java</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <systemProperties>
+                        <systemProperty>
+                            <key>settingsDir</key>
+                            <value>src/etc</value>
+                        </systemProperty>
+                    </systemProperties>
+                    <mainClass>ru.gowork.App</mainClass>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

back/src/etc/service.properties

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+serviceName=backend
+datacenter=testDC
+
+jetty.port=8080
+
+log.immediate.flush=true
+log.toConsole=true
+log.timings=false
+
+consul.http.host=127.0.0.1
+consul.http.port=13100
+consul.check.host=127.0.0.1
+consul.check.timeout=5s
+consul.check.interval=5s
+consul.tags=nab,nab-example
+consul.enabled=false

back/src/main/java/ru/gowork/App.java

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+package ru.gowork;
+
+import ru.gowork.resource.ExampleResource;
+import ru.hh.nab.common.properties.PropertiesUtils;
+import ru.hh.nab.starter.NabApplication;
+import ru.gowork.config.ProdConfig;
+
+public class App {
+
+  public static void main(String[] args) {
+    // System.setProperty(PropertiesUtils.SETINGS_DIR_PROPERTY, "back/src/etc");
+    NabApplication
+            .builder()
+            .configureJersey().addAllowedPackages("ru.gowork")
+            .bindToRoot()
+            .build()
+            .run(ProdConfig.class);
+  }
+}

back/src/main/java/ru/gowork/config/LogbackConfigurator.java

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+package ru.gowork.config;
+
+import io.sentry.logback.SentryAppender;
+import org.slf4j.event.Level;
+import ru.hh.nab.logging.HhMultiAppender;
+import ru.hh.nab.starter.NabLogbackBaseConfigurator;
+
+public class LogbackConfigurator extends NabLogbackBaseConfigurator {
+  @Override
+  public void configure(LoggingContextWrapper context, HhMultiAppender service, HhMultiAppender libraries, SentryAppender sentry) {
+    getRootLogger(context).setLevel(Level.INFO);
+  }
+}

back/src/main/java/ru/gowork/config/ProdConfig.java

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+package ru.gowork.config;
+
+import ru.gowork.resource.ExampleResource;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+import ru.hh.nab.starter.NabProdConfig;
+
+@Configuration
+@Import({
+  ExampleResource.class,
+  NabProdConfig.class
+})
+public class ProdConfig {
+
+}

back/src/main/java/ru/gowork/entity/HelloWorldEntity.java

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+package ru.gowork.entity;
+
+public class HelloWorldEntity {
+  private final String HELLO_STRING = "Hello, ";
+  private final String EXCLAMATION_MARK = "!";
+  private String name;
+
+  public HelloWorldEntity(String name) {
+    this.name = name;
+  }
+
+  public synchronized String getString() {
+    return HELLO_STRING + name + EXCLAMATION_MARK;
+  }
+
+  public synchronized void setName(String name) {
+    if (name != null) {
+      this.name = name;
+    }
+  }
+
+  public synchronized void deleteName() {
+    this.name = "";
+  }
+
+}

back/src/main/java/ru/gowork/resource/ExampleResource.java

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+package ru.gowork.resource;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import ru.gowork.entity.HelloWorldEntity;
+
+import javax.inject.Singleton;
+import javax.ws.rs.*;
+import javax.ws.rs.core.Response;
+
+@Singleton
+@Path("/")
+public class ExampleResource {
+
+  private static final Logger logger = LoggerFactory.getLogger(ExampleResource.class);
+  private HelloWorldEntity helloWorldEntity = new HelloWorldEntity("world");
+
+  @GET
+  public Response get() {
+    logger.info("Print " + helloWorldEntity.getString());
+    return Response.ok(helloWorldEntity.getString()).build();
+  }
+
+  @POST
+  public Response post(@QueryParam(value = "name") String name) {
+    logger.info("Set input name: " + name);
+    helloWorldEntity.setName(name);
+    return Response.ok().build();
+  }
+
+  @DELETE
+  public Response delete() {
+    logger.info("Delete name");
+    helloWorldEntity.deleteName();
+    return Response.ok().build();
+  }
+}

back/src/main/resources/META-INF/services/ch.qos.logback.classic.spi.Configurator

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+ru.gowork.config.LogbackConfigurator

docker-compose.yaml

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+version: '3.4'
+
+services:
+  postgres:
+    image: postgres:13.2-alpine
+    restart: always
+    volumes:
+      - ./back/migrations/:/docker-entrypoint-initdb.d/
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_PASSWORD: hh
+      POSTGRES_DB: hh
+      POSTGRES_USER: hh
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U hh"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  back:
+    image: maven:3.6.3-jdk-11
+    restart: always
+    working_dir: /mnt/app
+    command: mvn install exec:java
+    volumes:
+      - gowork-back-maven-repo:/root/.m2
+      - ./back:/mnt/app:Z
+    ports:
+      - "8080:8080"
+    links:
+      - postgres
+    depends_on:
+      - postgres
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080/status"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 180s  # first start may be long due to downloading dependencies
+  front:
+    build: ./front
+    ports:
+      - "3000:80"
+    links:
+      - back
+    depends_on:
+      - back
+volumes:
+  gowork-back-maven-repo: