add sparkjava application sample

Signed-off-by: Anca Iordache <anca.iordache@docker.com>
master
Anca Iordache 5 years ago
parent 3a23aa59d2
commit 49463cdfdf

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version: "3.7"
services:
sparkjava:
build: sparkjava
ports:
- 80:8080

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FROM maven:3.5-jdk-8-alpine AS build
COPY pom.xml .
RUN mvn --batch-mode dependency:resolve
COPY src/ src
RUN mvn --batch-mode clean compile assembly:single
FROM openjdk:8-jre-alpine3.7
EXPOSE 8080
COPY --from=build target/app.jar /app.jar
CMD java -jar /app.jar

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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>com.company</groupId>
<artifactId>project</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
<manifest>
<mainClass>App</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<finalName>app</finalName>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.sparkjava</groupId>
<artifactId>spark-core</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
</project>

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import static spark.Spark.*;
public class App {
public static void main(String[] args) {
port(8080);
get("/", (req, res) -> "Hello world");
}
}
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