Error: Invalid or corrupt jarfile /app.jar

Question

我正在尝试将 spring 引导创建的微服务推送到 ibm 云托管的 K8 集群，但在启动时不断出现以下错误：

Error: Invalid or corrupt jarfile /app.jar

我的docker文件：

FROM openjdk:8-jdk-alpine
VOLUME /tmp
ARG JAR_FILE
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

我的pom.xml:

<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>projects</groupId>
  <artifactId>mydb2jdbcproject</artifactId>
  <version>1</version>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <java.version>1.8</java.version>
    <spring-cloud.version>Dalston.SR4</spring-cloud.version>
    <docker.image.prefix>springio</docker.image.prefix>
    <app.name>mydb2jdbcproject</app.name>
  </properties>

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.15.RELEASE</version>
  </parent>

  <dependencies>
  <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
    <dependency>
      <groupId>com.ibm.db2.jcc</groupId>
      <artifactId>db2jcc4</artifactId>
      <version>4.26.14</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-actuator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-hystrix</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.json</groupId>
      <artifactId>javax.json-api</artifactId>
      <version>1.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>com.jayway.jsonpath</groupId>
      <artifactId>json-path</artifactId>
      <version>2.4.0</version>
    </dependency>
    <dependency>
      <groupId>com.ibm.cloud</groupId>
      <artifactId>ibm-cloud-spring-boot-service-bind</artifactId>
      <version>1.1.1</version>
    </dependency>
    <dependency>
      <groupId>org.eclipse.microprofile.config</groupId>
      <artifactId>microprofile-config-api</artifactId>
      <version>1.1</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

  <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>

  <repositories>
    <repository>
      <id>repo</id>
      <url>file://${project.basedir}/lib</url>
    </repository>
  </repositories>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>com.spotify</groupId>
        <artifactId>dockerfile-maven-plugin</artifactId>
        <version>1.4.9</version>
        <configuration>
          <repository>${docker.image.prefix}/${project.artifactId}</repository>
          <buildArgs>
            <JAR_FILE>target/${project.build.finalName}.jar</JAR_FILE>
          </buildArgs>
        </configuration>
      </plugin>
        <plugin>
  <groupId>io.fabric8</groupId>
  <artifactId>docker-maven-plugin</artifactId>
  <extensions>true</extensions>
  <configuration>
    <images>
      <image>
        <name>us.icr.io/rbs1/rbstest</name>
        <build>
          <from>adoptopenjdk/openjdk8-openj9</from>
          <entryPoint>
            <exec>
              <arg>java</arg>
              <arg>-jar</arg>
              <arg>/${project.build.finalName}.jar</arg>
            </exec>
          </entryPoint>
          <assembly>
            <targetDir>/</targetDir>
            <mode>dir</mode>
            <descriptorRef>artifact</descriptorRef>
          </assembly>
        </build>
      </image>
    </images>
  </configuration>
</plugin>
    </plugins>
  </build>

</project>'

我的事件日志：

Events:
  Type     Reason     Age                    From                    Message
  ----     ------     ----                   ----                    -------
  Normal   Scheduled  9m10s                  default-scheduler       Successfully assigned default/basic-deployment-768559cfc6-6fd2j to 10.144.195.59
  Normal   Created    8m15s (x4 over 9m)     kubelet, 10.144.195.59  Created container
  Normal   Started    8m15s (x4 over 9m)     kubelet, 10.144.195.59  Started container
  Normal   Pulling    7m35s (x5 over 9m8s)   kubelet, 10.144.195.59  pulling image "------/---------"
  Normal   Pulled     7m34s (x5 over 9m)     kubelet, 10.144.195.59  Successfully pulled image "--------/---------"
  Warning  BackOff    4m6s (x24 over 8m57s)  kubelet, 10.144.195.59  Back-off restarting failed container

图像保存在 docker 存储库中，然后拉入集群。我已完全登录 docker 和 ibmcloud。容器每次重启6次总是不成功。我运行

mvn package

每次构建 docker 图像之前，确保有一个可用的 jar，并且该 jar 保存在名为 mydb2jdbcproject-1 的目标文件夹中。

Answer 1

在 Dockerfile 中替换

COPY ${JAR_FILE} app.jar

和

COPY ${JAR_FILE} /app.jar

Answer 2

令人尴尬的是，我没有意识到我需要用 ${JAR_FILE} 指向正确的 jar 文件。在确保它针对我的应用程序 jar 后，一切正常。谢谢！

留在这里以备不时之需。

Error: Invalid or corrupt jarfile /app.jar

Error: Invalid or corrupt jarfile /app.jar

jar

docker

kubernetes

ibm-cloud