pom-tomcat.xml

<project>
  <modelVersion>4.0.0</modelVersion>

  <groupId>example</groupId>
  <artifactId>helloworld</artifactId>
  <version>1</version>
  <packaging>war</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <jib-maven-plugin.version>3.0.0</jib-maven-plugin.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
      <scope>provided</scope>
    </dependency>
    <!-- random bad dependencies -->
    <!--
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    -->
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>

      <plugin>
        <groupId>com.google.cloud.tools</groupId>
        <artifactId>jib-maven-plugin</artifactId>
        <version>${jib-maven-plugin.version}</version>
        <configuration>
          <from>
            <image>tomcat:8.5-jre8-alpine</image>
          </from>
          <container>
            <appRoot>/usr/local/tomcat/webapps/ROOT</appRoot>
          </container>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>