[Maven] Maven Resources Plugin

Apache Maven Resource Plugin (https://maven.apache.org/plugins/maven-resources-plugin/)

The Resources Plugin handles the copying of project resources to the output directory.

<plugin>
  <artifactId>maven-resources-plugin</artifactId>
  <executions>
    <execution>
      <id>copy-resources</id>
      <!-- here the phase you need -->
      <phase>validate</phase>
      <goals>
        <goal>copy-resources</goal>
      </goals>
      <configuration>
        <outputDirectory>${basedir}/target/dockerfile</outputDirectory>
        <resources>
          <resource>
            <directory>src/main/docker</directory>
            <filtering>true</filtering>
          </resource>
        </resources>
      </configuration>
    </execution>
  </executions>
</plugin>

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