title: flyway-maven-plugin: how to execute multiple database configurations together?
body: <p>I am integrating Flyway in to an existing legacy project, which consists of multiple databases for the same application. The project uses Maven and I want to use the maven-flyway-plugin to integrate with Flyway.</p>
  <p>My working configuration so far looks like this:</p>
  <pre><code>&lt;plugin&gt;
      &lt;groupId&gt;org.flywaydb&lt;/groupId&gt;
      &lt;artifactId&gt;flyway-maven-plugin&lt;/artifactId&gt;
      &lt;executions&gt;
          &lt;execution&gt;
              &lt;id&gt;db1&lt;/id&gt;
              &lt;goals&gt;
                  &lt;goal&gt;migrate&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
                  ...
              &lt;/configuration&gt;
          &lt;/execution&gt;
          &lt;execution&gt;
              &lt;id&gt;db2&lt;/id&gt;
              &lt;goals&gt;
                  &lt;goal&gt;migrate&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
                  ...
              &lt;/configuration&gt;
          &lt;/execution&gt;
          &lt;execution&gt;
              &lt;id&gt;db2&lt;/id&gt;
              &lt;goals&gt;
                  &lt;goal&gt;migrate&lt;/goal&gt;
              &lt;/goals&gt;
              &lt;configuration&gt;
                  ...
              &lt;/configuration&gt;
          &lt;/execution&gt;
      &lt;/executions&gt;
  &lt;/plugin&gt;
  </code></pre>
  <p>With this I can migrate each database separately like this:</p>
  <pre><code>mvn flyway:migrate@db1 flyway:migrate@db2 flyway:migrate@db3
  </code></pre>
  <p>Unfortunately this is not very user friendly. I want to be able to simply execute <code>mvn flyway:migrate</code> and execute all three migration configurations.</p>
  <p>How can I achieve that?</p>