These examples run the server program (e.g Uvicorn), starting **a single process**, listening on all the IPs (`0.0.0.0`) on a predefined port (e.g. `80`).

This is the basic idea. But you will probably want to take care of some additional things, like:

* Security - HTTPS
* Running on startup
* Restarts
* Replication (the number of processes running)
* Memory
* Previous steps before starting

import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;
import org.lastaflute.web.ruts.process.ActionRuntime;
import org.lastaflute.web.util.LaRequestUtil;

import jakarta.annotation.Resource;

/**
 * Admin action for Scheduler management.
 *
 */

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.exception;

/**
 * Exception thrown when command execution fails.
 * This exception indicates that an external command or process execution encountered an error.
 */
public class CommandExecutionException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /**
     * Constructor with error message.

 *
 * <p>The conversion is performed by iterating through the conversion map and applying
 * each replacement rule sequentially. The order of the rules in the map is preserved
 * during the conversion process.</p>
 *
 * <p>Example usage:</p>
 *
 * <pre>{@code
 * UrlConvertHelper helper = new UrlConvertHelper();
 * helper.add("old-domain.com", "new-domain.com");

# under the License.
#

#
# Maven user properties
#
# The properties defined in this file will be made available through
# user properties at the very beginning of Maven's boot process.
#
maven.property = yes it is

maven.installation.conf = ${maven.home}/conf
maven.user.conf         = ${user.home}/.m2
maven.project.conf      = ${session.rootDirectory}/.mvn

        StringBuilder currentArg = null;

        for (String arg : args) {
            boolean addedToBuffer = false;

            if (arg.startsWith("\"")) {
                // if we're in the process of building up another arg, push it and start over.
                // this is for the case: "-Dfoo=bar "-Dfoo2=bar two" (note the first unterminated quote)
                if (currentArg != null) {

        final LabelType labelType = getLabelType(body).map(entity -> {
            try {
                labelTypeService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;
        }).orElseGet(() -> {

    // Process Type Constants
    // ============================================================

    /** Process type for replace operations. */
    public static final String PROCESS_TYPE_REPLACE = "R";

    /** Process type for crawling operations. */
    public static final String PROCESS_TYPE_CRAWLING = "C";

    /** Process type for displaying operations. */

         *
         * @param query the query string to process
         * @param chain the next filter chain to invoke
         * @return the processed Query object
         */
        Query parse(final String query, final FilterChain chain);
    }

    /**
     * Interface for the filter chain that processes queries.
     * Each filter in the chain can invoke the next filter or terminate the chain.

     * When true, the builder will process parent POMs and child modules as needed.
     *
     * @return true if the build should be recursive, false otherwise
     */
    boolean isRecursive();

    /**
     * Determines whether plugins should be processed during project building.
     * When true, the builder will process plugin information which may include