Project Jenkins File Content:

pipeline {
    agent any
    stages {
        stage('Build Application') {
            steps {
                sh 'mvn -f pom.xml clean package'
            }
            post {
                success {
                    echo "Now Archiving the Artifacts...."
                    archiveArtifacts artifacts: '**/*.war'
                }
            }
        }

        Stage('Create Tomcat Docker Image'){
            steps {
                sh "docker build . -t tomcatsamplewebapp:${env.BUILD_ID}"
            }
        }

    }
}

Project's Dockerfile Content :

FROM tomcat:8.0

ADD **/*.war /usr/local/tomcat/webapps

EXPOSE 8080

CMD ["catalina.sh", "run"]