In this post we are going to see the [[2022-07-21-how-to-run-jenkins-jobs-with-docker docker]] exec and how we [[2022-07-27-jenkins-ci-pipeline-scripts-not-permitted-to-use-method-groovy-lang-groovyobject use]] it. Then we are going to see is [[2020-04-03-how-to-setup-your-local-nodejs-development-environment-using-docker docker]] attach and how we use it. So what is [[2022-09-21-how-do-you-ping-a-docker-container-from-the-outside docker]] attach and how is it different from [[2022-01-15-how-do-i-connect-mysql-workbench-to-mysql-inside-docker docker]] exec.