This post solves the common problem of running Dockerized projects inside Jenkins when Jenkins itself is running as a Docker container. The default Jenkins image leads to permission errors when building Docker containers in pipelines. The author provides a straightforward solution by creating a custom Jenkins image with the Docker CLI installed and configuring the Jenkins user to access Docker commands. A sample Dockerfile and usage instructions are included, making it easy to build and run a Jenkins container capable of running Docker builds inside. This helps developers integrate Docker builds within Jenkins pipelines smoothly.