<ul><li>A Dockerfile is a script containing a series of instructions on how to build a Docker image.</li><li>In this article, we will cover the essential syntax and instructions used in Dockerfiles to create custom Docker images for your applications.</li><li>The most common Dockerfile instructions are:FROM, RUN, COPY, ADD, CMD, ENTRYPOINT, EXPOSE, ENV, WORKDIR, VOLUME, USER, ARG, LABEL, HEALTHCHECK, STOPSIGNAL</li><li>The FROM instruction defines the base image for your Docker image.</li><li>The RUN instruction allows you to execute commands inside the container at build time.</li><li>The COPY instruction copies files or directories from the host system into the container's file system.</li><li>The CMD instruction defines the default command that will be executed when the container starts. </li><li>The ENTRYPOINT instruction allows you to specify the executable that will always run when the container starts.</li><li>The EXPOSE instruction informs Docker that the container listens on the specified network ports at runtime.</li><li>Dockerfiles provide a powerful way to automate the creation of Docker images.</li></ul>

Mastering Dockerfile Syntax: A Complete Guide for Creating Custom Docker Images

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