![]() Now, run the following command to create an image tagged my-app:1.0.0: docker build. Then, copy and paste the following content into the Dockerfile: FROM alpine Note that you can choose any name you prefer for the directory, but the file must be named Dockerfile. Open your code editor, create a new directory, and inside that directory, create a file named Dockerfile. Tag a Docker image during the build process We can tag a Docker image during its build process or afterward. If you don’t have Docker Desktop, you can download it from the link: Get Docker. ![]() You also need to have Docker Desktop installed and running on your system. To follow along with the examples in this post, you need a code editor. Now that you understand the importance of tagging Docker images, let’s dive into how to actually do it. This can significantly reduce the time and effort needed to diagnose and resolve problems. Easier troubleshooting: A well-defined tagging strategy can help quickly identify the correct version of an application when issues arise. ![]() For example, a continuous integration and continuous deployment (CI/CD) pipeline can automatically build, test, and deploy new versions of the application based on the tags assigned to the Docker images.
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