In the realm of Docker, a volume refers to a durable storage destination that exists independently of the container. Volumes prove invaluable for preserving data that should endure beyond the container's lifecycle, even if the container is halted or deleted. The volume will be created when the container is built, and it can be accessed and modified by processes running inside the container.
Utilizing Volumes in a Docker Container Offers Several Compelling Advantages:
- Data Persistence: When you have critical data that must endure beyond a container's lifecycle, volumes provide the ideal solution. Storing items like database files or application logs in a volume ensures their preservation even if the container is halted or deleted.
- Sharing Data Among Containers: Volumes facilitate seamless data sharing among multiple containers. By leveraging a volume, you allow different containers to access the same data, making it convenient for storing shared configuration files or data utilized by multiple containers.
- Streamlining Data Management: Volumes contribute to efficient data management by decoupling data from the container itself. For instance, you can employ a volume to store data generated by the container and then easily access that data by mounting the volume on a host system, simplifying data handling and manipulation.
In Jenkins pipelines, Docker volumes offer a convenient solution for building Angular projects without requiring the installation of the Angular library on the Jenkins node machine.