File system

As explained in Bootstrapping Microservices, Second Edition: With Docker, Kubernetes, GitHub Actions, and Terraform

File storage is a persistent storage mechanism that organizes data as files.

Provides persistent storage for files and assets, such as videos served by an application. In a microservices system, file storage can remain behind a dedicated service instead of coupling application logic directly to a provider. section 4.0 section 4.4

A practical file-storage arrangement separates responsibilities:

• Use external cloud storage such as Azure Storage, AWS S3, or Google Cloud Storage for application files. section 4.4
• Place a storage microservice between application services and the external provider. section 4.4
• Use Docker Compose to run the storage service with the rest of a multi-container application during development. section 4.1

Replacing cloud storage locally

A mock-storage service can store videos in a local filesystem instead of Azure Storage. A GET /video request reads a file by identifier, while POST /upload writes the request stream to a path under the service's storage directory. Mounting that directory into the container preserves files during development and avoids external cloud dependencies. section 10.7.2

Figure 4.5 We add a second microservice and external cloud storage to our application.

Shows the storage microservice as an intermediary between the video-streaming service and external cloud storage. section 4.4

How Bootstrapping Microservices, Second Edition: With Docker, Kubernetes, GitHub Actions, and Terraform covers it

How deep it goes

Explains provider-backed storage, service abstraction, local replacement, mounted directories, and stream-based file operations.

Examples

Uses Azure Storage, a video-storage service, a mock-storage service, local video files, and Docker Compose volume mounts.

What it assumes

Assumes familiarity with microservices and Docker, then introduces multi-container development and external file-storage integration.

What you can do after

Operate/configure storage through a dedicated service and substitute local filesystem storage for cloud storage during development.

How it connects

Connects file storage with microservices, cloud storage, Docker Compose, separation of concerns, and databases.

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Also explained in

• 

  liveBookmanning.com
  Amazon Web Services in Action, Third Edition: An in-depth guide to AWSA filesystem is a data-management structure that organizes blocks into files and directories for operating-system access.
• 

  liveBookmanning.com
  Kubernetes in Action, Second EditionA filesystem is a structure and set of operations for organizing, storing, and accessing files, including the isolated filesystem presented to a container.
• 

  liveBookmanning.com
  100 Java Mistakes and How to Avoid ThemA filesystem is a system that organizes and provides access to files and directories on storage or through a mounted hierarchy.

Compare how 4 books explain file system →

Related concepts

• copy instructionused by · The Dockerfile COPY instruction copies files or directories from a build context or another build stage into an image’s filesystem.
• bind mountused by · A bind mount makes an existing file or directory accessible at another filesystem location, commonly exposing host contents within a container.
• monitoringused by · Monitoring is the ongoing observation and measurement of a system’s behavior, state, or operational signals to assess its condition and detect changes or problems.
• container securityaddressed by · Container security is the practice of protecting container images, runtimes, workloads, hosts, configurations, and supporting infrastructure from vulnerabilities, compromise, and unauthorized activity.
• WASIused by · WASI, the WebAssembly System Interface, is a standardized collection of interfaces that enables WebAssembly programs to access operating-system-like resources portably.

This explainer was generated by Manning's knowledge graph from the text of Bootstrapping Microservices, Second Edition: With Docker, Kubernetes, GitHub Actions, and Terraform. The section links point to the parts of the book it draws on.