In those cases, you can use the **official Docker image** that includes **Gunicorn** as a process manager running multiple **Uvicorn worker processes**, and some default settings to adjust the number of workers based on the current CPU cores automatically. I'll tell you more about it below in [Official Docker Image with Gunicorn - Uvicorn](#official-docker-image-with-gunicorn-uvicorn).

!!! tip
    Don't worry if some of these items about **containers**, Docker, or Kubernetes don't make a lot of sense yet.

    I'll tell you more about container images, Docker, Kubernetes, etc. in a future chapter: [FastAPI in Containers - Docker](docker.md){.internal-link target=_blank}.

## Previous Steps Before Starting

* ✏ Fix minor typos in `docs/en/docs/async.md`. PR [#5125](https://github.com/tiangolo/fastapi/pull/5125) by [@Ksenofanex](https://github.com/Ksenofanex).
* 📝 Add external link to docs: "Fastapi, Docker(Docker compose) and Postgres". PR [#5033](https://github.com/tiangolo/fastapi/pull/5033) by [@krishnardt](https://github.com/krishnardt).

    - deployment/versions.md
    - deployment/https.md
    - deployment/manually.md
    - deployment/concepts.md
    - deployment/cloud.md
    - deployment/server-workers.md
    - deployment/docker.md
  - How To - Recipes:
    - how-to/index.md
    - how-to/general.md
    - how-to/graphql.md
    - how-to/custom-request-and-route.md
    - how-to/conditional-openapi.md
    - how-to/extending-openapi.md