## Container Images

Docker has been one of the main tools to create and manage **container images** and **containers**.

And there's a public <a href="https://hub.docker.com/" class="external-link" target="_blank">Docker Hub</a> with pre-made **official container images** for many tools, environments, databases, and applications.

!!! 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

| `minio_bucket_api_traffic_sent_bytes`        | `counter` | Total number of bytes received for a bucket                      | `bucket,type,server,pool_index`         |
| `minio_bucket_api_inflight_total`            | `gauge`   | Total number of requests currently in flight for a bucket        | `bucket,name,type,server,pool_index`    |

#-----------------------------------------------------------------------------
# Target: docker
#-----------------------------------------------------------------------------
.PHONY: push

# for now docker is limited to Linux compiles - why ?
include tools/istio-docker.mk

push: docker.push ## Build and push docker images to registry defined by $HUB and $TAG