sha256hex = ""
	}

	var forceMD5 []byte
	// Optimization: If SSE-KMS and SSE-C did not request Content-Md5. Use uuid as etag. Optionally enable this also
	// for server that is started with `--no-compat`.
	if !etag.ContentMD5Requested(r.Header) && (crypto.S3KMS.IsEncrypted(mi.UserDefined) || crypto.SSEC.IsRequested(r.Header) || !globalServerCtxt.StrictS3Compat) {
		forceMD5 = mustGetUUIDBytes()
	}

firewall-gateway.de
my-gateway.de
my-router.de
spdns.de
spdns.eu
firewall-gateway.net
my-firewall.org
myfirewall.org
spdns.org

// Seidat : https://www.seidat.com
// Submitted by Artem Kondratev <accounts@seidat.com>
seidat.net

// Sellfy : https://sellfy.com
// Submitted by Yuriy Romadin <******@****.***>
sellfy.store

// Senseering GmbH : https://www.senseering.de

          .add("content-type", "text/plain")
          .add("content-length", "3")
          .build(),
      )
      .assertBody("abc")
      .assertSentRequestAtMillis(sentAt, receivedAt)
      .assertReceivedResponseAtMillis(sentAt, receivedAt)
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.method).isEqualTo("GET")
    assertThat(recordedRequest.headers["User-Agent"]).isEqualTo("SyncApiTest")

// it consists of a 128 bit hex value (32 hex chars) and exactly
// one '-' followed by a 32-bit number.
// This special case addresses randomly-generated ETags generated
// by the MinIO server when running in non-compat mode. These
// random ETags are not encrypt.
//
// Calling DecryptETag with a non-randomly generated ETag will
// fail.
func DecryptETag(key crypto.ObjectKey, object ObjectInfo) (string, error) {

                    /*
                     * TODO Extensions like Flex Mojos use custom scopes like "merged", "internal", "external", etc. In
                     * order to don't break backward-compat with those, only warn but don't error out.
                     */
                    validateEnum(
                            prefix,
                            "scope",
                            problems,

				"application/vnd.ms-htmlhelp",
				"application/vnd.ms-ims",
				"application/vnd.ms-lrm",
				"application/vnd.ms-outlook",
				"application/vnd.ms-outlook-pst",
				"application/vnd.ms-pki.seccat",
				"application/vnd.ms-pki.stl",
				"application/vnd.ms-playready.initiator+xml",
				"application/vnd.ms-powerpoint",
				"application/vnd.ms-powerpoint.addin.macroenabled.12",

				}
				globalScannerMetrics.setCycle(&cycleInfo)
				tmp := make([]byte, 8, 8+cycleInfo.Msgsize())
				// Cycle for backward compat.
				binary.LittleEndian.PutUint64(tmp, cycleInfo.next)
				tmp, _ = cycleInfo.MarshalMsg(tmp)
				err = saveConfig(ctx, objAPI, dataUsageBloomNamePath, tmp)
				if err != nil {

A partir daí, perto do final do `Dockerfile`, copiamos todo o código. Como isso é o que **muda com mais frequência**, colocamos perto do final, porque quase sempre, qualquer coisa depois desse passo não será capaz de usar o cache.

```Dockerfile
COPY ./app /code/app
```

### Construindo a Imagem Docker

<img src="https://fastapi.tiangolo.com/img/async/concurrent-burgers/concurrent-burgers-02.png" alt="illustration">

El cajero 💁 le dice algo al chico de la cocina 👨‍🍳 para que sepa que tiene que preparar tus hamburguesas 🍔 (a pesar de que actualmente está preparando las de los clientes anteriores).

<img src="https://fastapi.tiangolo.com/img/async/concurrent-burgers/concurrent-burgers-03.png" alt="illustration">

		return
	}

	var forceMD5 []byte
	// Optimization: If SSE-KMS and SSE-C did not request Content-Md5. Use uuid as etag. Optionally enable this also
	// for server that is started with `--no-compat`.
	kind, _ := crypto.IsRequested(formValues)
	if !etag.ContentMD5Requested(formValues) && (kind == crypto.SSEC || kind == crypto.S3KMS || !globalServerCtxt.StrictS3Compat) {
		forceMD5 = mustGetUUIDBytes()
	}