# Configurações e Variáveis de Ambiente { #settings-and-environment-variables }

Em muitos casos, sua aplicação pode precisar de configurações externas, por exemplo chaves secretas, credenciais de banco de dados, credenciais para serviços de e-mail, etc.

A maioria dessas configurações é variável (pode mudar), como URLs de banco de dados. E muitas podem ser sensíveis, como segredos.

Por esse motivo, é comum fornecê-las em variáveis de ambiente lidas pela aplicação.

  - [Deployment based on Kubernetes](https://docs.min.io/community/minio-object-store/operations/deployments/kubernetes.html)
  - [Deployment based on MinIO Helm Chart](https://github.com/helm/charts/tree/master/stable/minio)

## **3. Configure Hadoop, Spark, Hive to use MinIO**

		if err != nil {
			return c, err
		}

		if p.ClaimUserinfo && configURL == "" {
			return c, errors.New("please specify config_url to enable fetching claims from UserInfo endpoint")
		}

		if scopeList := getCfgVal(Scopes); scopeList != "" {
			var scopes []string
			for scope := range strings.SplitSeq(scopeList, ",") {
				scope = strings.TrimSpace(scope)

	// Quorum is effectively = total clients subtracted with tolerance limit
	quorum := len(restClnts) - tolerance
	if !isReadLock {
		// In situations for write locks, as a special case
		// to avoid split brains we make sure to acquire
		// quorum + 1 when tolerance is exactly half of the
		// total locker clients.
		if quorum == tolerance {
			quorum++
		}
	}

			Action:          policy.GetObjectAction,
			BucketName:      bucketName,
			ConditionValues: getConditionValues(r, "", cred),
			IsOwner:         owner,
			ObjectName:      "",
			Claims:          cred.Claims,
		}) {
			rd = true
		}

		if globalIAMSys.IsAllowed(policy.Args{
			AccountName:     cred.AccessKey,
			Groups:          cred.Groups,
			Action:          policy.PutObjectAction,

mas você pode querer omiti-los do resultado se eles não foram realmente armazenados.

Por exemplo, se você tem modelos com muitos atributos opcionais em um banco de dados NoSQL, mas não quer enviar respostas JSON muito longas cheias de valores padrão.

### Use o parâmetro `response_model_exclude_unset` { #use-the-response-model-exclude-unset-parameter }

Você pode definir o parâmetro `response_model_exclude_unset=True` do *decorador de operação de rota*:

MinIO's own certificate in the bundle with key public.crt. ## If certSecret is left empty and tls is enabled, this chart installs the public certificate from .Values.tls.certSecret. trustedCertsSecret: "" ## Enable persistence using Persistent Volume Claims ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/ ## persistence: enabled: true annotations: {} ## A manually managed Persistent Volume and Claim ## Requires persistence.enabled: true ## If defined, PVC must be created manually before...

MinIO's own certificate in the bundle with key public.crt. ## If certSecret is left empty and tls is enabled, this chart installs the public certificate from .Values.tls.certSecret. trustedCertsSecret: "" ## Enable persistence using Persistent Volume Claims ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/ ## persistence: enabled: true annotations: {} ## A manually managed Persistent Volume and Claim ## Requires persistence.enabled: true ## If defined, PVC must be created manually before...

MinIO's own certificate in the bundle with key public.crt. ## If certSecret is left empty and tls is enabled, this chart installs the public certificate from .Values.tls.certSecret. trustedCertsSecret: "" ## Enable persistence using Persistent Volume Claims ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/ ## persistence: enabled: true annotations: {} ## A manually managed Persistent Volume and Claim ## Requires persistence.enabled: true ## If defined, PVC must be created manually before...

MinIO's own certificate in the bundle with key public.crt. ## If certSecret is left empty and tls is enabled, this chart installs the public certificate from .Values.tls.certSecret. trustedCertsSecret: "" ## Enable persistence using Persistent Volume Claims ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/ ## persistence: enabled: true annotations: {} ## A manually managed Persistent Volume and Claim ## Requires persistence.enabled: true ## If defined, PVC must be created manually before...