## What is Erasure Code?

Erasure code is a mathematical algorithm to reconstruct missing or corrupted data. MinIO uses Reed-Solomon code to shard objects into variable data and parity blocks. For example, in a 12 drive setup, an object can be sharded to a variable number of data and parity blocks across all the drives - ranging from six data and six parity blocks to ten data and two parity blocks.

	// Captures all batch jobs metrics globally
	globalBatchJobsMetrics batchJobMetrics

	// Indicates if server was started as `--address ":0"`
	globalDynamicAPIPort bool

	// Add new variable global values here.
)

var globalAuthPluginMutex sync.Mutex

func newGlobalAuthNPluginFn() *idplugin.AuthNPlugin {
	globalAuthPluginMutex.Lock()
	defer globalAuthPluginMutex.Unlock()

	"github.com/minio/pkg/v2/env"
)

const (
	// EnvIdentityTLSEnabled is an environment variable that controls whether the X.509
	// TLS STS API is enabled. By default, if not set, it is enabled.
	EnvIdentityTLSEnabled = "MINIO_IDENTITY_TLS_ENABLE"

	// EnvIdentityTLSSkipVerify is an environment variable that controls whether
	// MinIO verifies the client certificate present by the client
	// when requesting temp. credentials.

### 5. Setup MinIO with OpenID configuration URL

MinIO server expects environment variable for OpenID configuration url as `MINIO_IDENTITY_OPENID_CONFIG_URL`, this environment variable takes a single entry.

```
export MINIO_IDENTITY_OPENID_CONFIG_URL=https://localhost:9443/oauth2/oidcdiscovery/.well-known/openid-configuration

	}
	writeSuccessResponseJSON(w, v)
}

// KMSCreateKeyHandler - POST /minio/kms/v1/key/create?key-id=<master-key-id>
func (a kmsAPIHandlers) KMSCreateKeyHandler(w http.ResponseWriter, r *http.Request) {
	// If env variable MINIO_KMS_SECRET_KEY is populated, prevent creation of new keys
	ctx := newContext(r, w, "KMSCreateKey")
	if GlobalKMS != nil && GlobalKMS.IsLocal() {

## Cloud Scale Deployment

	cmd "github.com/minio/minio/cmd"
)

func main() {
	ctx := context.Background()

	endpoint := os.Getenv("MINIO_ENDPOINT")
	if endpoint == "" {
		log.Fatalf("Please specify a MinIO server endpoint environment variable like:\n\n\texport MINIO_ENDPOINT=http://localhost:9000")
	}

	appParams := cmd.OpenIDClientAppParams{
		ClientID:     "minio-client-app",
		ClientSecret: "minio-client-app-secret",

```bash helm install --set existingSecret=my-minio-secret minio/minio ``` The following fields are expected in the secret: | .data.<key> in Secret | Corresponding variable | Description | Required | |:-------- | `rootUser` | `rootUser` | Root user. | yes | | `rootPassword` | `rootPassword` | Root password. | yes | All corresponding variables will be ignored in values file. Configure TLS ---------- To enable TLS for MinIO containers, acquire TLS certificates from a CA or create self-signed certificates....

```bash helm install --set existingSecret=my-minio-secret minio/minio ``` The following fields are expected in the secret: | .data.<key> in Secret | Corresponding variable | Description | Required | |:-------- | `rootUser` | `rootUser` | Root user. | yes | | `rootPassword` | `rootPassword` | Root password. | yes | All corresponding variables will be ignored in values file. Configure TLS ---------- To enable TLS for MinIO containers, acquire TLS certificates from a CA or create self-signed certificates....

	_ = zb0001Mask
	if z.ReplicationStats == nil {
		zb0001Len--
		zb0001Mask |= 0x80
	}
	if z.AllTierStats == nil {
		zb0001Len--
		zb0001Mask |= 0x100
	}
	// variable map header, size zb0001Len
	err = en.Append(0x80 | uint8(zb0001Len))
	if err != nil {
		return
	}
	if zb0001Len == 0 {
		return
	}
	// write "ch"
	err = en.Append(0xa2, 0x63, 0x68)