//   - Handover of IAM & STS Endpoints instead of manual definition in Veeam Backup & Replication. This allows Veeam
//     Agents to directly backup to object storage.
//
// An object storage system can implement one, multiple, or all functions.
//
//   - Optional (mandatory if <IAMSTS> is true): Set Endpoints for IAM and STS processing.
//

Date:   Sat Jun 15 11:27:17 2019 -0700

    [security] Match ${aws:username} exactly instead of prefix match (#7791)

    This PR fixes a security issue where an IAM user based
    on his policy is granted more privileges than restricted
    by the users IAM policy.

    This is due to an issue of prefix based Matcher() function
    which was incorrectly matching prefix based on resource
    prefixes instead of exact match.
```

# AssumeRoleWithCustomToken [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

## Introduction

To integrate with custom authentication methods using the [Identity Management Plugin](../iam/identity-management-plugin.md)), MinIO provides an STS API extension called `AssumeRoleWithCustomToken`.

After configuring the plugin, use the generated Role ARN with `AssumeRoleWithCustomToken` to get temporary credentials to access object storage.

	// The ARN of the temporary security credentials that are returned from the
	// AssumeRole action. For more information about ARNs and how to use them in
	// policies, see IAM Identifiers (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_identifiers.html)
	// in Using IAM.
	//
	// Arn is a required field
	Arn string

	// A unique identifier that contains the role ID and the role session name of

| `minio_node_iam_sync_failures`             | Number of failed IAM data syncs since server start.         |
| `minio_node_iam_sync_successes`            | Number of successful IAM data syncs since server start.     |

## Information Lifecycle Management (ILM) Metrics

  unencrypted FTP communication (Not-recommended)

## Scope

- All IAM Credentials are allowed access excluding rotating credentials, rotating credentials
  are not allowed to login via FTP/SFTP ports, you must use S3 API port for if you are using
  rotating credentials.

- Access to bucket(s) and object(s) are governed via IAM policies associated with the incoming
  login credentials.

			Sensitive:   true,
			Type:        "string",
			Secret:      true,
		},
		config.HelpKV{
			Key:         RolePolicy,
			Description: `Set the IAM access policies applicable to this client application and IDP e.g. "app-bucket-write,app-bucket-list"` + defaultHelpPostfix(RolePolicy),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{

	"bytes"
	"encoding/json"
	"io"
	"net/http"

	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
	xnet "github.com/minio/pkg/v3/net"
	"github.com/minio/pkg/v3/policy"
)

// Env IAM OPA URL
const (
	URL       = "url"
	AuthToken = "auth_token"

	EnvPolicyOpaURL       = "MINIO_POLICY_OPA_URL"
	EnvPolicyOpaAuthToken = "MINIO_POLICY_OPA_AUTH_TOKEN"
)

//
// Reference: https://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html

const (
	arnPrefixArn        = "arn"
	arnPartitionMinio   = "minio"
	arnServiceIAM       = "iam"
	arnResourceTypeRole = "role"
)

// ARN - representation of resources based on AWS ARNs.
type ARN struct {
	Partition    string
	Service      string
	Region       string
	ResourceType string

- Creation and deletion of buckets and objects
- Creation and deletion of all IAM users, groups, policies and their mappings to users or groups
- Creation of STS credentials
- Creation and deletion of service accounts (except those owned by the root user)
- Changes to Bucket features such as:
  - Bucket Policies