t.Errorf("%s: average delta is too high. expected: %d, got %d", tc.filename, tc.tolerance, avgDelta)
			continue
		}
	}
}

func TestSubImage(t *testing.T) {
	m0, err := readImg("../testdata/video-001.gif")
	if err != nil {
		t.Fatalf("readImg: %v", err)
	}
	m0 = m0.(*image.Paletted).SubImage(image.Rect(0, 0, 50, 30))
	var buf bytes.Buffer
	err = Encode(&buf, m0, nil)
	if err != nil {
		t.Fatalf("Encode: %v", err)

- Cluster probe available at `/minio/health/cluster`

Read more on how to use these endpoints in [MinIO healthcheck guide](https://github.com/minio/minio/blob/master/docs/metrics/healthcheck/README.md).

## Prometheus Probe

The following variables will be set by the node-cache images - registry.k8s.io/k8s-dns-node-cache:1.15.6 or later.
The values will be determined by reading the kube-dns configMap for custom
Upstream server configuration.
`__PILLAR__CLUSTER__DNS__` - Upstream server for in-cluster queries.
`__PILLAR__UPSTREAM__SERVERS__` - Upstream servers for external queries.

The *.png and README.original files in this directory are copied from
libpng.org, specifically contrib/pngsuite/* in libpng 1.6.26.

README.original gives the following license for those files:

	Permission to use, copy, and distribute these images for any purpose
	and without fee is hereby granted.

The files basn0g01-30.png, basn0g02-29.png and basn0g04-31.png are in fact not
part of pngsuite but were created from files in pngsuite. Their non-power-of-2

A test README file...

// license that can be found in the LICENSE file.

This command generates Go code (in the parent directory) for all
the architecture-specific opcodes, blocks, and rewrites. See the
"Hacking on SSA" section in the parent directory's README.md for
more information.

To regenerate everything, run "go generate" on the ssa package

that will be preserved when next/*.txt is concatenated into go1.XX.txt.)

When you add a file to the api/next directory, you must add at least one file

```

### 3. Configuring Prometheus

#### 3.1 Authenticated Prometheus config

> If MinIO is configured to expose metrics without authentication, you don't need to use `mc` to generate prometheus config. You can skip reading further and move to 3.2 section.

├── library-a
│   ├── build.gradle.kts
│   └── README.md
├── library-b
│   ├── build.gradle.kts
│   └── README.md
└── settings.gradle.kts
----
=====
[.multi-language-sample]
=====
.Project structure
[source, groovy]
----
├── internal-module
│   └── build.gradle
├── library-a
│   ├── build.gradle
│   └── README.md
├── library-b
│   ├── build.gradle
│   └── README.md
└── settings.gradle
----
=====

Readme