# OPA Quickstart Guide [![Slack](https://slack.minio.io/slack?type=svg)](https://slack.minio.io)

OPA is a lightweight general-purpose policy engine that can be co-located with MinIO server, in this document we talk about how to use OPA HTTP API to authorize requests. It can be used with any type of credentials (STS based like OpenID or LDAP, regular IAM users or service accounts).

OPA is enabled through MinIO's Access Management Plugin feature.

## Get started

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import "net/http"

// Standard cross domain policy information located at https://s3.amazonaws.com/crossdomain.xml

 * <p>
 * Because most of the logic lives in {@link jcifs.internal.smb1.ServerMessageBlock}
 * the tests create a mock {@link Configuration} and instantiate SmbComQueryInformation
 * directly.  Since the byte‑encoding logic is located in the superclass, the
 * tests verify that the byte buffer created by {@link
 * SmbComQueryInformation#writeBytesWireFormat(byte[], int)} is correctly built
 * for both Unicode and OEM encodings.
 */

        if (extPos >= 0) {
            return path.substring(0, extPos);
        }
        return path;
    }

    /**
     * Returns the root directory where the class file of the specified class is located.
     *
     * @param clazz
     *            The class. Must not be {@literal null}.
     * @return The root directory.
     * @see #getBuildDir(String)
     */

- This API behavior is limited for following **read** operations on files inside a zip archive:
  - `HeadObject`
  - `GetObject`
  - `ListObjectsV2`
- If the ZIP file directory isn't located within the last 100MB the file will not be parsed.
- A maximum of 100M inside a single zip is allowed. However, a reasonable limit of 100,000 files inside a single ZIP archive is recommended for best performance and memory usage trade-off.

        String message = "This is a very long error message that describes in detail why the job was not found. "
                + "The job with identifier XYZ123 was expected to be in the system but could not be located "
                + "after searching through all available job registries and scheduled task databases.";

        JobNotFoundException exception = new JobNotFoundException(message);

        assertNotNull(exception);

TensorFlow via the command `import tensorflow as tf`.

The primary function of this module is to import all of the public TensorFlow
interfaces into a single place. The interfaces themselves are located in
sub-modules, as described below.

Note that the file `__init__.py` in the TensorFlow source code tree is actually
only a placeholder to enable test cases to run. The TensorFlow build replaces

In the case of Spanish, the 2-letter code is `es`. So, the directory for Spanish translations is located at `docs/es/`.

/// tip

The main ("official") language is English, located at `docs/en/`.

///

Now run the live server for the docs in Spanish:

<div class="termy">

```console

Wildcards can be used, for example `mc support inspect ALIAS/bucket/path/**/xl.meta` will collect all `xl.meta` recursively. `mc support inspect ALIAS/bucket/path/to/file.txt/*/part.*` will collect parts for all versions for the object located at `bucket/path/to/file.txt`.

`xl-meta` accepts zip files as input and will output all `xl.meta` files found within the archive. For example:

```
$ mc support inspect play/test123/test*/xl.meta

## Publish MinIO events via AMQP

Install RabbitMQ from [here](https://www.rabbitmq.com/).

### Step 1: Add AMQP endpoint to MinIO

The AMQP configuration is located under the sub-system `notify_amqp` top-level key. Create a configuration key-value pair here for your AMQP instance. The key is a name for your AMQP endpoint, and the value is a collection of key-value parameters described in the table below.