### 2. Run MinIO in federated mode

Bucket lookup from DNS federation requires two dependencies

- etcd (for bucket DNS service records)
- CoreDNS (for DNS management based on populated bucket DNS service records, optional)

## Architecture

![bucket-lookup](https://github.com/minio/minio/blob/master/docs/federation/lookup/bucket-lookup.png?raw=true)

### Environment variables

# Get Current User { #get-current-user }

In the previous chapter the security system (which is based on the dependency injection system) was giving the *path operation function* a `token` as a `str`:

{* ../../docs_src/security/tutorial001_an_py39.py hl[12] *}

But that is still not that useful.

Let's make it give us the current user.

## Create a user model { #create-a-user-model }

First, let's create a Pydantic user model.

	if 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' {
		return false
	}

	switch c {
	case '-', '_', '.', '/', '*':
		return false
	}
	return true
}

// s3URLEncode is based on Golang's url.QueryEscape() code,
// while considering some S3 exceptions:
//   - Avoid encoding '/' and '*'
//   - Force encoding of '~'
func s3URLEncode(s string) string {
	spaceCount, hexCount := 0, 0

	}
	defer buf.Close()

	if !*flags.SymABIs {
		buf.WriteString(objabi.HeaderString())
		fmt.Fprintf(buf, "!\n")
	}

	// Set macros for GOEXPERIMENTs so we can easily switch
	// runtime assembly code based on them.
	if objabi.LookupPkgSpecial(ctxt.Pkgpath).AllowAsmABI {
		for _, exp := range buildcfg.Experiment.Enabled() {
			flags.D = append(flags.D, "GOEXPERIMENT_"+exp)
		}
	}

	var ok, diag bool

import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Creates, based on your criteria, a JUnit test suite that exhaustively tests a {@code Multiset}
 * implementation.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtIncompatible
public class MultisetTestSuiteBuilder<E>

     */
    @Override
    public void setInitParameterMap(final Map<String, Object> params) {
        initParamMap = params;
    }

    /**
     * Executes the request based on the HTTP method.
     * @param request The request data.
     * @return The response data.
     */
    @Override
    public ResponseData execute(final RequestData request) {

            logger.debug("Thumbnail generator is not found: {}", docMap != null ? docMap.get("url") : docMap);
        }
        return false;
    }

    /**
     * Gets the image filename for a document based on its document map.
     *
     * @param docMap the document data map
     * @return the generated image filename
     */
    protected String getImageFilename(final Map<String, Object> docMap) {

        });
        return asHtml(path_AdminWebconfig_AdminWebconfigJsp).renderWith(data -> {
            searchPaging(data, form);
        });
    }

    /**
     * Searches for web crawler configurations based on the provided search criteria.
     *
     * @param form the search form containing search criteria
     * @return HTML response with filtered web config results
     */
    @Execute

    /**
     * This method checks if the pattern matches the originalRepository. Valid patterns:
     * <ul>
     * <li>{@code *} = everything,</li>
     * <li>{@code external:*} = everything not on the localhost and not file based,</li>
     * <li>{@code external:http:*} = any repository not on the localhost using HTTP,</li>
     * <li>{@code repo,repo1} = {@code repo} or {@code repo1},</li>
     * <li>{@code *,!repo1} = everything except {@code repo1}.</li>

- On Operator based MinIO deployments, you need to modify the `tenant.yaml` specification and modify the `pools:` section from two entries to a single entry. After making relevant changes, proceed to execute `kubectl apply -f tenant.yaml`.