if err = saveServerConfig(ctx, objectAPI, result.Cfg); err != nil {
		return
	}

	// Write the config input KV to history.
	err = saveServerConfigHistory(ctx, objectAPI, kvBytes)
	return
}

// GetConfigKVHandler - GET /minio/admin/v3/get-config-kv?key={key}
//
// `key` can be one of three forms:
// 1. `subsys:target` -> request for config of a single subsystem and target pair.

	m.Store(name, p)
	return nil
}

func getMappedPolicy(kv *mvccpb.KeyValue, m *xsync.MapOf[string, MappedPolicy], basePrefix string) error {
	var p MappedPolicy
	err := getIAMConfig(&p, kv.Value, string(kv.Key))
	if err != nil {
		if err == errConfigNotFound {
			return errNoSuchPolicy
		}
		return err
	}
	name := extractPathPrefixAndSuffix(string(kv.Key), basePrefix, ".json")
	m.Store(name, p)
	return nil
}

		// Config KV operations.
		if enableConfigOps {
			adminRouter.Methods(http.MethodGet).Path(adminVersion+"/get-config-kv").HandlerFunc(adminMiddleware(adminAPI.GetConfigKVHandler)).Queries("key", "{key:.*}")
			adminRouter.Methods(http.MethodPut).Path(adminVersion + "/set-config-kv").HandlerFunc(adminMiddleware(adminAPI.SetConfigKVHandler))

			kvs, ok := mv.Value.(jstream.KVS)
			if ok {
				for _, kv := range kvs {
					if sset.Contains(kv.Key) {
						// Reject duplicate conditions or expiration.
						return nil, fmt.Errorf("input policy has multiple %s, please fix your client code", kv.Key)
					}
					sset.Add(kv.Key)
				}
			}
			e.Encode(kvs)
		}
	}
	return &buf, d.Err()
}

				}
				tagMap = t.ToMap()
			}

			for _, kv := range r.Flags.Filter.Tags {
				for t, v := range tagMap {
					if kv.Match(BatchJobKV{Key: t, Value: v}) {
						return true
					}
				}
			}

			// None of the provided tags filter match skip the object
			return false
		}

		if len(r.Flags.Filter.Metadata) > 0 {
			for _, kv := range r.Flags.Filter.Metadata {

			t, err := tags.ParseObjectTags(obj.UserTags)
			if err != nil {
				return false
			}
			tagMap = t.ToMap()
		}

		for _, kv := range ef.Tags {
			// Object (version) must match all tags specified in
			// the filter
			var match bool
			for t, v := range tagMap {
				if kv.Match(BatchJobKV{Key: t, Value: v}) {
					match = true
				}
			}
			if !match {
				return false
			}
		}
	}

![s3a-config](https://github.com/minio/minio/blob/master/docs/bigdata/images/image5.png?raw=true "custom core-site")

```
sudo pip install yq
alias kv-pairify='yq ".configuration[]" | jq ".[]" | jq -r ".name + \"=\" + .value"'
```

	if v == nil {
		bugLogIf(ctx, errInvalidArgument)
		return errInvalidArgument
	}

	nv := make(textproto.MIMEHeader, len(v))
	for k, kv := range v {
		// Canonicalize all headers, to remove any duplicates.
		nv[http.CanonicalHeaderKey(k)] = kv
	}

	// Save all supported headers.
	for _, supportedHeader := range supportedHeaders {
		value, ok := nv[http.CanonicalHeaderKey(supportedHeader)]
		if ok {

	CollectorPath collectorPath
	// List of all metric descriptors that could be returned by the loader.
	Descriptors []MetricDescriptor
	// (Optional) Extra (constant) label KV pairs to be added to each metric in
	// the group.
	ExtraLabels map[string]string

	// Loader functions to load metrics. Only one of these will be set. Metrics

	// Update the actual server config on disk.
	if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	// Write to the config input KV to history.
	if err = saveServerConfigHistory(ctx, objectAPI, []byte(cfgData)); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	writeSuccessResponseHeadersOnly(w)
}