This change adds `access` format support for notifications to a Elasticsearch server, and it refactors `namespace` format support. In the case of `access` format, for each event in Minio, a JSON document is inserted into Elasticsearch with its timestamp set to the event's timestamp, and with the ID generated automatically by elasticsearch. No events are modified or deleted in this mode. In the case of `namespace` format, for each event in Minio, a JSON document is keyed together by the bucket and object name is updated in Elasticsearch. In the case of an object being created or over-written in Minio, a new document or an existing document is inserted into the Elasticsearch index. If an object is deleted in Minio, the corresponding document is deleted from the Elasticsearch index. Additionally, this change upgrades Elasticsearch support to the 5.x series. This is a breaking change, and users of previous elasticsearch versions should upgrade. Also updates documentation on Elasticsearch notification target usage and has a link to an elasticsearch upgrade guide. This is the last patch that finally resolves #3928.
130 lines
3.2 KiB
Go
130 lines
3.2 KiB
Go
// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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import (
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"fmt"
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"net/url"
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"strings"
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"golang.org/x/net/context"
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"gopkg.in/olivere/elastic.v5/uritemplates"
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)
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// IndicesDeleteService allows to delete existing indices.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/indices-delete-index.html
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// for details.
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type IndicesDeleteService struct {
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client *Client
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pretty bool
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index []string
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timeout string
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masterTimeout string
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}
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// NewIndicesDeleteService creates and initializes a new IndicesDeleteService.
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func NewIndicesDeleteService(client *Client) *IndicesDeleteService {
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return &IndicesDeleteService{
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client: client,
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index: make([]string, 0),
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}
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}
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// Index adds the list of indices to delete.
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// Use `_all` or `*` string to delete all indices.
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func (s *IndicesDeleteService) Index(index []string) *IndicesDeleteService {
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s.index = index
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return s
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}
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// Timeout is an explicit operation timeout.
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func (s *IndicesDeleteService) Timeout(timeout string) *IndicesDeleteService {
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s.timeout = timeout
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return s
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}
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// MasterTimeout specifies the timeout for connection to master.
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func (s *IndicesDeleteService) MasterTimeout(masterTimeout string) *IndicesDeleteService {
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s.masterTimeout = masterTimeout
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return s
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}
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// Pretty indicates that the JSON response be indented and human readable.
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func (s *IndicesDeleteService) Pretty(pretty bool) *IndicesDeleteService {
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s.pretty = pretty
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return s
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}
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// buildURL builds the URL for the operation.
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func (s *IndicesDeleteService) buildURL() (string, url.Values, error) {
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// Build URL
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path, err := uritemplates.Expand("/{index}", map[string]string{
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"index": strings.Join(s.index, ","),
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})
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if err != nil {
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return "", url.Values{}, err
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}
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// Add query string parameters
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params := url.Values{}
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if s.pretty {
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params.Set("pretty", "1")
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}
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if s.timeout != "" {
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params.Set("timeout", s.timeout)
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}
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if s.masterTimeout != "" {
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params.Set("master_timeout", s.masterTimeout)
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}
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return path, params, nil
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}
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// Validate checks if the operation is valid.
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func (s *IndicesDeleteService) Validate() error {
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var invalid []string
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if len(s.index) == 0 {
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invalid = append(invalid, "Index")
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}
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if len(invalid) > 0 {
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return fmt.Errorf("missing required fields: %v", invalid)
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}
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return nil
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}
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// Do executes the operation.
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func (s *IndicesDeleteService) Do(ctx context.Context) (*IndicesDeleteResponse, error) {
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// Check pre-conditions
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if err := s.Validate(); err != nil {
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return nil, err
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}
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// Get URL for request
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path, params, err := s.buildURL()
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if err != nil {
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return nil, err
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}
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// Get HTTP response
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res, err := s.client.PerformRequest(ctx, "DELETE", path, params, nil)
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if err != nil {
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return nil, err
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}
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// Return operation response
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ret := new(IndicesDeleteResponse)
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if err := s.client.decoder.Decode(res.Body, ret); err != nil {
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return nil, err
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}
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return ret, nil
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}
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// -- Result of a delete index request.
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// IndicesDeleteResponse is the response of IndicesDeleteService.Do.
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type IndicesDeleteResponse struct {
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Acknowledged bool `json:"acknowledged"`
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}
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