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[Filebeat] Select output index based on the source input (elastic#14010)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| // Licensed to Elasticsearch B.V. under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. Elasticsearch B.V. licenses this file to you under | ||
| // the Apache License, Version 2.0 (the "License"); you may | ||
| // not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
|
||
| package channel | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
|
|
||
| "github.com/elastic/beats/libbeat/beat" | ||
| "github.com/elastic/beats/libbeat/common" | ||
| "github.com/elastic/beats/libbeat/processors" | ||
| "github.com/elastic/beats/libbeat/processors/actions" | ||
| ) | ||
|
|
||
| func TestProcessorsForConfig(t *testing.T) { | ||
| testCases := map[string]struct { | ||
| beatInfo beat.Info | ||
| configStr string | ||
| clientCfg beat.ClientConfig | ||
| event beat.Event | ||
| expectedFields map[string]string | ||
| }{ | ||
| "Simple static index": { | ||
| configStr: "index: 'test'", | ||
| expectedFields: map[string]string{ | ||
| "@metadata.raw_index": "test", | ||
| }, | ||
| }, | ||
| "Index with agent info + timestamp": { | ||
| beatInfo: beat.Info{Beat: "TestBeat", Version: "3.9.27"}, | ||
| configStr: "index: 'beat-%{[agent.name]}-%{[agent.version]}-%{+yyyy.MM.dd}'", | ||
| event: beat.Event{Timestamp: time.Date(1999, time.December, 31, 23, 0, 0, 0, time.UTC)}, | ||
| expectedFields: map[string]string{ | ||
| "@metadata.raw_index": "beat-TestBeat-3.9.27-1999.12.31", | ||
| }, | ||
| }, | ||
| "Set index in ClientConfig": { | ||
| clientCfg: beat.ClientConfig{ | ||
| Processing: beat.ProcessingConfig{ | ||
| Processor: makeProcessors(&setRawIndex{"clientCfgIndex"}), | ||
| }, | ||
| }, | ||
| expectedFields: map[string]string{ | ||
| "@metadata.raw_index": "clientCfgIndex", | ||
| }, | ||
| }, | ||
| "ClientConfig processor runs after beat input Index": { | ||
| configStr: "index: 'test'", | ||
| clientCfg: beat.ClientConfig{ | ||
| Processing: beat.ProcessingConfig{ | ||
| Processor: makeProcessors(&setRawIndex{"clientCfgIndex"}), | ||
| }, | ||
| }, | ||
| expectedFields: map[string]string{ | ||
| "@metadata.raw_index": "clientCfgIndex", | ||
| }, | ||
| }, | ||
| "Set field in input config": { | ||
| configStr: `processors: [add_fields: {fields: {testField: inputConfig}}]`, | ||
| expectedFields: map[string]string{ | ||
| "fields.testField": "inputConfig", | ||
| }, | ||
| }, | ||
| "Set field in ClientConfig": { | ||
| clientCfg: beat.ClientConfig{ | ||
| Processing: beat.ProcessingConfig{ | ||
| Processor: makeProcessors(actions.NewAddFields(common.MapStr{ | ||
| "fields": common.MapStr{"testField": "clientConfig"}, | ||
| }, false)), | ||
| }, | ||
| }, | ||
| expectedFields: map[string]string{ | ||
| "fields.testField": "clientConfig", | ||
| }, | ||
| }, | ||
| "Input config processors run after ClientConfig": { | ||
| configStr: `processors: [add_fields: {fields: {testField: inputConfig}}]`, | ||
| clientCfg: beat.ClientConfig{ | ||
| Processing: beat.ProcessingConfig{ | ||
| Processor: makeProcessors(actions.NewAddFields(common.MapStr{ | ||
| "fields": common.MapStr{"testField": "clientConfig"}, | ||
| }, false)), | ||
| }, | ||
| }, | ||
| expectedFields: map[string]string{ | ||
| "fields.testField": "inputConfig", | ||
| }, | ||
| }, | ||
| } | ||
| for description, test := range testCases { | ||
| if test.event.Fields == nil { | ||
| test.event.Fields = common.MapStr{} | ||
| } | ||
| config, err := outletConfigFromString(test.configStr) | ||
| if err != nil { | ||
| t.Errorf("[%s] %v", description, err) | ||
| continue | ||
| } | ||
| processors, err := processorsForConfig(test.beatInfo, config, test.clientCfg) | ||
| if err != nil { | ||
| t.Errorf("[%s] %v", description, err) | ||
| continue | ||
| } | ||
| processedEvent, err := processors.Run(&test.event) | ||
| // We don't check if err != nil, because we are testing the final outcome | ||
| // of running the processors, including when some of them fail. | ||
| if processedEvent == nil { | ||
| t.Errorf("[%s] Unexpected fatal error running processors: %v\n", | ||
| description, err) | ||
| } | ||
| for key, value := range test.expectedFields { | ||
| field, err := processedEvent.GetValue(key) | ||
| if err != nil { | ||
| t.Errorf("[%s] Couldn't get field %s from event: %v", description, key, err) | ||
| continue | ||
| } | ||
| assert.Equal(t, field, value) | ||
| fieldStr, ok := field.(string) | ||
| if !ok { | ||
| // Note that requiring a string here is just to simplify the test setup, | ||
| // not a requirement of the underlying api. | ||
| t.Errorf("[%s] Field [%s] should be a string", description, key) | ||
| continue | ||
| } | ||
| if fieldStr != value { | ||
| t.Errorf("[%s] Event field [%s]: expected [%s], got [%s]", description, key, value, fieldStr) | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func TestProcessorsForConfigIsFlat(t *testing.T) { | ||
| // This test is regrettable, and exists because of inconsistencies in | ||
| // processor handling between processors.Processors and processing.group | ||
| // (which implements beat.ProcessorList) -- see processorsForConfig for | ||
| // details. The upshot is that, for now, if the input configuration specifies | ||
| // processors, they must be returned as direct children of the resulting | ||
| // processors.Processors (rather than being collected in additional tree | ||
| // structure). | ||
| // This test should be removed once we have a more consistent mechanism for | ||
| // collecting and running processors. | ||
| configStr := `processors: | ||
| - add_fields: {fields: {testField: value}} | ||
| - add_fields: {fields: {testField2: stuff}}` | ||
| config, err := outletConfigFromString(configStr) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| processors, err := processorsForConfig( | ||
| beat.Info{}, config, beat.ClientConfig{}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| assert.Equal(t, 2, len(processors.List)) | ||
| } | ||
|
|
||
| // setRawIndex is a bare-bones processor to set the raw_index field to a | ||
| // constant string in the event metadata. It is used to test order of operations | ||
| // for processorsForConfig. | ||
| type setRawIndex struct { | ||
| indexStr string | ||
| } | ||
|
|
||
| func (p *setRawIndex) Run(event *beat.Event) (*beat.Event, error) { | ||
| if event.Meta == nil { | ||
| event.Meta = common.MapStr{} | ||
| } | ||
| event.Meta["raw_index"] = p.indexStr | ||
| return event, nil | ||
| } | ||
|
|
||
| func (p *setRawIndex) String() string { | ||
| return fmt.Sprintf("set_raw_index=%v", p.indexStr) | ||
| } | ||
|
|
||
| // Helper function to convert from YML input string to an unpacked | ||
| // inputOutletConfig | ||
| func outletConfigFromString(s string) (inputOutletConfig, error) { | ||
| config := inputOutletConfig{} | ||
| cfg, err := common.NewConfigFrom(s) | ||
| if err != nil { | ||
| return config, err | ||
| } | ||
| if err := cfg.Unpack(&config); err != nil { | ||
| return config, err | ||
| } | ||
| return config, nil | ||
| } | ||
|
|
||
| // makeProcessors wraps one or more bare Processor objects in Processors. | ||
| func makeProcessors(procs ...processors.Processor) *processors.Processors { | ||
| procList := processors.NewList(nil) | ||
| procList.List = procs | ||
| return procList | ||
| } |
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