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Generate fields, dashboards, config from mage
Generate the fields, dashboards, and config files from mage to make it reusable across Beats (include x-pack). This allows x-pack/filebeat to generate its own unique fields, dashboards, and config.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| // 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 main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "flag" | ||
| "fmt" | ||
| "go/format" | ||
| "io/ioutil" | ||
| "log" | ||
| "os" | ||
| "path" | ||
|
|
||
| "github.com/elastic/beats/libbeat/asset" | ||
| "github.com/elastic/beats/libbeat/generator/fields" | ||
| "github.com/elastic/beats/licenses" | ||
| ) | ||
|
|
||
| var usageText = ` | ||
| Usage: module_fields [flags] [module-dir] | ||
| module_fields generates a fields.go file containing a copy of the module's | ||
| field.yml data in a format that can be embedded in Beat's binary. module-dir | ||
| should be the directory containing modules (e.g. filebeat/module). | ||
| Options: | ||
| `[1:] | ||
|
|
||
| var ( | ||
| beatName string | ||
| license string | ||
| ) | ||
|
|
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| func init() { | ||
| flag.StringVar(&beatName, "beat", "", "Name of the beat. (Required)") | ||
| flag.StringVar(&license, "license", "ASL2", "License header for generated file.") | ||
| flag.Usage = usageFlag | ||
| } | ||
|
|
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| func main() { | ||
| log.SetFlags(0) | ||
| flag.Parse() | ||
|
|
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| if beatName == "" { | ||
| log.Fatal("You must use -beat to specify the beat name.") | ||
| } | ||
|
|
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| license, err := licenses.Find(license) | ||
| if err != nil { | ||
| log.Fatalf("Invalid license specifier: %v", err) | ||
| } | ||
|
|
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| args := flag.Args() | ||
| if len(args) != 1 { | ||
| log.Fatal("module-dir must be passed as an argument.") | ||
| } | ||
| dir := args[0] | ||
|
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| modules, err := fields.GetModules(dir) | ||
| if err != nil { | ||
| log.Fatalf("Error fetching modules: %v", err) | ||
| } | ||
|
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| for _, module := range modules { | ||
| files, err := fields.CollectFiles(module, dir) | ||
| if err != nil { | ||
| log.Fatalf("Error fetching files for module %v: %v", module, err) | ||
| } | ||
|
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| data, err := fields.GenerateFieldsYml(files) | ||
| if err != nil { | ||
| log.Fatalf("Error fetching files for module %v: %v", module, err) | ||
| } | ||
|
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| encData, err := asset.EncodeData(string(data)) | ||
| if err != nil { | ||
| log.Fatalf("Error encoding the data: %v", err) | ||
| } | ||
|
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| var buf bytes.Buffer | ||
| asset.Template.Execute(&buf, asset.Data{ | ||
| License: license, | ||
| Beat: beatName, | ||
| Name: module, | ||
| Data: encData, | ||
| Package: module, | ||
| }) | ||
|
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| bs, err := format.Source(buf.Bytes()) | ||
| if err != nil { | ||
| log.Fatalf("Error creating golang file from template: %v", err) | ||
| } | ||
|
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| err = ioutil.WriteFile(path.Join(dir, module, "fields.go"), bs, 0644) | ||
| if err != nil { | ||
| log.Fatalf("Error writing fields.go: %v", err) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func usageFlag() { | ||
| fmt.Fprintf(os.Stderr, usageText) | ||
| flag.PrintDefaults() | ||
| } |
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