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[Ingest Manager] Download snapshot artifacts from snapshots repo (#18685
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93 changes: 93 additions & 0 deletions
93
x-pack/elastic-agent/pkg/artifact/download/snapshot/downloader.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| // Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| // or more contributor license agreements. Licensed under the Elastic License; | ||
| // you may not use this file except in compliance with the Elastic License. | ||
|
|
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| package snapshot | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| gohttp "net/http" | ||
| "strings" | ||
|
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| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact" | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact/download" | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact/download/http" | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/release" | ||
| ) | ||
|
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| // NewDownloader creates a downloader which first checks local directory | ||
| // and then fallbacks to remote if configured. | ||
| func NewDownloader(config *artifact.Config) (download.Downloader, error) { | ||
| cfg, err := snapshotConfig(config) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return http.NewDownloader(cfg), nil | ||
| } | ||
|
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| func snapshotConfig(config *artifact.Config) (*artifact.Config, error) { | ||
| snapshotURI, err := snapshotURI() | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to detect remote snapshot repo, proceeding with configured: %v", err) | ||
| } | ||
|
|
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| return &artifact.Config{ | ||
| OperatingSystem: config.OperatingSystem, | ||
| Architecture: config.Architecture, | ||
| BeatsSourceURI: snapshotURI, | ||
| TargetDirectory: config.TargetDirectory, | ||
| Timeout: config.Timeout, | ||
| PgpFile: config.PgpFile, | ||
| InstallPath: config.InstallPath, | ||
| DropPath: config.DropPath, | ||
| }, nil | ||
| } | ||
|
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| func snapshotURI() (string, error) { | ||
| artifactsURI := fmt.Sprintf("https://artifacts-api.elastic.co/v1/search/%s-SNAPSHOT/elastic-agent", release.Version()) | ||
| resp, err := gohttp.Get(artifactsURI) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| defer resp.Body.Close() | ||
|
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| body := struct { | ||
| Packages map[string]interface{} `json:"packages"` | ||
| }{} | ||
|
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| dec := json.NewDecoder(resp.Body) | ||
| if err := dec.Decode(&body); err != nil { | ||
| return "", err | ||
| } | ||
|
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| if len(body.Packages) == 0 { | ||
| return "", fmt.Errorf("no packages found in snapshot repo") | ||
| } | ||
|
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| for k, pkg := range body.Packages { | ||
| pkgMap, ok := pkg.(map[string]interface{}) | ||
| if !ok { | ||
| return "", fmt.Errorf("content of '%s' is not a map", k) | ||
| } | ||
|
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| uriVal, found := pkgMap["url"] | ||
| if !found { | ||
| return "", fmt.Errorf("item '%s' does not contain url", k) | ||
| } | ||
|
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| uri, ok := uriVal.(string) | ||
| if !ok { | ||
| return "", fmt.Errorf("uri is not a string") | ||
| } | ||
|
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| index := strings.Index(uri, "/elastic-agent/") | ||
| if index == -1 { | ||
| return "", fmt.Errorf("not an agent uri: '%s'", uri) | ||
| } | ||
|
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| return uri[:index], nil | ||
| } | ||
|
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| return "", fmt.Errorf("uri not detected") | ||
| } |
21 changes: 21 additions & 0 deletions
21
x-pack/elastic-agent/pkg/artifact/download/snapshot/verifier.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| // Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| // or more contributor license agreements. Licensed under the Elastic License; | ||
| // you may not use this file except in compliance with the Elastic License. | ||
|
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| package snapshot | ||
|
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| import ( | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact" | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact/download" | ||
| "github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact/download/http" | ||
| ) | ||
|
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| // NewVerifier creates a downloader which first checks local directory | ||
| // and then fallbacks to remote if configured. | ||
| func NewVerifier(config *artifact.Config, downloaders ...download.Downloader) (download.Verifier, error) { | ||
| cfg, err := snapshotConfig(config) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return http.NewVerifier(cfg) | ||
| } |