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feat(internal): Introduce 'metrics' command for instances
Signed-off-by: Cezar Craciunoiu <cezar.craciunoiu@unikraft.io>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // SPDX-License-Identifier: BSD-3-Clause | ||
| // Copyright (c) 2024, Unikraft GmbH and The KraftKit Authors. | ||
| // Licensed under the BSD-3-Clause License (the "License"). | ||
| // You may not use this file except in compliance with the License. | ||
|
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| package metrics | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
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| "github.com/MakeNowJust/heredoc" | ||
| "github.com/spf13/cobra" | ||
|
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| kraftcloud "sdk.kraft.cloud" | ||
|
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| "kraftkit.sh/cmdfactory" | ||
| "kraftkit.sh/config" | ||
| "kraftkit.sh/internal/cli/kraft/cloud/utils" | ||
| ) | ||
|
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| type MetricsOptions struct { | ||
| Auth *config.AuthConfig `noattribute:"true"` | ||
| Client kraftcloud.KraftCloud `noattribute:"true"` | ||
| Metro string `noattribute:"true"` | ||
| Token string `noattribute:"true"` | ||
| Output string `long:"output" short:"o" usage:"Set output format. Options: table,yaml,json,list"` | ||
| } | ||
|
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| func NewCmd() *cobra.Command { | ||
| cmd, err := cmdfactory.New(&MetricsOptions{}, cobra.Command{ | ||
| Short: "Return metrics for instances", | ||
| Use: "top [FLAGS] [UUID|NAME [UUID|NAME]...]", | ||
| Aliases: []string{"metrics", "metric", "m", "meter"}, | ||
| Args: cobra.ArbitraryArgs, | ||
| Example: heredoc.Doc(` | ||
| # Return metrics for all instances | ||
| $ kraft cloud instance top | ||
| # Return metrics for an instance by UUID | ||
| $ kraft cloud instance top fd1684ea-7970-4994-92d6-61dcc7905f2b | ||
| # Return metrics for an instance by name | ||
| $ kraft cloud instance top my-instance-431342 | ||
| `), | ||
| Annotations: map[string]string{ | ||
| cmdfactory.AnnotationHelpGroup: "kraftcloud-instance", | ||
| }, | ||
| }) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
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| return cmd | ||
| } | ||
|
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| func (opts *MetricsOptions) Pre(cmd *cobra.Command, _ []string) error { | ||
| err := utils.PopulateMetroToken(cmd, &opts.Metro, &opts.Token) | ||
| if err != nil { | ||
| return fmt.Errorf("could not populate metro and token: %w", err) | ||
| } | ||
|
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| if !utils.IsValidOutputFormat(opts.Output) { | ||
| return fmt.Errorf("invalid output format: %s", opts.Output) | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| func (opts *MetricsOptions) Run(ctx context.Context, args []string) error { | ||
| auth, err := config.GetKraftCloudAuthConfig(ctx, opts.Token) | ||
| if err != nil { | ||
| return fmt.Errorf("could not retrieve credentials: %w", err) | ||
| } | ||
|
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| client := kraftcloud.NewInstancesClient( | ||
| kraftcloud.WithToken(config.GetKraftCloudTokenAuthConfig(*auth)), | ||
| ) | ||
|
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| instances := args | ||
| if len(instances) == 0 { | ||
| resp, err := client.WithMetro(opts.Metro).List(ctx) | ||
| if err != nil { | ||
| return fmt.Errorf("could not list instances: %w", err) | ||
| } | ||
|
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| insts, err := resp.AllOrErr() | ||
| if err != nil { | ||
| return fmt.Errorf("could not list instances: %w", err) | ||
| } | ||
|
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| for _, inst := range insts { | ||
| instances = append(instances, inst.UUID) | ||
| } | ||
| } | ||
|
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| if len(instances) > 0 { | ||
| if opts.Output == "" && len(instances) > 1 { | ||
| opts.Output = "table" | ||
| } else if opts.Output == "" && len(instances) == 1 { | ||
| opts.Output = "list" | ||
| } | ||
|
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| resp, err := client.WithMetro(opts.Metro).Metrics(ctx, instances...) | ||
| if err != nil { | ||
| return fmt.Errorf("could not get instance %s: %w", instances, err) | ||
| } | ||
| return utils.PrintMetrics(ctx, opts.Output, *resp) | ||
| } | ||
|
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||
| return fmt.Errorf("no instances found") | ||
| } |
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