/
apply.go
79 lines (62 loc) · 2.03 KB
/
apply.go
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package cmd
import (
"context"
"fmt"
"net/http"
"os"
"github.com/K-Phoen/grabana"
"github.com/K-Phoen/grabana/decoder"
"github.com/spf13/cobra"
)
type applyOpts struct {
inputYAML string
destinationFolder string
grafanaHost string
grafanaToken string
}
func Apply() *cobra.Command {
opts := applyOpts{}
cmd := &cobra.Command{
Use: "apply",
Short: "Apply a YAML dashboard",
RunE: func(cmd *cobra.Command, args []string) error {
return applyYAML(opts)
},
}
cmd.Flags().StringVarP(&opts.inputYAML, "input", "i", "", "YAML file used as input")
cmd.Flags().StringVarP(&opts.destinationFolder, "folder", "f", "", "Folder in which the dashboard will be created")
cmd.Flags().StringVarP(&opts.grafanaHost, "grafana", "g", "", "Grafana host. Example: http://grafana-host:3000")
cmd.Flags().StringVarP(&opts.grafanaToken, "token", "t", "", "Grafana API token")
_ = cmd.MarkFlagFilename("input", "yaml", "yml")
_ = cmd.MarkFlagRequired("input")
_ = cmd.MarkFlagRequired("folder")
_ = cmd.MarkFlagRequired("grafana")
return cmd
}
func applyYAML(opts applyOpts) error {
ctx := context.Background()
client := grabanaClient(opts)
file, err := os.Open(opts.inputYAML)
if err != nil {
return fmt.Errorf("could not open input file '%s': %w", opts.inputYAML, err)
}
dashboard, err := decoder.UnmarshalYAML(file)
if err != nil {
return fmt.Errorf("could not decode input file '%s': %w", opts.inputYAML, err)
}
folder, err := client.FindOrCreateFolder(ctx, opts.destinationFolder)
if err != nil {
return fmt.Errorf("could not find or create folder '%s': %w", opts.destinationFolder, err)
}
if _, err := client.UpsertDashboard(ctx, folder, dashboard); err != nil {
return fmt.Errorf("could not apply dashboard: %w", err)
}
return nil
}
func grabanaClient(opts applyOpts) *grabana.Client {
var clientOpts []grabana.Option
if len(opts.grafanaToken) != 0 {
clientOpts = append(clientOpts, grabana.WithAPIToken(opts.grafanaToken))
}
return grabana.NewClient(&http.Client{}, opts.grafanaHost, clientOpts...)
}