grafana/pkg/build/cmd/fetchimages.go
2023-01-30 15:53:38 +01:00

118 lines
2.9 KiB
Go

package main
import (
"fmt"
"log"
"os/exec"
"strings"
"github.com/urfave/cli/v2"
"github.com/grafana/grafana/pkg/build/config"
"github.com/grafana/grafana/pkg/build/docker"
"github.com/grafana/grafana/pkg/build/gcloud"
)
const (
alpine = "alpine"
ubuntu = "ubuntu"
)
func FetchImages(c *cli.Context) error {
if c.NArg() > 0 {
if err := cli.ShowSubcommandHelp(c); err != nil {
return cli.Exit(err.Error(), 1)
}
return cli.Exit("", 1)
}
metadata, err := config.GenerateMetadata(c)
if err != nil {
return err
}
buildConfig, err := config.GetBuildConfig(metadata.ReleaseMode.Mode)
if err != nil {
return err
}
cfg := docker.Config{
Archs: buildConfig.Docker.Architectures,
Distribution: buildConfig.Docker.Distribution,
Bucket: buildConfig.Docker.PrereleaseBucket,
Edition: c.String("edition"),
Tag: metadata.GrafanaVersion,
}
edition := fmt.Sprintf("-%s", cfg.Edition)
err = gcloud.ActivateServiceAccount()
if err != nil {
return err
}
var basesStr []string
for _, base := range cfg.Distribution {
switch base {
case alpine:
basesStr = append(basesStr, "")
case ubuntu:
basesStr = append(basesStr, "-ubuntu")
default:
return fmt.Errorf("unrecognized base %q", base)
}
}
err = downloadFromGCS(cfg, basesStr, edition)
if err != nil {
return err
}
err = loadImages(cfg, basesStr, edition)
if err != nil {
return err
}
return nil
}
func loadImages(cfg docker.Config, basesStr []string, edition string) error {
log.Println("Loading fetched image files to local docker registry...")
log.Printf("Number of images to be loaded: %d\n", len(basesStr)*len(cfg.Archs))
for _, base := range basesStr {
for _, arch := range cfg.Archs {
imageFilename := fmt.Sprintf("grafana%s-%s%s-%s.img", edition, cfg.Tag, base, arch)
log.Printf("image file name: %s\n", imageFilename)
//nolint:gosec
cmd := exec.Command("docker", "load", "-i", imageFilename)
cmd.Dir = "."
out, err := cmd.CombinedOutput()
if err != nil {
log.Printf("out: %s\n", out)
return fmt.Errorf("error loading image: %q", err)
}
log.Printf("Successfully loaded %s!\n %s\n", fmt.Sprintf("grafana%s-%s%s-%s", edition, cfg.Tag, base, arch), out)
}
}
log.Println("Images successfully loaded!")
return nil
}
func downloadFromGCS(cfg docker.Config, basesStr []string, edition string) error {
log.Printf("Downloading Docker images from GCS bucket: %s\n", cfg.Bucket)
for _, base := range basesStr {
for _, arch := range cfg.Archs {
src := fmt.Sprintf("gs://%s/%s/grafana%s-%s%s-%s.img", cfg.Bucket, cfg.Tag, edition, cfg.Tag, base, arch)
args := strings.Split(fmt.Sprintf("-m cp -r %s .", src), " ")
//nolint:gosec
cmd := exec.Command("gsutil", args...)
out, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("failed to download: %w\n%s", err, out)
}
}
}
log.Printf("Successfully fetched image files from %s bucket!\n", cfg.Bucket)
return nil
}