141 lines
3.0 KiB
Go
141 lines
3.0 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
|
|
"github.com/joho/godotenv"
|
|
"github.com/pkg/errors"
|
|
"github.com/sirupsen/logrus"
|
|
"github.com/urfave/cli"
|
|
|
|
kaniko "github.com/drone/drone-kaniko"
|
|
)
|
|
|
|
const (
|
|
// GCR JSON key file path
|
|
gcrKeyPath string = "/kaniko/config.json"
|
|
gcrEnvVariable string = "GOOGLE_APPLICATION_CREDENTIALS"
|
|
)
|
|
|
|
var (
|
|
version = "unknown"
|
|
)
|
|
|
|
func main() {
|
|
// Load env-file if it exists first
|
|
if env := os.Getenv("PLUGIN_ENV_FILE"); env != "" {
|
|
godotenv.Load(env)
|
|
}
|
|
|
|
app := cli.NewApp()
|
|
app.Name = "kaniko gcr plugin"
|
|
app.Usage = "kaniko gcr plugin"
|
|
app.Action = run
|
|
app.Version = version
|
|
app.Flags = []cli.Flag{
|
|
cli.StringFlag{
|
|
Name: "dockerfile",
|
|
Usage: "build dockerfile",
|
|
Value: "Dockerfile",
|
|
EnvVar: "PLUGIN_DOCKERFILE",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "context",
|
|
Usage: "build context",
|
|
Value: ".",
|
|
EnvVar: "PLUGIN_CONTEXT",
|
|
},
|
|
cli.StringSliceFlag{
|
|
Name: "tags",
|
|
Usage: "build tags",
|
|
Value: &cli.StringSlice{"latest"},
|
|
EnvVar: "PLUGIN_TAGS",
|
|
FilePath: ".tags",
|
|
},
|
|
cli.StringSliceFlag{
|
|
Name: "args",
|
|
Usage: "build args",
|
|
EnvVar: "PLUGIN_BUILD_ARGS",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "target",
|
|
Usage: "build target",
|
|
EnvVar: "PLUGIN_TARGET",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "repo",
|
|
Usage: "gcr repository",
|
|
EnvVar: "PLUGIN_REPO",
|
|
},
|
|
cli.StringSliceFlag{
|
|
Name: "custom-labels",
|
|
Usage: "additional k=v labels",
|
|
EnvVar: "PLUGIN_CUSTOM_LABELS",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "registry",
|
|
Usage: "gcr registry",
|
|
Value: "gcr.io",
|
|
EnvVar: "PLUGIN_REGISTRY",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "json-key",
|
|
Usage: "docker username",
|
|
EnvVar: "PLUGIN_JSON_KEY",
|
|
},
|
|
cli.StringFlag{
|
|
Name: "snapshot-mode",
|
|
Usage: "Specify one of full, redo or time as snapshot mode",
|
|
EnvVar: "PLUGIN_SNAPSHOT_MODE",
|
|
},
|
|
}
|
|
|
|
if err := app.Run(os.Args); err != nil {
|
|
logrus.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func run(c *cli.Context) error {
|
|
err := setupGCRAuth(c.String("json-key"))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if c.String("repo") == "" {
|
|
return fmt.Errorf("repo must be specified")
|
|
}
|
|
|
|
plugin := kaniko.Plugin{
|
|
Build: kaniko.Build{
|
|
Dockerfile: c.String("dockerfile"),
|
|
Context: c.String("context"),
|
|
Tags: c.StringSlice("tags"),
|
|
Args: c.StringSlice("args"),
|
|
Target: c.String("target"),
|
|
Repo: fmt.Sprintf("%s/%s", c.String("registry"), c.String("repo")),
|
|
Labels: c.StringSlice("custom-labels"),
|
|
SnapshotMode: c.String("snapshot-mode"),
|
|
},
|
|
}
|
|
return plugin.Exec()
|
|
}
|
|
|
|
func setupGCRAuth(jsonKey string) error {
|
|
if jsonKey == "" {
|
|
return fmt.Errorf("GCR JSON key must be specified")
|
|
}
|
|
|
|
err := ioutil.WriteFile(gcrKeyPath, []byte(jsonKey), 0644)
|
|
if err != nil {
|
|
return errors.Wrap(err, "failed to write GCR JSON key")
|
|
}
|
|
|
|
err = os.Setenv(gcrEnvVariable, gcrKeyPath)
|
|
if err != nil {
|
|
return errors.Wrap(err, fmt.Sprintf("failed to set %s environment variable", gcrEnvVariable))
|
|
}
|
|
return nil
|
|
}
|