drone-docker-buildx/cmd/drone-docker-gcr/main.go
Tony Li d097ea0a7b Change possible password fields
GOOGLE_APPLICATION_CREDENTIALS "should point to a file that defines the credentials", and should not be the contents of the credentials to follow Google's convention.

See https://developers.google.com/identity/protocols/application-default-credentials#howtheywork.
2017-08-29 16:52:33 -04:00

68 lines
1.2 KiB
Go

package main
import (
"encoding/base64"
"os"
"os/exec"
"path"
"strings"
)
// gcr default username
const username = "_json_key"
func main() {
var (
repo = getenv("PLUGIN_REPO")
registry = getenv("PLUGIN_REGISTRY")
password = getenv(
"PLUGIN_JSON_KEY",
"GCR_JSON_KEY",
"GOOGLE_CREDENTIALS",
"TOKEN",
)
)
// decode the token if base64 encoded
decoded, err := base64.StdEncoding.DecodeString(password)
if err == nil {
password = string(decoded)
}
// default registry value
if registry == "" {
registry = "gcr.io"
}
// must use the fully qualified repo name. If the
// repo name does not have the registry prefix we
// should prepend.
if !strings.HasPrefix(repo, registry) {
repo = path.Join(registry, repo)
}
os.Setenv("PLUGIN_REPO", repo)
os.Setenv("PLUGIN_REGISTRY", registry)
os.Setenv("DOCKER_USERNAME", username)
os.Setenv("DOCKER_PASSWORD", password)
// invoke the base docker plugin binary
cmd := exec.Command("drone-docker")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
os.Exit(1)
}
}
func getenv(key ...string) (s string) {
for _, k := range key {
s = os.Getenv(k)
if s != "" {
return
}
}
return
}