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", "GOOGLE_APPLICATION_CREDENTIALS", ) ) // 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 }