// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package coreos

import (
	"io/ioutil"
	"strings"
)

func IsCoreOS() bool {
	b, err := ioutil.ReadFile("/usr/lib/os-release")
	if err != nil {
		return false
	}
	return strings.Contains(string(b), "ID=coreos")
}