// Licensed to Apache Software Foundation (ASF) under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Apache Software Foundation (ASF) licenses this file to you 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 util

import (
	"context"
	"time"

	"github.com/docker/docker/client"

	"github.com/apache/skywalking-infra-e2e/internal/logger"
)

// CheckDockerDaemon checks if docker daemon is running.
func CheckDockerDaemon() error {
	logger.Log.Debug("checking docker daemon")
	cli, err := client.NewClientWithOpts(client.FromEnv)
	if err == nil {
		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
		defer cancel()

		_, err = cli.Ping(ctx)
	}

	if err != nil {
		return err
	}
	logger.Log.Debug("docker daemon is running normally")
	return nil
}
