Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

package docker

​

import (

    "encoding/json"

    "errors"

    "fmt"

​

    "git.zabbix.com/ap/plugin-support/zbxerr"

​

    "git.zabbix.com/ap/plugin-support/plugin"

)

​

const (

    pluginName    = "Docker"

    dockerVersion = "1.28"

)

​

const (

    pingFailed = 0

    pingOk     = 1

)

​

// Plugin inherits plugin.Base and store plugin-specific data.

type Plugin struct {

    plugin.Base

    options Options

    client  *client

}

​

var impl Plugin

​

// Export implements the Exporter interface.

func (p *Plugin) Export(key string, rawParams []string, _ plugin.ContextProvider) (interface{}, error) {

    var result []byte

​

    params, _, _, err := metrics[key].EvalParams(rawParams, nil)

    if err != nil {

        return nil, err

    }

​

    queryPath := metricsMeta[key].path

​

    switch key {

    case keyInfo:

        var data Info

​

        body, err := p.client.Query(queryPath)

        if err != nil {

            return nil, err

        }

​

        if err = json.Unmarshal(body, &data); err != nil {

            return nil, zbxerr.ErrorCannotUnmarshalJSON.Wrap(err)

        }

​

        result, err = json.Marshal(data)

        if err != nil {

            return nil, zbxerr.ErrorCannotMarshalJSON.Wrap(err)

        }

​

    case keyContainers:

        var data []Container

​

        body, err := p.client.Query(queryPath)

        if err != nil {

            return nil, err

        }

​

        if err = json.Unmarshal(body, &data); err != nil {

            return nil, zbxerr.ErrorCannotUnmarshalJSON.Wrap(err)

        }

​