Nacos 解決 laravel 多環境下配置切換

未定義發表於2021-02-19

前言

對於應用程式執行的環境來說,不同的環境有不同的配置通常是很有用的。例如,你可能希望在本地使用的快取驅動不同於生產伺服器所使用的快取驅動。

痛點

  1. .env 配置不能區分多環境(開發,測試,生產)
  2. .env 配置共享太麻煩(團隊區域網環境)
  3. 配置不能實時管理,增刪改配置
  4. 自動化部署配置 .env 檔案過於繁瑣

Nacos 簡介

Nacos 是阿里巴巴最新開源的專案,核心定位是 “一個更易於幫助構建雲原生應用的動態服務發現、配置和服務管理平臺”,專案地址:nacos.io/zh-cn/

應用

這裡主要使用了 Nacos 的配置管理,並沒有使用到動態服務等功能。原理也很簡單,透過介面直接修改 .env 檔案。Nacos 服務可以直接使用使用阿里雲提供的 應用配置管理,無須安裝。連結如下: acmnext.console.aliyun.com/

程式碼

<?php

namespace App\Console\Commands;

use GuzzleHttp\Client;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Artisan;
use Illuminate\Support\Facades\Validator;

class NacosTools extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'nacos {action?}';

    private $accessKey;
    private $secretKey;
    private $endpoint = 'acm.aliyun.com';
    private $namespace;
    private $dataId;
    private $group;
    private $port = 8080;
    private $client;

    private $serverUrl;

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Nacos 管理工具';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     * @throws \Exception
     */
    public function handle()
    {
        $this->accessKey = env('NACOS_ACCESS_KEY');
        $this->secretKey = env('NACOS_SECRET_KEY');
        $this->endpoint = env('NACOS_ENDPOINT');
        $this->namespace = env('NACOS_NAMESPACE');
        $this->port = env('NACOS_PORT', $this->port);
        $this->dataId = env('NACOS_DATA_ID');
        $this->group = env('NACOS_GROUP');

        if (!$this->validate()) {
            $this->error('請檢查配置引數');

            return;
        }

        $this->client = new Client(['verify' => false]);

        $this->info('Nacos 配置工具');

        $actions = [
            '獲取配置',
            '釋出配置',
            '刪除配置',
        ];

        if (is_null($this->argument('action'))) {
            $action = $this->choice('請選擇操作',
                $actions,
                $actions[0]);
        } else {
            if (in_array($this->argument('action'), array_keys($actions))) {
                $action = $actions[$this->argument('action')];
            } else {
                $action = $this->choice('請選擇操作',
                    $actions,
                    $actions[0]);
            }
        }

        $this->do($action);
    }

    public function do($action = '獲取配置')
    {
        switch ($action) {
            default:
            case '獲取配置':
                $config = $this->getConfig();

                if ($config) {
                    file_put_contents('.env', $config);
                    $this->info('獲取配置成功');
                } else {
                    $this->error('獲取配置失敗');
                }

                break;
            case '釋出配置':
                if ($this->publishConfig()) {
                    $this->info('釋出配置成功');
                } else {
                    $this->error('釋出配置失敗');
                }

                break;

            case '刪除配置':
                if ($this->removeConfig()) {
                    $this->info('刪除配置成功');
                } else {
                    $this->error('刪除配置失敗');
                }

                break;
        }
    }

    /**
     * 驗證配置引數
     *
     * Date: 2020/6/10
     * @return bool
     */
    private function validate()
    {
        $data = [
            'accessKey' => $this->accessKey,
            'secretKey' => $this->secretKey,
            'endpoint'  => $this->endpoint,
            'namespace' => $this->namespace,
            'dataId'    => $this->dataId,
            'group'     => $this->group,
        ];

        $rules = [
            'accessKey' => 'required',
            'secretKey' => 'required',
            'endpoint'  => 'required',
            'namespace' => 'required',
            'dataId'    => 'required',
            'group'     => 'required',
        ];

        $messages = [
            'accessKey.required' => '請填寫`.env`配置 NACOS_ACCESS_KEY',
            'secretKey.required' => '請填寫`.env`配置 NACOS_SECRET_KEY',
            'endpoint.required'  => '請填寫`.env`配置 NACOS_ENDPOINT',
            'namespace.required' => '請填寫`.env`配置 NACOS_NAMESPACE',
            'dataId.required'    => '請填寫`.env`配置 NACOS_DATA_ID',
            'group.required'     => '請填寫`.env`配置 NACOS_GROUP',
        ];

        $validator = Validator::make($data, $rules, $messages);

        if ($validator->fails()) {
            foreach ($validator->getMessageBag()->toArray() as $item) {
                foreach ($item as $value) {
                    $this->error($value);
                }
            }

            return false;
        }

        return true;
    }

    /**
     * 獲取配置
     *
     * Date: 2020/6/10
     * @return bool
     */
    private function getConfig()
    {
        $acmHost = str_replace(['host', 'port'], [$this->getServer(), $this->port],
            'http://host:port/diamond-server/config.co');

        $query = [
            'dataId' => urlencode($this->dataId),
            'group'  => urlencode($this->group),
            'tenant' => urlencode($this->namespace),
        ];

        $headers = $this->getHeaders();

        $response = $this->client->get($acmHost, [
            'headers' => $headers,
            'query'   => $query,
        ]);

        if ($response->getReasonPhrase() == 'OK') {
            return $response->getBody()->getContents();
        } else {
            return false;
        }
    }

    /**
     * 釋出配置
     *
     * Date: 2020/6/10
     * @return bool
     */
    public function publishConfig()
    {
        $acmHost = str_replace(
            ['host', 'port'],
            [$this->getServer(), $this->port],
            'http://host:port/diamond-server/basestone.do?method=syncUpdateAll');

        $headers = $this->getHeaders();

        $formParams = [
            'dataId'  => urlencode($this->dataId),
            'group'   => urlencode($this->group),
            'tenant'  => urlencode($this->namespace),
            'content' => file_get_contents('.env'),
        ];

        $response = $this->client->post($acmHost, [
            'headers'     => $headers,
            'form_params' => $formParams,
        ]);

        $result = json_decode($response->getBody()->getContents(), 1);

        return $result['message'] == 'OK';
    }

    public function removeConfig()
    {
        $acmHost = str_replace(['host', 'port'], [$this->getServer(), $this->port],
            'http://host:port/diamond-server//datum.do?method=deleteAllDatums');

        $headers = $this->getHeaders();

        $formParams = [
            'dataId' => urlencode($this->dataId),
            'group'  => urlencode($this->group),
            'tenant' => urlencode($this->namespace),
        ];

        $response = $this->client->post($acmHost, [
            'headers'     => $headers,
            'form_params' => $formParams,
        ]);

        $result = json_decode($response->getBody()->getContents(), 1);

        return $result['message'] == 'OK';
    }

    /**
     * 獲取配置伺服器地址
     *
     * Date: 2020/6/10
     * @return string
     */
    private function getServer()
    {
        if ($this->serverUrl) {
            return $this->serverUrl;
        }

        $serverHost = str_replace(
            ['host', 'port'],
            [$this->endpoint, $this->port],
            'http://host:port/diamond-server/diamond');

        $response = $this->client->get($serverHost);

        return $this->serverUrl = rtrim($response->getBody()->getContents(), PHP_EOL);
    }

    /**
     * 獲取請求頭
     *
     * Date: 2020/6/10
     * @return array
     */
    private function getHeaders()
    {
        $headers = [
            'Diamond-Client-AppName' => 'ACM-SDK-PHP',
            'Client-Version'         => '0.0.1',
            'Content-Type'           => 'application/x-www-form-urlencoded; charset=utf-8',
            'exConfigInfo'           => 'true',
            'Spas-AccessKey'         => $this->accessKey,
            'timeStamp'              => round(microtime(true) * 1000),
        ];

        $headers['Spas-Signature'] = $this->getSign($headers['timeStamp']);

        return $headers;
    }

    /**
     * 獲取簽名
     *
     * @param $timeStamp
     * Date: 2020/6/10
     * @return string
     */
    private function getSign($timeStamp)
    {
        $signStr = $this->namespace.'+';

        if (is_string($this->group)) {
            $signStr .= $this->group."+";
        }

        $signStr = $signStr.$timeStamp;

        return base64_encode(hash_hmac(
            'sha1',
            $signStr,
            $this->secretKey,
            true
        ));
    }
}

使用示例

  1. 註冊賬號,開通服務這些就不說了
  2. .env 新增配置項 NACOS_ACCESS_KEY NACOS_SECRET_KEY
  3. php artisan nacos 0 獲取配置
  4. php artisan nacos 1 釋出配置
  5. php artisan nacos 2 刪除配置

配置項說明

NACOS_ENDPOINT= #nacos節點 如使用阿里雲服務 即:acm.aliyun.com
NACOS_DATA_ID= #專案ID 可以填專案名
NACOS_GROUP= #分組ID 這裡可以用於區分環境 建議 local production test 等值
NACOS_NAMESPACE= # 名稱空間 建議用來區分伺服器 server-A server-B
NACOS_ACCESS_KEY= #阿里雲access_key 建議使用子賬號access_key
NACOS_SECRET_KEY= #阿里雲secret_key 建議使用子賬號secret_key

總結

使用 nacos 後,再也不用擔心 .env.example 忘記加配置項,共享配置也不是件麻煩事了,自動部署也不需要頻繁的改動配置了。

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