在 platform.sh 上使用 SncRedisBundle

Question

我正在尝试让 platform.sh 托管我的应用程序，我的问题是我使用 SncRedisBundle，配置如下：

#config.yml

imports:
    - { resource: platformSh/parameters_platform.php } #platform.sh cloud provider configuration's

snc_redis:
    clients:
        doctrine:
            type: predis
            alias: doctrine
            dsn: "%redis_url%&database=4"
    doctrine:
        metadata_cache:
            client: doctrine
            entity_manager: default          # the name of your entity_manager connection
            document_manager: default        # the name of your document_manager connection
        result_cache:
            client: doctrine
            entity_manager: [default]  # you may specify multiple entity_managers
        query_cache:
            client: doctrine
            entity_manager: default
        second_level_cache:
            client: doctrine
            entity_manager: default

#platformSh/parameters_platform.php
$relationships = getenv("PLATFORM_RELATIONSHIPS");

var_dump('$relationships : ', $relationships, @$_ENV['PLATFORM_RELATIONSHIPS']);

if (!$relationships) {
    return;
}

$relationships = json_decode(base64_decode($relationships), true);

foreach ($relationships['database'] as $endpoint) {
    if (empty($endpoint['query']['is_master'])) {
        continue;
    }

    $container->setParameter('database_driver', 'pdo_' . $endpoint['scheme']);
    $container->setParameter('database_host', $endpoint['host']);
    $container->setParameter('database_port', $endpoint['port']);
    $container->setParameter('database_name', $endpoint['path']);
    $container->setParameter('database_user', $endpoint['username']);
    $container->setParameter('database_password', $endpoint['password']);
    $container->setParameter('database_path', '');
}

if (!empty($relationships['redis'])) {
    $redisConstructedDsn = 'redis://'.$relationships['redis'][0]['host'].$relationships['redis'][0]['port'].'?password=';
    $container->setParameter('redis_url', $redisConstructedDsn);

    var_dump('$redisConstructedDsn : ', $redisConstructedDsn);
} else {
    var_dump('$relationships :', $relationships);
}


# Store session into /tmp.
ini_set('session.save_path', '/tmp/sessions');

当我推送到 platform.sh 时，他们的构建过程包括对 composer update 的调用，其结束如下：

Generating optimized autoload files > Incenteev\ParameterHandler\ScriptHandler::buildParameters > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the symfony-scripts event terminated with an exception

[RuntimeException]
An error occurred when executing the "'cache:clear --no-warmup'" command:
string(17) "$relationships : "
bool(false)
NULL

[Predis\Connection\ConnectionException]
php_network_getaddresses: getaddrinfo failed: Name or service not known [tcp://localhost&database=4:6379]
        .

我联系了他们的支持团队，他们告诉我：

Hi,

May I know if you're trying to get PLATFORM_RELATIONSHIPS during the build phase?

That's not available since the build is environment agnostic.

If you need to connect DB / Redis / other services, please do so in deploy phase (i.e. Deploy Hook).

编辑：支持人员回答我问题出在这个 composer.json 部分：

"scripts": { 
  "symfony-scripts": [ 
    "Incenteev\ParameterHandler\ScriptHandler::buildParameters", 
    "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap", 
    "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache", 
    "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installAssets", 
    "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installRequirementsFile", 
    "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::prepareDeploymentTarget" 
], 
"post-install-cmd": [ 
  "@symfony-scripts" 
], 
"post-update-cmd": [ 
  "@symfony-scripts" 
], 
"compile": [ 
  "app/console assetic:dump" 
] 
},

例如，"Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache" 和 "Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::installAssets" 都导致 Symfony 清除缓存，这太快了（在构建阶段 platform.sh 不提供env. 链接的 redis 和 MySQL 工作所必需的...)

我不知道如何纠正这个问题，platform.sh 想让我修改 composer.json 文件，但我觉得它很奇怪而且很危险。你会怎么做？

Answer 1

在您的 platform.app.yaml 中，设置

flavor: 'none'

然后用假值创建一个 parameters.dist.yml（在这个文件中添加 redis_url: xxx）。这些假值将在您的 parameters_platform.php

中被覆盖

这里是我的platform.app.yaml的钩子代码：

hooks:
# Build script; can modify the filesystem, but cannot access services
build: |
    set -x -e

    # remove the development front-controller if present
    (>&2 rm web/app_dev.php || true)

    SYMFONY_ENV=prod composer install --prefer-dist --optimize-autoloader --classmap-authoritative --no-progress --no-ansi --no-interaction --no-dev
    (>&2 SYMFONY_ENV=prod app/console cache:clear --no-warmup)
    (>&2 SYMFONY_ENV=prod app/console cache:warmup)
    # Keep the cache in a persistant directory
    # If your cache can be readonly, you can skip this step
    (>&2 mkdir -p tmp/cache && mv app/cache/prod tmp/cache/ && mv app/bootstrap.php.cache tmp/bootstrap.php.cache)
    yarn
    gulp

# Deploy script, can access services, but the filesystem is read-only
deploy: |
    set -x -e

    # "install" cache
    # If your cache can be readonly, you can skip these steps
    rm -rf app/cache/prod
    (>&2 SYMFONY_ENV=prod app/console --env=prod cache:clear)
    (>&2 SYMFONY_ENV=prod app/console --env=prod doctrine:schema:update --dump-sql --force)
    cp -Rp tmp/bootstrap.php.cache app/bootstrap.php.cache
    cp -Rp tmp/cache/prod app/cache/

我们项目的platform.php：

if (empty($relationships['redis'])) {
    return;
}

$redis = array_shift($relationships['redis']);

$container->setParameter('redis_host', $redis['host']);
$container->setParameter('redis_port', $redis['port']);

在 platform.sh 上使用 SncRedisBundle

using SncRedisBundle on platform.sh

php

cloud-hosting

redis

symfony

composer-php

编辑：支持人员回答我问题出在这个 composer.json 部分：