在 platform.sh 上使用 SncRedisBundle
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【中文标题】在 platform.sh 上使用 SncRedisBundle【英文标题】:using SncRedisBundle on platform.sh 【发布时间】:2017-05-26 09:18:19 【问题描述】:我正在尝试让我的应用程序由 platform.sh 托管,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 :', $relationships);
# Store session into /tmp.
ini_set('session.save_path', '/tmp/sessions');
当我推送到 platform.sh 时,他们的构建过程包括对 composer update 的调用,其结束如下:
生成优化的自动加载文件 > Incenteev\ParameterHandler\ScriptHandler::buildParameters > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache 脚本 Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache 处理以异常终止的 symfony-scripts 事件
[运行时异常] 执行“'cache:clear --no-warmup'”命令时出错: 字符串(17)“$关系:” 布尔(假) 空
[Predis\Connection\ConnectionException] php_network_getaddresses:getaddrinfo 失败:名称或服务未知 [tcp://localhost&database=4:6379]
.
我联系了他们的支持团队,他们告诉我:
嗨,
我想知道您是否想在 PLATFORM_RELATIONSHIPS 构建阶段?
这不可用,因为构建与环境无关。
如果需要连接DB/Redis/其他服务,请在 部署阶段(即部署 Hook)。
编辑:支持人员回答我说问题出在 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"
以及 "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets"
导致 Symfony 清除缓存,这太快了(在构建阶段,platform.sh 不提供链接的 redis 所需的环境和mysql 来炒锅...)
我不知道如何纠正这个问题,platform.sh 想让我修改 composer.json 文件,但我觉得这很奇怪而且很危险。你会怎么做?
【问题讨论】:
【参考方案1】:在你的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']);
【讨论】:
在缓存:清除和资产:安装上,调用redis服务器(由predis调用,由sncredis调用,由...调用我不知道事件监听也许),但你的方式似乎不错。我将 anwser 标记为已接受,但由于我们从 platform.sh 移至 aws,因此无法对其进行测试。以上是关于在 platform.sh 上使用 SncRedisBundle的主要内容,如果未能解决你的问题,请参考以下文章
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