如何在Docker PHP容器中非dockerfile解决event扩展加载失败的问题？

Question

在乌班图的服务器里面，在docker容器里面安装扩展，非执行dockerfile，然后执行步骤为

1. docker-php-ext-install pdo_mysql opcache sockets
    docker-php-ext-enable sockets
    pecl install event
    docker-php-ext-enable event

2.执行最后一步也出现了

Warning: PHP Startup: Unable to load dynamic library 'event' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event: cannot open shared object file: No such file or directory), /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so: undefined symbol: socket_ce)) in Unknown on line 0

3.网上说event插件需要最后安装，我也是最后安装的，但是永远都会出现这个问题，
后面又在AI上面看到了这一步

echo "extension=event.so" >> /usr/local/etc/php/conf.d/docker-php-ext-event.ini
echo "extension=sockets.so" >> /usr/local/etc/php/conf.d/docker-php-ext-sockets.ini

加入后，还是一样的

Warning: PHP Startup: Unable to load dynamic library 'event' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event: cannot open shared object file: No such file or directory), /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so: undefined symbol: socket_ce)) in Unknown on line 0
Warning: PHP Startup: Unable to load dynamic library 'event.so' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so: undefined symbol: socket_ce), /usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so.so (/usr/local/lib/php/extensions/no-debug-non-zts-20200930/event.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0

Warning: Module "sockets" is already loaded in Unknown on line 0

这个需要怎么去解决呢

参考过https://github.com/docker-library/php/issues/857的安装流程，

Answer 1

你贴的那个 Issuse 里面，下面的那个解决方案是可以的呀，在 docker-php-ext-enable 的时候，指定一下 --ini-name 参数，利用命名规则，让 event 在 sockets 后面启用就好了。

# 如果现在已经手动启用过，就删除掉这个配置
rm /usr/local/etc/php/conf.d/docker-php-ext-event.ini
docker-php-ext-enable --ini-name z999-docker-php-ext-event.ini event

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