php - 没有来自 docker 容器的 php-fpm 错误日志

Question

在 docker-compose 中使用 apache + php-fpm 容器，我无法让 php-fpm 容器显示任何错误。

docker-compose.yml

version: '3'

services:
  php:
    build:
      context: ./php
    ports:
      - 9000:9000
    volumes:
      - ./code:/code
      - ./php/www.conf:/usr/local/etc/php-fpm.d/www.conf
    environment:
      ENVIRONMENT: local
  web:
    image: httpd:2.4
    depends_on:
      - php
    ports:
      - 80:80
    volumes:
      - ./code:/usr/local/apache2/htdocs
      - ./web/httpd.conf:/usr/local/apache2/conf/httpd.conf
    depends_on:
      - php

php-fpm Dockerfile:

FROM php:5.6-fpm 

php-fpm www.conf:

[global]
error_log = /proc/self/fd/2

[www]

user = www-data
group = www-data

listen = nginx:9000

pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3

; Logging

; if we send this to /proc/self/fd/1, it never appears
access.log = /proc/self/fd/2

clear_env = no

; Ensure worker stdout and stderr are sent to the main error log.
catch_workers_output = yes

php_flag[display_errors] = on
php_admin_flag[log_errors] = on
;php_admin_value[error_log] = /var/log/fpm-php.www.log
php_admin_value[error_reporting] = E_ALL & ~E_NOTICE & ~E_WARNING & ~E_STRICT & ~E_DEPRECATED
php_admin_value[display_startup_errors] = on

docker-compose logs 只显示 php-fpm 访问日志，没有错误日志。

尝试了帖子中提出的所有解决方案作为可能的重复:PHP-FPM doesn't write to error log 它们都不适合我，请在下方查看我的评论。

Answer 1

在我的例子中，是 /usr/local/etc/php-fpm.d/docker.conf 引起了麻烦:

[global]
error_log = /proc/self/fd/2

; https://github.com/docker-library/php/pull/725#issuecomment-443540114
log_limit = 8192

[www]
; if we send this to /proc/self/fd/1, it never appears
access.log = /proc/self/fd/2

clear_env = no

; Ensure worker stdout and stderr are sent to the main error log.
catch_workers_output = yes
decorate_workers_output = no

error_log 指令的值 /proc/self/fd/2 导致日志被写入终端/控制台，其中 docker-compose up 正在运行。

我只需要在 /usr/local/etc/php-fpm.d/ 目录中创建一个自定义的全局 fpm 配置文件，并通过将其命名为 使其作为最后一个执行>zz-global.conf，因此它可以覆盖 docker.conf 值。然后我只需要将 error_log 的值设置为 php-fpm 容器中的自定义路径，例如:

[global]
error_log = /var/www/logs/php-fpm-error.log

就是这样。

也许值得一提:我的 php.ini(修改后的 php.ini-development)具有以下自定义错误记录相关值:

; https://stackoverflow.com/a/10546138/4721232
; Redirect worker stdout and stderr into main error log. If not set, stdout and
; stderr will be redirected to /dev/null according to FastCGI specs.
; Default Value: no
catch_workers_output = yes
php_admin_flag[log_errors] = on
php_admin_flag[display_errors] = on
php_admin_value[error_reporting] = E_ALL
php_admin_value[error_log] = /var/log/error.log
access.log = /var/www/logs/php-fpm-access.log