无法更新 Docker 容器中的 php.ini 文件

Question

我正在尝试使用 Nginx 和 PHP7 在 Docker 上设置 Magento2。

我添加了 PHP7 Docker image 推荐的自定义 php.ini 文件。我可以从 phpinfo.php 看到它正在加载我的 php.ini 文件，但我的更新都没有。

它应该是：

 memory_limit = 2G
max_execution_time = 800

我检查了 PHP 容器，我可以看到 php.ini 文件的设置正确，或者我认为是这样吗？

 $ docker exec -it mymagento2docker_php_1 /bin/bash
# cat /usr/local/etc/php/php.ini
; This file is created automatically by the docker build

memory_limit = 2G
max_execution_time = 800

我究竟做错了什么？以下是一些更详细的信息，在此先感谢！

---

码头工人项目

.
├── docker-compose.yml
├── index.php
├── magento2
│   ├── [DIRECTORIES & FILES OMMITED]
│
├── nginx
│   ├── Dockerfile
│   ├── default.conf
│   └── nginx.conf
├── output.txt
├── php
    ├── Dockerfile
    └── config
        └── php.ini

---

码头工人-compose.yml

 nginx:
    build: ./nginx/
    ports:
        - 80:80
    links:
        - php
    volumes_from:
        - app

php:
    build: ./php/
    expose:
        - 9000
    links:
        - mysql
    volumes_from:
        - app

app:
    image: php:7.0-fpm
    volumes:
        - ./magento2:/var/www/html
    command: "true"

mysql:
    image: mysql:latest
    volumes_from:
        - data
    ports:
        - "3306:3306"
    environment:
        MYSQL_ROOT_PASSWORD: mage2
        MYSQL_DATABASE: mage2
        MYSQL_USER: mage2
        MYSQL_PASSWORD: mage2

data:
    image: mysql:latest
    volumes:
        - /var/lib/mysql
    command: "true"

phpmyadmin:
    image: phpmyadmin/phpmyadmin
    ports:
        - 8080:80
    links:
        - mysql
    environment:
        PMA_HOST: mysql

---

php/Dockerfile

 FROM php:7.0-fpm

# Install dependencies
RUN apt-get update \
  && apt-get install -y \
    cron \
    libfreetype6-dev \
    libicu-dev \
    libjpeg62-turbo-dev \
    libmcrypt-dev \
    libpng12-dev \
    libxslt1-dev

# Configure the gd library
RUN docker-php-ext-configure \
  gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/

# Install required PHP extensions
RUN docker-php-ext-install \
  gd \
  intl \
  mbstring \
  mcrypt \
  pdo_mysql \
  xsl \
  zip \
  soap

# Install the 2.4 version of xdebug that's compatible with php7
RUN pecl install -o -f xdebug-2.4.0

COPY config/php.ini /usr/local/etc/php/

---

 ## php/config/php.ini ##
; This file is created automatically by the docker build

memory_limit = 2G
max_execution_time = 800

更新

我试过用下面的方法重新启动 nginx，但它没有用。

 $ docker exec -it mymagento2docker_php_1 /bin/bash
# /etc/init.d/nginx restart
bash: /etc/init.d/nginx: No such file or directory
# service nginx restart
nginx: unrecognized service
# nginx -s reload
bash: nginx: command not found
# exit
$ docker restart mymagento2docker_nginx_1
mymagento2docker_nginx_1

$ docker exec -it mymagento2docker_nginx_1 /bin/bash
# /etc/init.d/nginx restart
Restarting nginx: nginxross in ~/my-magento2-docker
$ docker-compose ps
            Name                          Command             State            Ports
---------------------------------------------------------------------------------------------
mymagento2docker_app_1          true                          Exit 0
mymagento2docker_data_1         docker-entrypoint.sh true     Exit 0
mymagento2docker_mysql_1        docker-entrypoint.sh mysqld   Up       0.0.0.0:3306->3306/tcp
mymagento2docker_nginx_1        nginx -g daemon off;          Exit 0
mymagento2docker_php_1          php-fpm                       Up       9000/tcp
mymagento2docker_phpmyadmin_1   /run.sh phpmyadmin            Up       0.0.0.0:8080->80/tcp
ross in ~/my-magento2-docker
$ docker-compose up -d
Starting mymagento2docker_app_1
Starting mymagento2docker_data_1
mymagento2docker_mysql_1 is up-to-date
mymagento2docker_phpmyadmin_1 is up-to-date
mymagento2docker_php_1 is up-to-date
Starting mymagento2docker_nginx_1
ross in ~/my-magento2-docker
$ docker exec -it mymagento2docker_nginx_1 /bin/bash
# service nginx restart
Restarting nginx: nginxross in ~/my-magento2-docker
$ docker-compose up -d
Starting mymagento2docker_app_1
Starting mymagento2docker_data_1
mymagento2docker_mysql_1 is up-to-date
mymagento2docker_phpmyadmin_1 is up-to-date
mymagento2docker_php_1 is up-to-date
Starting mymagento2docker_nginx_1
ross in ~/my-magento2-docker
$ docker exec -it mymagento2docker_nginx_1 /bin/bash
# nginx -s reload
2016/10/05 14:07:43 [notice] 12#12: signal process started
#

原文由 Holly 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

这就是发生的事情： - 如果您将 php.ini 从主机映射到容器，请确保在启动容器之前主机上必须存在该文件 (php.ini)。否则，容器将无法启动 - 请检查 docker 是否能够读取您的 php.ini 文件（检查权限，有时 docker 以不同的用户身份运行并且无法访问属于 root 的主机文件） - 每次更新 php .ini，你必须重启php-fpm（进入容器并重启php-fpm测试，不要重建容器），并清除缓存（如果你启用了opcache）

原文由 Dylan B 发布，翻译遵循 CC BY-SA 4.0 许可协议