无法更新 Docker 容器中的 php.ini 文件

Question

I'm trying to set Magento2 on Docker with Nginx & PHP7.

I've added a custom php.ini file as recommended by the PHP7 Docker image . I can see from phpinfo.php that it's loading my php.ini file but none of my updates are there.

It should be:

memory_limit = 2G
max_execution_time = 800

I've checked the PHP container and I can see the php.ini file is there with the correct settings, or so I think?

$ 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

What am I doing wrong? Below are some more details, thanks in advance!

---

Docker Project

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

---

docker-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

UPDATE

I've tried restarting nginx with the below, but it did not work.

$ 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
# 

Answer 1

Add a volumes: section to your php service in the docker-compose.yml file, map a local directory with a custom.ini file to /usr/local/etc/php/conf.d , and restart your container. Whatever valid settings in that file will override those from the main php.ini file. (Incidentally you can do the same with MySQL but not with Nginx).

This works in my own project:

php: volumes: - ./localpath/custom.ini:/usr/local/etc/php/conf.d/custom.ini

Answer 2

i think you have to reload the nginx config. i dont know which OS your php container uses, but try inside of the container some of these:

# /etc/init.d/nginx restart

# service nginx restart

# nginx -s reload

my logical reason is, that you install php ( and start it at the same time ) and after all you copy the new config.

Answer 3

This is what happened : - If you map the php.ini from host to container, make sure that file (php.ini) must exist on host before you launch the container. Otherwise, the container will not start - Please check if docker was able to read your php.ini file (check permission, sometime docker is running as different user and can't access host file which belongs to root) - Every time you update php.ini, you must restart php-fpm (get inside the container and restart the php-fpm to test, do not rebuild container) , and clear cache (if you enable opcache)

Answer 4

If you are using something like wodby ( docker4php or docker4drupal ) or lando or trying to find an answer "why php.ini doesn't work" (like me), these tools are using their own way to pass configuration into php

https://github.com/wodby/php#php-and-php-fpm-configuration