Docker: PhpMyAdmin has an upload limit of 2048KiB - php

Question

i have a docker-compose.yml that looks like this:
webserver:
build: ./_docker/php
ports:
- 80:80
links:
- mysql
volumes_from:
- app
mysql:
image: mysql:5.7
environment:
MYSQL_DATABASE: "${DB_NAME}"
MYSQL_USER: "${DB_USER}"
MYSQL_ROOT_PASSWORD: "${DB_ROOT_PW}"
MYSQL_PASSWORD: "${DB_PW}"
volumes:
- ./_docker/data/db:/docker-entrypoint-initdb.d
volumes_from:
- data
data:
image: mysql:5.7
volumes:
- /var/lib/mysql
command: "true"
phpmyadmin:
image: phpmyadmin/phpmyadmin
ports:
- 8080:80
links:
- mysql
environment:
PMA_HOST: mysql
app:
image: tianon/true
volumes:
- .:/var/www/public_html
Dockerfile looks like this:
FROM php:7.0-apache
#php:7.2.2-apache
#php:5.6.33-apache
COPY php.ini /usr/local/etc/php/
COPY 000-default.conf /etc/apache2/sites-available/
RUN a2enmod rewrite
RUN a2enmod expires
RUN a2enmod headers
RUN apt-get update
RUN apt-get install -y zlib1g-dev libxml2-dev libfreetype6-dev libjpeg62-turbo-dev libmcrypt-dev libpng12.0 imagemagick
RUN docker-php-ext-install mysqli zip soap
RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/
RUN docker-php-ext-install gd
# Install opcache
RUN docker-php-ext-install opcache
and the php ini like this:
max_input_vars = 1500
max_execution_time = 300
post_max_size=50M
upload_max_filesize=50M
when i start the container i have my webserver located on http://localhost.
i put an index.php with a phpinfo(); inside it and it shows, that the php.ini works.
When i open http://localhost:8080 and login to PMA it shows me that my upload limit i set to 2048KiB.
Where can i change this?
Thanks in advance!

Answer 1

Use like this UPLOAD_LIMIT env in docker. This is from my docker-compose.yml. Default value for UPLOAD_LIMIT is 2048K which is 2048KiB. Setting value to 300M increases it to 300MiB.
Reference: https://github.com/phpmyadmin/docker#environment-variables-summary
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: 'php7.3-phpmyadmin'
restart: 'always'
links:
- mysql
environment:
PMA_HOST: mysql
PMA_PORT: 3306
UPLOAD_LIMIT: 300M
ports:
- '8082:80'
volumes:
- /sessions

Answer 2

I implemented UPLOAD_LIMIT ENV variable in
https://github.com/phpmyadmin/docker/pull/261/files#diff-80edf79b0f382a3c6e871ac209ffd6abR57

Answer 3

you need to use UPLOAD_LIMIT inside enviroment, and you need to specify values with = sign, like example: UPLOAD_LIMIT=300M
version: '3.1'
services:
db:
image: mysql
command: --default-authentication-plugin=mysql_native_password
restart: always
environment:
MYSQL_ROOT_PASSWORD: somerandompasswordgenerated
ports:
- 3306:3306
phpmyadmin:
image: phpmyadmin
restart: always
ports:
- 8080:80
environment:
- PMA_ARBITRARY=1
- UPLOAD_LIMIT=300M

Answer 4

UPLOAD_LIMIT: 500M
mariadb:
image: mariadb:latest
container_name: w-mariadb
restart: always
ports:
- "3307:3306"
environment:
MYSQL_DATABASE: db_name
MYSQL_USER: root
MYSQL_PASSWORD: db_password
MYSQL_ROOT_PASSWORD: db_password
volumes:
- 'w-mariadb:/var/lib/mysql'
networks:
- w-network
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: w-phpmyadmin
links:
- mariadb
environment:
MYSQL_ROOT_PASSWORD: db_password
PMA_HOST: mariadb
UPLOAD_LIMIT: 500M
restart: always
ports:
- '8383:80'
networks:
- w-network

Answer 5

In my case I couldn't fix it with UPLOAD_LIMIT, so without further debugging I needed a quick solution even if it's temporary:
open phpmyadmin container terminal: docker exec -it container_name bash
If you don't have vim or nano editor install one: apt-get update, apt-get install vim
create config file: vi /usr/local/php/conf.d/myconf.ini
with this content: post_max_size=50M upload_max_filesize=50M
restart container
Remember these changes will be gone when container is recreated, it's just a temporary solution. Try working with UPLOAD_LIMIT as suggested in previous answer.
UPDATE
Tried again with setting upload_limit environment, but still without luck, so found another solution:
created a file say uploads.ini with this content:
post_max_size=50M
upload_max_filesize=50M
and link it to container volume :
phpmyadmin:
image: phpmyadmin/phpmyadmin
links:
- mysql:db
ports:
- 8084:80
volumes:
- ./uploads.ini:/usr/local/etc/php/conf.d/php-phpmyadmin.ini
environment:
MYSQL_ROOT_PASSWORD: something
#UPLOAD_LIMIT: 3000000000 <-- didn't work

Answer 6

the following worked very well.
My docker-compose.yml contains this:
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: some-name
env_file:
- phpmyadmin.env
depends_on:
- mariadb
volumes:
The following entry was added to the phpmyadmin.env: UPLOAD_LIMIT=256MB
The larger number (Maximal: 256MiB) showed up right after the container was brought down and was back up again.

Answer 7

If you want to install from phpmyadmin docker image and with docker run, you can exec this.
docker run --name your-image-name -d --link mysql-docker:db --env "UPLOAD_LIMIT=256M" phpmyadmin
This works for me and enable upload to 256MB SQL file.

Answer 8

I edit this file :
/usr/local/etc/php/conf.d/phpmyadmin-misc.ini
and set new values :
post_max_size=64M
upload_max_filesize=64M
It works fine.