Wordpress can be installed but not updated

federicogalimberti · September 3, 2022, 2:45pm

Wordpress can be installed but not updated, my docker configuration has some problems.
Since the cms is very used I ask you if you can help me to correct my configuration.
I saw that there is a special wordpress image but I don’t like it very much because I want to be able to access the CMS files using a volume.

My code:

version: '3.8'

services:

  mysql:
    build: ./mysql
    image: mysql-eb:v.1.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: root_password
      MYSQL_DATABASE: name_database
      MYSQL_USER: user_name
      MYSQL_PASSWORD: password_name
    ports:
      - "3306:3306"

  php-apache:
    build: ./php-apache
    image: image-php-apache-eb:v.1.0
    depends_on:
      - mysql
    volumes:
      - ./volumes/data-php:/var/www/html/
    ports:
      - 8000:80

  phpmyadmin:
    image: phpmyadmin:5.2.0
    ports:
      - '9000:80'
    restart: always
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

FROM php:7.4-apache
RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli

My problem:

Wordpress informs me that there are updates but when I click on the appropriate button the cms asks me for the FTP parameters.

rimelek · September 3, 2022, 11:18pm

This happened to me even without Docker when I used WordPress years ago. I did not remember the cause so I just searched for “wordpress asks ftp” and the fiest result was this:

So it looks like it is a permission issue. Make sure your files are readable.

You are actually using a bind mount, not a volume. That “volumes:” keywoard is just misleading. If you use a volume, the permissions are probably right, but in case of a bind mount, you need to set the proper permissions. Which means, if I remember well, you need to set the owner of the files to 33 which is the userid of www-data

federicogalimberti · September 4, 2022, 3:32pm

Thank you so much for your help.
I had also found that code but it doesn’t seem like a professional solution.
I tried to edit the code like this but the wp-it folder contains all red dots with white x.
1.How do I correct this problem?

version: '3.8'

services:

  mysql:
    build: ./mysql
    image: mysql-eb:v.1.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: ...
      MYSQL_DATABASE: ...
      MYSQL_USER: ...
      MYSQL_PASSWORD: ...
    ports:
      - "3306:3306"

  php-apache:
    build: ./php-apache
    image: image-php-apache-eb:v.1.0
    depends_on:
      - mysql
    volumes:
      - ./volumes/data-php:/var/www/html/
    ports:
      - 8000:80

  wordpress:
    image: wordpress:latest
    ports:
      - 8001:80
    restart: always
    environment:
      - WORDPRESS_DB_HOST=...
      - WORDPRESS_DB_USER=...
      - WORDPRESS_DB_PASSWORD=...
      - WORDPRESS_DB_NAME=...
    volumes:
      - ./volumes/data-php/wp-it:/var/www/html/
      
  phpmyadmin:
    image: phpmyadmin:5.2.0
    ports:
      - '9000:80'
    restart: always
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

My solution is unprofessional.
I would like to have a folder capable of hosting all CMS (wordpress, magento, prestashop, etc …) like that of the main hosting providers.
2.Do you share with my opinion?

This solution is also not bad but still not beautiful.

  php-apache:
    build: ./php-apache
    image: image-php-apache-eb:v.1.0
    volumes:
      - ./volumes/data-php:/var/www/html/
    ports:
      - 8000:80

  wordpress:
    image: wordpress:latest
    ports:
      - 8001:80
    environment:
      - WORDPRESS_DB_HOST=...
      - WORDPRESS_DB_USER=...
      - WORDPRESS_DB_PASSWORD=...
      - WORDPRESS_DB_NAME=...
    volumes:
      - ./volumes/data-wordpress:/var/www/html/

3.Why do the volumes have different access permissions? I would like Docker to create ‘data-wordpress’ with the same features as ‘data-php’.

drwxrwxr-x 3 fe       fe       4096 set  3 07:07 data-php
drwxr-xr-x 5 www-data www-data 4096 set  3 07:07 data-wordpress

Here are the cursed red dots.

I also discovered a very strange new thing. After I restart Linux Ubuntu the red dots disappear and I can edit the files but Wordpress asks for the FTP parameters. I’m very confused.
4.Can you explain this fact to me?

// A) Before reboot

drwxrwxr-x 3 fe       fe       4096 set  4 19:05 data-php
drwxr-xr-x 5 www-data www-data 4096 set  4 19:05 data-wordpress

// B) After reboot

drwxrwxr-x 3 fe fe       4096 set  4 19:05 data-php
drwxr-xr-x 5 fe www-data 4096 set  4 19:05 data-wordpress

After reboot:

If I add the following code I cannot install the themes.

define('FS_METHOD', 'direct');

Wordpress cannot write to the folder. I think this Docker volume I have created is not working or I have created it the wrong way.

ggg

rimelek · September 7, 2022, 3:34pm

I don’t know what red dots you mean, but the picuture you shared does not show any dot, only X-es. It probably means you can’t read or write it, but it depends on the software that you use to browse the files.

The fact that applications in containers can use different users is one of the points of running containers. HTTPD, PHP, NGINX and similar services are intentionally forking their main processes running those on behalf of a non-root user which is not even related to Docker. It is just for security reasons. So even if you use a VPS and and install httpd, you need to set proper file permissions. Which usually means each file which you want to be readable and writable are owned by “www-data”. In case of web hosting, they can give you an FTP access so when you upload files, everything gets the right permisions

Because I used wordpress years ago and I just searched for a solution, so I can’t tell you if the FS_METHOD is right or not… I think you could get the best answer for that from the WordPress forum.

Regarding the permission settings, I am not sure, but I think WordPress has a page where you can see the PHP settings so you can check what user is running WordPress. If it is not www-data, then the owner of the files should be what WordPress can see.

federicogalimberti · September 10, 2022, 1:07pm

Thank you for your support.
I found this code but I haven’t tried it yet:

$ docker run --rm -dit --name wordpress wordpress
$ docker exec -it wordpress bash
etc...

I also report the source:

github.com/docker-library/wordpress

can not upgrade wordpress in the container

opened 10:00AM - 29 Jan 19 UTC

closed 12:49AM - 01 Feb 19 UTC

Neilpang

question

Here is my docker-compose file: ``` web: image: wordpress:php7.3 restart…: always volumes: - ./web:/var/www/html environment: - WORDPRESS_DB_HOST=db - WORDPRESS_DB_USER=exampleuser - WORDPRESS_DB_PASSWORD=examplepass - WORDPRESS_DB_NAME=exampledb links: - db:db db: image: mysql:5 restart: always environment: - MYSQL_ROOT_PASSWORD=sdfwesd342sdfsdgSfk - MYSQL_DATABASE=exampledb - MYSQL_USER=exampleuser - MYSQL_PASSWORD=examplepass volumes: - ./db:/var/lib/mysql ``` I mounted the whole `/var/www/html`. The file permissions are correct: ```sh root@ca:~/sites/web# ll total 212K drwxr-xr-x 5 root root 4.0K Jan 29 17:32 . drwxr-xr-x 5 root root 4.0K Jan 29 17:26 .. -rw-r--r-- 1 www-data www-data 235 Jan 29 17:28 .htaccess -rw-r--r-- 1 www-data www-data 418 Sep 25 2013 index.php -rw-r--r-- 1 www-data www-data 20K Jan 29 17:33 license.txt -rw-r--r-- 1 www-data www-data 7.3K Jan 29 17:33 readme.html -rw-r--r-- 1 www-data www-data 6.8K Dec 13 09:30 wp-activate.php drwxr-xr-x 9 www-data www-data 4.0K Jan 10 02:32 wp-admin -rw-r--r-- 1 www-data www-data 364 Dec 19 2015 wp-blog-header.php -rw-r--r-- 1 www-data www-data 1.9K May 3 2018 wp-comments-post.php -rw-r--r-- 1 www-data www-data 2.8K Jan 29 17:33 wp-config-sample.php -rw-r--r-- 1 www-data www-data 3.2K Jan 29 17:32 wp-config.php drwxr-xr-x 6 www-data www-data 4.0K Jan 29 17:33 wp-content -rw-r--r-- 1 www-data www-data 3.6K Aug 20 2017 wp-cron.php drwxr-xr-x 19 www-data www-data 12K Jan 10 02:32 wp-includes -rw-r--r-- 1 www-data www-data 2.4K Nov 21 2016 wp-links-opml.php -rw-r--r-- 1 www-data www-data 3.3K Aug 22 2017 wp-load.php -rw-r--r-- 1 www-data www-data 37K Dec 13 08:28 wp-login.php -rw-r--r-- 1 www-data www-data 7.9K Jan 11 2017 wp-mail.php -rw-r--r-- 1 www-data www-data 18K Oct 23 15:04 wp-settings.php -rw-r--r-- 1 www-data www-data 30K Apr 30 2018 wp-signup.php -rw-r--r-- 1 www-data www-data 4.6K Oct 24 2017 wp-trackback.php -rw-r--r-- 1 www-data www-data 3.0K Sep 1 2016 xmlrpc.php ``` When I click the `upgrade` or `re-install` wordpress button in the `Updates` menu of the dashboard of the workdpress, it requires me to input a Ftp user/password to. I checked the web root folder and `wp-content` permissions, they are all correct( `xrw` for the `www-data` user) So I add the following line to `wp-config.php` ```sh define('FS_METHOD', 'direct'); ``` Then the upgrade button can work now. what's wrong here? Is there anyone have the same problem ? Thanks in advance.

The following code shows how to download the ‘wordpress’ image from https://hub.docker.com, access the container shell, view the permissions of the various CMS files but not how to edit the permissions using Docker Compose.

My configuration:

drwxr-xr-x  5 www-data www-data  4096 Aug 31 19:05 .
drwxr-xr-x  1 root     root      4096 Aug 23 13:01 ..
-rw-r--r--  1 www-data www-data   261 Aug 31 19:05 .htaccess
-rw-r--r--  1 www-data www-data   405 Feb  6  2020 index.php
-rw-r--r--  1 www-data www-data 19915 Jan  1  2022 license.txt
-rw-r--r--  1 www-data www-data  7401 Mar 22 21:11 readme.html
-rw-r--r--  1 www-data www-data  7165 Jan 21  2021 wp-activate.php
drwxr-xr-x  9 www-data www-data  4096 Aug 30 17:40 wp-admin
-rw-r--r--  1 www-data www-data   351 Feb  6  2020 wp-blog-header.php
-rw-r--r--  1 www-data www-data  2338 Nov  9  2021 wp-comments-post.php
-rw-rw-r--  1 www-data www-data  5480 Aug 31 19:04 wp-config-docker.php
-rw-r--r--  1 www-data www-data  3001 Dec 14  2021 wp-config-sample.php
drwxr-xr-x  5 www-data www-data  4096 Aug 30 17:40 wp-content
-rw-r--r--  1 www-data www-data  3943 Apr 28 09:49 wp-cron.php
drwxr-xr-x 26 www-data www-data 16384 Aug 30 17:40 wp-includes
-rw-r--r--  1 www-data www-data  2494 Mar 19 20:31 wp-links-opml.php
-rw-r--r--  1 www-data www-data  3973 Apr 12 01:47 wp-load.php
-rw-r--r--  1 www-data www-data 48498 Apr 29 14:36 wp-login.php
-rw-r--r--  1 www-data www-data  8577 Mar 22 16:25 wp-mail.php
-rw-r--r--  1 www-data www-data 23706 Apr 12 09:26 wp-settings.php
-rw-r--r--  1 www-data www-data 32051 Apr 11 11:42 wp-signup.php
-rw-r--r--  1 www-data www-data  4748 Apr 11 11:42 wp-trackback.php
-rw-r--r--  1 www-data www-data  3236 Jun  8  2020 xmlrpc.php

Correct configuration:

drwxrwxrwx  5 www-data www-data  4096 Jan 29 17:26 .
drwxr-xr-x  4 root     root      4096 Jan 22 21:56 ..
-rw-r--r--  1 www-data www-data   234 Jan 29 17:26 .htaccess
-rw-r--r--  1 www-data www-data   418 Sep 25  2013 index.php
-rw-r--r--  1 www-data www-data 19935 Jan  3 16:24 license.txt
-rw-r--r--  1 www-data www-data  7415 Mar 18  2018 readme.html
-rw-r--r--  1 www-data www-data  6878 Dec 13 01:30 wp-activate.php
drwxr-xr-x  9 www-data www-data  4096 Jan  9 18:32 wp-admin
-rw-r--r--  1 www-data www-data   364 Dec 19  2015 wp-blog-header.php
-rw-r--r--  1 www-data www-data  1889 May  2  2018 wp-comments-post.php
-rw-r--r--  1 www-data www-data  2853 Dec 16  2015 wp-config-sample.php
drwxr-xr-x  4 www-data www-data  4096 Jan  9 18:32 wp-content
-rw-r--r--  1 www-data www-data  3669 Aug 20  2017 wp-cron.php
drwxr-xr-x 19 www-data www-data 12288 Jan  9 18:32 wp-includes
-rw-r--r--  1 www-data www-data  2422 Nov 21  2016 wp-links-opml.php
-rw-r--r--  1 www-data www-data  3306 Aug 22  2017 wp-load.php
-rw-r--r--  1 www-data www-data 37296 Dec 13 00:28 wp-login.php
-rw-r--r--  1 www-data www-data  8048 Jan 11  2017 wp-mail.php
-rw-r--r--  1 www-data www-data 17421 Oct 23 07:04 wp-settings.php
-rw-r--r--  1 www-data www-data 30091 Apr 29  2018 wp-signup.php
-rw-r--r--  1 www-data www-data  4620 Oct 23  2017 wp-trackback.php
-rw-r--r--  1 www-data www-data  3065 Aug 31  2016 xmlrpc.php

I’d like to keep using this code:

docker compose up -d --build

and edit my .yaml file or my Dockerfile. I would also prefer to use a php image:

FROM php:8.1.9-apache
EXPOSE 80
RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli

instead of wordpress image, which is the following:

https://hub.docker.com/_/wordpress

I would like to recreate a work environment like that of classic hosting providers and then freely install all the CMS I want such as Wordpress, Drupal, Magento, Prestashop, etc … In practice I would like a folder to upload CMS files and be able to install and configure it from the browser.

See you soon and thanks

federicogalimberti · September 11, 2022, 12:05pm

This is my setup:

version: '3.8'

services:

  mysql:
    build: ./mysql
    image: mysql-eb:v.1.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: ...
      MYSQL_DATABASE: ...
      MYSQL_USER: ...
      MYSQL_PASSWORD: ...
    ports:
      - "3306:3306"

  php-apache:
    build: ./php-apache
    image: image-php-apache-eb:v.1.0
    container_name: container-pgadmin-eb
    depends_on:
      - mysql
    volumes:
      - ./volumes/data-php:/var/www/html/:rw
    ports:
      - 8000:80

  phpmyadmin:
    image: phpmyadmin:5.2.0
    ports:
      - '9000:80'
    restart: always
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

FROM php:7.4-apache
RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli

docker compose up -d --build

If I go into the container and check the contents, I notice that Docker is using user 1000 instead of www-data.

root@612465a7bae8:/var/www/html# cd wp-it
root@612465a7bae8:/var/www/html/wp-it# ls -la  
total 248
drwxr-xr-x  5 1000 1000  4096 Sep  1 22:42 .
drwxr-xr-x  4 1000 1000  4096 Sep 11 11:51 ..
-rw-r--r--  1 1000 1000   405 Feb  6  2020 index.php
-rw-r--r--  1 1000 1000 19915 Aug 30 20:07 license.txt
-rw-r--r--  1 1000 1000 24880 Aug 30 20:07 licenza.html
-rw-r--r--  1 1000 1000  7766 Aug 30 20:07 readme.html
-rw-r--r--  1 1000 1000  7165 Jan 21  2021 wp-activate.php
drwxr-xr-x  9 1000 1000  4096 Sep  3 08:24 wp-admin
-rw-r--r--  1 1000 1000   351 Feb  6  2020 wp-blog-header.php
-rw-r--r--  1 1000 1000  2338 Nov  9  2021 wp-comments-post.php
-rw-r--r--  1 1000 1000  3186 Aug 30 20:07 wp-config-sample.php
drwxr-xr-x  5 1000 1000  4096 Sep  1 22:43 wp-content
-rw-r--r--  1 1000 1000  3943 Apr 28 09:49 wp-cron.php
drwxr-xr-x 26 1000 1000 12288 Sep  3 08:24 wp-includes
-rw-r--r--  1 1000 1000  2494 Mar 19 20:31 wp-links-opml.php
-rw-r--r--  1 1000 1000  3973 Apr 12 01:47 wp-load.php
-rw-r--r--  1 1000 1000 48498 Apr 29 14:36 wp-login.php
-rw-r--r--  1 1000 1000  8577 Mar 22 16:25 wp-mail.php
-rw-r--r--  1 1000 1000 23706 Apr 12 09:26 wp-settings.php
-rw-r--r--  1 1000 1000 32051 Apr 11 11:42 wp-signup.php
-rw-r--r--  1 1000 1000  4748 Apr 11 11:42 wp-trackback.php
-rw-r--r--  1 1000 1000  3236 Jun  8  2020 xmlrpc.php

In addition to the folder “.” which should be “/var/www/html/wp-it” missing write permissions to the group and other users.

This should be the correct configuration.

drwxrwxrwx  5 www-data www-data  4096 Jan 29 17:26 .
drwxr-xr-x  4 root     root      4096 Jan 22 21:56 ..
-rw-r--r--  1 www-data www-data   234 Jan 29 17:26 .htaccess
-rw-r--r--  1 www-data www-data   418 Sep 25  2013 index.php
-rw-r--r--  1 www-data www-data 19935 Jan  3 16:24 license.txt
-rw-r--r--  1 www-data www-data  7415 Mar 18  2018 readme.html
-rw-r--r--  1 www-data www-data  6878 Dec 13 01:30 wp-activate.php
drwxr-xr-x  9 www-data www-data  4096 Jan  9 18:32 wp-admin
-rw-r--r--  1 www-data www-data   364 Dec 19  2015 wp-blog-header.php
-rw-r--r--  1 www-data www-data  1889 May  2  2018 wp-comments-post.php
-rw-r--r--  1 www-data www-data  2853 Dec 16  2015 wp-config-sample.php
drwxr-xr-x  4 www-data www-data  4096 Jan  9 18:32 wp-content
-rw-r--r--  1 www-data www-data  3669 Aug 20  2017 wp-cron.php
drwxr-xr-x 19 www-data www-data 12288 Jan  9 18:32 wp-includes
-rw-r--r--  1 www-data www-data  2422 Nov 21  2016 wp-links-opml.php
-rw-r--r--  1 www-data www-data  3306 Aug 22  2017 wp-load.php
-rw-r--r--  1 www-data www-data 37296 Dec 13 00:28 wp-login.php
-rw-r--r--  1 www-data www-data  8048 Jan 11  2017 wp-mail.php
-rw-r--r--  1 www-data www-data 17421 Oct 23 07:04 wp-settings.php
-rw-r--r--  1 www-data www-data 30091 Apr 29  2018 wp-signup.php
-rw-r--r--  1 www-data www-data  4620 Oct 23  2017 wp-trackback.php
-rw-r--r--  1 www-data www-data  3065 Aug 31  2016 xmlrpc.php

rimelek · September 11, 2022, 12:41pm

it mentions “chown”. If you don’t know something in a post that is supposed to help you, search for that part on Google.

the first result is okay, but the second may be more user friendly with more eamples:

chown -R www-data:www-data .

Run it in the container or as root from your host. Note that if you change the owner, you will not be able to edit the files from the host, but you don’t need to in production. During development you can change the permissions intsead of the owner:

chmod -R 0777 .

federicogalimberti · September 11, 2022, 2:15pm

A thousand thanks.
I can do it like this from the host:

cd /home/gi/Dropbox/DOCKER/Docker-Php-MySQL
docker compose down --volumes
sudo chown -R www-data:www-data /home/gi/Dropbox/DOCKER/Docker-Php-MySQL/volumes/data-php/wp-it
docker compose up -d --build

The serious problem of the code is that when I want to change the wordpress folder on the server I have to change the permissions on the file and this is very inconvenient. Not good as a solution.
I rather use the initial solution (777 as permission + define (‘FS_METHOD’, ‘direct’); in the Wordpress config file).

cd /home/gi/Dropbox/DOCKER/Docker-Php-MySQL
docker compose down --volumes
sudo chmod -R 777 /home/gi/Dropbox/DOCKER/Docker-Php-MySQL/volumes/data-php/wp-it
docker compose up -d --build

Is it so risky to assign those permissions even in production?

rimelek · September 11, 2022, 2:30pm

The fact that you run the server in a container will not stop hackers to use a vulnerability of WordPress and change your files in a container to show something that you don’t really want to see on your site. Although changing the owner of all files are not really better since the owner probably has all the permissions. Maybe not execution, but the best solution would be to change the permissions or ownerrs of the files and that WordPress need to write. That is something that you should be able to find out by reading the documentation or asking on the WordPress forum. As I pointed it out before, it is not a Docker issue, but also important without using containers. The only difference here is that you waht to be able to change files on the host and still let WordPress to access those files.

On the other hand, the files that WordPRess needs to write, are probably the ones that you don’t want to write frequently. For example generated configuration files or uploaded photos. The source code should not be writable by WordPress, so now that you know the problem was the permission, you can find out what files WordPeess needs to write and change the permission of those files only.

I also have to note that using you should not update WordPress running in containers. You should create a new Docker image. Since I used WordPress long time ago, I don’t know how easy it is (it was not easy then), but that is the right approach in case of containers. If you don’t like that, you will have more problems with containers and you may want to use virtual machines instead.

federicogalimberti · September 11, 2022, 4:42pm

I tried to use the wordpress image and I discovered an interesting detail.

If I use this type of volume:

    volumes:
      - wordpress:/var/www/html
      ...

volumes:
  wordpress:

everything works perfectly but I can’t access the contents of the CMS. For example, if I want to download a photo from Google Cloud that I entered a year ago, I can’t do it.
If I use this type of volume instead:

    volumes:
      - ./volumes/data-wordpress:/var/www/html

I can access the contents but the permissions are not persistent. I give an example.
1) I install wordpress in the following way;

version: '3.8'

services:

  mysql:
    build: ./mysql
    image: mysql-eb:v.1.0
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: 
      MYSQL_DATABASE: 
      MYSQL_USER: 
      MYSQL_PASSWORD: 
    ports:
      - "3306:3306"

  wordpress:
    image: wordpress:6.0.2
    restart: always
    ports:
      - 8001:80
    environment:
      WORDPRESS_DB_HOST: 
      WORDPRESS_DB_USER: 
      WORDPRESS_DB_PASSWORD: 
      WORDPRESS_DB_NAME: 
    volumes:
      - ./volumes/data-wordpress:/var/www/html

  phpmyadmin:
    image: phpmyadmin:5.2.0
    ports:
      - '9000:80'
    restart: always
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

2) Everything works perfectly and I can’t edit wordpress files;
3) Restart the OS hosting Docker;
4) After the restart the permissions have changed in fact I can access the php files of the volume and edit them directly from the host system.
5) If I launch this command everything starts working again:

sudo chown -R www-data:www-data /home/gi/Dropbox/DOCKER/Docker-Php-MySQL/volumes/data-wordpress

As you can see the permissions are not persistent.
Is this a Docker bug or a bug in the image created to use Wordpress?

If I go to this link:
https://hub.docker.com/_/wordpress
I find a ton of images. I would not like that among these there was an image more suitable for my case.
What do you think?

federicogalimberti · September 13, 2022, 4:10pm

@rimelek you haven’t tried my setup on your computer. If you had tried it you would have noticed that it works. I understand why it doesn’t work on my PC. The problem is Dropbox. If I move the project out of Dropbox, the permissions remain unchanged after the machine is restarted. Obviously the problem of permissions remains. I can read but not write. If I want to perform a wordpress restore on a real server I can’t do it. In the Docker documentation I read that there is a specific command to do this called “:rw”. I have tried this but it doesn’t solve.

Why?

rimelek · September 13, 2022, 10:30pm

I don’t know what that means. Please, be specific.
rw = “Read and Write” is the default behavior

federicogalimberti · September 17, 2022, 5:45pm

I apologize for my English and for being unclear. I rephrase the question.

Create this file on your computer:

version: '3.8'

services:

  mysql:
    image: mysql:8.0.30-debian
    environment:
      MYSQL_ROOT_PASSWORD: root_password
      MYSQL_DATABASE: DATABASE_EB
      MYSQL_USER: Proprietario
      MYSQL_PASSWORD: password
    ports:
      - "3306:3306"

  wordpress:
    image: wordpress:6.0.2
    ports:
      - 8001:80
    environment:
      WORDPRESS_DB_HOST: mysql
      WORDPRESS_DB_USER: Proprietario
      WORDPRESS_DB_PASSWORD: password
      WORDPRESS_DB_NAME: DATABASE_EB
      WORDPRESS_TABLE_PREFIX: wp_it_
    volumes:
      - ./volumes/data-wordpress:/var/www/html:rw

  phpmyadmin:
    image: phpmyadmin:5.2.0
    ports:
      - '9000:80'
    environment:
      PMA_HOST: mysql
    depends_on:
      - mysql

Run the code like this:

docker compose up -d --build

Move to this folder:

/volumes/data-wordpress

All files are protected. I cannot edit the files contained in this folder. I thought that by writing “:rw” I would be able to edit all these files but this is not the case. I would like to make the files contained in “/volumes / data-wordpress” editable. The volume that Docker creates is not accessible.

Did you understand my question or not?

One solution I found is to use ‘user: my-user-id’ but that’s crap because Docker’s beauty fades in a flash. Could you recommend me a more professional solution?

federicogalimberti · September 17, 2022, 10:42pm

What should I write to have a real volume?
I need to be able to backup and restore the container files. Some information I recover from the database but the photos do not.

rimelek · September 18, 2022, 7:47pm

The professional way is not accessing the files from the host written by the user in the container. During development, if you want to do that, you need to set the ownership, groups and permissions. The exact way to do that depends on the application. You can change the user that runs the process in the container, change the server settings to change the user that creates the files, change the file permissions so the group can write the files (currently it can’t), so you can add yourself to the group on the host and write the files. Otherwise you can write it with the root user.

That controlls the container not your host.

That is not a volume. That is just a bind mounted folder. Don’t let yourself to be confused by the “volumes” parameter.

federicogalimberti · September 18, 2022, 8:14pm

What should I write to have a real volume?
I need to be able to backup and restore the container files. Some information I recover from the database but the photos do not.

federicogalimberti · September 20, 2022, 4:01pm

@rimelek I need a professional solution. You are the expert. Can you help me?

rimelek · September 21, 2022, 8:22pm

Sorry, I can’t give you a command that you copy and paste and works. I mentioned you need to set proper permissions. You use WordPress, I don’t. I can help you with questions regarding Docker, but this is not about Docker anymore, but Linux basics and even though I would like to help everyone here, there is a point where draw the line and say you need to learn the basics in order to continue and I can’t learn it for you.

I also told you that editing files created by processes inside Docker containers is not “professional”. It is an understandable need sometimes during development, but then you need to figure out what your application requires and configure the permissions properly, That is different for every application so I can’t and I don’t want to give you a command that configures it some way and then something does not work for you because a folder is writable but it should not be writable and the application can’t start until you fix it, or I make a folder read-only and that is why the aplication cannot start. Of course the application in this case is WordPress and as I suggested for your previous question in this topic:

Sometimes when I have time and I like the topic because that topic helps me too some ways, I also do some research and find out how a software works, but this is not that case.

What I plan to do is create some videos or blog posts about some topics that can help everyone, like using an app with Docker during development, but WordPress is not something I plan to explain in the near future.

We also discussed multiple questions here and this is not the first topic in which we did that, but in this case I didn’t want to mention it until now. Please, try to focus on one problem and when you get some advice, try to learn, because using Linux containers also requires basic Linux skills. Without that, you will not be able to go far.

You have probably noticed that recently I am the only one who tries to reply to your questions and I also delay those replies because there are many questions asked by many users here but there are not many who can or want to answer and your questions require more time to answer because your goals are too big for your current knowledge. That’s why we need your help to do your research so you can learn much more and eventually even help someone else.

In the end some staticstics to show you how much time I have spent on your questions which you thanked me with your many likes which I appreciate of course.

You are the third person who liked my posts the most and the first and the second users were moderators in every topic where I helped someone.
You are the second person I replied to the most, and the first person is @meyay who also tried to help you and many other users and we replied to each others post a lot in many topics where we helped together.

Screenshot 2022-09-21 at 21.45.02

federicogalimberti · September 22, 2022, 1:44pm

I have also opened a discussion on the Italian site of WordPress and Linux but they don’t know how to help me.
Can the following code be broken into two lines?

CURRENT_UID=$(id -u):$(id -g) docker compose up -d --build

I would like to have the following code on one line:

docker compose up -d --build

P.S.: Which CMS do you use? Drupal? Joomla? Prestahop? Magento?

rimelek · September 23, 2022, 6:50pm

export URRENT_UID=$(id -u):$(id -g)
docker compose up -d --build

I used Drupal.

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Wordpress can be installed but not updated

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