Volume permissions

[jvinolas]

Is it possible to mount moodledata and html folders on a host path like this:

    volumes:
      - ${DATA_FOLDER}/moodle/data:/var/www/moodledata:rw
      - ${DATA_FOLDER}/moodle/html:/var/www/html:rw

It says that the installer can't create the /var/www/moodledata/ folder.

[erseco]

Yes, you can, but remember to create the folder with the nobody user. Also remember to copy the isinstalled.php file in the www/html/admin/cli folder or the startup script won't work.

I prefer using data volumes instead of mounting folders, is faster for high volume sites or hosts with rare filesystems (macos, bsd...) And also easier to update.

Best!

[jvinolas]

I see your point. But we want to control where the storage is put by defining de volume mountpoint as moodle data will be on network storage.

Thanks, I'll try

[jvinolas]

Sorry to reopen again, I'm to able to create those folders (html and moodledata) as nobody user in the derivated Dockerfile neither at 02-configure-moodle.sh. Do you mean to change the owner at host side?

[erseco]

Don't worry, I will let it open until worked. You need to create the folder on the host side, please share your docker-compose and Dockerfile to check what is happening. Check also there is no problem with SELinux as you can read here: https://stackoverflow.com/questions/24288616/permission-denied-on-accessing-host-directory-in-docker

[jvinolas]

These are the relevant parts:

version: '3.7'
services:
  isard-office-moodle:
    #image: erseco/alpine-moodle
    build:
      context: ${BUILD_ROOT_PATH}/docker/moodle
      dockerfile: Dockerfile.test
    container_name: isard-office-moodle
    restart: unless-stopped
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - ${DATA_FOLDER}/moodle/data:/var/www/moodledata:rw
      - ${DATA_FOLDER}/moodle/html:/var/www/html:rw

And the Dockerfile.test:

FROM erseco/alpine-moodle
USER root
RUN chown -R nobody:nobody /var/www/html
RUN chown -R nobody:nobody /var/www/moodledata
USER nobody
COPY rootfs/docker-entrypoint-init.d/02-configure-moodle.sh /docker-entrypoint-init.d/02-configure-moodle.sh
COPY rootfs/isinstalled.php /

Also the relevant part of the modified 02-configure-moodle.sh:

# Check if the config.php file exists
if [ ! -f /var/www/html/config.php ]; then
    echo "Downloading moodle src..."
    curl --location $MOODLE_URL | tar xz --strip-components=1 -C /var/www/html/
    cp /isinstalled.php /var/www/html/admin/cli/
    sh /plugins.sh
    chown -R nobody:root /var/www/html

    echo "Generating config.php file..."

The host OS is Debian and I stopped apparmor also without success. With this configuration it says:

Starting startup scripts in /docker-entrypoint-init.d ...
*** Running: /docker-entrypoint-init.d/01-uname.sh
Linux c46d005c0e8a 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64 Linux
*** Running: /docker-entrypoint-init.d/02-configure-moodle.sh
Waiting for isard-office-postgresql:5432 to be ready
 is ready
Downloading moodle src...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   132  100   132    0     0    705      0 --:--:-- --:--:-- --:--:--   709
tar: can't open '.eslintignore': Permission denied
100 42349    0 42349    0     0  80511      0 --:--:-- --:--:-- --:--:-- 80511
curl: (23) Failure writing output to destination
*** Failed with return value: 0

Thanks

[erseco]

You are downloading again the moodle source, maybe, in that case, will be easier to use my parent container alpine-php7-webserver and configure moodle by yourself using this container scripts or your own. It will be smaller and easier to maintain than overwriting this container moodle files.

[jvinolas]

I donwloaded as I couldn't mount path as volume over the existing one, but if there is a simpler way of doing it with you alpine-moodle image I will do it. But I don't know how.

[erseco]

For doing this using the alpine-moodle container but binding the files you first must copy the files in your folder, for doing that:

Run the container (just to copy files)

docker run --rm -it erseco/alpine-moodle

Copy files to your desired place (${DATA_FOLDER}/moodle/)

docker cp <container_id>:/var/www/moodledata ${DATA_FOLDER}/moodle/
docker cp <container_id>:/var/www/html ${DATA_FOLDER}/moodle/

Stop the container. It will be deleted (--rm) when stopped.

docker stop <container_id>

Run the whole system with docker-compose up using a file similar to this:

version: '3.7'
services:
  isard-office-moodle:
    image: erseco/alpine-moodle
    restart: unless-stopped
    volumes:
      - ${DATA_FOLDER}/moodle/moodledata:/var/www/moodledata:rw
      - ${DATA_FOLDER}/moodle/html:/var/www/html:rw
    environment:
      - LANG=en_US.UTF-8
      - LANGUAGE=en_US:en
      - SITE_URL=http://localhost
      - DB_TYPE=pgsql
      - DB_HOST=postgres
      - DB_PORT=5432
      - DB_NAME=moodle
      - DB_USER=moodle
      - DB_PASS=moodle
      - DB_PREFIX=mdl_
      - SSLPROXY=false
      - MOODLE_EMAIL=user@example.com
      - MOODLE_LANGUAGE=en
      - MOODLE_SITENAME=New-Site
      - MOODLE_USERNAME=moodleuser
      - MOODLE_PASSWORD=PLEASE_CHANGEME
      - SMTP_HOST=smtp.gmail.com
      - SMTP_PORT=587
      - SMTP_USER=your_email@gmail.com
      - SMTP_PASSWORD=your_password \
      - SMTP_PROTOCOL=tls
      - MOODLE_MAIL_NOREPLY_ADDRESS=noreply@localhost
      - MOODLE_MAIL_PREFIX=[moodle]
    ports:
      - 80:8080
    depends_on:
      - postgres

  postgres:
    image: postgres:alpine
    restart: unless-stopped
    environment:
      - POSTGRES_PASSWORD=moodle
      - POSTGRES_USER=moodle
      - POSTGRES_DB=moodle
    volumes:
      - postgres:/var/lib/postgresql/data
volumes:
  postgres: null

[erseco]

Closing this due to inactivity. Let me know if you still experience this issue.