Tag: docker

Keeping your data while restarting Joomla Docker in unRAID

Finally, there is an official Joomla (4.x) Docker made for unRAID. But it is not done well. As in, you will lose all your settings and data when you restart your docker. So you need to copy the data outside the docker into the appdata folder. (Or wherever you want it)

Inside the docker image, the Joomla folder resides here:

/var/www/html/

And this is the folder you need to make “external” by adding a path to the edit/install panel.

  1. Give it a name at “Name:”
  2. Enter the following line to “Container Path:” 
    /var/www/html
  3. Enter the following line to “Host Path:” 
    /mnt/user/appdata/joomla-data/

Done.

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Archivebox Docker superuser root issues

Since unraid forum is throwing a hissyfit with its captcha thing, I’ll just post it on my own website.

Issue:

root@<containername>:/data# archivebox manage createsuperuser
[i] [2021-11-11 14:29:07] ArchiveBox v0.6.2: archivebox manage createsuperuser
> /data

[i] ArchiveBox should never be run as root!
For more information, see the security overview documentation:
https://github.com/ArchiveBox/ArchiveBox/wiki/Security-Overview#do-not-run-as-root

Oh noes. Open the unraid console and type:

$ sudo docker exec -it --user archivebox <containername> /bin/bash

If you do not know the name of your docker, open the console panel of the archivebox docker and search in the url for “container=”. The number behind that is the name of your docker.

So your prompt looks like this:

archivebox@<containerid>:/data$

Then run:

archivebox manage createsuperuser

Sauce: https://forums.unraid.net/topic/95296-run-docker-as-another-user/?do=findComment&comment=993988

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How to fix Docker update “not available” in unRAID 6.8.3

Because something went wrong probably and it takes unRAID literally ages to issue an update. So here’s the fix!

(until you restart the server)

SSH into unRAID and edit this file: /usr/local/emhttp/plugins/dynamix.docker.manager/include/DockerClient.php

replace this line:

preg_match('@Docker-Content-Digest:\s*(.*)@', $reply, $matches);

with this

preg_match('@Docker-Content-Digest:\s*(.*)@i', $reply, $matches);

Sauce: https://www.reddit.com/r/unRAID/comments/nk1sa2/how_to_fix_docker_update_not_available_in_unraid/

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unRAID Docker image corrupted solution

Warning: This method worked for me and I used this source for it. Proceed at your own risk. Also I need to note that I do not use Cache in any form.

The problem:
You have rebooted your unRAID server and your docker service is refusing to start. What you may see is the following:

and

Apr 2 02:25:30 Tower emhttpd: shcmd (264): /etc/rc.d/rc.docker start
Apr 2 02:25:30 Tower root: starting dockerd ...
Apr 2 02:25:36 Tower kernel: BTRFS error (device loop2): parent transid verify failed on 23757324288 wanted 2572174 found 2572201
Apr 2 02:25:36 Tower kernel: BTRFS error (device loop2): parent transid verify failed on 23757324288 wanted 2572174 found 2572201
Apr 2 02:25:46 Tower kernel: BTRFS error (device loop2): parent transid verify failed on 23729225728 wanted 2572162 found 2572190
Apr 2 02:25:46 Tower kernel: BTRFS error (device loop2): parent transid verify failed on 23729225728 wanted 2572162 found 2572190
Apr 2 02:25:46 Tower kernel: BTRFS: error (device loop2) in __btrfs_free_extent:6805: errno=-5 IO failure
Apr 2 02:25:46 Tower kernel: BTRFS info (device loop2): forced readonly
Apr 2 02:25:46 Tower kernel: BTRFS: error (device loop2) in btrfs_run_delayed_refs:2935: errno=-5 IO failure
Apr 2 02:25:46 Tower kernel: BTRFS warning (device loop2): btrfs_uuid_scan_kthread failed -30
Apr 2 02:25:51 Tower emhttpd: shcmd (266): umount /var/lib/docker
Apr 2 02:25:51 Tower root: umount: /var/lib/docker: target is busy.

This of course, made me extremely nervous. Luckily this only meant that my docker file got corrupted. It happened most likely while I was moving it while the docker service was still active. Yeah, it happens.

Solution:
It’s fairly simple, but it takes a little bit of time.

  1. Go to Settings -> Docker -> Enable Docker, and set to No, then click the Apply button (this disables Docker support)
  2. Go to the location of your docker image and rename the file to docker.img.bak – The file may be in 
    /mnt/user/system/docker

    I’m asking you to make a backup, because in all cases, safety first. “Why didn’t you have a backup in the first place?”, I hear you say. Yeah yeah, we all make mistakes every so often! D:

  3. Go to Settings -> Docker -> Enable Docker, and set to Yes and this creates a fresh and empty Docker image. The docker service should now be started. You can see this as this on the docker settings page:

    and on the dashboard you should now see an empty docker field.

  4. Now go to the Apps Tab, Previous Apps Section. Then check off all of your previous applications and hit “Install”

I recommend to do it one by one so you can double-check the settings and clean up the unused templates after you’re done. If you want to make a copy of the templates, FTP into your server and go to

/boot/config/plugins/dockerMan

After you have restored your docker apps, you’re done. Check all the things and make a backup 😉

 

 

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