How to install apps with Docker on Yunohost (how I did it)

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22

The contener is running :

CONTAINER ID   IMAGE                         COMMAND                 CREATED             STATUS             PORTS                                                                                                                                 NAMES
6a78af065423   allebb/studio-server:latest   "/bin/sh -c /boot.sh"   About an hour ago   Up About an hour   0.0.0.0:8543->8543/tcp, :::8543->8543/tcp, 0.0.0.0:50059->50059/tcp, :::50059->50059/tcp, 0.0.0.0:5433->5432/tcp, :::5433->5432/tcp   studio-server

I check the log, there is one error, but seems not to be too much a problem :s

2024-02-16 12:43:30.534 GMT [413] ERROR:  duplicate key value violates unique constraint "cache_pkey"
2024-02-16 12:43:30.534 GMT [413] DETAIL:  Key (key)=(studio_server_web_cache_logo) already exists.
2024-02-16 12:43:30.534 GMT [413] STATEMENT:  insert into "cache" ("key", "value", "expiration") values ($1, $2, $3)
23

I am not knowledgable enough, unfortunately, but I suppose this has more to do with the application than with Docker or Yunohost, so maybe you could consult the support of the application?

24

I just sent an email, i will see for that.

Thanks for you time :slight_smile:

I found out an opensource project, maybe i should try this one :

25

I really have the impression that itā€™s yunohost which (for good reasons) refuses to let the client software reach the server. I tried opening the ports (and closing them) but it didnā€™t work.

I tried on another computer on a blank debian, everything worked fine in local ip.

Edit, iā€™ve got this error on resolve when i try to connect on local ip

Capture dā€™eĢcran 2024-02-16 aĢ€ 14.58.26
Capture dā€™eĢcran 2024-02-16 aĢ€ 14.58.261002Ɨ514 46.4 KB

26

From what I understand, here the local IP for the psql server is the IP of your server.
And you opened port 5433 for the postgresql docker.

You have 2 ways to connect to postgresql from one docker to another :

  • If you used a docker-compose.yml, youā€™ll be able to connect using the local docker DNS, directly on the internal port.
  • If not, by using the server IP, you must use port 5433

I suggest to use a docker-compose.yml, that way all dockers will be linked, youā€™ll have a sort of local network for all the images in the same docker-compose.yml, and no need to remember the starting command. (But you do not have to, itā€™s just a suggestion, you can run them perfectly without this)

1 Like
27

Thanks a lot for sharing! Iā€™ll try to adapt this in a few days for zigbee2mqtt (Iā€™d love to help with the ynh package, but currently only have a productive system). Do you have a special backup strategy for your approach?

I see in the example you use the volume scheme /home/my-app/my-volume, so probably youā€™d only need to back up this one. I wonder what works nicely with the docker approach. I could integrate additional files/hooks with the current method like described in the wiki. But as I may want to change to other methods anyway, I wonder what you use.

Idea drop: We do have this approach with .nobackup files. I think, we could also have a cron script creating hooks for all folders in /home with a docker-compose.yml or a .folderbackup file, after shutting down the container.

28

I managed to make it work by making a NAT rules postrooting port 3432 to the docker.

Thats very cool now.

29

Hi @freddewitt can you tell us how you did it? I just found out that - due to internal Yunohost (firewall?) issues, two containers within a docker compose file cannot communicate with each other. How would we have to adapt the docker compose file? Thanks

30

I used iptables, to direct all communication from 3432 to the docker port (3434 in my case). I did it after install my docker. So i guess in your case you have to make a ā€œbridgeā€ between theses. But iā€™m a relative begginer so maybe iā€™am wrong.

31

uh, I am scared of iptablesā€¦ but I will keep experimenting