Firefox docker container on HA os for use on ipad 2

Installation
1

Ive been going down the rabbit hole all day of attempting to use an old ipad 2 as a HA wall mount interface. after going through a bunch of threads the only way that seems to work without paying $50 for the kiosk app is hosting this firefox docker on my HA server (raspberry pi 3 with HA os) then connecting to that from the ipad. this is the docker container:

From what i gathered online the home assistant operating system has docker already so i ran the fetch request for the container in terminal with ssh

however when i put in the command:

docker run -d
–name=firefox
-p 5800:5800
-v /docker/appdata/firefox:/config:rw
jlesage/firefox

it installed everything then gave this error message
docker: Error response from daemon: error while creating mount source path ‘/docker/appdata/firefox’: mkdir /docker: read-only file system.

i dont really know what im doing with commands lines and network configurations etc. is there an easy way to change docker from read only? am i on the right track at all here? thanks!

2

No you can not install any old docker container if using HA OS, only add-ons (docker containers managed by the supervisor).

If you want to add and manage your own docker containers then you need to use the Container installation method.

BTW, Firefox is available as an add-on already, see: ha-addons/firefox at main · Mincka/ha-addons · GitHub

Though I doubt it will serve your intended use well. It times out without regular input from a user.

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