Tmp not mapped?

Installation Home Assistant OS
1

In “Home Assistant supervised” (formerly “HassIO generic Linux install”), it appears /tmp isn’t mapped to /usr/share/hassio/tmp?

Only /config, /share and /ssl is mapped as far as I can tell.

Is there any way to map /tmp to the outside world? Where is the docker file I need to edit?

2

Why do you need it mapped? You can access it via ssh anyway?

3

I’m using the host system SSH, which can’t access /tmp inside home-assistant docker container unless specifically go into the container bash.

If it’s not mapped as I previously thought, what exactly is the /usr/share/hassio/tmp folder used for anyway?

4

Gotcha… inside the container… but why do you want/need to access that?

Should also say if you are running HA-Supervised, you can’t play with the docker command… If you run HA-Core you can use docker-compose etc but then you can’t use the HA addons you get with Supervised.

5

So there isn’t a docker compose file or a docker command/setting anywhere to edit in HA-Supervised?

The Addons are so useful, only running HA-core isn’t an option. But sometimes it would be nice to have access to folders not exposed by default.

6

You still haven’t said why you would need to do this… if you say why there may be some alternative way to get the result you want.

7

Adding more mapped directory to HA container is always something I wanted to do, for example:

  • Trigger shell commands in HA to copy/move snapshot backup file to NAS rather than using shell script in host system with crontab (need backup and NAS folder)
  • camera.record to a different directory than shared or config (eg. not on SD card, a NAS location)
  • file sensor that gets updated every 5min by crontab script on host system, this must be in RAMdisk and doesn’t matter if lost after a reboot (any tmp folder)




Another question I wanted to ask was:
What is /usr/share/hassio/tmp used for anyway?
Reason I ask is because as the name suggests, it’s a temporary directory, which means should be safe to place into RAMdisk and not bother syncing data.

As far as I can see, only snapshot uses it to tar addon data folder, before making a tar of everything. Nothing else uses it?