Ssh login FROM homeassistant to remote computer (libreELEC)

Configuration
10

My situation is quite similar:

  • two RPi with Libreelec (Kodi)
  • first RPi with HA in Docker
    How to open SSH without entering password manually from one Rpi to another?

Update:
Found a solution here:

  1. Run a command:
    ssh-keygen

Output:

Generating public/private rsa key pair.
Enter file in which to save the key (/storage/.ssh/id_rsa):
Enter passphrase (empty for no passphrase): PRESS ENTER
Enter same passphrase again: PRESS ENTER
Your identification has been saved in /storage/.ssh/id_rsa.
Your public key has been saved in /storage/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
The key's randomart image is: 
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

  1. Run a command:
    cat ~/.ssh/id_rsa.pub | ssh root@IP_ADDRESS_OF_DESTINATION ‘mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys’

  2. Run SSH without a password:
    ssh root@IP_ADDRESS_OF_DESTINATION

Output:

##############################################
#                 LibreELEC                  #
#            [https://libreelec.tv](https://libreelec.tv/)            #
##############################################
LibreELEC (official): 9.2.4 (RPi2.arm)

RPi-1:~ #
  1. To run a command remotely:
    ssh root@IP_ADDRESS_OF_DESTINATION ‘COMMAND’