# Headless_Pi

How to setup a Raspberry Pi headless.

# Get an Image
Download the Lite Image from here: https://www.raspberrypi.org/software/operating-systems/ and flash it with the tool from here: https://www.balena.io/etcher/

# Changes on boot
- Add an empty file named ssh on boot partition to enable ssh
- Add a new file named wpa_supplicant.conf on boot partition to enable WiFi on boot. Use attached wpa_supplicant.conf as example.

# Fire up
- Inserd SD-card in your raspi and power it up. Wait afew minutes to let it boot up.
- you can get the IP of your raspi by looking at your dhcp-server or your wlan-router
- login via ssh on your raspberry pi with the user pi and raspberry as password
- open up `sudo raspi-config` and change your pi password!
- expand filesystem to get the most of your SD-card space

# prepair anything else
- create a ssh key with `ssh-keygen` for user pi
- go to admcenter and `ssh-copy-id pi@<your-pi-ip>` and login with your new pi password
- initiate the new system with ansible `ansible-playbook -i <your-pi-ip>, -u pi /etc/ansible/playbooks/init.yml`

# python3 installation
- install python3 with `sudo apt install python3 python3-dev`
- generate alternatives:
    - `update-alternatives --install /usr/bin/python python /usr/bin/python3.7 2 # on debian buster default python3 is 3.7`
    - `update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1 # old python version`
- install pip3 with `sudo apt install python3-pip`