Quickly setup a basic video stream from a Raspberry Pi and Pi Camera module

picamera-streamer.sh

#/bin/bash

# Sets up Miguel Grinberg's excellent Flask video streaming example to automatically start on boot using the PiCamera

# Run script without downloading (must be logged into Raspberry Pi):
# curl -s https://gist.githubusercontent.com/martinharding/b3c31cf93ed581f6be2519f9957c3f7c/raw/picamera-streamer.sh -o picamera-streamer.sh && chmod +x picamera-streamer.sh && ./picamera-streamer.sh

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# First install!
if ! [ -d $DIR/flask-video-streaming ]; then

    # Update packages
    sudo apt-get update
    sudo apt-get upgrade -y

    # Install flask video streaming app
    sudo apt-get install -y python3-pip git
    git clone https://github.com/miguelgrinberg/flask-video-streaming.git $DIR/flask-video-streaming
    cd $DIR/flask-video-streaming
    pip3 install -r requirements.txt
    pip3 install picamera

    # Run server script on boot
    echo "[Unit]
Description=Stream PiCamera to web
After=multi-user.target

[Service]
ExecStart=/bin/bash $DIR/picamera_streamer.sh
User=${whoami}
Group=${whoami}
Type=simple

[Install]
WantedBy=multi-user.target
" > $DIR/video-stream.service
    sudo mv $DIR/video-stream.service /lib/systemd/system/video-stream.service
    sudo chmod 644 /lib/systemd/system/video-stream.service
    sudo systemctl daemon-reload
    sudo systemctl enable video-stream.service

    # Enable camera
    sudo raspi-config nonint do_camera 1
    echo "Please reboot (you can use the command 'sudo reboot now' to do this remotely)"
else
    # sudo systemctl status video-stream.service
    CAMERA=pi python3 $DIR/flask-video-streaming/app.py >> log.txt 2>&1 &
fi