Pi.Alert trong Docker: phát hiện thiết bị lạ trên mạng LAN

# install prerequisites
sudo apt install apt-transport-https ca-certificates curl software-properties-common gnupg-agent -y
# add docker gpg key
curl -fsSL https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release)/gpg | sudo apt-key add -
# add docker software repository
sudo add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/$(awk -F'=' '/^ID=/{ print $NF }' /etc/os-release) $(lsb_release -cs) stable"
# install docker
sudo apt install docker-ce docker-compose containerd.io -y
# enable and start docker service
sudo systemctl enable docker && sudo systemctl start docker
# add the current user to the docker group
sudo usermod -aG docker $USER
# reauthenticate for the new group membership to take effect
su - $USER

# create working directory
mkdir ~/docker/pialert -p
# set ownership on the working directories
sudo chown "$USER":"$USER" ~/docker -R
# run temp pialert container
docker run -d --name=pialert --net=host -e TZ=America/New_York jokobsk/pi.alert
# copy default config files to host
docker cp pialert:/home/pi/pialert/config ~/docker/pialert/
# copy db to host
docker cp pialert:/home/pi/pialert/db ~/docker/pialert/
# remove the temp container
docker rm pialert --force
# run the pialert container
docker run -d --name=pialert --net=host -e TZ=America/New_York -v ~/docker/pialert/db:/home/pi/pialert/db -v ~/docker/pialert/config/:/home/pi/pialert/config/ --restart=unless-stopped jokobsk/pi.alert