Update Docker containers on Fireawlla

updatedocker.sh

#!/bin/bash

# version 3.2.0
# https://gist.github.com/mbierman/6cf22430ca0c2ddb699ac8780ef281ef

wait=1
container=$1

DOCKER=$(which docker)
# Check if Docker is installed
if [ -z "$DOCKER" ]; then
    echo "Error: Docker is not installed or not in your PATH."
    exit 1
fi


function finished () {
        echo -e "\n please wait ($wait seconds) for the container to restart"
        while [ "$ready" != "Up" ] ; do
                sleep $wait
                ready=$(sudo docker ps | grep $container | grep -o 'Up')
        done
	
	echo "$image refreshed"
	# sudo $DOCKER container prune -f
}


if [ "$container" = "homebridge" ]; then
        image="homebridge/homebridge:ubuntu"

elif [ "$container" = "docker-notify" ]; then
        image="schlabbi/docker-notify:latest"

elif [ "$container" = "unifi" ]; then
        image="jacobalberty/unifi:latest"
    
elif [ "$container" = "ddns" ]; then
        image="oznu/cloudflare-ddns:latest"
    
else
        echo -e "Container not supported\nUse \"homebridge\", \"docker-notify\", \"unifi\" "
        exit
fi

        echo "Checking container..."
        versioncheck=$( sudo $DOCKER pull $image| tee /dev/tty | grep -c "Status: Image is up to date" )
if [ $versioncheck = 1 ] ; then
        echo "No update required."
        exit
else        
        read -n 1 -s -r -p "Want to update $image ? \n\nPress any key to continue."
	yaml=/home/pi/.firewalla/run/docker/$container
        cd $yaml
        echo "stopping $image..."
        sudo $DOCKER container stop $container && echo "removing ${container}'s container" && sudo $DOCKER container rm $container
        sudo $DOCKER image prune -f
        sudo $DOCKER system prune -f
	echo "bringing $image up"
        sudo docker-compose up -d
        sudo $DOCKER ps

        read -n 1 -s -r -p "Ready to clean up. Press any key to continue."

finished

fi 

I use this to update various docker containers on several platforms so I don't have to remember how and I don't make any mistakes. To install, ssh to your Firewalla

% cd ~/.firewalla/run/docker
% curl -o dockerupdate.sh https://gist.githubusercontent.com/mbierman/6cf22430ca0c2ddb699ac8780ef281ef/raw/57f0de8bd42a4dad39f1ed7fc5f746d53cedc7ed/updatedocker.sh
% chmod +x dockerupdate.sh

Then to update,

~/.firewalla/run/docker/dockerupdate.sh [docker_image_name]

Tested docker images:

• unifi
• homebridge

You will need to adjust this script a bit to use it on something other than a firewalla.