uninstall.sh

#!/bin/bash

NETWORK_NAME="prem-gateway"

volume_exists() {
    local volume_name="$1"
    docker volume ls -q | grep -q "^$volume_name$"
    return $?
}

# Ask if the user wants a "yes to all" approach.
read -p "Do you want to say 'yes' to all and proceed with a full uninstall without further confirmations? (y/n): " yes_to_all

# Helper function to check if yes to all was selected.
should_proceed() {
    if [ "$yes_to_all" == "y" ]; then
        echo "y"
    else
        read -p "$1 (y/n): " response
        echo "$response"
    fi
}

# Stop and remove containers and their associated volumes on the network
containers_to_remove=$(docker network inspect $NETWORK_NAME --format '{{range .Containers}}{{.Name}} {{end}}')
if [[ ! -z "$containers_to_remove" ]]; then
    docker stop $containers_to_remove
    
    # Capture the named volumes of the containers
    volumes_to_remove=()
    for container in $containers_to_remove; do
        container_volumes=$(docker inspect $container --format '{{range .Mounts}}{{if .Name}}{{.Name}}{{end}}{{end}}')
        for volume in $container_volumes; do
            volumes_to_remove+=($volume)
        done
    done
    
    docker rm -v $containers_to_remove
    
    # Remove the captured named volumes
    for volume in "${volumes_to_remove[@]}"; do
        if volume_exists "$volume"; then
            docker volume rm "$volume"
        fi
    done

fi

# Optionally remove the network itself
remove_network=$(should_proceed "Do you want to remove the network $NETWORK_NAME?")
if [ "$remove_network" == "y" ]; then
    docker network rm $NETWORK_NAME
fi

# Check if the datadir should be removed.
ORIGINAL_HOME=$(eval echo ~$SUDO_USER)
remove_datadir=$(should_proceed "Do you want to remove the datadir located in $ORIGINAL_HOME/prem? (This deletes data!)")
if [ "$remove_datadir" == "y" ]; then
    rm -rf $ORIGINAL_HOME/prem
fi

echo "Uninstallation completed!"