portdevctl

#!/bin/bash

# Function to display usage
usage() {
    echo "Usage: $0 <container_name> <technology> <volume> <additional_ports> <template_name>"
    echo "Example: $0 my-container nodejs /path/to/volume 3001,3002 none"
    echo "         $0 my-container any /path/to/volume 4000 next-js"
    exit 1
}

# Check if the correct number of arguments is provided
if [ "$#" -ne 5 ]; then
    usage
fi

# Assign arguments to variables
container_name="$1"
technology="$2"
volume="$3"
additional_ports="$4"
template_name="$5"

# Generate image name
image_name="$container_name-$(head /dev/urandom | tr -dc 'a-z0-9' | fold -w 8 | head -n 1)"

# Build Docker image
docker buildx build --no-cache --build-arg ADDITIONAL_PACKAGES="$technology" --build-arg ADDITIONAL_PORT="$additional_ports" --build-arg TEMPLATE_NAME="$template_name" -f /usr/local/share/devbox/dockerfile /usr/local/share/devbox/ -t "$image_name"

# Function to check if a port is in use
is_port_in_use() {
    netstat -ltn | grep -q ":$1"
}

# Find the first available port starting from 8080
port=8080
while is_port_in_use $port; do
    port=$((port+1))
done

# Parse additional ports from the fourth argument
IFS=',' read -ra additional_ports_array <<< "$additional_ports"
for i in "${!additional_ports_array[@]}"; do
    while is_port_in_use "${additional_ports_array[$i]}"; do
        additional_ports_array[$i]=$((additional_ports_array[$i]+1))
    done
done

# Join the available ports into a comma-separated string
ports_str="$port"
for additional_port in "${additional_ports_array[@]}"; do
    ports_str="$ports_str,$additional_port"
done

echo "Launching $container_name on ports $ports_str and mounting $volume"

# Prepare -p options for Docker run
port_mappings="-p $port:8080"
for additional_port in "${additional_ports_array[@]}"; do
    port_mappings="$port_mappings -p $additional_port:$additional_port"
done

# Run the Docker container with the available ports
docker run --name "$container_name" $port_mappings -v "$volume:/home/coder" --privileged -d "$image_name" "$template_name"

echo "Container $container_name started successfully with port mapping $port_mappings."