#!/bin/bash
# Rootless docker installation script.

docker_bin=$(realpath $1)

# Silently exit if docker_bin is not empty.
[ ! -z "$(ls -A $docker_bin 2>/dev/null)" ] && exit 0

mkdir -p $docker_bin

# Download docker packages into a tmp dir and extract into docker bin.
echo "Installing rootless docker packages into $docker_bin"

tmp=$(mktemp -d)
cd $tmp
curl -s https://download.docker.com/linux/static/stable/x86_64/docker-24.0.5.tgz --output docker.tgz
curl -s https://download.docker.com/linux/static/stable/x86_64/docker-rootless-extras-24.0.5.tgz --output rootless.tgz

cd $docker_bin
tar zxf $tmp/docker.tgz --strip-components=1
tar zxf $tmp/rootless.tgz --strip-components=1
rm -r $tmp

# Override rootlesskit with our own version based on original rootlesskit v1.1.1
# We need this custom version to have outbound ipv6 address support (https://github.com/EvernodeXRPL/rootlesskit/tree/outbound-addr-support)
curl -fsSL https://github.com/EvernodeXRPL/rootlesskit/releases/download/v1.1.1-evernode-patch1/rootlesskit --output $docker_bin/rootlesskit
chmod +x $docker_bin/rootlesskit

chown -R $(id -u):$(id -g) $docker_bin/*

exit 0