Updated Docker Compose (docker-update branch)

[alxcost]

Hello folks,

This is a continuation of #43, but this time to the docker-update branch.

I've also updated the step for installing Docker Compose, which seems to be a bit tricky...

The new Docker Compose plugin can be in FIVE different directories, quoting from their README:

You can download Docker Compose binaries from the release page on this repository.
Rename the relevant binary for your OS to docker-compose and copy it to $HOME/.docker/cli-plugins
Or copy it into one of these folders to install it system-wide:
/usr/local/lib/docker/cli-plugins OR /usr/local/libexec/docker/cli-plugins
/usr/lib/docker/cli-plugins OR /usr/libexec/docker/cli-plugins
From: https://github.com/docker/compose

Which makes this a bit harder than it should.
So I ended up adding a little section to install_turnkey.sh that checks which of these possible directories exists, and install Docker Compose there. If none of the directories are found, it fallbacks to the user's home directory.

compose_dir=""

# Check where Docker Compose could be installed
for dir in \
        "/usr/lib/docker/cli-plugins"\
        "/usr/local/lib/docker/cli-plugins" \
        "/usr/local/libexec/docker/cli-plugins" \
        "/usr/libexec/docker/cli-plugins"
do
    echo "Checking if Docker Compose can be installed on $dir"
    if [ -d "$dir" ]; then
        echo "Docker compose can be installed on $dir"
        compose_dir=$dir
        break
    fi
done

# Fallback to user's home directory
if [ -z "$compose_dir" ]; then
    compose_dir=$HOME/.docker/cli-plugins
    echo "System-wide directory for Docker CLI plugins was not found. Defaulting to home directory at $compose_dir"
fi

sudo curl -L https://github.com/docker/compose/releases/download/2.29.1/docker-compose-`uname -s`-`uname -m` -o $compose_dir/docker-compose > /dev/null 2>&1
sudo chmod +x $compose_dir/docker-compose
echo "Done"