#! /bin/bash

# Configure a swap file

sudo fallocate -l 1G /swapfile

sudo chmod 600 /swapfile

sudo mkswap /swapfile

sudo swapon /swapfile

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

# Add Docker's official GPG key:

sudo apt-get update

sudo apt-get install ca-certificates curl

sudo install -m 0755 -d /etc/apt/keyrings

sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc

sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:

echo \

"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \

$(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \

sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y

# Setup Tailscale

curl -fsSL https://tailscale.com/install.sh | sh && sudo tailscale up --auth-key=tskey-auth-kNrJA7Krsh11CNTRL-DkDvUBggGn7EdinEz8mFn7beRG4yishf

# Join the Docker Swarm

docker swarm join --token SWMTKN-1-5bl3giobmjlic4ly1dv27azvcjqvyvl50o4d04qgvwl4k5she8-by9dtf34zo0wb94br7g1imo1y 100.73.169.56:2377