ingress/install.sh

#!/usr/bin/env bash
set -euo pipefail

##
# Source Code
# We store all initial configs in the /srv location
cd /srv
# Clone if not yet cloned
if [ ! -d .git ]; then
  git clone --depth 1 https://code.tjo.space/tjo-cloud/ingress.git .
else
  git pull
fi

##
# Metadata
SERVICE_NAME="ingress.tjo.cloud"
SERVICE_VERSION="$(git describe --tags --always --dirty)"
CLOUD_REGION="$(hostname -s)"

SERVICE_ACCOUNT_USERNAME=$(jq -r ".service_account.username" /etc/tjo.cloud/meta.json)
SERVICE_ACCOUNT_PASSWORD=$(jq -r ".service_account.password" /etc/tjo.cloud/meta.json)

##
# Dependencies
apt update -y

apt install -y \
  gpg \
  git \
  nginx \
  nginx-extras \
  libnginx-mod-http-geoip2 \
  libnginx-mod-stream-geoip2

# Grafana Alloy
mkdir -p /etc/apt/keyrings/
wget -q -O - https://apt.grafana.com/gpg.key | gpg --dearmor >/etc/apt/keyrings/grafana.gpg
echo "deb [signed-by=/etc/apt/keyrings/grafana.gpg] https://apt.grafana.com stable main" >/etc/apt/sources.list.d/grafana.list
apt update -y
apt install -y alloy

# Tailscale
curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/noble.noarmor.gpg >/usr/share/keyrings/tailscale-archive-keyring.gpg
curl -fsSL https://pkgs.tailscale.com/stable/ubuntu/noble.tailscale-keyring.list >/etc/apt/sources.list.d/tailscale.list
apt update -y
apt install -y tailscale

##
# Ensure services are enabled
systemctl enable --now nginx alloy tailscaled

##
# Configure Alloy
cp -r root/etc/alloy/* /etc/alloy/
cp -r root/etc/default/alloy /etc/default/alloy
# Set Attributes
ATTRIBUTES=""
ATTRIBUTES+="service.name=${SERVICE_NAME},"
ATTRIBUTES+="service.version=${SERVICE_VERSION},"
ATTRIBUTES+="cloud.region=${CLOUD_REGION}"
echo "OTEL_RESOURCE_ATTRIBUTES=${ATTRIBUTES}" >>/etc/default/alloy
# Set Credentials
{
  echo "ALLOY_USERNAME=${SERVICE_ACCOUNT_USERNAME}"
  echo "ALLOY_PASSWORD=${SERVICE_ACCOUNT_PASSWORD}"
} >>/etc/default/alloy
systemctl reload alloy

##
# Configure Tailscale
tailscale up \
  --ssh=true \
  --accept-routes=true \
  --accept-dns=false \
  --advertise-tags="tag:ingress-tjo-cloud" \
  --hostname="$(hostname -f | sed 's/\./-/g')"

##
# Configure NGINX
cp assets/dbip-city-lite-2023-07.mmdb /var/geoip.mmdb
cp -r root/etc/nginx/* /etc/nginx/
systemctl reload nginx