#!/usr/bin/env bash
#
# A family status page for your homelab with Uptime Kuma
# https://www.zadran.net/guides/family-status-page-uptime-kuma
# Generated from the guide, last updated 2026-10-13.
#
# NO WARRANTY. This script is provided as is. You are responsible for
# understanding what it does before running it, and for the consequences.
# Take a backup first. See https://www.zadran.net/disclaimer
#
# Destructive steps are left commented out on purpose -- uncomment them
# only once you have understood what they do.
#
# Where the guide writes a file with <<'EOF' and your values are in it,
# this script uses <<EOF so that they expand. Every other $, ` and \
# gets a backslash, so the rest comes out exactly as the guide shows it.

set -euo pipefail

# ---- Set these for your environment ----
# The free IP you give the new container
KUMA_IP='192.168.1.50'
# Any number not already used in your Proxmox
CTID='150'
# Usually your router
GATEWAY='192.168.1.1'
# Secret: anyone who knows it reads your alerts
NTFY_TOPIC='myhome-alerts-3f9a1c2b7e4d'
# The code at the end of your ping URL
HC_UUID='your-check-uuid'

pveam update
TPL=$(pveam available --section system | awk '/debian-13-standard.*_amd64/ {print $2}' | sort -V | tail -1)
echo "Downloading: $TPL"
pveam download local "$TPL"

TPL=$(ls /var/lib/vz/template/cache/ | grep 'debian-13-standard.*_amd64' | sort -V | tail -1)

pct create ${CTID} local:vztmpl/$TPL \
  --hostname uptime \
  --cores 2 --memory 1024 --swap 512 \
  --rootfs local-lvm:8 \
  --net0 name=eth0,bridge=vmbr0,ip=${KUMA_IP}/24,gw=${GATEWAY} \
  --nameserver ${GATEWAY} \
  --unprivileged 1 --features nesting=1,keyctl=1 \
  --onboot 1

pct start ${CTID}
pct status ${CTID}
pct exec ${CTID} -- passwd

pct exec ${CTID} -- bash -c "apt update && apt full-upgrade -y && apt install -y curl ca-certificates && curl -fsSL https://get.docker.com | sh"
pct exec ${CTID} -- docker version --format '{{.Server.Version}}'

pct enter ${CTID}

mkdir -p /opt/uptime-kuma
cat > /opt/uptime-kuma/compose.yaml <<'EOF'
services:
  uptime-kuma:
    image: louislam/uptime-kuma:2
    container_name: uptime-kuma
    restart: unless-stopped
    ports:
      - "80:3001"
    volumes:
      - ./data:/app/data
EOF
cd /opt/uptime-kuma && docker compose up -d
sleep 20
docker ps --format '{{.Names}}  {{.Status}}'

echo "myhome-alerts-$(openssl rand -hex 6)"

curl -H "Title: Homelab test" -d "Hello from my server" ntfy.sh/${NTFY_TOPIC}

cat > /etc/cron.d/healthchecks-kuma <<EOF
*/5 * * * * root curl -fsS -m 10 -o /dev/null http://${KUMA_IP}/ && curl -fsS -m 10 --retry 3 -o /dev/null https://hc-ping.com/${HC_UUID}
EOF

pct stop ${CTID}

pct start ${CTID}