#!/bin/bash
# Joins the remaining 19 nodes to the k3s cluster (planck002 = first server).
# Usage: K3S_TOKEN=<node-token> ./scripts/k3s-join.sh
set -euo pipefail

SERVER_URL="https://192.168.0.110:6443"   # planck002
SERVERS=(planck003 planck004)
AGENTS=(planck001 planck005 planck006 planck007 planck008 planck009 planck010
        planck011 planck012 planck013 planck014 planck015 planck016
        planck017 planck018 planck019 planck020)

[ -n "${K3S_TOKEN:-}" ] || { echo "K3S_TOKEN env required"; exit 1; }
export K3S_TOKEN

join_server() {
    ssh -o BatchMode=yes adamcarr@$1.local \
        "curl -sfL https://get.k3s.io | sudo K3S_TOKEN='$K3S_TOKEN' sh -s - server --server '$SERVER_URL' --write-kubeconfig-mode 644" \
        2>&1 | grep -viE "rptl.io|newuser" | tail -1
    echo "joined server: $1"
}

join_agent() {
    ssh -o BatchMode=yes adamcarr@$1.local \
        "curl -sfL https://get.k3s.io | sudo K3S_URL='$SERVER_URL' K3S_TOKEN='$K3S_TOKEN' sh -s -" \
        2>&1 | grep -viE "rptl.io|newuser" | tail -1
    echo "joined agent: $1"
}

for s in "${SERVERS[@]}"; do join_server "$s"; done
for a in "${AGENTS[@]}"; do join_agent "$a" & done
wait
echo "all join commands issued"