From bc0ea33555715783d68f2f427b81b50a6d6ba594 Mon Sep 17 00:00:00 2001
From: Bernd Worsch <bernd.worsch@gmail.com>
Date: Sun, 14 Sep 2025 00:48:55 +0200
Subject: [PATCH] feat: script to set up servers at hetzner

---
 scripts/hcloud_new_server.sh | 94 ++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 scripts/hcloud_new_server.sh

diff --git a/scripts/hcloud_new_server.sh b/scripts/hcloud_new_server.sh
new file mode 100644
index 0000000..cd10f15
--- /dev/null
+++ b/scripts/hcloud_new_server.sh
@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+# hcloud_new_server.sh — Add a host to inventory and provision it on Hetzner
+# Usage:
+#   scripts/hcloud_new_server.sh <NAME> [--type cpx11] [--region nbg1] [--role web] [--image ubuntu-24.04] [--user admin]
+#
+# Prereqs:
+#   - age + SOPS installed, with access to decrypt your Hetzner token
+#   - terraform installed
+#   - Python3 + PyYAML (for scripts/new_host.py)
+#
+set -euo pipefail
+
+fail() { echo "❌ $*" >&2; exit 1; }
+ok() { echo "✔ $*"; }
+info() { echo "ℹ $*"; }
+
+# --- Parse args ---
+NAME="${1:-}"
+shift || true
+
+TYPE="cpx21"
+REGION="nbg1"
+ROLE="generic"
+IMAGE="ubuntu-24.04"
+USER="admin"
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --type)   TYPE="$2"; shift 2;;
+    --region) REGION="$2"; shift 2;;
+    --role)   ROLE="$2"; shift 2;;
+    --image)  IMAGE="$2"; shift 2;;
+    --user)   USER="$2"; shift 2;;
+    *) fail "Unknown arg: $1 (usage: scripts/hcloud_new_server.sh <NAME> [--type cpx11] [--region nbg1] [--role web] [--image ubuntu-24.04] [--user admin])";;
+  esac
+done
+
+[[ -n "$NAME" ]] || fail "Missing NAME. Usage: scripts/hcloud_new_server.sh <NAME> [--type ...] ..."
+
+# --- Sanity checks ---
+command -v terraform >/dev/null || fail "terraform not found"
+command -v sops >/dev/null || fail "sops not found"
+command -v python3 >/dev/null || fail "python3 not found"
+python3 -c "import yaml" 2>/dev/null || fail "PyYAML not installed for python3 (pip install pyyaml)"
+
+if [[ ! -f "scripts/new_host.py" ]]; then
+  fail "scripts/new_host.py not found (expected in repo)."
+fi
+
+if [[ ! -f "keys/admin_ssh.pub" ]]; then
+  info "keys/admin_ssh.pub missing. Hetzner will still inject your project key if configured, but you may want to add one."
+fi
+
+# --- Add host to inventory ---
+python3 scripts/new_host.py \
+  --name "$NAME" \
+  --type "$TYPE" \
+  --region "$REGION" \
+  --role "$ROLE" \
+  --image "$IMAGE" \
+  --user "$USER"
+
+ok "Inventory updated: $NAME → inventory/servers.yaml"
+
+# --- Decrypt Hetzner token and apply Terraform ---
+HCLOUD_TOKEN="$(sops -d --extract '["ops"]["hcloud_token"]' inventory/group_vars/secrets.sops.yaml 2>/dev/null || true)"
+[[ -n "$HCLOUD_TOKEN" ]] || fail "Could not decrypt ops.hcloud_token from inventory/group_vars/secrets.sops.yaml. Ensure SOPS_AGE_KEY or keys.txt is set and token exists."
+
+pushd terraform/hetzner >/dev/null
+
+terraform init -upgrade
+export HCLOUD_TOKEN
+terraform apply -auto-approve
+
+# Try to show IP of the created host
+if command -v jq >/dev/null; then
+  IP="$(terraform output -json servers | jq -r --arg n "$NAME" '.[$n] // empty')"
+  if [[ -n "$IP" && "$IP" != "null" ]]; then
+    ok "Server $NAME IPv4: $IP"
+    echo ""
+    echo "SSH quick check (if admin key injected):"
+    echo "  ssh admin@$IP"
+  else
+    info "Could not extract IP for $NAME (jq path empty). Full outputs:"
+    terraform output
+  fi
+else
+  info "jq not found. Terraform outputs:"
+  terraform output
+fi
+
+popd >/dev/null
+
+ok "Provisioning complete."