my-homelab-configs/scripts/restore-drill

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#!/usr/bin/env bash
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
HOMELAB_STATE_DIR="${HOMELAB_STATE_DIR:-${XDG_DATA_HOME:-${HOME}/.local/share}/homelab}"
KUBECONFIG="${KUBECONFIG:-${KUBECONFIG_PATH:-${HOME}/.kube/config}}"
section() {
printf '\n== %s ==\n' "$1"
}
check_file() {
local label="$1"
local path="$2"
printf '%-34s ' "${label}"
if [[ -s "${path}" ]]; then
printf 'ok - %s\n' "${path}"
else
printf 'fail - missing or empty: %s\n' "${path}"
return 1
fi
}
latest_file() {
local directory="$1"
local glob="$2"
find "${directory}" -maxdepth 1 -type f -name "${glob}" -print0 2>/dev/null |
xargs -0 ls -t 2>/dev/null |
sed -n '1p'
}
drill_gitea() {
local backup_dir="${LAB_GITEA_BACKUP_DIR:-/home/jv/backups/gitea}"
local latest
section "Gitea Restore Drill"
latest="$(latest_file "${backup_dir}" 'gitea-*.zip' || true)"
if [[ -z "${latest}" ]]; then
printf 'fail - no Gitea backup archive found in %s\n' "${backup_dir}"
return 1
fi
python3 - "${latest}" <<'PY'
import sys
import zipfile
archive = sys.argv[1]
with zipfile.ZipFile(archive) as handle:
bad = handle.testzip()
if bad:
raise SystemExit(f"fail - corrupt archive member: {bad}")
members = handle.namelist()
if not members:
raise SystemExit("fail - archive is empty")
print(f"ok - archive valid: {archive} ({len(members)} members)")
PY
}
drill_pihole() {
section "Pi-hole Restore Drill"
check_file "adlists" "${REPO_ROOT}/infra/rpi-services/adlists.txt"
check_file "local DNS records" "${REPO_ROOT}/infra/rpi-services/local-dns-records.txt"
check_file "CNAME records" "${REPO_ROOT}/infra/rpi-services/cname-records.txt"
check_file "static DHCP notes" "${REPO_ROOT}/infra/rpi-services/static-dhcp-hosts.txt"
check_file "RPi compose" "${REPO_ROOT}/infra/rpi-services/docker-compose.yml"
check_file "RPi bootstrap" "${REPO_ROOT}/infra/rpi-services/bootstrap.sh"
}
drill_state() {
local backup_dir="${HOMELAB_TOFU_STATE_BACKUP_DIR:-${HOMELAB_STATE_DIR}/tofu-state-backups}"
local latest
section "Jeannie/OpenTofu State Restore Drill"
latest="$(latest_file "${backup_dir}" 'tofu-state-*.tgz' || true)"
if [[ -z "${latest}" ]]; then
printf 'warn - no local OpenTofu state backup archive found in %s\n' "${backup_dir}"
printf 'hint - run ./jeannie state-backup after important changes\n'
return 0
fi
tar -tzf "${latest}" >/dev/null
printf 'ok - state archive can be listed: %s\n' "${latest}"
}
drill_gitops() {
section "GitOps Rebuild Drill"
git -C "${REPO_ROOT}" status --short
git -C "${REPO_ROOT}" rev-parse --verify HEAD >/dev/null
printf 'ok - repository HEAD: %s\n' "$(git -C "${REPO_ROOT}" rev-parse --short HEAD)"
if command -v kubectl >/dev/null 2>&1 && [[ -s "${KUBECONFIG}" ]]; then
kubectl --kubeconfig "${KUBECONFIG}" -n argocd get applications.argoproj.io 2>/dev/null || true
else
printf 'info - kubeconfig unavailable; skipping Argo CD application list\n'
fi
}
usage() {
cat <<'EOF'
Usage: scripts/restore-drill {all|gitea|pihole|state|gitops}
Read-only restore drills. These checks prove that restore inputs exist and can
be inspected, but they do not replace running services or mutate Kubernetes.
EOF
}
main() {
case "${1:-all}" in
all)
drill_gitea
drill_pihole
drill_state
drill_gitops
;;
gitea)
drill_gitea
;;
pihole)
drill_pihole
;;
state)
drill_state
;;
gitops)
drill_gitops
;;
-h | --help | help)
usage
;;
*)
usage >&2
return 2
;;
esac
}
main "$@"