summaryrefslogtreecommitdiff
path: root/hetzner-ddns.sh
diff options
context:
space:
mode:
authorDavid Vazgenovich Shakaryan <dvshakaryan@gmail.com>2023-03-24 00:33:09 -0700
committerDavid Vazgenovich Shakaryan <dvshakaryan@gmail.com>2023-03-24 00:33:09 -0700
commit9ef2d8b2721cc691af1f9aef09e86ac8d40ada09 (patch)
treebd8116bc90fd2ee2e217bf632b02f1cac31360c6 /hetzner-ddns.sh
parentf2a41436c916b7763057e848b66a0158c6846ff5 (diff)
downloadhetzner-ddns-9ef2d8b2721cc691af1f9aef09e86ac8d40ada09.tar.gz
hetzner-ddns-9ef2d8b2721cc691af1f9aef09e86ac8d40ada09.tar.xz
remove extensionHEADmaster
Diffstat (limited to 'hetzner-ddns.sh')
-rwxr-xr-xhetzner-ddns.sh68
1 files changed, 0 insertions, 68 deletions
diff --git a/hetzner-ddns.sh b/hetzner-ddns.sh
deleted file mode 100755
index 5e6de74..0000000
--- a/hetzner-ddns.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env bash
-#
-# Copyright 2022 David Vazgenovich Shakaryan
-#
-# HETZNER_TOKEN=<token> hetzner-ddns.sh <domain>
-# HETZNER_TOKEN_FILE=/path/to/token hetzner-ddns.sh <domain>
-# systemctl enable --now "hetzner-ddns@$(systemd-escape <domain>).timer"
-
-IP_RESOLVER='https://ifconfig.co'
-TARGET="${1}"
-
-shopt -s extglob
-
-die() {
- [[ -n "${@}" ]] && echo "${@}" >&2
- exit 1
-}
-
-hetzcurl() {
- curl -sfH "Auth-API-Token: ${HETZNER_TOKEN}" \
- "https://dns.hetzner.com/api/v1/${1}" \
- "${@:2}"
-}
-
-if [[ -z "${HETZNER_TOKEN}" ]] && [[ -n "${HETZNER_TOKEN_FILE}" ]]; then
- [[ -f "${HETZNER_TOKEN_FILE}" ]] || die 'Specified token file' \
- "(${HETZNER_TOKEN_FILE}) does not exist"
- HETZNER_TOKEN="$(<"${HETZNER_TOKEN_FILE}")"
-fi
-[[ -n "${HETZNER_TOKEN}" ]] || die 'Missing token'
-
-ip="$(curl -sf4 "${IP_RESOLVER}")" || die 'IP lookup failed'
-
-zone_re="${TARGET}"
-while [[ "${zone_re}" =~ ^([^\\]*)\.(.*)$ ]]; do
- zone_re="(${BASH_REMATCH[1]}\\.)?${BASH_REMATCH[2]}"
-done
-
-res="$(hetzcurl "zones")" || die 'Zones lookup failed'
-IFS='|' read zone_id zone_name < <(jq -er --arg re "${zone_re}" \
- '[.zones[] | select(.name | test("\\A" + $re + "\\z"))] |
- if . == [] then (null | halt_error) else . end |
- max_by(.name | length) | [.id, .name] | join("|")' \
- <<< "${res}") || die 'Zone not found'
-rec_name="${TARGET%%?(.)${zone_name}}"
-rec_name="${rec_name:-@}"
-
-res="$(hetzcurl "records?zone_id=${zone_id}")" || die 'Records lookup failed'
-rec_id="$(jq -er --arg name "${rec_name}" \
- 'first(.records[] | select(.type == "A" and .name == $name)) | .id' \
- <<< "${res}")" || die 'Record not found'
-
-res="$(hetzcurl "records/${rec_id}")" || die 'Record lookup failed'
-old_ip="$(jq -r '.record.value' <<< "${res}")"
-
-if [[ "${old_ip}" == "${ip}" ]]; then
- echo "IP unchanged from ${ip}"
- exit
-fi
-
-data="$(jq -c --arg ip "${ip}" \
- '.record | {zone_id, type, name, value: $ip }' <<< "${res}")"
-res="$(hetzcurl "records/${rec_id}" \
- -H 'Content-Type: application/json' \
- -X PUT -d "${data}")" || die 'Record update failed'
-new_ip="$(jq -r '.record.value' <<< "${res}")"
-
-echo "IP changed from ${old_ip} to ${new_ip}"