make cloudflare_dns generic

services/cloudflare_update_dns

@@ -2,9 +2,12 @@
 
 set -euo pipefail
 
-ZONE_ID="$(cat .var/zone_id)"
-DNS_RECORD="$(cat .var/dns_record)"
-CACHED_PUBLIC_IP="$(cat .var/cached_public_ip)"
+ZONE_ID=""
+ZONE_ID_FILE=""
+DNS_RECORD=""
+DNS_RECORD_FILE=""
+DOMAIN=""
+CACHED_PUBLIC_IP=""
 AUTHORIZATION="$(cat .var/bearer)"
 
 IP_URL="ifconfig.me/ip"
@@ -50,10 +53,47 @@ function check_new_ip() {
 		info "Public IP has changed from ${CACHED_PUBLIC_IP} to ${new_ip}. Updating records..."
     "${SEND_TELEGRAM}" "Public IP has changed from ${CACHED_PUBLIC_IP} to ${new_ip}. Updating records..."
     CACHED_PUBLIC_IP="${new_ip}"
-    echo "${new_ip}" > .var/cached_public_ip
+    echo "${new_ip}" > ${PUBLIC_IP_FILE}
 	fi
 }
 
+# Parse command-line arguments
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -z|--zone-id-file)
+      ZONE_ID_FILE="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -d|--dns-record-file)
+      DNS_RECORD_FILE="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    --domain)
+      DOMAIN="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -*|--*)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+    *)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+DNS_RECORD=$(cat "${DNS_RECORD_FILE}")
+ZONE_ID=$(cat "${ZONE_ID_FILE}")
+PUBLIC_IP_FILE=".var/${DOMAIN}_cached_ip"
+if [ -e "$PUBLIC_IP_FILE" ]; then
+    CACHED_PUBLIC_IP=$(cat "${PUBLIC_IP_FILE}")
+else
+    touch "${PUBLIC_IP_FILE}"
+fi
 check_internet_access
 check_new_ip
 
@@ -64,7 +104,7 @@ curl_answer="$(curl --request PATCH \
   --silent \
   --data '{
   "content": "'${CACHED_PUBLIC_IP}'",
-  "name": "tylencloud.com",
+  "name": "'${DOMAIN}'",
   "proxied": false,
   "type": "A",
   "comment": "Main Record",