improve sh

scripts/system/cloudflare--create.sh

@@ -1,5 +1,7 @@
-#!/bin/bash
-curl --request POST \
+#!/usr/bin/env bash
+set -e
+echo "* Creating ${HOSTNAME} CNAME record at CloudFlare"
+CLOUDFLARE_IDENTIFIER=$(curl --request POST \
   --url https://api.cloudflare.com/client/v4/zones/${CLOUDFLARE_ZONE_ID}/dns_records \
   --header "Content-Type: application/json" \
   --header "Authorization: Bearer ${CLOUDFLARE_TOKEN}" \
@@ -9,4 +11,10 @@ curl --request POST \
     "type": "CNAME",
     "proxied": true,
     "ttl": 3600
-  }' | jq -r '.result.id'
+  }' | jq -r '.result.id')
+if [ "${CLOUDFLARE_IDENTIFIER}" == null ]; then
+  echo "CloudFlare integration failure"
+  exit 1
+fi
+echo "CLOUDFLARE_IDENTIFIER=${CLOUDFLARE_IDENTIFIER}" >>${NAMESPACE_FILE}
+echo "[OK] Hostname created @ ${CLOUDFLARE_IDENTIFIER}"