From a154ee35a56ef5483fb72bf397842274b304fe66 Mon Sep 17 00:00:00 2001
From: Ilya Medvedev <imedvedev@readymag.com>
Date: Tue, 21 Jul 2020 10:21:02 +0300
Subject: [PATCH] init

---
 .gitignore         |  1 +
 README.md          | 11 +++++++++++
 dns-sync.sh        | 21 +++++++++++++++++++++
 dns.config.example |  5 +++++
 4 files changed, 38 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100755 dns-sync.sh
 create mode 100644 dns.config.example

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3fddda9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+dns.config
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..bc888bd
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+# Vercel Dynamic DNS
+
+Script for exposing local server with Vercel DNS. It runs every 15 minutes, checking current IP address and updates DNS records for your domain.
+
+## Installation
+
+1. Download
+2. Move `dns.config.example` into `dns.config`
+3. Edit config
+4. Open cron settings `crontab -e`
+5. Add this line `*/15 * * * * /home/username/vercel-ddns/dns-sync.sh`
diff --git a/dns-sync.sh b/dns-sync.sh
new file mode 100755
index 0000000..eea6a45
--- /dev/null
+++ b/dns-sync.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+source ./dns.config
+
+# 1. Get current IP
+IP=$(curl -s http://whatismyip.akamai.com/)
+echo "$IP"
+
+# 2. Create/update DNS record
+curl -X POST "https://api.vercel.com/v2/domains/$DOMAIN_NAME/records" \
+  -H "Authorization: Bearer $VERCEL_TOKEN" \
+  -H "Content-Type: application/json" \
+  -d '{
+  "name": "'$SUBDOMAIN'",
+  "type": "A",
+  "value": "'$IP'",
+  "ttl": 60
+}'
+
+echo ''
+echo "🎉 Done!"
diff --git a/dns.config.example b/dns.config.example
new file mode 100644
index 0000000..e53e4f9
--- /dev/null
+++ b/dns.config.example
@@ -0,0 +1,5 @@
+# Get token here https://vercel.com/account/tokens
+VERCEL_TOKEN=""
+
+# Your domain/subdomain
+DOMAIN_NAME=""