Switch to a multihost/home-manager setup

modules/cloudflare-ddns/ddns.sh

@@ -0,0 +1,33 @@
+#!@bash@/bin/bash
+
+source /run/secrets/main.env
+
+cache=/var/lib/cloudflare-ddns/old_ip
+IP=$(@curl@/bin/curl -s 'https://api.ipify.org')
+arr=("" "git." "www." "acs.")
+
+if [[ -f "$cache" ]]; then
+  old_ip=$(cat "$cache")
+else
+  old_ip=""
+fi
+
+if [[ "$IP" != "$old_ip" ]]; then
+  for sub in "${arr[@]}"; do
+    RECORD_ID=$(@curl@/bin/curl -s -X GET \
+      "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records" \
+      -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
+      -H "Content-Type: application/json" \
+      | @jq@/bin/jq -r ".result[] | select(.name==\"${sub}syedm.dev\" and .type==\"A\") | .id")
+
+    if [ -n "$RECORD_ID" ]; then
+      @curl@/bin/curl -s -X PUT \
+        "https://api.cloudflare.com/client/v4/zones/$ZONE_ID/dns_records/$RECORD_ID" \
+        -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
+        -H "Content-Type: application/json" \
+        -d "{\"type\":\"A\",\"name\":\"${sub}syedm.dev\",\"content\":\"$IP\",\"ttl\":3600,\"proxied\":false}"
+    fi
+  done
+
+  echo "$IP" > "$cache"
+fi