caddy: add snippets file

.gitignore

@@ -10,6 +10,11 @@
 /etc/*
 !/etc/zio/
 
+# /etc/caddy/
+!/etc/caddy/
+/etc/caddy/*
+!/etc/caddy/snippets.caddyfile
+
 # /etc/skel/
 !/etc/skel/
 /etc/skel/*

etc/caddy/snippets.caddyfile

@@ -0,0 +1,20 @@
+(cors) {
+    @origin header Origin {args.0}
+	header @origin Access-Control-Allow-Origin "{args.0}"
+    header @origin Access-Control-Request-Method GET
+}
+
+(nobots) {
+    respond /robots.txt 200 {
+        body "User-agent: *
+Disallow: /"
+        close
+    }
+}
+
+(tls-cf) {
+    tls {
+        dns cloudflare {args.0}
+        resolvers 1.1.1.1
+    }
+}