cloudflared: refine config.yml

The config.yml is an example of a tunnel local configuration.
But the cloudlfared treat it as a real config and fails to start.
So to avoid problems let's comment all the statements.

The `url: http://localhost:8000` is not a valid config option.

Additionally add a smale of configuring ingres rules.

The cloudflared.config has missing option token.

Signed-off-by: Sergey Ponomarev <stokito@gmail.com>
(cherry picked from commit b3580a76d8)

net/cloudflared/files/cloudflared.config

@@ -1,6 +1,7 @@
 
 config cloudflared 'config'
 	option enabled '0'
+	option token ''
 	option config '/etc/cloudflared/config.yml'
 	option origincert '/etc/cloudflared/cert.pem'
 	option region ''

net/cloudflared/files/sample_config.yml

@@ -1,3 +1,9 @@
-url: http://localhost:8000
-tunnel: <Tunnel-UUID>
-credentials-file: /etc/cloudflared/<Tunnel-UUID>.json
+#tunnel: <Tunnel-UUID>
+#credentials-file: /etc/cloudflared/<Tunnel-UUID>.json
+#
+#ingress:
+#  - hostname: luci.example.com
+#    service: http://localhost:80
+#  - hostname: ssh.example.com
+#    service: ssh://localhost:22
+#  - service: http_status:404