:8443 {
	tls internal {
		on_demand
	}
}
----------
{
	"apps": {
		"http": {
			"servers": {
				"srv0": {
					"listen": [
						":8443"
					],
					"tls_connection_policies": [
						{}
					]
				}
			}
		},
		"tls": {
			"automation": {
				"policies": [
					{
						"issuers": [
							{
								"module": "internal"
							}
						],
						"on_demand": true
					}
				]
			}
		}
	}
}