Caddy server v2: reverse proxy config json for multiple virtual hosts

caddy2_reverse_proxy.json

{
	"apps": {
		"http": {
			"servers": {
				"example": {
					"listen": ["127.0.0.1:80"],
					"routes": [
						{
							"match":[{"host":["a.myhost.com"]}],
							"handle": [
								{
									"handler": "reverse_proxy",
									"upstreams": [
										{
											"host": "http://localhost:8080"
										}
									]
								}
							]
						},
						{
							"match":[{"host":["b.myhost.com"]}],
							"handle": [
								{
									"handler": "reverse_proxy",
									"upstreams": [
										{
											"host": "http://localhost:3000" 
										}
									]
								}
							]
						}
					],
					"automatic_https":{
						"disable": true
					}
				}
			}
		}
	}
}