caddy/caddytest/integration/caddyfile_adapt/global_options_log_and_site.txt

{
	log {
		output file caddy.log
		include some-log-source
		exclude admin.api admin2.api
	}
	log custom-logger {
		output file caddy.log
		level WARN
		include custom-log-source
	}
}

:8884 {
	log {
		format json
		output file access.log
	}
}
----------
{
	"logging": {
		"logs": {
			"custom-logger": {
				"writer": {
					"filename": "caddy.log",
					"output": "file"
				},
				"level": "WARN",
				"include": [
					"custom-log-source"
				]
			},
			"default": {
				"writer": {
					"filename": "caddy.log",
					"output": "file"
				},
				"include": [
					"some-log-source"
				],
				"exclude": [
					"admin.api",
					"admin2.api",
					"custom-log-source",
					"http.log.access.log0"
				]
			},
			"log0": {
				"writer": {
					"filename": "access.log",
					"output": "file"
				},
				"encoder": {
					"format": "json"
				},
				"include": [
					"http.log.access.log0"
				]
			}
		}
	},
	"apps": {
		"http": {
			"servers": {
				"srv0": {
					"listen": [
						":8884"
					],
					"logs": {
						"default_logger_name": "log0"
					}
				}
			}
		}
	}
}