}
	return &envoy{
		ProxyConfig: cfg,
		extraArgs:   args,
	}
}

// splitComponentLog breaks down an argument string into a log level (ie "info") and component log levels (ie "misc:error").
// This allows using a single log level API, with the same semantics as Istio's logging, to configure Envoy which
// has two different settings
func splitComponentLog(level string) (string, []string) {
	levels := strings.Split(level, ",")

		{"misc:warn,info", "info", []string{"misc:warn"}},
		{"misc:warn,info,upstream:debug", "info", []string{"misc:warn", "upstream:debug"}},
	}
	for _, tt := range cases {
		t.Run(tt.input, func(t *testing.T) {
			l, c := splitComponentLog(tt.input)
			if l != tt.log {
				t.Errorf("expected log level %v, got %v", tt.log, l)
			}
			if !reflect.DeepEqual(c, tt.components) {
				t.Errorf("expected component log level %v, got %v", tt.components, c)