Add fake filesystem for test to avoid temporal files on the local filesystem

internal/file/structure.go

@@ -0,0 +1,26 @@
+package file
+
+const (
+	// AuthDirectory default directory used to store files
+	// to authenticate request
+	AuthDirectory = "/etc/ingress-controller/auth"
+
+	// DefaultSSLDirectory defines the location where the SSL certificates will be generated
+	// This directory contains all the SSL certificates that are specified in Ingress rules.
+	// The name of each file is <namespace>-<secret name>.pem. The content is the concatenated
+	// certificate and key.
+	DefaultSSLDirectory = "/ingress-controller/ssl"
+)
+
+var (
+	directories = []string{
+		"/etc/nginx/template",
+		"/run",
+		DefaultSSLDirectory,
+		AuthDirectory,
+	}
+
+	files = []string{
+		"/run/nginx.pid",
+	}
+)