all: eliminate usage of global ProxyLogger

So setting up logging for ctrld binary and ctrld packages could be done
more easily, decouple the required setup for interactive vs daemon
running.

This is the first step toward replacing rs/zerolog libary with a
different logging library.

config_internal_test.go

@@ -1,6 +1,7 @@
 package ctrld
 
 import (
+	"context"
 	"net/url"
 	"testing"
 
@@ -36,10 +37,10 @@ func TestUpstreamConfig_SetupBootstrapIP(t *testing.T) {
 		t.Run(tc.name, func(t *testing.T) {
 			// Enable parallel tests once https://github.com/microsoft/wmi/issues/165 fixed.
 			// t.Parallel()
-			tc.uc.Init()
-			tc.uc.SetupBootstrapIP()
+			tc.uc.Init(context.Background())
+			tc.uc.SetupBootstrapIP(context.Background())
 			if len(tc.uc.bootstrapIPs) == 0 {
-				t.Log(defaultNameservers())
+				t.Log(defaultNameservers(context.Background()))
 				t.Fatalf("could not bootstrap ip: %s", tc.uc.String())
 			}
 		})
@@ -355,7 +356,7 @@ func TestUpstreamConfig_Init(t *testing.T) {
 		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			tc.uc.Init()
+			tc.uc.Init(context.Background())
 			tc.uc.uid = "" // we don't care about the uid.
 			assert.Equal(t, tc.expected, tc.uc)
 		})
@@ -497,7 +498,7 @@ func TestUpstreamConfig_IsDiscoverable(t *testing.T) {
 		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			tc.uc.Init()
+			tc.uc.Init(context.Background())
 			if got := tc.uc.IsDiscoverable(); got != tc.discoverable {
 				t.Errorf("unexpected result, want: %v, got: %v", tc.discoverable, got)
 			}