packer: Send packerConfig into PostProcessors

packer/build.go

@@ -121,7 +121,8 @@ func (b *coreBuild) Prepare() (err error) {
 	// Prepare the post-processors
 	for _, ppSeq := range b.postProcessors {
 		for _, corePP := range ppSeq {
-			if err = corePP.processor.Configure(corePP.config); err != nil {
+			err = corePP.processor.Configure(corePP.config, packerConfig)
+			if err != nil {
 				return
 			}
 		}

packer/build_test.go

@@ -59,7 +59,7 @@ func TestBuild_Prepare(t *testing.T) {
 	corePP := build.postProcessors[0][0]
 	pp := corePP.processor.(*TestPostProcessor)
 	assert.True(pp.configCalled, "config should be called")
-	assert.Equal(pp.configVal, []interface{}{42}, "config should have right value")
+	assert.Equal(pp.configVal, []interface{}{42, packerConfig}, "config should have right value")
 }
 
 func TestBuild_Prepare_Twice(t *testing.T) {