bug: the tranlsation of route with plugin_config is pathological

[tokers]

Issue description

apisix-ingress-controller/pkg/kube/translation/apisix_route.go

Lines 534 to 539 in de52243

	if len(pluginMap) > 0 {
	pluginConfigName := apisixv1.ComposePluginConfigName(ar.Namespace, backend.ServiceName)
	route.PluginConfigId = id.GenID(pluginConfigName)
	pluginConfig.ID = route.PluginConfigId
	pluginConfig.Name = pluginConfigName
	pluginConfig.Plugins = pluginMap

The code snippet pasted above has two problems:

1). The plugin config id generation should not rely on the name of backend service name, which will cause all routes with the same backend generated with the same plugin config id.
2). add the plugin_config id reference even if users don't specify the plugin config on the ApisixRoute explicitly

Environment

• your apisix-ingress-controller version (output of apisix-ingress-controller version --long):
• your Kubernetes cluster version (output of kubectl version):
• if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (uname -a):

Minimal test code / Steps to reproduce

Nope.

Actual result

Nope.

Error log

Nope.

Expected result

No response

[tao12345666333]

cc @neverCase

[neverCase]

ok, got it.

[tao12345666333]

#845 has been merged. I will close this issue. If you have any question, feel free to reopen it.