proposal: need an interface or function to translate old resource objects

[AlinsRan]

backgroup

Ref:

• bug: when service port change,the ingress can't handle correctly #1165
• fix : The ingress backend is modified several times, resulting in residual update events #1040 Not completely fix, it has redundant upstream objects.

At present, for ApisixRoute Ingress ... resource update, we use the TranslateUpstream method to translate old objects. This method requires parsing the latest services to build objects, resulting in data inconsistency.

Due to the wrong construction of upstream objects, upstream cannot be deleted, resulting in object redundancy.

proposal

Implement an interface or function for related resources

1. Get route object from cache.
2. Using route to construct Upstream and PluginConfig.
3. Compare and write APISIX.

dependencies

• ApisixRoute fix: translate error of old ApisixRoute #1191
• Ingress fix: translate error of old Ingress #1193
• Gateway
  • HTTPRoute
  • ...

[AlinsRan]

#1050 Or we can realize the function of regularly cleaning up redundant objects in upstream.

[tao12345666333]

Using route to construct Upstream and PluginConfig.

why we need this one?

[AlinsRan]

Using route to construct Upstream and PluginConfig.

why we need this one?

Because the route object contains upstream_ id and plugin_id. For delete, we only need these fields