[GitHub] [apisix] tokers commented on issue #2303: Proposal: inptroduce traffic split plugin

[GitBox <gi...@apache.org>]

tokers commented on issue #2303:
URL: https://github.com/apache/apisix/issues/2303#issuecomment-703507376


   > I like this proposal very much and think it will be the final form.	
   > 
   > This function can be divided into two parts:
   > 
   > 1.label &&  selector；
   > 
   > 2. A grayscale upgrade configuration;
   > 
   > These two things can be done simultaneously.
   > 
   > 
   > 
   > 1. Implement label && selector to replace the current upstream_id binding relationship;
   > 
   > 2. The configuration method of grayscale upgrade can be realized by a plug-in version first. 
   > 
   > After waiting for the label function to be implemented, the gray scale capability is migrated to the native implementation in the apisix object.
   > 
   > 
   > 
   > The plug-in configuration is similar to this:
   > 
   > 
   > 
   > ```json
   > 
   > "plugins":{
   > 
   > 	"routex": {
   > 
   > 		"rules": [
   > 
   > 			{
   > 
   > 				"match": [
   > 
   > 			        {
   > 
   > 			            "vars": [
   > 
   > 			                [ "arg_user_id", ">=", 13],
   > 
   > 			                [ "arg_user_id", "<=", 133]
   > 
   > 			            ]
   > 
   > 			        },
   > 
   > 			        {
   > 
   > 			        	"vars": [
   > 
   > 			        		[ "arg_user_id", "==", 222]
   > 
   > 			        	]
   > 
   > 			        }
   > 
   > 			    ],
   > 
   > 			    "upstreams": [
   > 
   > 			        {
   > 
   > 			            "upstream_id": 3,
   > 
   > 			            "weight": 20
   > 
   > 			        },
   > 
   > 			        {
   > 
   > 			            "upstream_id": 5,
   > 
   > 			            "weight": 80
   > 
   > 			        }
   > 
   > 			    ]
   > 
   > 			}
   > 
   > 		]    
   > 
   > 	}
   > 
   > }
   > 
   > ```
   
   We need further discussion after @moonming and @membphis have some time to analyze this proposal.


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