Mastering Service Mesh

Canary deployment

Canary deployment is related to dark launches or friends-and-family testing, in which only a few people are given access to new features without their knowledge. Let's apply the principle of traffic shifting to a canary deployment:

1. You can configure a percentage of traffic for each subset using Consul's service-splitter primitive. An example of a service-splitter can be seen in the following code, in which 99% of the traffic is routed to subset v1, while the other 1% of the traffic is routed to subset v2:

# Script: 14-service-splitter-canary.hclkind = "service-splitter",name = "api"splits = [  {    weight = 99,    service_subset = "v1"  },  {    weight = 1,    service_subset = "v2"  }]

2. Create service-splitter for the Consul service ...