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introduce proxy_alternative_upstream_name Nginx var to differentiate canary requests

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This commit is contained in:
Elvin Efendi 2019-06-28 14:02:50 -04:00
parent 17d99c4aba
commit 8b208cac93
3 changed files with 7 additions and 3 deletions
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6
rootfs/etc/nginx/lua/balancer.lua
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@ -198,8 +198,10 @@ local function get_balancer()
end
if route_to_alternative_balancer(balancer) then
local alternative_balancer = balancers[balancer.alternative_backends[1]]
return alternative_balancer
local alternative_backend_name = balancer.alternative_backends[1]
ngx.var.proxy_alternative_upstream_name = alternative_backend_name
return balancers[alternative_backend_name]
end
return balancer