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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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2
internal/ingress/controller/config/config.go
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@ -50,7 +50,7 @@ const (
brotliTypes = "application/xml+rss application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/javascript text/plain text/x-component"
logFormatUpstream = `%v - [$the_real_ip] - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" $request_length $request_time [$proxy_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id`
logFormatUpstream = `%v - [$the_real_ip] - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" $request_length $request_time [$proxy_upstream_name] [$proxy_alternative_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id`
logFormatStream = `[$time_local] $protocol $status $bytes_sent $bytes_received $session_time`

6
rootfs/etc/nginx/lua/balancer.lua
View file

@ -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

2
rootfs/etc/nginx/template/nginx.tmpl
View file

@ -1094,6 +1094,8 @@ stream {
set $proxy_upstream_name "{{ buildUpstreamName $location }}";
set $proxy_host $proxy_upstream_name;
set $proxy_alternative_upstream_name "";
{{ if (or $location.ModSecurity.Enable $all.Cfg.EnableModsecurity) }}
{{ if not $all.Cfg.EnableModsecurity }}
modsecurity on;