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Feat: canary supports using specific match strategy to match header value.

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This commit is contained in:
Lisheng Zheng 2020-02-19 12:21:08 +08:00
parent 7d52174b51
commit 0b33650bb8
7 changed files with 157 additions and 18 deletions
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14
rootfs/etc/nginx/lua/balancer.lua
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@ -187,14 +187,22 @@ local function route_to_alternative_balancer(balancer)
local header = ngx.var["http_" .. target_header]
if header then
if traffic_shaping_policy.headerValue
and #traffic_shaping_policy.headerValue > 0 then
and #traffic_shaping_policy.headerValue > 0 then
if traffic_shaping_policy.headerValue == header then
return true
end
elseif traffic_shaping_policy.headerPattern
and #traffic_shaping_policy.headerPattern > 0 then
local m, err = ngx.re.match(header, traffic_shaping_policy.headerPattern)
if m then
return true
elseif err then
ngx.log(ngx.ERR, "error when matching canary-by-header-pattern: '",
traffic_shaping_policy.headerPattern, "', error: ", err)
return false
end
elseif header == "always" then
return true
elseif header == "never" then
return false
end