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Support rolling publishing in AI scenarios #195

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Support rolling publishing in AI scenarios #195

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14 changes: 13 additions & 1 deletion lua_configuration/networking.istio.io/VirtualService/trafficRouting.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,10 @@ function GetRulesToPatch(spec, stableService, protocol)
local matchedRoutes = {}
if (spec[protocol] ~= nil) then
for _, rule in ipairs(spec[protocol]) do
local retries = rule.retries or {}
if #retries == 0 then
rule.retries = nil
end
-- skip routes contain matches
if (rule.match == nil) then
for _, route in ipairs(rule.route) do
Expand All @@ -44,6 +48,14 @@ end

-- generate routes with matches, insert a rule before other rules, only support http headers, cookies etc.
function GenerateRoutesWithMatches(spec, matches, stableService, canaryService)
local http = spec.http
for _, rule in ipairs(http) do
local retries = rule.retries or {}
if #retries == 0 then
rule.retries = nil
end
end

for _, match in ipairs(matches) do
local route = {}
route["match"] = {}
Expand Down Expand Up @@ -79,7 +91,7 @@ function GenerateRoutesWithMatches(spec, matches, stableService, canaryService)
else
route.route[1].destination.host = canaryService
end
table.insert(spec.http, 1, route)
table.insert(http, 1, route)
end
end

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