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Merge pull request #3505 from Shopify/watch-pod-lua

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Update lua configuration_data when number of controller pod change
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Kubernetes Prow Robot 2018-12-17 00:10:30 -08:00 • committed by GitHub
commit ee3a8fe581
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10 changed files with 113 additions and 19 deletions
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34
rootfs/etc/nginx/lua/configuration.lua
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@ -12,6 +12,10 @@ function _M.get_backends_data()
return configuration_data:get("backends")
end
function _M.get_general_data()
return configuration_data:get("general")
end
local function fetch_request_body()
ngx.req.read_body()
local body = ngx.req.get_body_data()
@ -80,6 +84,31 @@ local function handle_servers()
ngx.status = ngx.HTTP_CREATED
end
local function handle_general()
if ngx.var.request_method == "GET" then
ngx.status = ngx.HTTP_OK
ngx.print(_M.get_general_data())
return
end
if ngx.var.request_method ~= "POST" then
ngx.status = ngx.HTTP_BAD_REQUEST
ngx.print("Only POST and GET requests are allowed!")
return
end
local config = fetch_request_body()
local success, err = configuration_data:safe_set("general", config)
if not success then
ngx.status = ngx.HTTP_INTERNAL_SERVER_ERROR
ngx.log(ngx.ERR, "error setting general config: " .. tostring(err))
return
end
ngx.status = ngx.HTTP_CREATED
end
function _M.call()
if ngx.var.request_method ~= "POST" and ngx.var.request_method ~= "GET" then
ngx.status = ngx.HTTP_BAD_REQUEST
@ -92,6 +121,11 @@ function _M.call()
return
end
if ngx.var.request_uri == "/configuration/general" then
handle_general()
return
end
if ngx.var.request_uri ~= "/configuration/backends" then
ngx.status = ngx.HTTP_NOT_FOUND
ngx.print("Not found!")