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https://github.com/lucky-sideburn/kubeinvaders.git
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45 lines
1.5 KiB
Lua
45 lines
1.5 KiB
Lua
local redis = require "resty.redis"
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local arg = ngx.req.get_uri_args()
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local incr = 0
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-- TO DO put all metrics into this metrics.lua. Actually in pod.lua are written other metrics in Redis
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if ngx.var.request_method == "GET" and string.match(ngx.var.request_uri, "^.*/chaos[-]node.*$") then
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local red = redis:new()
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local okredis, errredis = red:connect("unix:/tmp/redis.sock")
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if okredis then
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ngx.log(ngx.ERR, "Connection to Redis is ok")
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else
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ngx.log(ngx.ERR, "Connection to Redis is not ok")
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ngx.log(ngx.ERR, errredis)
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end
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-- Count the total of chaos jobs launched against nodes
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local chaos_node_res, err = red:get("chaos_node_jobs_total")
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if chaos_node_res == ngx.null then
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ngx.say(err)
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red:set("chaos_node_jobs_total", 1)
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else
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local incr = chaos_node_res + 1
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local res, err = red:set("chaos_node_jobs_total",incr)
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end
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-- Count the total of chaos jobs launched against nodes per node
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local node_name = arg['node_name']
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local chaos_node_res, err = red:get("chaos_node_jobs_total_on_" .. node_name)
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if chaos_node_res == ngx.null then
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ngx.say(err)
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red:set("chaos_node_jobs_total_on_" .. node_name, 1)
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else
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local incr = chaos_node_res + 1
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local res, err = red:set("chaos_node_jobs_total_on_" .. node_name,incr)
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end
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elseif ngx.var.request_method == "GET" and ngx.var.request_uri == "/metrics" then
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for i, res in ipairs(red:keys("*")) do
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ngx.log(ngx.ERR, res)
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ngx.say(res .. " " .. red:get(res))
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end
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end
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