Files
kubeinvaders/scripts/chaos-containers.lua
Eugenio Marzo d8c4eeb62e fix logs tail
2023-01-12 18:31:45 +01:00

60 lines
2.6 KiB
Lua

local arg = ngx.req.get_uri_args()
local action = arg['action']
local config = require "config_kubeinv"
local redis = require "resty.redis"
local red = redis:new()
local okredis, errredis = red:connect("unix:/tmp/redis.sock")
if okredis then
ngx.log(ngx.INFO, "Connection to Redis is ok")
else
ngx.log(ngx.INFO, "Connection to Redis is not ok")
ngx.log(ngx.INFO, errredis)
end
ngx.header['Access-Control-Allow-Origin'] = '*'
ngx.header['Access-Control-Allow-Methods'] = 'GET, POST, OPTIONS'
ngx.header['Access-Control-Allow-Headers'] = 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range'
ngx.header['Access-Control-Expose-Headers'] = 'Content-Length,Content-Range'
if ngx.var.request_method == "GET" and action == 'container_definition' then
ngx.log(ngx.INFO, "Received request for getting chaos container definition")
local res, err = red:get("chaos_container")
if res == ngx.null then
ngx.log(ngx.INFO, "There is no chaos_container key set in Redis. Taking default chaos container definition")
ngx.say(config['default_chaos_container'])
else
ngx.log(ngx.INFO, "There is chaos_container key set in Redis. Taking custom chaos container definition")
ngx.say(res)
end
elseif ngx.var.request_method == "POST" and action == 'set' then
local body_data = ngx.req.get_body_data()
ngx.log(ngx.INFO, "Received new yaml definition for chaos container: " .. body_data)
red:set("chaos_container", body_data)
ngx.say("New chaos container definition has been configured in Redis")
return ngx.exit(ngx.status)
elseif ngx.var.request_method == "POST" and action == "set_log_regex" then
local body_data = ngx.req.get_body_data()
red:set("log_pod_regex:" .. arg['id'], body_data)
red:set("pods_match_regex:" .. arg['id'], "0")
red:set("programming_mode", "0")
ngx.say("Regex has been set => " .. body_data)
ngx.log(ngx.INFO, "Set Regex for web log tail. Log id " .. arg['id'])
return ngx.exit(ngx.status)
elseif ngx.var.request_method == "POST" and action == "enable_log_tail" then
local body_data = ngx.req.get_body_data()
red:set("logs_enabled:" .. arg['id'], "1")
red:expire("logs_enabled:" .. arg['id'], "30")
ngx.log(ngx.INFO, "Enable Log Tail for log id " .. arg['id'])
ngx.say("Enable Log Tail for log id " .. arg['id'])
return ngx.exit(ngx.status)
elseif ngx.var.request_method == "POST" and action == "disable_log_tail" then
red:set("programming_mode", "0")
ngx.say("Disable Log Tail for log id " .. arg['id'])
ngx.log(ngx.INFO, "Disable Log Tail for log id " .. arg['id'])
return ngx.exit(ngx.status)
end