created scripts folder

scripts/metrics.lua

@@ -0,0 +1,77 @@
+local redis = require "resty.redis"
+local arg = ngx.req.get_uri_args()
+local incr = 0
+if ngx.var.request_method == "DELETE" then
+  local red = redis:new()
+  local okredis, errredis = red:connect("unix:/tmp/redis.sock")
+  
+  if okredis then
+    ngx.log(ngx.ERR, "Connection to Redis is ok")
+  else
+    ngx.log(ngx.ERR, "Connection to Redis is not ok")
+    ngx.log(ngx.ERR, errredis)
+  end
+  -- Count the total of deleted pods
+  local res, err = red:get("deleted_pods_total")
+  
+  if res == ngx.null then
+    ngx.say(err)
+    red:set("deleted_pods_total", 1)
+  else
+      incr = res + 1
+      red:set("deleted_pods_total", incr)      
+  end
+
+  -- TODO: Make a better regular expression!
+  local namespace_pods = string.match(ngx.var.request_uri, '^.*/namespaces/(.*)/.*$')
+  local namespace = namespace_pods:gsub("/pods", "")
+  
+  -- Count the total of deleted pods for namespace
+  local res, err = red:get("deleted_pods_total_on_" .. namespace)
+  
+  if res == ngx.null then
+    red:set("deleted_pods_total_on_" .. namespace, 1)
+  else
+    incr = res + 1
+    red:set("deleted_pods_total_on_" .. namespace, incr)
+  end
+  
+
+elseif ngx.var.request_method == "GET" and string.match(ngx.var.request_uri, "^.*/chaos[-]node.*$") then
+  local red = redis:new()
+  local okredis, errredis = red:connect("unix:/tmp/redis.sock")
+  
+  if okredis then
+    ngx.log(ngx.ERR, "Connection to Redis is ok")
+  else
+    ngx.log(ngx.ERR, "Connection to Redis is not ok")
+    ngx.log(ngx.ERR, errredis)
+  end
+  -- Count the total of chaos jobs launched against nodes
+  local chaos_node_res, err = red:get("chaos_node_jobs_total")
+  
+  if chaos_node_res == ngx.null then
+    ngx.say(err)
+    red:set("chaos_node_jobs_total", 0)
+  else
+    local incr = chaos_node_res + 1
+    local res, err = red:set("chaos_node_jobs_total",incr)      
+  end
+
+  -- Count the total of chaos jobs launched against nodes per node
+  local node_name = arg['node_name']
+  local chaos_node_res, err = red:get("chaos_node_jobs_total_on_" .. node_name)
+  if chaos_node_res == ngx.null then
+    ngx.say(err)
+    red:set("chaos_node_jobs_total_on_" .. node_name, 1)
+  else
+    local incr = chaos_node_res + 1
+    local res, err = red:set("chaos_node_jobs_total_on_" .. node_name,incr)      
+  end
+
+elseif ngx.var.request_method == "GET" and ngx.var.request_uri == "/metrics" then
+  for i, res in ipairs(red:keys("*")) do
+    ngx.log(ngx.ERR, res)
+    ngx.say(res ..  " " .. red:get(res))
+  end
+end