mirror of
https://github.com/lucky-sideburn/kubeinvaders.git
synced 2026-04-05 18:06:56 +00:00
126 lines
3.3 KiB
Lua
126 lines
3.3 KiB
Lua
local https = require "ssl.https"
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local ltn12 = require "ltn12"
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local json = require 'lunajson'
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local redis = require "resty.redis"
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local incr = 0
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if os.getenv("KUBERNETES_SERVICE_HOST") then
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k8s_url = "https://" .. os.getenv("KUBERNETES_SERVICE_HOST") .. ":" .. os.getenv("KUBERNETES_SERVICE_PORT_HTTPS")
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else
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k8s_url = os.getenv("ENDPOINT")
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end
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local token = os.getenv("TOKEN")
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local arg = ngx.req.get_uri_args()
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local namespace = arg['namespace']
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local decoded = nil
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local action = arg['action']
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local url = ''
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local pods = {}
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local method = 'GET'
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local pods_not_found = true;
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ngx.header['Access-Control-Allow-Origin'] = '*'
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ngx.header['Access-Control-Allow-Methods'] = 'GET, POST, OPTIONS'
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ngx.header['Access-Control-Allow-Headers'] = 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range'
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ngx.header['Access-Control-Expose-Headers'] = 'Content-Length,Content-Range';
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if action == "delete" 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 deleted pods
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local res, err = red:get("deleted_pods_total")
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if res == ngx.null then
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ngx.say(err)
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red:set("deleted_pods_total", 1)
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else
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incr = res + 1
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red:set("deleted_pods_total", incr)
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end
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-- Count the total of deleted pods for namespace
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local res, err = red:get("deleted_pods_total_on_" .. namespace)
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if res == ngx.null then
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red:set("deleted_pods_total_on_" .. namespace, 1)
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else
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incr = res + 1
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red:set("deleted_pods_total_on_" .. namespace, incr)
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end
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end
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if action == "list" then
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url = k8s_url.. "/api/v1/namespaces/" .. namespace .. "/pods"
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elseif action == "delete" then
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local pod_name = arg['pod_name']
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url = k8s_url.. "/api/v1/namespaces/" .. namespace .. "/pods/" .. pod_name
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method = "DELETE"
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else
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ngx.say("Please set the parameter 'action'")
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ngx.exit(ngx.OK)
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end
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--ngx.log(ngx.ERR, "token: " .. token)
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ngx.log(ngx.ERR, "url: " .. url)
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ngx.log(ngx.ERR, "namespace: " .. namespace)
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local headers = {
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["Accept"] = "application/json",
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["Content-Type"] = "application/json",
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["Authorization"] = "Bearer " .. token,
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}
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local resp = {}
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local ok, statusCode, headers, statusText = https.request{
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url = url,
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headers = headers,
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method = method,
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sink = ltn12.sink.table(resp)
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}
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ngx.log(ngx.ERR, "REQUEST LOGS...")
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ngx.log(ngx.ERR, ok)
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ngx.log(ngx.ERR, statusCode)
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ngx.log(ngx.ERR, statusText)
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if action == "list" then
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local i = 1
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pods["items"] = {}
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for k,v in ipairs(resp) do
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decoded = json.decode(v)
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if decoded["kind"] == "PodList" then
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for k2,v2 in ipairs(decoded["items"]) do
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if v2["status"]["phase"] == "Running" and v2["metadata"]["labels"]["approle"] ~= "chaosnode" then
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ngx.log(ngx.ERR, "found pod " .. v2["metadata"]["name"])
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pods["items"][i] = v2["metadata"]["name"]
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i = i + 1
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pods_not_found = false;
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end
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end
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end
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end
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if pods_not_found then
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ngx.log(ngx.ERR, "No pods found into the namespace " .. namespace)
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ngx.say("{\"items\": []}")
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else
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ngx.say(json.encode(pods))
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end
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elseif action == "delete" then
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ngx.say(table.concat(resp))
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end
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