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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport agent_util import os from agent_util import float import sys ###################################3 # -*- coding: utf-8 -*- import logging import socket logger = logging.getLogger(__name__) class TimeoutException(Exception): pass ################################## def get_status_headers(config): # branch logic based on socket vs http interface if "socket_cfg_file" in config: buffer = "" client = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) client.connect(config["socket_cfg_file"]) client.settimeout(2.0) out = "show stat" + "\n" client.send(out.encode("utf-8")) f = client.makefile() output = f.read().split("\n") client.close() if ( "stats_http_host" in config and "stats_http_port" in config and "stats_http_path" in config ): auth_string = "" if "stats_http_user" in config and "stats_http_password" in config: auth_string = "%s:%s@" % ( config["stats_http_user"], config["stats_http_password"], ) stats_endpoint = "http://%s%s:%s/%s?stats;csv;norefresh" % ( auth_string, config["stats_http_host"], config["stats_http_port"], config["stats_http_path"].replace("/", ""), ) ret, output = agent_util.execute_command("curl '%s'" % stats_endpoint) # extract the values from the output output = output.split("\n") header_line = output[0].split(",") metric_values = [] for values in output[1:]: if len(header_line) == len(values.split(",")): metric_values.append(dict(zip(header_line, values.split(",")))) return metric_values, output class HAProxyPlugin(agent_util.Plugin): textkey = "haproxy" label = "HAProxy" @classmethod def get_metadata(self, config): status = agent_util.SUPPORTED msg = None # check if haproxy is installed installed = agent_util.which("haproxy") if not installed: msg = "haproxy binary not found" self.log.info(msg) status = agent_util.UNSUPPORTED return {} # if http interface is being used, check if curl is present if "stats_http_host" in config and not agent_util.which("curl", exc=False): self.log.info("curl not found!") status = agent_util.UNSUPPORTED msg = "Curl is not installed - please install" return {} # if sock interface is being used, check if we can access the file if "socket_cfg_file" in config: socket_cfg_file = config["socket_cfg_file"] if config.get("debug", False): self.log.debug("HAProxy socket file path %s" % socket_cfg_file) if not os.access(socket_cfg_file, os.W_OK): self.log.error( "Agent does not have permission to access the HAProxy socket file. Please adjust permissions." ) status = agent_util.MISCONFIGURED msg = "Agent does not have permission to access the HAProxy socket file. Please adjust permissions." return {} pxservers = set() svnames = set() try: metric_values = None output = None metric_values, output = get_status_headers(config) if config.get("debug", False): self.log.info("#####################################################") self.log.info("HAProxy command 'show stat' output:") self.log.info(output) self.log.info("#####################################################") for values in metric_values: pxname = values["# pxname"] svname = values["svname"] if svname == "BACKEND": # We skip the Backend checks continue pxservers.add(pxname + " " + svname) except Exception: status = agent_util.MISCONFIGURED self.log.exception("Couldn't get haproxy status") self.log.info("#####################################################") self.log.info("HAProxy command 'show stat' output:") self.log.info(output) self.log.info("#####################################################") msg = "Couldn't get haproxy status, make sure haproxy is running, haproxy configuration file is valid and the status module is enabled" pxservers = list(pxservers) pxservers.sort() backend_pxservers = list( filter(lambda x: "http_back" in x or "BACKEND" in x, pxservers) ) pxservers += ["Total Backend", "Total Frontend"] if status is agent_util.SUPPORTED and not pxservers: status = agent_util.MISCONFIGURED msg = "No Proxy servers found." metadata = { "qcur": { "label": "Current HAProxy service queued requests ", "options": pxservers, "status": status, "error_message": msg, }, "scur": { "label": "Current HAProxy service sessions", "options": pxservers, "status": status, "error_message": msg, }, "stot": { "label": "HAProxy service sessions", "options": pxservers, "status": status, "error_message": msg, }, "stot_rate": { "label": "HAProxy service session rate", "options": pxservers, "status": status, "error_message": msg, "unit": "sessions per second", }, "bin": { "label": "Bytes In of HAProxy service", "options": pxservers, "status": status, "error_message": msg, }, "bin_rate": { "label": "Rate of Bytes In of HAProxy service", "options": pxservers, "status": status, "error_message": msg, "unit": "B/s", }, "bout": { "label": "Bytes Out of HAProxy service", "options": pxservers, "status": status, "error_message": msg, }, "bout_rate": { "label": "Rate of Bytes Out of HAProxy service", "options": pxservers, "status": status, "error_message": msg, "unit": "B/s", }, "ereq": { "label": "HAProxy service error requests", "options": pxservers, "status": status, "error_message": msg, }, "eresp": { "label": "HAProxy service response errors", "options": pxservers, "status": status, "error_message": msg, }, "econ": { "label": "HAProxy service connection errors", "options": pxservers, "status": status, "error_message": msg, }, "rate": { "label": "Sessions created per second", "options": pxservers, "status": status, "error_message": msg, }, "req_rate": { "label": "HTTP requests per second", "options": pxservers, "status": status, "error_message": msg, }, "dreq": { "label": "Requests denied due to ACL restrictions", "options": pxservers, "status": status, "error_message": msg, }, "act": { "label": "Number of HAProxy service active servers", "options": backend_pxservers, "status": status, "error_message": msg, }, "dresp": { "label": "Responses denied due to ACL restrictions", "options": pxservers, "status": status, "error_message": msg, }, "wredis": { "label": "Redispatched requests", "options": pxservers, "status": status, "error_message": msg, }, "wretr": { "label": "Connection retries", "options": pxservers, "status": status, "error_message": msg, }, "bck": { "label": "Number of HAProxy service backup servers", "options": backend_pxservers, "status": status, "error_message": msg, }, "hrsp_1xx": { "label": "http responses with 1xx code", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "hrsp_2xx": { "label": "http responses with 2xx code", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "hrsp_3xx": { "label": "http responses with 3xx code", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "hrsp_4xx": { "label": "http responses with 4xx code", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "hrsp_5xx": { "label": "http responses with 5xx code", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "hrsp_other": { "label": "http responses with other codes (protocol error)", "options": pxservers, "status": status, "error_message": msg, "unit": "req/min", }, "status": { "label": "webserver status", "options": pxservers, "status": status, "error_message": msg, "unit": "boolean", }, } return metadata def check(self, textkey, pxserver, config): metric_values, output = get_status_headers(config) res = 0 isRate = False cached = 0 cache = None if ( textkey.endswith("_rate") and (textkey != "req_rate") ) or textkey.startswith("hrsp"): isRate = True if not textkey.startswith("hrsp"): textkey = textkey.split("_")[0] self.log.debug("Cache textkey {}".format(textkey)) cache = self.get_cache_results(textkey, "haproxy") if pxserver.startswith("Total"): # Calculate the total of all services svname = pxserver.split(" ")[-1].upper() res = 0 for metric in metric_values: if metric.get("svname") == svname: self.log.debug( "Total Calc SV {} Textkey {} PX {} Val {}".format( metric.get("svname"), textkey, metric["# pxname"], metric[textkey], ) ) try: if metric[textkey] == "": continue elif metric[textkey] == "UP" or metric[textkey] == "OPEN": res = 1 elif metric[textkey] == "DOWN": res = 0 else: res += int(metric[textkey]) except Exception: self.log.exception("Unable to parse metric value") else: # Checking a specific haproxy service metric. pxname = pxserver[: pxserver.rfind(" " + pxserver.split(" ")[-1])] svname = pxserver.split(" ")[-1] for metric in metric_values: self.log.debug("Metric value: %s " % metric[textkey]) if pxname == metric["# pxname"] and svname == metric["svname"]: res = metric[textkey] if metric[textkey] in ("UP", "OPEN"): res = 1 elif "DOWN" == metric[textkey]: res = 0 else: try: res = int(res) except: return None if isRate is True: self.cache_result(textkey, "haproxy", res) if not cache: return None delta, cached_result = cache[0] if res < cached_result: return None val = (res - cached_result) / float(delta) if textkey.startswith("hrsp"): # We want actually requests per minute. val = val * 60 return val return res