#Prometheus blackbox exporter example install
Next, we will need to install Prometheus on our Alibaba Cloud instance by running the command below. Now check if Prometheus is installed by executing the command below: sudo systemctl status prometheusīelow is the expected output.
The output should look like this: prometheus: Next, you'll want to run the command below to check what version is available in your system.
#Prometheus blackbox exporter example update
The first step is to update the package list with the following commands: sudo apt-get update Prometheus is available by default in Ubuntu 18.04 (Bionic Beaver), but in some versions, which are outdated, you may not have it installed. Note that it is also possible to configure Alertmanager to send notifications to Slack. We will all of these set up in this tutorial.
A server block listening through a known port.A NGINX server that is installed with Ubuntu.An Alibaba Cloud Elastic Compute Service (ECS) instance that has Ubuntu 18.04 installed on it.To complete the setup guide in this tutorial, you should have the following: We will also create email alerts if the server fails a response test. We shall use both tools to see how well a NGINX server running on Alibaba Cloud responds to our requests. For each request, there are detailed data points such as the success of requests and response times. Blackbox Exporter uses several techniques to run request metrics including HTTP, HTTPS, DNS, TCP, and ICMP. An exporter such as Blackbox Exporter can have alerts configured for all these individual parts. Your infrastructure can be separated into various components including web and database servers, messaging systems or APIs. While Prometheus is a useful tool all by itself, it becomes even handier when integrated with an exporter. The advantage of using the manager is its compatibility with messaging services such as email. It makes use of an Alertmanager for alerting receivers, which may also duplicate or group different or similar alert types. Prometheus is open source and is used by developers and system administrators to track system metrics, monitor services, and record that information in a time-series database. Follow this link to access the latest Prometheus client download. The tools for the job include Prometheus, Alertmanager and Blackbox Exporter.
Want to know more about blackbox monitoring? Contact us.In this tutorial, we will explore ways to monitor the activity of a service running on an Alibaba Cloud ECS server. If you wanted to alert on probes failing you should look at both the up and probe_success metrics, to catch either the exporter or target having issues: groups:Įxpr: up = 0 You can adjust this behaviour by adding preferred_ip_protocol: "ip4" to the module's configuration. You may see a surprising failure if you don't have a working IPv6 setup, as the Blackbox exporter will prefer an IPv6 address if one is returned by DNS. If you wait a few seconds, you will see the result of probe_success in the expression browser. As you can see, paths can be included and HTTP and HTTPS are handled in the same way. The relabel_configs change the usual targets into URL parameters on the blackbox exporter. Now that the exporter is working, let's setup a Prometheus to use it: wget In particular look at the probe_success metric, which will be 1 if the probe succeeded and 0 if it failed. So if you visit :9115/probe?module=http_2xx&target= you will see the result of a probe of. Modules are configured in blackbox.yml and the default config includes a http_2xx module which does a HTTP probe which considers any 2xx HTTP response successful. How the Blackbox exporter works is that the /probe endpoint takes module and target URL parameters. To demonstrate this let's start by downloading and running the blackbox exporter: wget The Blackbox exporter supports several different types of probes, which includes HTTP.
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