In this blogpost, I explain how to create dashlets using custom filters. This way you can create dashlets of your own which you find is necessary. Having dashboards in fact improves monitoring. Dashlets are the different sections under the given dashboard, which are the snapshots of some monitoring views and are defined by a name. Requirements: Icinga 2 and Icinga Web 2 installed.
Two weeks ago, Icinga 2 Config Sync: Behind the Scenes explained how the config sync in Icinga 2 works and how you can look behind the scenes. Today, we will put our knowledge from that post to the test and try to manually replicate the config sync. The most important takeaways will be recapped in this post, but if you are interested and have the time, the other post is also worth a read.
Today we finally have great news to share for everyone using Icinga to monitor Hyper-V and Windows Cluster environments. For quite some time we’ve been working on multiple new plugins to provide better monitoring option for Hyper-V and Windows Cluster. The new plugins are based on our PowerShell framework provided by Icinga for Windows. For the new plugins we decided to provide a preview first, in favour of a final release.
As many users of Icinga don’t know what the DSL has to offer, I’m going to show you how to use custom variables and apply for rules to make your life easier when writing configuration for your Icinga environment. In this example we will use custom variables on a host to configure a dynamic set of services to monitor multiple web services behind a reverse proxy. On the host we define a custom dictionary called http_vhosts and assign our virtual hosts to it.
Today’s blog post dives into the internals of Icinga 2 and will give you an overview how the config synchronization works internally. We will take a small cluster as an example and follow the configuration files through the synchronization mechanism. We assume some familiarity with distributed Icinga 2 setups as this post will not go into details on how to set up an Icinga 2 cluster.
