Adding upstream version 2.14.2.upstream/2.14.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# Icinga 2 Addons and Integrations <a id="addons"></a>
+
+For an uptodate overview of all integrations and modules,
+please visit [https://icinga.com/products/](https://icinga.com/products/).
+
+## Syntax Highlighting <a id="configuration-syntax-highlighting"></a>
+
+Icinga 2 provides configuration examples for syntax highlighting using the `vim` and `nano` editors.
+
+### Using Vim <a id="configuration-syntax-highlighting-vim"></a>
+
+Install the package `vim-icinga2` with your distribution's package manager.
+
+Ensure that syntax highlighting is enabled e.g. by editing the user's `vimrc`
+configuration file:
+
+```
+# vim ~/.vimrc
+syntax on
+```
+
+Test it:
+
+```bash
+vim /etc/icinga2/conf.d/templates.conf
+```
+
+![Vim with syntax highlighting](images/addons/vim-syntax.png "Vim with Icinga 2 syntax highlighting")
+
+
+### Using Nano <a id="configuration-syntax-highlighting-nano"></a>
+
+Install the package `nano-icinga2` with your distribution's package manager.
+
+**Note:** On Debian, Ubuntu and Raspbian, the syntax files are installed with the `icinga2-common` package already.
+
+Copy the `/etc/nanorc` sample file to your home directory.
+
+```bash
+cp /etc/nanorc ~/.nanorc
+```
+
+Include the `icinga2.nanorc` file.
+
+```
+$ vim ~/.nanorc
+
+## Icinga 2
+include "/usr/share/nano/icinga2.nanorc"
+```
+
+Test it:
+
+```bash
+nano /etc/icinga2/conf.d/templates.conf
+```
+
+![Nano with syntax highlighting](images/addons/nano-syntax.png "Nano with Icinga 2 syntax highlighting")
+
+## Icinga Reporting <a id="addons-reporting"></a>
+
+The [Icinga Reporting Module](https://icinga.com/docs/reporting/latest/)
+is the framework and foundation we created to handle data collected
+by Icinga 2 and other data providers. By definition Icinga Reporting does not collect
+or calculate any data. The framework processes usable data from data providers such as
+Icinga’s IDO or Icinga Web 2 modules and makes them available in different formats.
+
+It can display the data directly within the Icinga web interface or export it to PDF,
+JSON or CSV format. With scheduled reports you can receive the prepared data periodically
+via email.
+
+![Icinga Reporting](images/addons/icinga_reporting.png)
+
+Follow along in this [hands-on blog post](https://icinga.com/2019/06/17/icinga-reporting-hands-on/).
+
+
+## Graphs and Metrics <a id="addons-graphs-metrics"></a>
+
+### Graphite <a id="addons-graphing-graphite"></a>
+
+[Graphite](https://graphite.readthedocs.org/en/latest/) is a time-series database
+storing collected metrics and making them available through restful apis
+and web interfaces.
+
+Graphite consists of 3 software components:
+
+* carbon -- a Twisted daemon that listens for time-series data
+* whisper -- a simple database library for storing time-series data (similar in design to RRD)
+* graphite webapp -- a Django webapp that renders graphs on-demand using Cairo
+
+You need to install Graphite first, then proceed with configuring it in Icinga 2.
+
+Use the [GraphiteWriter](14-features.md#graphite-carbon-cache-writer) feature
+for sending real-time metrics from Icinga 2 to Graphite.
+
+```bash
+icinga2 feature enable graphite
+```
+
+A popular alternative frontend for Graphite is for example [Grafana](https://grafana.org).
+
+Integration in Icinga Web 2 is possible by installing the official [graphite module](https://icinga.com/docs/graphite/latest/).
+
+![Icinga Web 2 Detail View with Graphite](images/addons/icingaweb2_graphite.png)
+
+
+### InfluxDB <a id="addons-graphing-influxdb"></a>
+
+[InfluxDB](https://influxdb.com) is a time series, metrics, and analytics database.
+It’s written in Go and has no external dependencies.
+
+Use the [InfluxdbWriter](14-features.md#influxdb-writer) feature
+for sending real-time metrics from Icinga 2 to InfluxDB v1.
+
+```bash
+icinga2 feature enable influxdb
+```
+
+Use the [Influxdb2Writer](14-features.md#influxdb-writer) feature
+for sending real-time metrics from Icinga 2 to InfluxDB v2.
+
+```bash
+icinga2 feature enable influxdb2
+```
+
+A popular frontend for InfluxDB is for example [Grafana](https://grafana.org).
+
+Integration in Icinga Web 2 is possible by installing the community [Grafana module](https://github.com/Mikesch-mp/icingaweb2-module-grafana).
+
+![Icinga Web 2 Detail View with Grafana](images/addons/icingaweb2_grafana.png)
+
+
+### PNP <a id="addons-graphing-pnp"></a>
+
+[PNP](https://www.pnp4nagios.org) is a graphing addon.
+
+[PNP](https://www.pnp4nagios.org) is an addon which adds a graphical representation of the performance data collected
+by the monitoring plugins. The data is stored as rrd (round robin database) files.
+
+Use your distribution's package manager to install the `pnp4nagios` package.
+
+If you're planning to use it, configure it to use the
+[bulk mode with npcd and npcdmod](https://docs.pnp4nagios.org/pnp-0.6/modes#bulk_mode_with_npcd_and_npcdmod)
+in combination with Icinga 2's [PerfdataWriter](14-features.md#writing-performance-data-files). NPCD collects the performance
+data files which Icinga 2 generates.
+
+Enable performance data writer in icinga 2
+
+```bash
+icinga2 feature enable perfdata
+```
+
+Configure npcd to use the performance data created by Icinga 2:
+
+```bash
+vim /etc/pnp4nagios/npcd.cfg
+```
+
+Set `perfdata_spool_dir = /var/spool/icinga2/perfdata` and restart the `npcd` daemon.
+
+There's also an Icinga Web 2 module for direct PNP graph integration
+available at [Icinga Exchange](https://exchange.icinga.com/icinga/PNP).
+
+## Visualization <a id="addons-visualization"></a>
+
+### Maps <a id="addons-visualization-maps"></a>
+
+This community module displays host objects as markers on openstreetmap in Icinga Web 2.
+It uses the data provided by the monitoring module and as such the [DB IDO](14-features.md#db-ido)
+from Icinga 2.
+
+If you configure multiple hosts with the same coordinates, i.e. servers in a datacenter, a clustered view is rendered.
+
+Check the  [Map module docs](https://github.com/nbuchwitz/icingaweb2-module-map) for more details on
+installation, configuration and integration.
+
+![Icinga Web 2 Maps](images/addons/icingaweb2_maps.png)
+
+### Business Process <a id="addons-business-process"></a>
+
+Create top-level views of your applications in a graphical editor.
+Rules express dependencies between existing hosts and services and
+let you alert on application level. Business processes are displayed
+in a tree or list overview and can be added to any dashboard.
+
+![Icinga Web 2 Business Process](images/addons/icingaweb2_businessprocess.png)
+
+Read more [here](https://icinga.com/products/icinga-business-process-modelling/).
+
+### Certificate Monitoring <a id="addons-visualization-certificate-monitoring"></a>
+
+Monitor your certificates in an efficient and comfortable way. Be aware of required
+actions and view all details at a glance.
+
+![Icinga Certificate Monitoring](images/addons/icinga_certificate_monitoring.png)
+
+Read more [here](https://icinga.com/products/icinga-certificate-monitoring/)
+and [here](https://icinga.com/2019/06/03/monitoring-automation-with-icinga-certificate-monitoring/).
+
+### Dashing Dashboard <a id="addons-visualization-dashing-dashboard"></a>
+
+The [Icinga 2 dashboard](https://github.com/dnsmichi/dashing-icinga2) is built
+on top of Dashing and uses the [REST API](12-icinga2-api.md#icinga2-api) to visualize what's going
+on with your monitoring. It combines several popular widgets and provides development
+instructions for your own implementation.
+
+The dashboard also allows to embed the [Icinga Web 2](https://icinga.com/products/icinga-web-2/)
+host and service problem lists as Iframe.
+
+![Dashing dashboard](images/addons/dashing_icinga2.png)
+
+
+## Log Monitoring <a id="log-monitoring"></a>
+
+Using [Logstash](https://www.elastic.co/guide/en/logstash/current/introduction.html) or
+[Graylog](https://www.graylog.org) in your infrastructure and correlate events with your monitoring
+is even simpler these days.
+
+* Use the `GelfWriter` feature to write Icinga 2's check and notification events to Graylog or Logstash.
+* Configure the logstash `nagios` output to send passive traps to Icinga 2 using the external command pipe.
+* Execute a plugin to check Graylog alert streams.
+
+More details can be found in [this blog post](https://icinga.com/2014/12/02/team-icinga-at-osmc-2014/).
+
+## Notification Scripts and Interfaces <a id="notification-scripts-interfaces"></a>
+
+There's a variety of resources available, for example different notification scripts such as:
+
+* E-Mail ([examples](03-monitoring-basics.md#alert-notifications) provided)
+* SMS
+* Pager (XMPP, etc.)
+* Twitter
+* IRC
+* Ticket systems
+* etc.
+
+Blog posts and howtos:
+
+* [Environmental Monitoring and Alerting](https://icinga.com/2019/09/02/environmental-monitoring-and-alerting-via-text-message/)
+
+Additionally external services can be [integrated with Icinga 2](https://icinga.com/products/integrations/):
+
+* [Pagerduty](https://icinga.com/products/integrations/pagerduty/)
+* [VictorOps](https://icinga.com/products/integrations/victorops/)
+* [StackStorm](https://icinga.com/products/integrations/stackstorm/)
+
+More information can be found on the [Icinga Website](https://icinga.com/).
+
+## Configuration Management Tools <a id="configuration-tools"></a>
+
+Checkout these specific integrations:
+
+* [Ansible Roles](https://icinga.com/products/integrations/)
+* [Puppet Module](https://icinga.com/products/integrations/puppet/)
+* [Chef Cookbook](https://icinga.com/products/integrations/chef/)
+
+If you're looking for different config management integrations -- we're happy
+to add them upstream, so please get in touch with the [Icinga team](https://icinga.com/community/).