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author | Joel Hans <joel@netdata.cloud> | 2020-09-29 10:57:52 -0700 |
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committer | GitHub <noreply@github.com> | 2020-09-29 10:57:52 -0700 |
commit | 61d7e23eed0503bf591274df70713970213b5c7f (patch) | |
tree | 125879ff5f780c2937ee206fc510d89e9a91a868 /docs/configure/nodes.md | |
parent | e3b04fb39a06991d9a2deed0488044dd7d340e3f (diff) |
Add docsv2 project to master branch (#10000)
* Add overview docs to docsv2 project
* Add quickstart docs to docsv2 project (#9865)
* Init quickstart docs
* Begin work on quickstart guides
* Finish quickstart drafts
* Tweaks to both quickstarts
* Add titles
* Copyedit pass to both docs
* Fixes for Amy and Jen
* Add Get doc to docsv2 project (#9854)
* Init get file
* Add some links
* Change h2 to h1
* Rephrase
* Add configure docs to docsv2 project (#9878)
* Add overview docs to docsv2 project (#9849)
* Init files
* Add drafts of what and why
* Finish initial drafts
* Fix edit URL
* Copyedit pass
* Finish initial drafts of configure docs
* Copyedit all docs
* Fixes for Amy
* Fixes for Jen
* Add collect docs to the docsv2 project (#9932)
* Init files
* Finish first two collect docs
* Finish drafts of collect docs
* Copyedit pass
* Fixes for Amy
* Fix for Jen
* Add visualize docs to the docsv2 project (#9943)
* Add visualize docs
* Copyedits and cleanup
* New images and features
* Copyedit pass and cleanup
* Missing word
* Fixes for Jen
* Add monitor docs to docsv2 project (#9949)
* Finish drafts of monitor docs
* Copyedit pass
* Remove whitespace
* Fixes for Jen
* Add store docs to docsv2 project (#9969)
* Finalize store documents
* Fix import path
* Finishing edit section
* Copyedit pass
* Add export docs to docsv2 project (#9986)
* Add install and claim videos to Get doc
* Finish drafts of exporting docs plus other tweaks
* Init new exporting READMEs
* Copyedit pass and new links
* Fixes for Amy, Vlad, Jen
* Fix links in docsv2 project (#9993)
* Fix links
* Fix a bunch of links ahead of export merge
* Fix additional links
* Fix links, nuke what-is-netdata
* Fixing a few last links
* Improve product images in overview
* Remove extra paren
* Quick tweaks for Jen
* Fixes for Jen
* Access fix
* Remove extra word
Diffstat (limited to 'docs/configure/nodes.md')
-rw-r--r-- | docs/configure/nodes.md | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/docs/configure/nodes.md b/docs/configure/nodes.md new file mode 100644 index 0000000000..5998c1e746 --- /dev/null +++ b/docs/configure/nodes.md @@ -0,0 +1,121 @@ +<!-- +title: "Configure your nodes" +description: "Netdata is zero-configuration for most users, but complex infrastructures may require you to tweak some of the Agent's granular settings." +custom_edit_url: https://github.com/netdata/netdata/edit/master/docs/configure/nodes.md +--> + +# Configure your nodes + +Netdata's zero-configuration collection, storage, and visualization features work for many users, infrastructures, and +use cases, but there are some situations where you might want to configure your nodes. + +For example, you might want to increase metrics retention, configure a collector based on your infrastructure's unique +setup, or secure the local dashboard by restricting it to only connections from `localhost`. + +Whatever the reason, Netdata users should know how to configure individual nodes to act decisively if an incident, +anomaly, or change in infrastructure affects how their Agents should peform. + +## The Netdata config directory + +On most Linux systems, using our [recommended one-line installation](/docs/get/README.md#install-the-netdata-agent), the +**Netdata config directory** is `/etc/netdata/`. The config directory contains several configuration files with the +`.conf` extension, a few directories, and a shell script named `edit-config`. + +> Some operating systems will use `/opt/netdata/etc/netdata/` as the config directory. If you're not sure where yours +> is, navigate to `http://NODE:19999/netdata.conf` in your browser, replacing `NODE` with the IP address or hostname of +> your node, and find the `# config directory = ` setting. The value listed is the config directory for your system. + +All of Netdata's documentation assumes that your config directory is at `/etc/netdata`, and that you're running any +scripts from inside that directory. + +## Netdata's configuration files + +Upon installation, the Netdata config directory contains a few files and directories. + +- `netdata.conf` is the main configuration file. This is where you'll find most configuration options. This doc won't + go into exhaustive detail about each setting. You can read descriptions for each in the [daemon config + doc](/daemon/config/README.md). +- `orig` is a symbolic link to the directory `/usr/lib/netdata/conf.d`, which contains stock configuration files. + Stock versions are copied into the config directory when opened with `edit-config`. _Do not edit the files in + `/usr/lib/netdata/conf.d`, as they are overwritten by updates to the Netdata Agent._ +- `edit-config` is a shell script used for [editing configuration files](#use-edit-config-to-edit-netdataconf). +- `go.d/`, `python.d/`, `charts.d/`, `node.d`/, and `custom-plugins.d/`, which are directories for each of Netdata's + [orchestrators](/collectors/plugins.d/README.md#external-plugins-overview). These directories can each contain + additional `.conf` files for configuring specific collectors. + +## Use `edit-config` to edit `netdata.conf` + +The best way to edit any configuration file is with `edit-config` script. This script opens existing Netdata +configuration files using your system's `$EDITOR`. If the file doesn't yet exist in your config directory, the script +copies the stock version from `/usr/lib/netdata/conf.d` and opens it for editing. + +`edit-config` is the recommended way to easily and safely edit Netdata's configuration. + +Run `edit-config` without any options to see details on its usage and a list of all the configuration files you can +edit. + +```bash +./edit-config +USAGE: + ./edit-config FILENAME + + Copy and edit the stock config file named: FILENAME + if FILENAME is already copied, it will be edited as-is. + + The EDITOR shell variable is used to define the editor to be used. + + Stock config files at: '/usr/lib/netdata/conf.d' + User config files at: '/etc/netdata' + + Available files in '/usr/lib/netdata/conf.d' to copy and edit: + +./apps_groups.conf ./health.d/phpfpm.conf +./aws_kinesis.conf ./health.d/pihole.conf +./charts.d/ap.conf ./health.d/portcheck.conf +./charts.d/apcupsd.conf ./health.d/postgres.conf +... +``` + +To edit `netdata.conf`, run `./edit-config netdata.conf`. You may need to elevate your privileges with `sudo` or another +method for `edit-config` to write into the config directory. Use your `$EDITOR`, make your changes, and save the file. + +> `edit-config` uses the `EDITOR` environment variable on your system to edit the file. On many systems, that is +> defaulted to `vim` or `nano`. To change this variable for the current session (it will revert to the default when you +> reboot), export a new value: `export EDITOR=nano`. Or, [make the change +> permanent](https://stackoverflow.com/questions/13046624/how-to-permanently-export-a-variable-in-linux). + +After you make your changes, you need to restart the Agent with `service netdata restart`. + +Here's an example of editing the node's hostname, which appears in both the local dashboard and in Netdata Cloud. + +![Animated GIF of editing the hostname option in +netdata.conf](https://user-images.githubusercontent.com/1153921/80994808-1c065300-8df2-11ea-81af-d28dc3ba27c8.gif) + +### Other configuration files + +You can edit any Netdata configuration file using `edit-config`. A few examples: + +```bash +./edit-config apps_groups.conf +./edit-config ebpf.conf +./edit-config health.d/load.conf +./edit-config go.d/prometheus.conf +``` + +The documentation for each of Netdata's components explains which file(s) to edit to achieve the desired behavior. + +## What's next? + +Take advantage of this newfound understanding of node configuration to [add security to your +node](/docs/configure/secure-nodes.md). We have a few best practices based on how you use the Netdata Agent and Netdata +Cloud. + +You can also take what you've learned about node configuration to tweak the Agent's behavior or enable new features: + +- [Enable new collectors](/docs/collect/enable-configure.md) or tweak their behavior. +- [Configure existing health alarms](/docs/monitor/configure-alarms.md) or create new ones. +- [Enable notifications](/docs/monitor/enable-notifications.md) to receive updates about the health of your + infrastructure. +- Change [the long-term metrics retention period](/docs/store/change-metrics-storage.md) using the database engine. + +[![analytics](https://www.google-analytics.com/collect?v=1&aip=1&t=pageview&_s=1&ds=github&dr=https%3A%2F%2Fgithub.com%2Fnetdata%2Fnetdata&dl=https%3A%2F%2Fmy-netdata.io%2Fgithub%2Fdocs%2Fconfigure%2Fnodesa&_u=MAC~&cid=5792dfd7-8dc4-476b-af31-da2fdb9f93d2&tid=UA-64295674-3)](<>) |