install.fairie/docs/scripts/after/run_onchange_after_57-netdata.sh.tmpl.md

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---
title: Netdata
description: Connects Netdata with Netdata's free cloud dashboard and applies some system optimizations, if necessary
sidebar_label: 57 Netdata
slug: /scripts/after/run_onchange_after_57-netdata.sh.tmpl
githubLocation: https://github.com/megabyte-labs/install.doctor/blob/master/home/.chezmoiscripts/universal/run_onchange_after_57-netdata.sh.tmpl
scriptLocation: https://github.com/megabyte-labs/install.doctor/raw/master/home/.chezmoiscripts/universal/run_onchange_after_57-netdata.sh.tmpl
repoLocation: home/.chezmoiscripts/universal/run_onchange_after_57-netdata.sh.tmpl
---
# Netdata
Connects Netdata with Netdata's free cloud dashboard and applies some system optimizations, if necessary
## Overview
This script connects Netdata with Netdata Cloud if Netdata is installed, the `NETDATA_TOKEN` is provided, and the
`NETDATA_ROOM` is defined. This allows you to graphically browse through system metrics on all your connected devices
from a single free web application.
## Source Code
```
{{- if and (ne .host.distro.family "windows") (stat (joinPath .host.home ".config" "age" "chezmoi.txt")) (or (stat (joinPath .chezmoi.sourceDir ".chezmoitemplates" "secrets" "NETDATA_TOKEN")) (env "NETDATA_TOKEN")) (or (stat (joinPath .chezmoi.sourceDir ".chezmoitemplates" "secrets" "NETDATA_ROOM")) (env "NETDATA_ROOM")) -}}
#!/usr/bin/env bash
# @file Netdata
# @brief Connects Netdata with Netdata's free cloud dashboard and applies some system optimizations, if necessary
# @description
# This script connects Netdata with Netdata Cloud if Netdata is installed, the `NETDATA_TOKEN` is provided, and the
# `NETDATA_ROOM` is defined. This allows you to graphically browse through system metrics on all your connected devices
# from a single free web application.
{{ includeTemplate "universal/profile" }}
{{ includeTemplate "universal/logg" }}
### Claim the instance with Netdata Cloud
if command -v netdata-claim.sh > /dev/null; then
NETDATA_TOKEN="{{ if (stat (joinPath .chezmoi.sourceDir ".chezmoitemplates" "secrets" "NETDATA_TOKEN")) }}{{ includeTemplate "secrets/NETDATA_TOKEN" | decrypt }}{{ else }}{{ env "NETDATA_TOKEN" }}{{ end }}"
NETDATA_ROOM="{{ if (stat (joinPath .chezmoi.sourceDir ".chezmoitemplates" "secrets" "NETDATA_ROOM")) }}{{ includeTemplate "secrets/NETDATA_ROOM" | decrypt }}{{ else }}{{ env "NETDATA_ROOM" }}{{ end }}"
# netdata-claim.sh must be run as netdata user
sudo -H -u netdata bash -c 'netdata-claim.sh -token="$NETDATA_TOKEN" -rooms="$NETDATA_ROOM" -url="{{ .netdataClaimURL }}"'
# Kernel optimizations
# These are mentioned while installing via the kickstart.sh script method. We are using Homebrew for the installation though.
# Assuming these optimizations do not cause any harm.
if [ -d /Applications ] && [ -d /System ]; then
# macOS
logg info 'System is macOS so Netdata kernel optimizations are not required'
else
# Linux
if [ -d /sys/kernel/mm/ksm ]; then
logg info 'Adding Netdata kernel optimization for `/sys/kernel/mm/ksm/run`'
echo 1 | sudo tee /sys/kernel/mm/ksm/run
logg info 'Adding Netdata kernel optimization for `/sys/kernel/mm/ksm/sleep_millisecs`'
echo 1000 | sudo tee /sys/kernel/mm/ksm/sleep_millisecs
else
logg info 'The `/sys/kernel/mm/ksm` directory does not exist so Netdata kernel optimizations are not being applied'
fi
fi
else
logg warn '`netdata-claim.sh` is not available in the PATH'
fi
{{ end -}}
```