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Netdata plugin for aggregating multiple metrics into one graph, mainly for custom dashboard
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| # -*- coding: utf-8 -*- | |
| # Put this in /usr/libexec/netdata/python.d/ | |
| from bases.FrameworkServices.SimpleService import SimpleService | |
| import requests | |
| def fetch_latest(): | |
| return requests.get("http://192.168.1.10:19999/api/v1/allmetrics?filter=cgroup*&format=json").json() | |
| NETDATA_UPDATE_EVERY = 1 | |
| priority = 1000 | |
| ORDER = [ | |
| 'cgroup_cpu', | |
| 'cgroup_mem' | |
| ] | |
| CHARTS = { | |
| 'cgroup_cpu': { | |
| 'options': ["cgroup_cpu", 'Containers & VMs CPU usage', 'percentage', 'cpu', 'cgroup.cpu', 'line'], | |
| 'lines': [] | |
| }, | |
| 'cgroup_mem': { | |
| 'options': ["cgroup_mem", 'Containers & VMs memory usage', 'MiB', 'mem', 'cgroup.mem', 'line'], | |
| 'lines': [] | |
| }, | |
| } | |
| class Service(SimpleService): | |
| def __init__(self, configuration=None, name=None): | |
| SimpleService.__init__(self, configuration=configuration, name=name) | |
| self.order = ORDER | |
| self.definitions = CHARTS | |
| @staticmethod | |
| def check(): | |
| return True | |
| def get_data(self): | |
| data = dict() | |
| resp = fetch_latest() | |
| for k in resp: | |
| if k.endswith(".cpu"): | |
| dim = k.replace("cgroup_", "") | |
| if dim not in self.charts['cgroup_cpu']: | |
| self.charts['cgroup_cpu'].add_dimension([dim, dim.replace(".cpu", ""), None, None, 100]) | |
| data[dim] = sum(map(lambda x: x["value"] * 100, resp[k]["dimensions"].values())) | |
| if k.endswith(".mem"): | |
| dim = k.replace("cgroup_", "") | |
| if dim not in self.charts['cgroup_mem']: | |
| self.charts['cgroup_mem'].add_dimension([dim, dim.replace(".mem", ""), None, None, 1000]) | |
| data[dim] = resp[k]["dimensions"]["anon"]["value"] * 1000 | |
| return data | |
| # Also a dashboard.html | |
| # Put it in /var/lib/netdata/www/mydashboard.html | |
| """ | |
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <title>HomeLab dashboard</title> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| <meta charset="utf-8"> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <meta name="apple-mobile-web-app-capable" content="yes"> | |
| <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent"> | |
| </head> | |
| <body> | |
| Full dashboard => <a href="/v1/">v1</a> <a href="/">v2</a><br /> | |
| <div style="display: flex;"> | |
| <div data-netdata="system.cpu" data-dygraph-valuerange="[0, 100]" data-height="180"></div> | |
| <div data-netdata="system.ram" data-height="180"></div> | |
| </div> | |
| <div style="display: flex;"> | |
| <div data-netdata="system.io" data-height="180"></div> | |
| <div data-netdata="system.net" data-height="180"></div> | |
| </div> | |
| <div style="display: flex;"> | |
| <div data-netdata="aggregator.cgroup_cpu" data-height="180"></div> | |
| <div data-netdata="aggregator.cgroup_mem" data-height="180"></div> | |
| </div> | |
| <div style="display: flex;"> | |
| <div data-netdata="miiot_power.power_usage" data-height="150"></div> | |
| </div> | |
| </body> | |
| <script type="text/javascript" src="http://192.168.1.10:19999/dashboard.js"></script> | |
| </html> | |
| """ |
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