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add docker permissions to readme

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Robin Appelman 2021-12-12 16:28:36 +01:00
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README.md
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@ -2,15 +2,6 @@
System metrics exporter for prometheus
## Usage
- Download the binary for your architecture from the [releases](https://github.com/icewind1991/palantir/releases/) and place it at `/usr/local/bin/palantir`
- Place the [palantir.service](palantir.service) file in `/etc/systemd/system/`
- Create the `palantir` user: `sudo useradd -m palantir`
- Follow the instructions below to enable power monitoring
- Start enable enable the server: `sudo systemctl enable --now palantir`
- Metrics will be available at `localhost:5665/metrics`
## Exported metrics
- cpu, memory, io, network and disk usage stats
@ -18,11 +9,21 @@ System metrics exporter for prometheus
- cpu and gpu temperature (gpu temps only for amd cards)
- cpu power usage on modern amd and intel platforms
- docker per-container cpu, memory and network stats
-
## Usage
- Download the binary for your architecture from the [releases](https://github.com/icewind1991/palantir/releases/) and place it at `/usr/local/bin/palantir`
- Place the [palantir.service](palantir.service) file in `/etc/systemd/system/`
- Create the `palantir` user: `sudo useradd -m palantir`
- Start enable enable the server: `sudo systemctl enable --now palantir`
- Metrics will be available at `localhost:5665/metrics`
Some stats require additional permissions described below.
## Power monitoring permissions
In recent kernel versions, precise power monitoring is only accessible to root users to prevent using it as a side-channel attack.
In order to get the power monitoring output you'll need to give the palantir user access to this data using the following steps.
In order to get the power monitoring output you'll need to give the `palantir` user access to this data using the following steps.
- Create a group using
@ -53,3 +54,11 @@ In order to get the power monitoring output you'll need to give the palantir use
```
sudo su - palantir -c 'cat /sys/class/powercap/intel-rapl:0:0/energy_uj'
```
## Docker monitoring permissions
To enable monitoring of docker containers, add the `palantir` user to the `docker` group
```bash
sudo usermod -a -G docker palantir
```