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DoTheEvo 2023-03-19 14:08:26 +01:00
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prometheus_grafana/readme.md
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@ -41,8 +41,8 @@ Lot of the prometheus stuff here is based off the magnificent
Prometheus is an open source system for monitoring and alerting,
written in golang.<br>
It periodically collects metrics from configured targets,
makes these metrics available for visualization, and can trigger alerts.<br>
It periodically collects **metrics** from configured **targets**,
makes these metrics available for visualization, and can trigger **alerts**.<br>
Prometheus is relatively young project, it is a **pull type** monitoring.
[Glossary.](https://prometheus.io/docs/introduction/glossary/)
@ -94,16 +94,16 @@ The directories are created by docker compose on the first run.
# docker-compose
* **Prometheus** - The official image used. Few extra commands passing configuration.
Of note is 240 hours(10days) retention policy.
Of note is 240 hours(10days) **retention** policy.
* **Grafana** - The official image used. Bind mounted directory
for persistent data storage. User sets as root, as it solves issues I am
for persistent data storage. User sets **as root**, as it solves issues I am
lazy to investigate.
* **NodeExporter** - An exporter for linux machines,
in this case gathering the metrics of the linux machine runnig docker,
in this case gathering the **metrics** of the docker host,
like uptime, cpu load, memory use, network bandwidth use, disk space,...<br>
Also bind mount of some system directories to have access to required info.
Also **bind mount** of some system directories to have access to required info.
* **cAdvisor** - An exporter for gathering docker **containers** metrics,
showing cpu, memory, network use of each container<br>
showing cpu, memory, network use of **each container**<br>
Runs in `privileged` mode and has some bind mounts of system directories
to have access to required info.
@ -270,16 +270,16 @@ prom.{$MY_DOMAIN} {
set URL to `http://prometheus:9090`<br>
* import dashboards from [json files in this repo](dashboards/)<br>
These dashboards are the preconfigured ones from
These **dashboards** are the preconfigured ones from
[stefanprodan/dockprom](https://github.com/stefanprodan/dockprom)
with few changes.<br>
`docker_host.json` did not show free disk space for me, had to change `fstype`
with **few changes**.<br>
**Docker host** dashboard did not show free disk space for me, **had to change fstype**
from `aufs` to `ext4`.
Also included is [a fix](https://github.com/stefanprodan/dockprom/issues/18#issuecomment-487023049)
for host network monitoring not showing traffick. In all of them
for **host network monitoring** not showing traffick. In all of them
the default time interval is set to 1h instead of 15m
* **docker_host.json** - dashboard showing linux host machine metrics
* **docker_host.json** - dashboard showing linux docker host metrics
* **docker_containers.json** - dashboard showing docker containers metrics,
except the ones labeled as `monitoring` in the compose file
* **monitoring_services.json** - dashboar showing docker containers metrics