Restore grafana dashboard

[rhetenor]

Hey!

Thanks for the server. Pretty fun!

While playing around a bit I noticed that the grafana dashboard got deleted. Probably because the folder got moved and the addition of pixelflut/ in the .gitignore.

Just restored the dashboard and modified the gitignore such that it doesn't happen again.

Cheers

[sbernauer]

Argh, good catch - you are absolutely right!
It did work for me locally, but I never committed the files 🙈

Can you please also add https://grafana.com/api/dashboards/1860/revisions/37/download as node-exporter-full_rev37.json?

[rhetenor]

Hey,

Added the other dashboard too.

Looked into it. It seems that the node-exporter is down and so the dashboard does not get any data. In grafana it says:
Datasource: Pixelflut; Job: None; Host: None. Can't find docker-node-exporter when running docker compose top.
Also when running docker compose rm it asks me to remove the docker-node-exporter and then running docker compose up it gives me the following output (two subsequent runs):

~/P/p/b/docker   main   docker compose up                                                                                                                                                                   I 
WARN[0000] /home/rhetenor/Projects/pixlflut/breakwater/docker/docker-compose.yml: `version` is obsolete 
[+] Running 4/4
 ✔ Container docker-pixelflut-1      Running                                                                                                                                                                  0.0s 
 ✔ Container docker-node-exporter-1  Created                                                                                                                                                                  0.2s 
 ✔ Container docker-prometheus-1     Running                                                                                                                                                                  0.0s 
 ✔ Container docker-grafana-1        Running                                                                                                                                                                  0.0s 
Attaching to grafana-1, node-exporter-1, pixelflut-1, prometheus-1
Gracefully stopping... (press Ctrl+C again to force)
Error response from daemon: path / is mounted on / but it is not a shared or slave mount
 ✘  ~/P/p/b/docker   main   docker compose up                                                                                                                                                               I 
WARN[0000] /home/rhetenor/Projects/pixlflut/breakwater/docker/docker-compose.yml: `version` is obsolete 
[+] Running 3/0
 ✔ Container docker-prometheus-1  Running                                                                                                                                                                     0.0s 
 ✔ Container docker-pixelflut-1   Running                                                                                                                                                                     0.0s 
 ✔ Container docker-grafana-1     Running                                                                                                                                                                     0.0s 
Attaching to grafana-1, node-exporter-1, pixelflut-1, prometheus-1
Gracefully stopping... (press Ctrl+C again to force)
Error response from daemon: path / is mounted on / but it is not a shared or slave mount

I guess the error output is coming from the node-exporter.
Hope it helps!

PS: Here's some system information if needed. If you need more, I'm glad to help.

docker --version                                                                                                                                                                   
Docker version 26.1.0, build 9714adc6c797755f63053726c56bc1c17c0c9204
uname -rsv                                                                                                                                                                         
Linux 6.6.57-gentoo-dist #1 SMP PREEMPT_DYNAMIC Sun Oct 27 13:11:14 CET 2024

[sbernauer]

Strange, I strictly follow the docs from node_exporter here regarding the / mount (https://hub.docker.com/r/prom/node-exporter):

services:
  node_exporter:
    image: quay.io/prometheus/node-exporter:latest
    container_name: node_exporter
    command:
      - '--path.rootfs=/host'
    network_mode: host
    pid: host
    restart: unless-stopped
    volumes:
      - '/:/host:ro,rslave' # <<<<<<<<<<

There has been exactly the same question at node_exporter: prometheus/node_exporter#2002
Maybe mount --make-rshared / works for you as well?

[sbernauer]

Thanks for fixing the .gitignore and re-adding the dashboards!
I would say we can merge this as-is, for most of the users both dashboards should work. I hope you can fix you concrete problem, maybe with the help of the linked issue. If not, you can also give the docker-compose without the volume a try.