Hi,

The validation seems to be correct. There is no path property in inside storage.tsdb inside the configuration file. https://prometheus.io/docs/prometheus/latest/configuration/configuration/#tsdb

Having said that, I don't know the reason it is possible to configure some aspects of prometheus through command line flags, but not through the configuration file.

My two cents is that it would be nice to have parity between both, but maybe I'm missing some context.

from prometheus.

Ok, one difference to keep in mind is that the configuration file can be reloaded:

From the docs:

Prometheus can reload its configuration at runtime. If the new configuration is not well-formed, the changes will not be applied. A configuration reload is triggered by sending a SIGHUP to the Prometheus process or sending a HTTP POST request to the /-/reload endpoint (when the --web.enable-lifecycle flag is enabled). This will also reload any configured rule files.

https://prometheus.io/docs/prometheus/latest/configuration/configuration/

So I assume that all parameters that cannot be changed in runtime are passed through command line flags.

from prometheus.

Hello, I want to customize the file storage location of Prometheus. How can I implement it?
prometheus.yml
`# my global config
global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.

scrape_timeout is set to the global default (10s).

Storage configuration

storage:
tsdb:
path: "/data/www/Monitoring/cache"

Alertmanager configuration

alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093

Load rules once and periodically evaluate them according to the global 'evaluation_interval'.

rule_files:

- "first_rules.yml"

- "second_rules.yml"

A scrape configuration containing exactly one endpoint to scrape:

Here it's Prometheus itself.

scrape_configs:

The job name is added as a label job=<job_name> to any timeseries scraped from this config.

• job_name: "prometheus"

  metrics_path defaults to '/metrics'

  scheme defaults to 'http'.

  static_configs:

  • targets: ["localhost:9090"]

• job_name: 'node_exporter'
  static_configs:

  • targets: ['localhost:9100']

• job_name: 'promtail'
  static_configs:

  • targets: ['localhost:9080']

• job_name: 'nginx'
  metrics_path: /nginx_status
  static_configs:

  • targets: ['localhost:80']Start:[Unit]
    Description=Prometheus
    After=network.target

[Service]
User=root
ExecStart=/data/www/Monitoring/prometheus/prometheus --config.file=/data/www/Monitoring/prometheus/prometheus.yml

[Install]
WantedBy=multi-user.target
`

from prometheus.

I want to customize the file storage location of Prometheus. How can I implement it?

from prometheus.