Running the application

[konate58]

Hello, thanks for this good job. How to run application with the configuration file ? I have some issues: nithing in my mqtt server. I use mosquitto

with this config: mqtt: url: "mqtt://localhost:1883" username: "ke......" password: "M......" prometheus:

• url: "http://localhost::9095/metrics" topics: sample-topic: name: "prometheus2mqtt" labels: instance: "raspi"

Regards

[FlorianLoch]

Hello, there are basically two ways to run this:

1. Using the Go toolchain, i.e. calling go run . in the directory.
2. Building a Docker image an running the container. docker build -t prom2mqtt . followed by docker run prom2mqtt should do the trick.

The path to the configuration file can be set via the environment variable PROM2MQTT_CONFIG_PATH. By default the program will look for the configuration at ./prom2mqtt.config.yaml. When running with docker or podman the config file will need to be mounted into the container.

Just for completeness, your configuration should look like this:

mqtt:
  url: "mqtt://localhost:1883"
  username: "ke......"
  password: "M......"
prometheus:
  url: "http://localhost:9095/metrics"
topics:
  sample-topic:
    - name: "prometheus2mqtt" # this is the name of your prometheus metric
      labels:
        - name: "instance"
          value: "raspi"

Does this help you? :)

[konate58]

Hello,

thanks for your feedback and disponibility, I appreciate. I can see the connexion to my mqtt server but no information about topics.

There is no topics added.

Here is my final configuration:

mqtt: url: "mqtt://localhost:1883" username: "ke......" password: "M......" prometheus: url: "http://localhost:9095/metrics" topics: topic:

• name: "openweather_temperature" # this is the name of your prometheus metric labels:
  • name: "instance" value: "localhost:9095"

When I query with this: openweather_temperature{instance="localhost:9095"}

in prometheus I get :

Result series: 12 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 32.12 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 31.88 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 31.84 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 31.58 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 31.79 openweather_temperature{instance="localhost:9095", location="Giustiniana, IT "} 31.18 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 31.95 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 31.95 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 26.37 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 32.95 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 32.95 openweather_temperature{instance="localhost:9095", location="Ouakam, SN "} 32.95

Regards

Cheikh