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Custom Configuration

To provide your own configuration, there are several options. Here are two examples.

Bind-mount your prometheus.yml from the host by running:​

docker run \
    -p 9090:9090 \
    -v /path/to/prometheus.yml:/etc/prometheus/prometheus.yml \
    prom/prometheus

bind-mount the directory containing prometheus.yml onto /etc/prometheus by running:​

docker run \
    -p 9090:9090 \
    -v /path/to/config:/etc/prometheus \
    prom/prometheus

Use a custom image​

To avoid managing a file on the host and bind-mount it, the configuration can be baked into the image. This works well if the configuration itself is rather static and the same across all environments.

For this, create a new directory with a Prometheus configuration and a Dockerfile like this:

FROM prom/prometheus
ADD prometheus.yml /etc/prometheus/

Now build and run it:

docker build -t my-prometheus .
docker run -p 9090:9090 my-prometheus