prometheus.yml dynamic update

[govinda...@gmail.com]

Is there a way i can pass run time variable when running prometheus docker and update prometheus.yml with this vaule?

docker run -d -p 9100:9100 --net="host" --name="prometheus" -e CONSUL='consul.com' prometheus:latest

prometheus.yml

```

    - server: ${CONSUL}:8500

      datacenter: 'MyDC'

      services: ['telegraf']

```

$CONSUL should be replaced with consul.com

Thoughts?

[Brian Brazil]

This isn't supported by Prometheus itself, however you could use shell substitution to sed to the same effect. 

--

Brian Brazil

www.robustperception.io

[govinda...@gmail.com]

Thanks Brian. You guys do it inside the prometheus.yml file? 

[Brian Brazil]

On 16 May 2017 at 20:21, <govinda...@gmail.com> wrote:

Thanks Brian. You guys do it inside the prometheus.yml file? 

prometheus.yml is intentionally dumb, any substitution needs to be done by something else.

Brian

 

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[Wojciech Sciesinski]

You can do it using Ansible and builtin modules for it

- template: to prepare the prometheus.yml file (delegate_to: localhost)

- shell: to run promtool  to parse the prepared file )delegate_to: localhost) -

- copy: to copy parsed file to Docker host

- docker_container: to create and start Prometheus Server docker container

Documentation for Ansible you can find here: https://docs.ansible.com/ansible/