Deploy prometheus node exporter using ansible.

• Ansible >= 2.7 (It might work on previous versions, but we cannot guarantee it)
• gnu-tar on Mac deployer host (brew install gnu-tar)
• Passlib is required when using the basic authentatication feature (pip install passlib[bcrypt])

All variables which can be overridden are stored in defaults/main.yml file as well as in table below.

Use it in a playbook as follows:

- hosts: all
  roles:
    - cloudalchemy.node-exporter

Before running node_exporter role, user needs to provision their own certificate and key.

- hosts: all
  pre_tasks:
    - name: Create node_exporter cert dir
      file:
        path: "/etc/node_exporter"
        state: directory
        owner: root
        group: root

    - name: Create cert and key
      openssl_certificate:
        path: /etc/node_exporter/tls.cert
        csr_path: /etc/node_exporter/tls.csr
        privatekey_path: /etc/node_exporter/tls.key
        provider: selfsigned
  roles:
    - cloudalchemy.node-exporter
  vars:
    node_exporter_tls_server_config:
      cert_file: /etc/node_exporter/tls.cert
      key_file: /etc/node_exporter/tls.key
    node_exporter_basic_auth_users:
      randomuser: examplepassword 

We provide demo site for full monitoring solution based on prometheus and grafana. Repository with code and links to running instances is available on github and site is hosted on DigitalOcean.

The preferred way of locally testing the role is to use Docker and molecule (v2.x). You will have to install Docker on your system. See "Get started" for a Docker package suitable to for your system. We are using tox to simplify process of testing on multiple ansible versions. To install tox execute:

pip3 install tox

To run tests on all ansible versions (WARNING: this can take some time)

tox

To run a custom molecule command on custom environment with only default test scenario:

tox -e py35-ansible28 -- molecule test -s default

For more information about molecule go to their docs.

If you would like to run tests on remote docker host just specify DOCKER_HOST variable before running tox tests.

Combining molecule and travis CI allows us to test how new PRs will behave when used with multiple ansible versions and multiple operating systems. This also allows use to create test scenarios for different role configurations. As a result we have a quite large test matrix which will take more time than local testing, so please be patient.

See contributor guideline.

See troubleshooting.

This project is licensed under MIT License. See LICENSE for more details.