Installs Prometheus on Ubuntu 16.04 (Xenial)

This role requires Ansible 2.4 or higher.

The role defines most of its variables in defaults/main.yml:

• List of components to be installed.
• Default value: ["prometheus", "alertmanager", "telegram_bot"]

Telegram bot will install docker

• Url of the Alertmanager service.

• Default value: http://{{alertmanager_url}}:{{alertmanager_port}}

• Result Value "http://localhost:9093/"

• Default Value: localhost

• Default : 9093

• Version of the Prometheus service.
• Default value: 2.4.2

• Version of the Alertmanager service.
• Default value: 0.15.2

• The URL under which Prometheus is externally reachable (for example, if Prometheus is served via a reverse proxy). Used for generating relative and absolute links back to Prometheus itself. If the URL has a path portion, it will be used to prefix all HTTP endpoints served by Prometheus. If omitted, relevant URL components will be derived automatically.
• Default value: Not defined (By default get hostname)

• Prefix forthe internal routes of web endpoints.
• Default value: Void

• The URL under which Alertmanager is externally reachable (for example, if Alertmanagr is served via a reverse proxy). Used for generating relative and absolute links back to Alertmanager itself. If the URL has a path portion, it will be used to prefix all HTTP endpoints served by Alertmanager. If omitted, relevant URL components will be derived automatically.
• Default value: Not defined (By default get hostname)

• Prefix forthe internal routes of web endpoints.
• Default value: Void

Run with default vars:

    - hosts: all
      roles:
        - role: ansible-prometheus
          prometheus_server: prometheus_hostname

Run with default vars:
- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_rule_files:
          basic_rules:
            src:  "prometheus/rules/basic.rules"
            dest: basic.rules
          black_box_rules:
            src:  "prometheus/rules/black_box.rules"
            dest: black_box.rules

├── group_vars
│   └── all
├── host
├── playbook.yml
├── prometheus
│   ├── alertmanager.yml
│   ├── prometheus.yml
│   ├── rules
│   │   ├── basic.rules
│   │   └── black_box.rules
│   └── telegram_bot
│       ├── config.yaml
│       └── template.tmpl
├── requirements.yaml
└── roles

Run with default vars:
- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_prometheus_bot_template_conf: prometheus/telegram_bot/template.tmpl
        prometheus_prometheus_bot_conf: prometheus/telegram_bot/config.yaml
        prometheus_rule_files:
          basic_rules:
            src:  "prometheus/rules/basic.rules"
            dest: basic.rules
          black_box_rules:
            src:  "prometheus/rules/black_box.rules"
            dest: black_box.rules

you can manage rules by git repository, in 4 ways.

In case you wanna clone rules from openrepository. Example: https://github.com/entercloudsuite/prometheus-rules-collections.git

you nead configure just var prometheus_rule_git_repo

- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_rule_git_repo: https://github.com/entercloudsuite/prometheus-rules-collections.git

- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_rule_git_repo: [email protected]:myuser/my_repo.git
        prometheus_rule_git_key_pathfile: /path_to_key/inmyserver/private.pem

- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_rule_git_repo: [email protected]:myuser/my_repo.git
        prometheus_rule_git_key: |
          -----BEGIN OPENSSH PRIVATE KEY-----
          MY_KEY
          -----END OPENSSH PRIVATE KEY-----

- hosts: all
      roles:
      - role: entercloudsuite.prometheus
        prometheus_conf_main: "prometheus/prometheus.yml"
        prometheus_alertmanager_conf: "prometheus/alertmanager.yml"
        prometheus_rule_git_repo: https://git_username:[email protected]/myuser/my_repo.git

Tests are performed using Molecule.

Install Molecule or use docker-compose run --rm molecule to run a local Docker container, based on the enterclousuite/molecule project, from where you can use molecule.

1. Run molecule create to start the target Docker container on your local engine.
2. Use molecule login to log in to the running container.
3. Edit the role files.
4. Add other required roles (external) in the molecule/default/requirements.yml file.
5. Edit the molecule/default/playbook.yml.
6. Define infra tests under the molecule/default/tests folder using the goos verifier.
7. When ready, use molecule converge to run the Ansible Playbook and molecule verify to execute the test suite.
   Note that the converge process starts performing a syntax check of the role.
   Destroy the Docker container with the command molecule destroy.

To run all the steps with just one command, run molecule test.

In order to run the role targeting a VM, use the playbook_deploy.yml file for example with the following command: ansible-playbook ansible-prometheus/molecule/default/playbook_deploy.yml -i VM_IP_OR_FQDN, -u ubuntu --private-key private.pem.

docker-compose run --rm molecule molecule create molecule converge

MIT