matrix-docker-ansible-deploy/roles/matrix-prometheus/defaults/main.yml

# matrix-prometheus is an open-source systems monitoring and alerting toolkit
# See: https://github.com/matrix-org/synapse/blob/master/docs/metrics-howto.md

matrix_prometheus_enabled: false

matrix_prometheus_docker_image: "docker.io/prom/prometheus:v2.24.1"
matrix_prometheus_docker_image_force_pull: "{{ matrix_prometheus_docker_image.endswith(':latest') }}"

matrix_synapse_prometheus_rules_download_url: "https://raw.githubusercontent.com/matrix-org/synapse/{{ matrix_synapse_docker_image_tag }}/contrib/prometheus/synapse-v2.rules"

matrix_prometheus_base_path: "{{ matrix_base_data_path }}/prometheus"
matrix_prometheus_config_path: "{{ matrix_prometheus_base_path }}/config"
matrix_prometheus_data_path: "{{ matrix_prometheus_base_path }}/data"

# A list of extra arguments to pass to the container
matrix_prometheus_container_extra_arguments: []

# List of systemd services that matrix-prometheus.service depends on
matrix_prometheus_systemd_required_services_list: ['docker.service']

# List of systemd services that matrix-prometheus.service wants
matrix_prometheus_systemd_wanted_services_list: []

# Controls whether the matrix-prometheus container exposes its HTTP port (tcp/9090 in the container).
#
# Takes an "<ip>:<port>" or "<port>" value (e.g. "127.0.0.1:9090"), or empty string to not expose.
matrix_prometheus_container_http_host_bind_port: ''

# Target addresses for the "node" scraper configuration.
# Unless you define this as a non-empty list, it gets populated at runtime with the IP address of `matrix-prometheus-node-exporter` and port 9100.
matrix_prometheus_endpoint_node_targets: []

# Default prometheus configuration template which covers the generic use case.
# You can customize it by controlling the various variables inside it.
#
# For a more advanced customization, you can extend the default (see `matrix_prometheus_configuration_extension_yaml`)
# or completely replace this variable with your own template.
matrix_prometheus_configuration_yaml: "{{ lookup('template', 'templates/prometheus.yml.j2') }}"

matrix_prometheus_configuration_extension_yaml: |
  # Your custom YAML configuration goes here.
  # This configuration extends the default starting configuration (`matrix_prometheus_configuration_yaml`).
  #
  # You can override individual variables from the default configuration, or introduce new ones.
  #
  # If you need something more special, you can take full control by
  # completely redefining `matrix_prometheus_configuration_yaml`.

matrix_prometheus_configuration_extension: "{{ matrix_prometheus_configuration_extension_yaml|from_yaml if matrix_prometheus_configuration_extension_yaml|from_yaml is mapping else {} }}"

# Holds the final configuration (a combination of the default and its extension).
# You most likely don't need to touch this variable. Instead, see `matrix_prometheus_configuration_yaml`.
matrix_prometheus_configuration: "{{ matrix_prometheus_configuration_yaml|from_yaml|combine(matrix_prometheus_configuration_extension, recursive=True) }}"