grafana-ansible-collection/roles/grafana_agent/defaults/main.yaml

---
# version of the agent to install
grafana_agent_version: latest

# directory to install the binary to
grafana_agent_install_dir: /opt/grafana-agent/bin

# name to use for the binary
grafana_agent_binary: grafana-agent

# directory to store the configuration files in
grafana_agent_config_dir: /etc/grafana-agent

# name of the configuration file for the agent
grafana_agent_config_filename: config.yaml

# name of the environment file loaded by the system unit file
grafana_agent_env_file: service.env

# temporary directory to create on the controller/localhost where the archive will be downloaded to
grafana_agent_local_tmp_dir: /tmp/grafana-agent

# data directory to create for the wal and positions
grafana_agent_data_dir: /var/lib/grafana-agent

# wal directory to use, should be a sub-folder of grafana_agent_data_dir, will automatically be created when the agent starts
grafana_agent_wal_dir: "{{ grafana_agent_data_dir }}/data"

# positions directory to use, should be a sub-folder of grafana_agent_data_dir, will automatically be created when the agent starts
grafana_agent_positions_dir: "{{ grafana_agent_data_dir }}/data"

# mode to run Grafana Agent in. Can be "flow" or "static".
# Docs: https://grafana.com/docs/agent/latest/flow/
grafana_agent_mode: static

# os user to create for the agent to run as
grafana_agent_user: grafana-agent

# os user group to create for the agent
grafana_agent_user_group: grafana-agent

# the shell for the user
grafana_agent_user_shell: /usr/sbin/nologin

# whether or not to create a home directory for the user
grafana_agent_user_createhome: false

# full path to the local binary if already downloaded or built on the controller
# this should only be set, if ansible is not downloading the binary and you have
# manually downloaded the binary
grafana_agent_local_binary_file: ""

# dictionary of additional command-line flags, run grafana-agent --help for a complete list
# Docs: https://grafana.com/docs/agent/latest/configuration/flags/
grafana_agent_flags_extra:
  config.expand-env: 'true'
  config.enable-read-api: 'false'
  server.register-instrumentation: 'true'
  server.http.address: 127.0.0.1:12345
  server.grpc.address: 127.0.0.1:12346

# sets Environment variables in the systemd service configuration.
grafana_agent_env_vars: {}

# dictionary of key/pair values to write to the environment file that is loaded by the service, with the flag --config.expand-env=true
# any generated config files will support the expansion of environment variables at runtime by referencing ${ENVVAR}.
# be aware of boolean values, when output they will result in the proper-cased string "True" and "False"
grafana_agent_env_file_vars: {}

# path to a config file on the controller that will be used instead of the provided configs below if specified.
grafana_agent_provisioned_config_file: ""

#################################################################################################
#              Configures the server of the Agent used to enable self-scraping                  #
#################################################################################################
# Docs: https://grafana.com/docs/agent/latest/configuration/server-config/
# the entire dictionary value for this object is copied to the server: block in the config file
grafana_agent_server_config:
  # Log only messages with the given severity or above. Supported values [debug,
  # info, warn, error]. This level affects logging for all Agent-level logs, not
  # just the HTTP and gRPC server.
  #
  # Note that some integrations use their own loggers which ignore this
  # setting.
  log_level: info

#################################################################################################
#                             Configures metric collection                                      #
#################################################################################################
# Docs: https://grafana.com/docs/agent/latest/configuration/metrics-config/
# the entire dictionary value for this object is copied to the metrics: block in the config file
grafana_agent_metrics_config:
  # Configure values for all Prometheus instances
  # Docs: https://grafana.com/docs/agent/latest/configuration/metrics-config/#global_config
  global:
    # How frequently should Prometheus instances scrape.
    scrape_interval: 1m

    # How long to wait before timing out a scrape from a target.
    scrape_timeout: 10s

    # A dictionary of key/pair static labels to add for all metrics.
    external_labels: {}

    # Default set of remote_write endpoints. If an instance doesn't define any
    # remote_writes, it will use this list.
    # Docs: https://prometheus.io/docs/prometheus/2.34/configuration/configuration/#remote_write
    remote_write: []

  # The list of Prometheus instances to launch with the agent.
  # Docs: https://grafana.com/docs/agent/latest/configuration/metrics-config/#metrics_instance_config
  configs: []
  #  - name: name-of-scrape-job
  #    # Docs: https://prometheus.io/docs/prometheus/2.34/configuration/configuration/#scrape_config
  #    scrape_configs: []
  #    # Optional list of remote_write targets, if not specified metrics.global.remote_write is used
  #    # Docs: https://prometheus.io/docs/prometheus/2.34/configuration/configuration/#remote_write
  #    remote_write: []

  # Configure the directory used by instances to store their WAL.
  #
  # The Grafana Agent assumes that all folders within wal_directory are managed by
  # the agent itself.
  wal_directory: "{{ grafana_agent_wal_dir }}"
  # Configures how long ago an abandoned (not associated with an instance) WAL
  # may be written to before being eligible to be deleted
  wal_cleanup_age: 12h
  # Configures how often checks for abandoned WALs to be deleted are performed.
  # A value of 0 disables periodic cleanup of abandoned WALs
  wal_cleanup_period: 30m

#################################################################################################
#                              Configures logs collection                                       #
#################################################################################################
# Docs: https://grafana.com/docs/agent/latest/configuration/logs-config/
# the entire dictionary value for this object is copied to the logs: block in the config file
grafana_agent_logs_config:
  # Directory to store Loki Promtail positions files in. Positions files are
  # required to read logs, and are used to store the last read offset of log
  # sources. The positions files will be stored in
  # <positions_directory>/<logs_instance_config.name>.yml.
  #
  # Optional only if every config has a positions.filename manually provided.
  #
  # This directory will be automatically created if it doesn't exist.
  positions_directory: "{{ grafana_agent_positions_dir }}"
  # Configure values for all Loki Promtail instances.
  global:
    # Docs: https://grafana.com/docs/agent/latest/configuration/logs-config/#logs_instance_config
    clients: []

#################################################################################################
#                             Configures traces collection                                      #
#################################################################################################
# Docs: https://grafana.com/docs/agent/latest/configuration/traces-config/
# the entire dictionary value for this object is copied to the traces: block in the config file
grafana_agent_traces_config:
  # Docs: https://grafana.com/docs/agent/latest/configuration/traces-config/#traces_instance_config
  configs: []

#################################################################################################
#                          Configures integrations for the agent                                #
#################################################################################################
# Docs: https://grafana.com/docs/agent/latest/configuration/integrations/
# the entire dictionary value for this object is copied to the integrations: block in the config file
grafana_agent_integrations_config:
  # Automatically collect metrics from enabled integrations. If disabled,
  # integrations will be run but not scraped and thus not remote_written. Metrics
  # for integrations will be exposed at /integrations/<integration_key>/metrics
  # and can be scraped by an external process.
  scrape_integrations: true
  # Controls the Agent integration
  agent:
    # Enables the Agent integration, allowing the Agent to automatically
    # collect and send metrics about itself.
    enabled: true
    # Allows for relabeling labels on the target.
    relabel_configs: []
    # Relabel metrics coming from the integration, allowing to drop series
    # from the integration that you don't care about.
    metric_relabel_configs: []

  # Controls the node_exporter integration
  # Docs: https://grafana.com/docs/agent/latest/configuration/integrations/node-exporter-config/
  node_exporter:
    enabled: true