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securityonion/salt/postgres/telegraf_users.sls
T
Mike Reeves 470b3bd4da Comingle Telegraf metrics into shared schema
Per-minion schemas cause table count to explode (N minions * M metrics)
and the per-minion revocation story isn't worth it when retention is
short. Move all minions to a shared 'telegraf' schema while keeping
per-minion login credentials for audit.

- New so_telegraf NOLOGIN group role owns the telegraf schema; each
  per-minion role is a member and inherits insert/select via role
  inheritance
- Telegraf connection string uses options='-c role=so_telegraf' so
  tables auto-created on first write belong to the group role
- so-telegraf-trim walks the flat telegraf.* table set instead of
  per-minion schemas
- so-stats-show filters by host tag; CLI arg is now the hostname as
  tagged by Telegraf rather than a sanitized schema suffix
- Also renames so-show-stats -> so-stats-show
2026-04-16 15:40:54 -04:00

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# Copyright Security Onion Solutions LLC and/or licensed to Security Onion Solutions LLC under one
# or more contributor license agreements. Licensed under the Elastic License 2.0 as shown at
# https://securityonion.net/license; you may not use this file except in compliance with the
# Elastic License 2.0.
{% from 'allowed_states.map.jinja' import allowed_states %}
{% if sls.split('.')[0] in allowed_states %}
{% from 'vars/globals.map.jinja' import GLOBALS %}
{% set TG_OUT = (GLOBALS.telegraf_output | default('INFLUXDB')) | upper %}
{% if TG_OUT in ['POSTGRES', 'BOTH'] %}
# Provision the shared group role and schema once. Every per-minion role is a
# member of so_telegraf, and each Telegraf connection does SET ROLE so_telegraf
# (via options='-c role=so_telegraf' in the connection string) so tables created
# on first write are owned by the group role and every member can INSERT/SELECT.
postgres_telegraf_group_role:
cmd.run:
- name: |
docker exec -i so-postgres psql -v ON_ERROR_STOP=1 -U postgres -d so_telegraf <<'EOSQL'
DO $$
BEGIN
IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = 'so_telegraf') THEN
CREATE ROLE so_telegraf NOLOGIN;
END IF;
END
$$;
GRANT CONNECT ON DATABASE so_telegraf TO so_telegraf;
CREATE SCHEMA IF NOT EXISTS telegraf AUTHORIZATION so_telegraf;
GRANT USAGE, CREATE ON SCHEMA telegraf TO so_telegraf;
EOSQL
- require:
- docker_container: so-postgres
{% set users = salt['pillar.get']('postgres:auth:users', {}) %}
{% for key, entry in users.items() %}
{% if key.startswith('telegraf_') and entry.get('user') and entry.get('pass') %}
{% set u = entry.user %}
{% set p = entry.pass | replace("'", "''") %}
postgres_telegraf_role_{{ u }}:
cmd.run:
- name: |
docker exec -i so-postgres psql -v ON_ERROR_STOP=1 -U postgres -d so_telegraf <<'EOSQL'
DO $$
BEGIN
IF NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = '{{ u }}') THEN
EXECUTE format('CREATE ROLE %I WITH LOGIN PASSWORD %L', '{{ u }}', '{{ p }}');
ELSE
EXECUTE format('ALTER ROLE %I WITH PASSWORD %L', '{{ u }}', '{{ p }}');
END IF;
END
$$;
GRANT CONNECT ON DATABASE so_telegraf TO "{{ u }}";
GRANT so_telegraf TO "{{ u }}";
EOSQL
- require:
- cmd: postgres_telegraf_group_role
{% endif %}
{% endfor %}
{% endif %}
{% else %}
{{sls}}_state_not_allowed:
test.fail_without_changes:
- name: {{sls}}_state_not_allowed
{% endif %}