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matrix-docker-ansible-deploy/roles/matrix-prometheus-postgres-exporter/tasks/init.yml
snailed c77f2b8a64
Make http_host_bind_port vars more useful (#1984)
* if variable to bind an exporter container to a host port is set, have matrix-domain.conf (nginx) support this

* manipulate some variables to account for just port numbers or 0.0.0.0 IPs

* Make sure to use the right variable in the init.yml files

* Update roles/matrix-prometheus-node-exporter/tasks/init.yml

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Update roles/matrix-prometheus-postgres-exporter/tasks/init.yml

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* remove extraneous variables and whitespace

Co-authored-by: Luca Bilke <luca@gmail.com>
Co-authored-by: Slavi Pantaleev <slavi@devture.com>
2022-07-28 16:11:42 +03:00

42 lines
2.4 KiB
YAML

---
- ansible.builtin.set_fact:
matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-prometheus-postgres-exporter.service'] }}"
when: matrix_prometheus_postgres_exporter_enabled | bool
- block:
- name: Fail if matrix-nginx-proxy role already executed
ansible.builtin.fail:
msg: >-
Trying to append postgres-exporter's reverse-proxying configuration to matrix-nginx-proxy,
but it's pointless since the matrix-nginx-proxy role had already executed.
To fix this, please change the order of roles in your playbook,
so that the matrix-nginx-proxy role would run after the matrix-prometheus-postgres-exporter role.
when: matrix_nginx_proxy_role_executed | default(False) | bool
- name: Generate postgres-exporter metrics proxying configuration for matrix-nginx-proxy (matrix.DOMAIN/metrics/postgres-exporter)
ansible.builtin.set_fact:
matrix_prometheus_postgres_exporter_nginx_metrics_configuration_block: |
location /metrics/postgres-exporter {
{% if matrix_nginx_proxy_enabled | default(False) %}
{# Use the embedded DNS resolver in Docker containers to discover the service #}
resolver 127.0.0.11 valid=5s;
set $backend "matrix-prometheus-postgres-exporter:9187";
proxy_pass http://$backend/metrics;
{% elif matrix_prometheus_postgres_exporter_matrix_nginx_proxy_not_enabled_proxy_pass_host != '' %}
proxy_pass http://{{ matrix_prometheus_postgres_exporter_matrix_nginx_proxy_not_enabled_proxy_pass_host }}/metrics;
{% else %}
return 404 "matrix-nginx-proxy is disabled and no host port was bound to the container, so metrics are unavailable";
{% endif %}
}
- name: Register postgres-exporter metrics proxying configuration with matrix-nginx-proxy (matrix.DOMAIN/metrics/postgres-exporter)
ansible.builtin.set_fact:
matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks: |
{{
matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks | default([])
+
[matrix_prometheus_postgres_exporter_nginx_metrics_configuration_block]
}}
when: matrix_prometheus_node_exporter_enabled | bool and matrix_prometheus_node_exporter_metrics_proxying_enabled | bool