From 94f56133bb0035fe85ee9e58d573eb4485e9fa42 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 2 Jun 2021 00:46:12 +0200
Subject: prometheus: initial serverside config

---
 roles/monitoring/prometheus/server/defaults/main.yml     |  3 +++
 roles/monitoring/prometheus/server/tasks/main.yml        | 16 ++++++++++++----
 .../prometheus/server/templates/prometheus.yml.j2        | 13 ++++++++++++-
 3 files changed, 27 insertions(+), 5 deletions(-)

(limited to 'roles/monitoring/prometheus/server')

diff --git a/roles/monitoring/prometheus/server/defaults/main.yml b/roles/monitoring/prometheus/server/defaults/main.yml
index b5d13b5d..ab08a2ff 100644
--- a/roles/monitoring/prometheus/server/defaults/main.yml
+++ b/roles/monitoring/prometheus/server/defaults/main.yml
@@ -4,3 +4,6 @@
 #   ...
 
 prometheus_server_retention: "15d"
+
+prometheus_server_jobs:
+  - node
diff --git a/roles/monitoring/prometheus/server/tasks/main.yml b/roles/monitoring/prometheus/server/tasks/main.yml
index ffbc5ffe..5c649f34 100644
--- a/roles/monitoring/prometheus/server/tasks/main.yml
+++ b/roles/monitoring/prometheus/server/tasks/main.yml
@@ -20,16 +20,18 @@
 
 - name: create configuration directories
   loop:
+  - jobs
   - rules
   - targets
   file:
     path: "/etc/prometheus/{{ item }}"
     state: directory
 
-- name: generate configuration file
-  template:
-    src: prometheus.yml.j2
-    dest: /etc/prometheus/prometheus.yml
+- name: create sub-directroy for all exporter types in jobs directory
+  loop: "{{ prometheus_server_jobs }}"
+  file:
+    path: "/etc/prometheus/jobs/{{ item }}"
+    state: directory
 
 - name: add user for server
   user:
@@ -48,6 +50,12 @@
 ## TODO:
 ## - create CA and certificate/key
 
+- name: generate configuration file
+  template:
+    src: prometheus.yml.j2
+    dest: /etc/prometheus/prometheus.yml
+  notify: restart prometheus
+
 - name: generate systemd service unit
   template:
     src: prometheus.service.j2
diff --git a/roles/monitoring/prometheus/server/templates/prometheus.yml.j2 b/roles/monitoring/prometheus/server/templates/prometheus.yml.j2
index cadc3ef0..007afa90 100644
--- a/roles/monitoring/prometheus/server/templates/prometheus.yml.j2
+++ b/roles/monitoring/prometheus/server/templates/prometheus.yml.j2
@@ -8,4 +8,15 @@ rule_files:
 scrape_configs:
   - job_name: 'prometheus'
     static_configs:
-      - targets: ['localhost:9090']
+    - targets: ['localhost:9090']
+{% for job in prometheus_server_jobs %}
+
+  - job_name: '{{ job }}'
+    metrics_path: /proxy
+    params:
+      module:
+      - {{ job }}
+    file_sd_configs:
+    - files:
+      - "/etc/prometheus/jobs/{{ job }}/*.yml"
+{% endfor %}
-- 
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