From e0e0d626f9b41e7c055fb6a4bfbdc8a375e5c7e1 Mon Sep 17 00:00:00 2001
From: Jacob Babor <jacob@babor.tech>
Date: Wed, 10 Jul 2024 01:13:16 -0500
Subject: [PATCH] Add Minecraft monitoring! This also fixes some duplicate
 alert structures we saw earlier

---
 .../tasks/game/minecraft-createfarming.yml    |  6 ++++++
 roles/prometheus/templates/prometheus.yml.j2  | 20 +++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/playbooks/tasks/game/minecraft-createfarming.yml b/playbooks/tasks/game/minecraft-createfarming.yml
index fbf7715..c066c63 100644
--- a/playbooks/tasks/game/minecraft-createfarming.yml
+++ b/playbooks/tasks/game/minecraft-createfarming.yml
@@ -16,6 +16,12 @@
       - "25565:25565/tcp"
       - "25565:25565/udp"
       - "24454:24454/udp"
+      # Prometheus exporter for Forge
+      # https://www.curseforge.com/minecraft/mc-mods/prometheus-exporter
+      #- "19565:19565/tcp"
+      # Prometheus exporter for Fabric
+      # https://modrinth.com/mod/fabricexporter
+      - "19565:25585/tcp"
     volumes:
       - /data/minecraft/createfarming:/data
   tags: [ docker, minecraft, create, createfarming ]
diff --git a/roles/prometheus/templates/prometheus.yml.j2 b/roles/prometheus/templates/prometheus.yml.j2
index 241ab36..2f0a706 100644
--- a/roles/prometheus/templates/prometheus.yml.j2
+++ b/roles/prometheus/templates/prometheus.yml.j2
@@ -34,6 +34,7 @@ scrape_configs:
     static_configs:
       - targets:
 {% for host in groups['tags_nagios'] %}
+{% set vars = hostvars[host] %}
 {% for service in vars.services %}
 {% for tag in service.tags %}
 {# #}
@@ -63,6 +64,25 @@ scrape_configs:
     static_configs:
       - targets: ['blackbox:9115']
 
+    # This job manages Minecraft servers, when we have them
+  - job_name: "minecraft"
+    static_configs:
+      - targets:
+{% for host in groups['tags_nagios'] %}
+{% set vars = hostvars[host] %}
+{% for service in vars.services %}
+{% for tag in service.tags %}
+{# #}
+{% if tag.slug == "nagios-checkminecraft" %}
+{% for port in service.ports %}
+        - "{{ host }}:{{ port }}"
+{% endfor %}
+{% endif %}
+{# #}
+{% endfor %}
+{% endfor %}
+{% endfor %}
+
     # These two jobs are included for every node in our inventory
   - job_name: "node-exporter"
     static_configs: