[add] prometheus

prometheus/config/alert.yml

@@ -0,0 +1,6 @@
+groups:
+  - name: DemoAlerts
+    rules:
+      - alert: InstanceDown 
+        expr: up{job="services"} < 1 
+        for: 5m 

prometheus/config/prometheus.yml

@@ -0,0 +1,15 @@
+global:
+  scrape_interval: 30s
+  scrape_timeout: 10s
+
+rule_files:
+  - alert.yml
+
+scrape_configs:
+  - job_name: services
+    metrics_path: /metrics
+    static_configs:
+      - targets:
+          - 'prometheus:9090'
+          - 'idonotexists:564'
+

prometheus/docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+
+services:
+  prometheus:
+    image: prom/prometheus:v2.34.0
+    ports:
+      - 9000:9090
+    volumes:
+      - ./prometheus:/etc/prometheus
+      - prometheus-data:/prometheus
+    command: --web.enable-lifecycle  --config.file=/etc/prometheus/prometheus.yml
+
+
+volumes:
+  prometheus-data:

tiddlywiki/docker-compose.yml

@@ -2,7 +2,7 @@ version: '3'
 
 services:
   tiddly:
-    image: tiddlywiki:5.2.0
+    image: tiddlywiki:5.2.2
     build: .
     container_name: tiddlywiki-docker
     restart: unless-stopped