feat(docker): add ollama exporter for metrics

Signed-off-by: Rodney Osodo <socials@rodneyosodo.com>

docker-compose/ollama/docker-compose.yaml

@@ -16,6 +16,27 @@ services:
       - ~/docker-volumes/ollama/data:/root/.ollama
       - ~/docker-volumes/ollama/models:/ollama-models
 
+  ollama-exporter:
+    container_name: ollama-exporter
+    image: ghcr.io/maravexa/ollama-exporter:v0.1.2
+    restart: unless-stopped
+    networks:
+      - homelab-network
+    security_opt:
+      - no-new-privileges:true
+    environment:
+      - OLLAMA_URL=http://ollama:11434
+      - LISTEN_ADDR=:5021
+      - POLL_INTERVAL=15s
+      - LOG_LEVEL=info
+      - PROXY_ENABLED=true
+      - PROXY_LISTEN_ADDR=:5022
+    ports:
+      - 5021:5021 # Metrics
+      - 5022:5022 # Proxy
+    depends_on:
+      - ollama
+
   open-webui:
     container_name: open-webui
     image: ghcr.io/open-webui/open-webui:v0.9.5
@@ -26,7 +47,7 @@ services:
       - no-new-privileges:true
     environment:
       - TZ=Africa/Nairobi
-      - OLLAMA_BASE_URL=http://ollama:11434
+      - OLLAMA_BASE_URL=http://ollama-exporter:5022
     depends_on:
       - ollama
     ports: