Add GPU monitoring services and configurations

- Create systemd service templates for llama_exporter, nvidia_exporter, and podman.
- Add Prometheus configuration template for GPU metrics scraping.
- Introduce variables for GPU monitoring role in main.yml.
- Implement tasks for syncing llama models, including user setup and package installation.
- Update podman tasks to ensure proper sudo access and lingering for the podman user.
- Modify inventory to include gpu_monitoring group.
- Add Terraform modules for deploying Vaultwarden, including ingress and service configurations.
- Create Grafana dashboard for real-time GPU monitoring metrics.
- Update secrets and environment files to include Vaultwarden admin token.

ansible/roles/gpu_monitoring/templates/prometheus.yml.j2

@@ -0,0 +1,30 @@
+global:
+  scrape_interval: {{ prometheus_scrape_interval }}
+  evaluation_interval: {{ prometheus_evaluation_interval }}
+  scrape_timeout: {{ prometheus_scrape_timeout }}
+
+scrape_configs:
+  - job_name: prometheus
+    static_configs:
+      - targets: ["localhost:{{ prometheus_container_port }}"]
+
+  - job_name: nvidia-gpu
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["{{ prometheus_host_gateway }}:{{ nvidia_exporter_port }}"]
+        labels:
+          datacenter: "{{ inventory_hostname }}"
+
+  - job_name: amdgpu_exporter
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["{{ prometheus_host_gateway }}:{{ amd_exporter_port }}"]
+        labels:
+          datacenter: "{{ inventory_hostname }}"
+
+  - job_name: llama_exporter
+    metrics_path: /metrics
+    static_configs:
+      - targets: ["{{ prometheus_host_gateway }}:{{ llama_exporter_port }}"]
+        labels:
+          datacenter: "{{ inventory_hostname }}"