feat: add basic prometheus/grafana setup

dashboard/docker-compose.yml

@@ -0,0 +1,45 @@
+version: '3.8'
+
+services:
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: prometheus
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./targets:/etc/prometheus/targets:ro
+      - prometheus_data:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--web.console.libraries=/etc/prometheus/console_libraries'
+      - '--web.console.templates=/etc/prometheus/consoles'
+      - '--web.enable-lifecycle'
+    extra_hosts:
+      - "host.docker.internal=${HOST_IP}"
+    restart: unless-stopped
+
+  grafana:
+    image: grafana/grafana:latest
+    container_name: grafana
+    ports:
+      - "3000:3000"
+    volumes:
+      - grafana_data:/var/lib/grafana
+      - ./grafana/provisioning:/etc/grafana/provisioning
+      - ./grafana/dashboards:/var/lib/grafana/dashboards
+    environment:
+      - GF_AUTH_ANONYMOUS_ENABLED=true
+      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
+      - GF_AUTH_DISABLE_LOGIN_FORM=true
+      - GF_INSTALL_PLUGINS=grafana-clock-panel
+    extra_hosts:
+      - "host.docker.internal=${HOST_IP}"
+    restart: unless-stopped
+    depends_on:
+      - prometheus
+
+volumes:
+  prometheus_data:
+  grafana_data:

dashboard/launch.sh

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+#!/usr/bin/env bash
+set -e -o pipefail
+
+if [ "$OSTYPE" = "darwin" ]; then
+  HOST_IP="host-gateway"
+elif [ "$OSTYPE" = "linux-gnu" ]; then
+  HOST_IP=$(hostname -I | cut -d " " -f 1)
+else
+  echo "Unsupported OS: $OSTYPE"
+  exit 1
+fi
+
+export HOST_IP
+docker compose up "$@"

dashboard/prometheus.yml

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+# Prometheus configuration file
+
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['host.docker.internal:9090']
+
+  - job_name: 'codex-metrics'
+    file_sd_configs:
+      - files:
+          - '/etc/prometheus/targets/*.json'
+        refresh_interval: 1s
+    scrape_interval: 1s
+    metrics_path: '/metrics'
+    scheme: http