Makefile to make it easy to build the apps. Better readme files for the whole repo, moved ping_service readme to new name.

ping_service_README.md

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+# Ping Service
+
+A Go-based monitoring service that periodically pings IP addresses from a configurable input source (file, HTTP, or Unix socket), applies cooldown periods to avoid frequent pings, optionally performs traceroute on successes, and outputs JSON results to a destination (file, HTTP, or socket). Includes health checks and metrics.
+
+## Features
+- Reads IPs from file, HTTP endpoint, or Unix socket.
+- Configurable ping interval and per-IP cooldown.
+- Optional traceroute (ICMP/TCP) with max hops.
+- JSON output with ping stats and traceroute details.
+- HTTP health endpoints: `/health`, `/ready`, `/metrics`.
+- Graceful shutdown and verbose logging support.
+
+## Configuration
+Edit `config.yaml`:
+```yaml
+input_file: "http://localhost:8080"  # Or file path or socket
+output_file: "http://localhost:8081" # Or file path or socket
+interval_seconds: 30                 # Poll interval
+cooldown_minutes: 10                 # Min time between same-IP pings
+enable_traceroute: true              # Enable traceroute
+traceroute_max_hops: 30              # Max TTL
+health_check_port: 8090              # Health server port
+```
+
+## Building
+```bash
+go build -o ping_service
+```
+
+## Installation as Service (Linux)
+```bash
+chmod +x install.sh
+sudo ./install.sh
+sudo systemctl start ping-service
+```
+
+- Check status: `sudo systemctl status ping-service`
+- View logs: `sudo journalctl -u ping-service -f`
+- Stop: `sudo systemctl stop ping-service`
+
+## Usage
+Run directly:
+```bash
+./ping_service -config config.yaml -verbose
+```
+
+For testing HTTP I/O:
+- Run `python3 input_http_server.py` (serves IPs on port 8080).
+- Run `python3 output_http_server.py` (receives results on port 8081).
+
+## Health Checks
+- `curl http://localhost:8090/health` (status, uptime, stats)
+- `curl http://localhost:8090/ready` (readiness)
+- `curl http://localhost:8090/metrics` (Prometheus metrics)
+
+Version: 0.0.3
+Dependencies: `go-ping/ping`, `gopkg.in/yaml.v`