Implements #406 by adding a --health CLI flag and HEALTHCHECK instruction
to the Dockerfile. This allows Docker and container orchestration platforms
to monitor container health automatically.
Changes:
- Added --health flag that validates configuration and plugin connectivity
- Implemented HealthCheck() method in pkg/poller/commands.go
- Updated Dockerfile with HEALTHCHECK instruction (30s interval, 10s timeout)
- Updated MANUAL.md with --health flag documentation
- Added health check documentation to Docker README
- Added comments to docker-compose examples about built-in health check
The health check:
- Validates configuration file is found and parseable
- Ensures at least one input and one enabled output are configured
- Performs basic validation on enabled outputs
- Returns exit code 0 (healthy) or 1 (unhealthy)
- Runs silently for Docker compatibility
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
InfluxDB 1.8 is the latest 1.x version to support the environment variables specified in the `docker-compose.yml`. If set to `latest` the newer 2.x version of InfluxDB is pulled and the user/db is not initialized.
