Create New Plugin

Add a datasource plugin following the existing patterns.

Files to Create

plugins/{name}/
├── config.go        # Config struct + Validate() + ApplyDefaults()
├── plugin.go        # Implements plugin.Plugin interface
├── examples.go      # Embeds examples.yaml
├── examples.yaml    # Query examples
└── python/{name}.py # Sandbox module (connects via proxy)

Plus:

• pkg/proxy/handlers/{name}.go – Reverse proxy handler

Templates

Copy from plugins/prometheus/ for a simple plugin, or plugins/clickhouse/ for one with schema discovery.

Registration Steps

1. builder.go – Import and add reg.Add({name}plugin.New())
2. builder.go – Add case to buildProxy() type switch
3. pkg/proxy/proxy.go – Add field to Options struct
4. pkg/proxy/proxy.go – Register handler in Start()
5. sandbox/ethpandaops/ethpandaops/init.py – Add to lazy imports
6. Copy Python module to sandbox/ethpandaops/ethpandaops/

Key Rules

• Credentials NEVER go to sandbox – use SandboxEnv() for metadata only
• ProxyConfig() returns credentials for the proxy handler
• Python module reads ETHPANDAOPS_{NAME}_DATASOURCES env var (JSON, no creds)
• Python module calls proxy at /{name}/{instance}/...

Checklist

• Implements all plugin.Plugin methods (see pkg/plugin/plugin.go)
• Proxy handler follows pattern in pkg/proxy/handlers/prometheus.go
• make lint && make test pass
• make docker-sandbox builds