pirate-station/HANDOFF.md

Pirate Station - Development Handoff

Date: 2026-02-03 Phase: Phase 1 (Foundation) Complete Next: Phase 2 (CLI Tool) Environment: Moving from dev machine to Raspberry Pi

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Current Status

✓ Phase 1: Foundation Complete

All code and configurations are ready. Docker runtime verification deferred to Pi deployment due to corporate proxy blocking Docker Hub access on dev machine.

Commits:

• 2691ded - Go project with HTTP server and health check
• 38edbf6 - Multi-stage Dockerfile for cross-platform builds
• 257edf5 - Plan 01-01 completion
• 6cbf414 - Docker Compose dev environment
• c09f4d7 - Plan 01-02 completion
• c8cd06b - Phase 1 completion metadata

Requirements Delivered:

• ✓ INFRA-01: Docker container isolation design (runtime verification deferred)
• ✓ INFRA-02: Single binary Go backend (fully verified)

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What Was Built

Go HTTP Server

• Location: cmd/server/main.go, internal/health/handler.go
• Port: 32768 (high port to avoid Pi service conflicts)
• Endpoints:
  • / - Returns "Pirate Station API"
  • /health - Returns healthy when /data mounted, unhealthy otherwise
• Binary Size: 4.4MB (amd64), 4.2MB (arm64) - stripped static binary
• Dependencies: Go stdlib only (no external packages)

Docker Configuration

• Dockerfile: docker/Dockerfile

  • Multi-stage build (golang:1.25-bookworm → debian:bookworm-slim)
  • CGO_ENABLED=0 for static binary
  • Non-root user (appuser, UID 10001)
  • Volume mount at /data
  • Multi-arch support via buildx (amd64 + arm64)

• Compose: docker-compose.yml

  • Dev environment with hot reload
  • Bind mount for live editing
  • Named volume for persistent data

• Hot Reload: .air.toml

  • Watches Go files for changes
  • Rebuilds automatically to tmp/server

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Known Blockers

Docker Hub Registry Access

Impact: Cannot build/test Docker images on dev machine Cause: Corporate proxy blocks registry-1.docker.io Status: Deferred to Pi deployment

Resolution Options:

1. Build on Pi (Recommended) - Pi network config may allow registry access
2. Configure proxy - Set HTTP_PROXY/HTTPS_PROXY in Docker daemon
3. Use mirror registry - Modify Dockerfile to use gcr.io or quay.io
4. Manual base images - Pre-pull images on different network

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First Run on Raspberry Pi

Prerequisites

• Git configured on Pi
• Docker installed
• Go 1.22+ installed (for local builds)
• Gitea set up (for future image pushes)

Steps

1. Clone repository on Pi:

   git clone <gitea-url>/acty/pirate-station.git
   cd pirate-station
   

2. Verify Go build works:

   go build -o tmp/server ./cmd/server
   ./tmp/server
   # In another terminal:
   curl http://localhost:32768/
   curl http://localhost:32768/health
   

3. Build Docker image:

   docker build -f docker/Dockerfile -t pirate-station:latest .
   

   If build succeeds, check image size:

   docker images pirate-station:latest --format "{{.Size}}"
   # Should be under 150MB
   

4. Test container isolation:

   # Create test data volume
   docker volume create pirate-data
   
   # Run container
   docker run -d --name pirate-test -p 32768:32768 -v pirate-data:/data pirate-station:latest
   
   # Test endpoints
   curl http://localhost:32768/
   curl http://localhost:32768/health
   
   # Verify health returns "healthy" (volume is mounted)
   
   # Cleanup
   docker stop pirate-test
   docker rm pirate-test
   

5. Test dev environment:

   docker compose up --build
   # Server should start on port 32768
   # Edit cmd/server/main.go and watch for auto-rebuild
   

6. Multi-arch build (optional):

   docker buildx create --name pirate-builder --use
   docker buildx build --platform linux/amd64,linux/arm64 \
     -f docker/Dockerfile \
     -t gitea.local/acty/pirate-station:latest \
     --push .
   

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File Structure

pirate-station/
├── cmd/
│   └── server/
│       └── main.go              # HTTP server entry point
├── internal/
│   └── health/
│       └── handler.go           # Health check endpoint
├── docker/
│   └── Dockerfile               # Multi-stage container build
├── .planning/                   # GSD planning artifacts
│   ├── PROJECT.md               # Project definition
│   ├── ROADMAP.md               # 6-phase roadmap
│   ├── REQUIREMENTS.md          # 21 v1 requirements
│   ├── STATE.md                 # Current progress
│   └── phases/
│       └── 01-foundation/
│           ├── 01-CONTEXT.md    # Phase 1 decisions
│           ├── 01-RESEARCH.md   # Go/Docker research
│           ├── 01-01-PLAN.md    # Plan 1: Go + Dockerfile
│           ├── 01-01-SUMMARY.md # Plan 1 completion report
│           ├── 01-02-PLAN.md    # Plan 2: Compose + verification
│           ├── 01-02-SUMMARY.md # Plan 2 completion report
│           └── 01-VERIFICATION.md # Phase verification report
├── docker-compose.yml           # Dev environment
├── .air.toml                    # Hot reload config
├── .dockerignore                # Build context exclusions
├── go.mod                       # Go module definition
└── go.sum                       # Dependency checksums

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Next Steps: Phase 2 - CLI Tool

Goal: Admin can manage user accounts via CLI

Requirements:

• CLI-01: Create user account
• CLI-02: Delete user account
• CLI-03: Change user password
• CLI-04: List all users

Before planning Phase 2:

Run /gsd:discuss-phase 2 to gather context and make decisions about:

• User storage format (SQLite, JSON, etc.)
• Password hashing algorithm (bcrypt vs argon2)
• CLI tool structure (subcommands vs flags)
• Where user database lives (in /data volume)

Or skip directly to planning:

Run /gsd:plan-phase 2 if you want to proceed without discussion.

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Key Decisions Made

Decision	Rationale
Go stdlib only	Minimize binary size, maintain simplicity
Port 32768	High port avoids Pi service conflicts
Debian slim base	Better debugging vs Alpine, acceptable size
Health check verifies /data	Enables orchestration readiness probes
Static binary (CGO_ENABLED=0)	True portability across platforms
Non-root container user	Security best practice
Multi-stage Dockerfile	95% smaller image vs single-stage
Docker Compose for dev	Bind mount + hot reload for fast iteration

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Commands Reference

Development

# Local Go build and run
go build -o tmp/server ./cmd/server
./tmp/server

# Dev environment with hot reload
docker compose up --build

# Test endpoints
curl http://localhost:32768/
curl http://localhost:32768/health

Docker Production

# Build image
docker build -f docker/Dockerfile -t pirate-station:latest .

# Run container
docker run -d -p 32768:32768 -v pirate-data:/data pirate-station:latest

# Multi-arch build
docker buildx build --platform linux/amd64,linux/arm64 \
  -f docker/Dockerfile -t pirate-station:multiarch .

GSD Commands

# Resume project
/gsd:resume-work

# Check progress
/gsd:progress

# Plan next phase
/gsd:discuss-phase 2   # Gather context first
/gsd:plan-phase 2      # Create execution plan

# Execute phase
/gsd:execute-phase 2   # Run all plans in phase

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Verification Checklist for Pi

When you first run on Pi, verify these items to confirm Phase 1 is fully complete:

• Go binary compiles on Pi
• Server starts and responds on port 32768
• Health endpoint returns correct status
• Docker image builds successfully (no registry errors)
• Image size is under 150MB
• Container runs as non-root user (appuser)
• Container can only access /data volume
• Host filesystem is isolated (cannot read /tmp/host-secret.txt from container)
• Docker Compose dev environment starts
• Hot reload detects Go file changes and rebuilds

Once all items pass, Phase 1 verification is complete and Phase 2 can begin.

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Support

• Planning docs: .planning/ directory
• Verification report: .planning/phases/01-foundation/01-VERIFICATION.md
• Phase summaries: .planning/phases/01-foundation/*-SUMMARY.md
• GSD help: /gsd:help

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Last updated: 2026-02-03 Next session: Raspberry Pi deployment + Phase 2 planning