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OpenShell/deploy
Drew Newberry 6dc97171ed feat(sandbox): add image build/push and fix cluster deploy (!34)
Closes #44

## Summary

- Add `nav sandbox image push --dockerfile <path>` command to build and push custom container images into the cluster
- Fix sandbox Docker build failure caused by OpenClaw installer TTY access
- Fix sandbox proxy crash when network namespace is unavailable (fall back to loopback)
- Add e2e test for the full custom image build and sandbox creation flow
- Rename and rewrite BYOC architecture doc to reflect current state

## Changes

### `navigator-bootstrap`
- New `build` module (`src/build.rs`) with `build_and_push_image()` public API
- Builds via bollard `Docker::build_image()`, streams output to caller
- `.dockerignore` support with glob matching, 8 unit tests

### `navigator-cli`
- Added `SandboxImageCommands::Push` subcommand with `--dockerfile`, `--tag`, `--context`, `--build-arg` flags
- Added `test:e2e:custom-image` mise task

### `navigator-sandbox`
- Proxy now falls back to `127.0.0.1:3128` when no network namespace or explicit bind address is available, instead of erroring out

### Docker / Infra
- Sandbox Dockerfile: replaced OpenClaw native installer (`curl | bash`) with `npm install -g openclaw` to avoid `/dev/tty` failures in Docker build

### Documentation
- Renamed `architecture/sandbox-byoc.md` to `sandbox-custom-containers.md`
- Rewrote doc to describe current behavior (CLI usage, push pipeline, supervisor behavior, design decisions) instead of listing implementation changes

### Tests
- Added `e2e/bash/test_sandbox_custom_image.sh` covering image push + sandbox create with custom image
2026-02-22 20:32:18 -08:00
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