claude-ceo-assistant (Claude Opus 4.7 on Hongming's MacBook)
4b074f631b
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Add MOLECULE_IMAGE_REGISTRY env var to override the registry prefix used by all workspace-template image references. Defaults to ghcr.io/molecule-ai (unchanged for OSS users); set to an ECR URI in production tenants when mirroring to AWS. Why this matters: GitHub suspended the Molecule-AI org on 2026-05-06 with no warning. Production tenants kept running because they had images cached locally, but any tenant restart (AWS health event, redeploy, OS reboot) would have failed at `docker pull ghcr.io/molecule-ai/...` because GHCR returned 401. This change introduces the seam needed to point new pulls at a registry we control (AWS ECR) by flipping a single env var on Railway. Design (RFC: molecule-ai/internal#6): - New `RegistryPrefix()` function in `provisioner/registry.go` reads MOLECULE_IMAGE_REGISTRY, falls back to "ghcr.io/molecule-ai". - New `RuntimeImage(runtime)` returns the canonical ref using the prefix. - `RuntimeImages` map computed at init via `computeRuntimeImages()` so existing callers that range over it still work. - `DefaultImage` likewise computed via `RuntimeImage(defaultRuntime)`. - `handlers.TemplateImageRef()` switched from hardcoded format string to `provisioner.RegistryPrefix()`. - `runtime_image_pin.go::resolveRuntimeImage()` automatically inherits the prefix change because it reads from `provisioner.RuntimeImages[]` and only re-formats the tag suffix to a digest pin. Alternatives rejected (see RFC): - Multi-registry fallback chain (try ECR, fall back to GHCR): GHCR is locked from outbound for our org, so the fallback never works for us. Adds code complexity for no benefit. - Hardcoded ECR-only switch: couples production code to a specific deployment environment. OSS users self-hosting Molecule would need the upstream GHCR. - Self-hosted Harbor / registry-on-Hetzner: adds a component to operate. Not justified at 3-tenant scale; AWS ECR is mature and IAM-integrated. Auth — deliberately NOT changed in this commit: - For GHCR, the existing `ghcrAuthHeader()` reads GHCR_USER/GHCR_TOKEN. - For ECR, EC2 user-data installs `amazon-ecr-credential-helper` and adds a `credHelpers` entry in `~/.docker/config.json` so the daemon resolves ECR credentials via the EC2 instance role on every pull. The Go code needs no auth change. This keeps the diff minimal. Backwards compatibility: - Additive: env unset → identical behavior to today (GHCR). - Existing tests reference literal `ghcr.io/molecule-ai/...` strings; they continue to pass under the default prefix. - `RuntimeImages` map preserved for callers that iterate it. - No interface, schema, API, or migration version bump needed. Security review: - No untrusted input: MOLECULE_IMAGE_REGISTRY is set at deploy time (Railway env, EC2 user-data), not by users. - No expanded data collection or logging changes. - No new permissions: ECR pull permission is a future user-data + IAM role change, separate from this code change. - Worst-case: an attacker who already compromises Railway can swap the registry prefix to a malicious URI — same blast radius as compromising Railway today, no expansion. Tests: - 9 new unit tests in `registry_test.go` covering: default fallback, env override, empty env, all 9 known runtimes, unknown runtime, override-applies-to-all, computeRuntimeImages map population, env reflection, alphabetical ordering pin. - All existing provisioner + handlers tests continue to pass. - Mutation-tested mentally: deleting `if v := os.Getenv(...)` makes TestRegistryPrefix_RespectsEnv fail. Deleting `for _, r := range knownRuntimes` makes TestRuntimeImage_AllKnownRuntimes fail. The test suite would catch a regression of the original failure mode. Rollout plan: this PR is safe to merge with no env change. Production cutover happens by setting MOLECULE_IMAGE_REGISTRY on Railway after the AWS ECR mirror is populated (separate ops change, tracked in issue #6 phases 3b–3f). Tracking: - RFC: molecule-ai/internal#6 - Tasks: #97 (ECR setup), #98 (CP fallback) - Tech debt: runbooks/hetzner-rollout-tech-debt-2026-05-06.md item 7 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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| .. | ||
| cmd | ||
| internal | ||
| migrations | ||
| pkg/provisionhook | ||
| .ci-force | ||
| .gitignore | ||
| .golangci.yaml | ||
| Dockerfile | ||
| Dockerfile.tenant | ||
| entrypoint-tenant.sh | ||
| go.mod | ||
| go.sum | ||