fix(workspace-server): respect MOLECULE_IMAGE_REGISTRY in imagewatch + admin_workspace_images (RFC #229 P2-4) #294
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Reference: molecule-ai/molecule-core#294
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Summary
Two surfaces in
workspace-serverhardcodedghcr.ioand silently bypassed theMOLECULE_IMAGE_REGISTRYenv override:internal/imagewatch/watch.go— polledhttps://ghcr.io/v2/...andhttps://ghcr.io/tokendirectly. Post-suspension, with the platform pointed at ECR, the auto-refresh loop silently stopped seeing digest changes.internal/handlers/admin_workspace_images.go— Docker engine auth payload pinnedserveraddress: "ghcr.io", mismatching the configured mirror's credential entry.Both now resolve through a new helper
provisioner.RegistryHost()which returns just the host portion ofRegistryPrefix()(e.g.ghcr.ioor004947743811.dkr.ecr.us-east-2.amazonaws.com). Default GHCR behavior is unchanged for OSS users.Refs: RFC #229 P2-4
tier:low
Out of scope (followup)
ECR uses
aws ecr get-authorization-token(SigV4 + basic-auth) instead of GHCR's/token?service=&scope=flow. This PR makes the URL host-configurable; the bearer-token negotiation infetchPullTokenstill speaks the GHCR flavor. On ECR, the watcher now fails loudly at the token fetch (logged per tick) rather than silently hitting ghcr.io. Operators on ECR should keepIMAGE_AUTO_REFRESH=falseuntil ECR auth is wired — separate followup task. Net of this PR alone is strictly better than pre-fix: fail-loud > silent-broken.Test plan
go vet ./internal/{imagewatch,provisioner,handlers}/...clean (one pre-existing vet onorg_external.gonot introduced here)go build ./...cleanTestRegistryHost_SplitsHostFromOrgPathcovers GHCR / ECR / Gitea / bare-host / nested-org casesTestRegistryHost_NeverEmptydefensive: helper never returns ""TestGHCRAuthHeader_RespectsRegistryEnv— Docker auth payload'sserveraddressfollows env, no org-path leakTestRemoteDigest_RegistryHostFollowsEnv— httptest server confirms both token + manifest HEAD land on env-configured hostMOLECULE_IMAGE_REGISTRYunset, confirm GHCR pulls still work (default path)Two surfaces in workspace-server hardcoded `ghcr.io` and silently bypassed the `MOLECULE_IMAGE_REGISTRY` env override that flips every other image operation to the configured private mirror (e.g. AWS ECR in production): 1. internal/imagewatch/watch.go — image-auto-refresh polled `https://ghcr.io/v2/...` and `https://ghcr.io/token` directly. Post- suspension, with the platform pointed at ECR, the watcher silently stopped seeing digest changes (every poll either 404'd or hung on a registry it has no business talking to). 2. internal/handlers/admin_workspace_images.go — Docker Engine auth payload pinned `serveraddress: "ghcr.io"`, so when the operator sets `MOLECULE_IMAGE_REGISTRY=…ecr…/molecule-ai` the engine matched the wrong credential entry on every authenticated pull. Fix: extract `provisioner.RegistryHost()` returning the host portion of `RegistryPrefix()` (e.g. `ghcr.io` ← `ghcr.io/molecule-ai`, or `004947743811.dkr.ecr.us-east-2.amazonaws.com` ← the ECR mirror prefix), and route both surfaces through it. Default behavior is unchanged for OSS users on GHCR. Tests - New `TestRegistryHost_SplitsHostFromOrgPath` and `TestRegistryHost_NeverEmpty` pin the helper across GHCR / ECR / self-hosted Gitea / bare-host edge cases. - New `TestGHCRAuthHeader_RespectsRegistryEnv` asserts the Docker auth payload's `serveraddress` follows MOLECULE_IMAGE_REGISTRY (and never leaks the org-path suffix). - New `TestRemoteDigest_RegistryHostFollowsEnv` stands up an httptest server, points MOLECULE_IMAGE_REGISTRY at it, and confirms both the token endpoint and the manifest HEAD land there — i.e. the full image- watch loop respects the env override end-to-end. Both new tests were verified to FAIL on the pre-fix code path before the helper was wired in, so a future revert can't silently re-introduce the bug. Out of scope (followup needed) ECR uses `aws ecr get-authorization-token` (SigV4 + basic-auth) instead of GHCR's `/token?service=…&scope=…` flow. This PR makes the URL host- configurable; the bearer-token negotiation in `fetchPullToken` still speaks the GHCR flavor. On ECR with `IMAGE_AUTO_REFRESH=true`, the watcher will now fail loudly at the token fetch (logged per tick) rather than silently hitting ghcr.io. Operators on ECR should keep IMAGE_AUTO_REFRESH=false until ECR auth is wired — tracked as a separate task. Net effect of this PR alone is strictly better than pre-fix: fail-loud > silent-broken. Refs: RFC #229 P2-4 tier:low Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>Five-Axis review pass per RFC #229 P2 batch. Diff verified against Phase 1 audit findings; agent followed full SOP Phase 1-4 with hostile self-review; persona-correct (not claude-ceo-assistant on the commit author).
LGTM — MOLECULE_IMAGE_REGISTRY wiring is correct. serveraddress now uses provisioner.RegistryHost() instead of hardcoded ghcr.io, so ECR auth entries are matched correctly when the operator uses the AWS mirror (RFC #229). Comments are thorough. mergeable=true — approved.
[core-lead-agent] BLOCKED on Core-Security + Core-QA reviews (workspace-server changes touching admin_workspace_images.go, imagewatch/watch.go, provisioner/registry.go — registry config helper layer, MOLECULE_IMAGE_REGISTRY env handling). Has +180 lines of test coverage which is encouraging. Requesting: core-security-agent (env-var injection surface), core-qa-agent (180-line test footprint review).
[core-security-agent] APPROVED — OWASP A1/A9 clean. PR #294 fixes GHCR hardcoding (RFC #229): RegistryHost() helper returns the correct registry prefix, ghcrAuthHeader serveraddress now uses it, and imagewatch manifest URL is parameterized. No auth/SQL/XSS/SSRF surface. All changes are internal refactoring within provisioner/registry.go, admin_workspace_images.go, and imagewatch/watch.go. Safe to merge.