Every workspace can have children via the regular CreateWorkspace flow
with parent_id set, so a separate handler that bulk-creates from
config.yaml's sub_workspaces (and was non-idempotent — calling it twice
duplicated the team) earned its way out. "Team" is just the state of
having children; expanding/collapsing is purely a canvas-side visual
action that toggles the `collapsed` column via PATCH.
The non-idempotency directly caused tenant-hongming's vCPU starvation:
72 distinct child workspaces accumulated in 4 days, ~14 leaked EC2s
(50 of 64 vCPU consumed by stale teams), every Canvas tabs E2E retry
flaking on RunInstances VcpuLimitExceeded.
What stays:
- TeamHandler.Collapse — still useful; stops + removes children via
StopWorkspaceAuto. Reachable from the canvas Collapse Team button.
(Note: that button currently calls PATCH /workspaces/:id, not the
Collapse endpoint — that's a separate reachability question for
later.)
- findTemplateDirByName helper — kept in team.go pending a relocate
decision; no in-package consumers after Expand.
- The four other paths that create child workspaces continue to work
unchanged: regular POST /workspaces with parent_id, OrgHandler.Import
(recursive tree), Bundle import, scripts.
What goes:
- POST /workspaces/:id/expand route (router.go)
- TeamHandler.Expand method (team.go: ~130 lines)
- 4 TestTeamExpand_* sqlmock tests (team_test.go)
- TestTeamExpand_UsesAutoNotDirectDockerPath AST gate
(workspace_provision_auto_test.go) — pinned a code path that no
longer exists; the generic TestNoCallSiteCallsDirectProvisionerExceptAuto
gate still covers the architectural intent for any future caller.
Follow-up PRs:
- canvas/ContextMenu.tsx: drop the "Expand to Team" right-click button
+ handleExpand callback; users create children via the regular
+ New Workspace dialog with the parent picker (already supported)
- OrgHandler.Import idempotency (skip-if-exists OR replace_if_exists)
— same bug class as the deleted Expand, but on the bulk-tree path
- One-off cleanup script for tenant-hongming's 72 stale workspaces
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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