- COPY now supports multiple sources: COPY a.txt b.txt /dest/
Last argument is always destination (matches Dockerfile semantics).
- COPY resolves relative destinations against current WORKDIR.
- WRENN_DEFAULT_ROOTFS_SIZE env var (e.g. 5G, 2Gi, 1000M, 512Mi)
controls template rootfs expansion. Used both at agent startup
(EnsureImageSizes) and after FlattenRootfs (shrink then re-expand).
- Pre-build now sets WORKDIR /home/wrenn-user after USER switch.
- Extracted archive files get chmod a+rX for readability.
- Path traversal validation on COPY sources.
- Filter out user-specific env vars (HOME, USER, LOGNAME, SHELL, etc.)
from template default_env so they don't override envd's per-user
resolution. Fixes bash sourcing /root/.bashrc as wrenn-user.
- Keep WRENN_SANDBOX (legitimate runtime flag), only filter per-sandbox
IDs (WRENN_SANDBOX_ID, WRENN_TEMPLATE_ID).
- Add "127.0.0.1 sandbox" to /etc/hosts in wrenn-init.sh so sudo can
resolve the hostname. Fixes "unable to resolve host sandbox" error.
- Move capsule lifecycle buttons (Pause/Resume/Snapshot/Destroy) to the
same row as Stats/Files/Terminal tabs.
- Show vCPU/Memory for all template types with Required/Recommended
tooltips on the user templates page.
Implement three new recipe commands for the admin template builder:
- USER <name>: creates the user (adduser + passwordless sudo), switches
execution context so subsequent RUN/START commands run as that user
via su wrapping. Last USER becomes the template's default_user.
- COPY <src> <dst>: copies files from an uploaded build archive
(tar/tar.gz/zip) into the sandbox. Source paths validated against
traversal. Ownership set to the current USER.
- ENV persistence: accumulated env vars stored in templates.default_env
(JSONB) and injected via PostInit when sandboxes are created from the
template, mirroring Docker's image metadata approach.
Supporting changes:
- Pre-build creates wrenn-user as default (via USER command)
- WORKDIR now creates the directory if it doesn't exist (mkdir -p)
- Per-step progress updates (ProgressFunc callback) for live UI
- Multipart form support on POST /v1/admin/builds for archive upload
- Proto: default_user/default_env fields on Create/ResumeSandboxRequest
- Host agent: SetDefaults calls PostInitWithDefaults on envd
- Control plane: reads template defaults, passes on sandbox create/resume
- Frontend: file upload widget, recipe copy button, keyword colors for
USER/COPY, fixed Svelte whitespace stripping in step display
- Admin panel defaults to /admin/templates instead of /admin/hosts
- Migration adds default_user and default_env to templates and
template_builds tables
Updated the `agentErrToHTTP` switch statement to explicitly catch
`connect.CodeAlreadyExists` (as well as
`connect.CodeFailedPrecondition`)
and return `http.StatusConflict` (409) instead of falling through to the
default 502 Bad Gateway.
Removed the `connect.NewError(connect.CodeInternal, ...)` wrapper in the
Server's MakeDir proxy handler. Previously, this wrapper was catching
specific agent errors (like CodeAlreadyExists) and casting them into
generic Code 13 (Internal) errors, stripping the gRPC metadata.
This change allows the control-plane to act as a transparent pipeline,
ensuring the API gateway can properly interpret and route specific
filesystem failures.
- Add multi-session Terminal tab with xterm.js (session tabs, close, reconnect)
- Keep terminal mounted across tab switches to preserve sessions
- Persist active tab in URL (?tab=terminal) so refresh stays on terminal
- Buffer keystrokes (50ms) to reduce per-character RPC overhead
- Add WebSocket auth via ?token= query param for browser WS connections
- Enable ws:true in Vite dev proxy for WebSocket support
envd fixes (pre-existing bugs exposed by multi-session terminals):
- Fix getProcess tag Range: inverted return values caused early stop when
multiple tagged processes existed, making SendInput fail with "not found"
- Fix multiplexer deadlock: blocking send to cancelled fork's unbuffered
channel prevented process cleanup. Now uses buffered channels (cap 64)
with non-blocking fallback
Wire envd's existing PTY process capabilities through the full stack:
hostagent proto (4 new RPCs: PtyAttach, PtySendInput, PtyResize, PtyKill),
envdclient, sandbox manager, and a new WebSocket endpoint at
GET /v1/sandboxes/{id}/pty with bidirectional JSON message protocol.
Sessions use tag-based identity for disconnect/reconnect support,
base64-encoded PTY data for binary safety, and a 120s inactivity timeout.
After restoring a VM from snapshot, envd had already completed its initial
MMDS poll, so the metadata files in /run/wrenn/ and env vars retained values
from the original sandbox. Call POST /init after WaitUntilReady on both
resume and create-from-template paths to trigger envd to re-read MMDS.
Plumb ListDir, MakeDir, and RemovePath through all layers:
REST API → host agent RPC → envdclient → envd. These endpoints
enable a web file browser for sandbox filesystem interaction.
New endpoints (all under requireAPIKeyOrJWT):
- POST /v1/sandboxes/{id}/files/list
- POST /v1/sandboxes/{id}/files/mkdir
- POST /v1/sandboxes/{id}/files/remove
