Disable the download button for symlinks and show a dedicated
preview pane explaining the symlink target and suggesting to
navigate to the target file instead. Guard handleDownload against
non-file types as a safety net.
Aligned all dialog boxes to a consistent pattern: same shadow
(--shadow-dialog), animation (fadeUp 0.2s ease), button sizing
(py-2, duration-150), and hover effects. Added template type
indicator dot to CreateCapsuleDialog combobox. Removed accent
gradient bars from templates page inline dialogs.
- envd: reject non-regular files (devices, pipes, sockets) in GetFiles
to prevent infinite reads from /dev/zero, /dev/urandom etc.
- host agent: add context cancellation check in ReadFileStream loop
with proper Connect error codes
- frontend: abort in-flight file reads on file switch, directory
navigation, and component teardown via AbortController
- frontend: guard against abort errors surfacing in UI, use try/finally
for fileLoading state
- 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.
- Rename snapshots route to templates for consistency with sidebar label
- Show vCPU and Memory values for base templates (not just snapshots),
with tooltip distinguishing "Required" vs "Recommended"
- Show recipe copy button in admin build logs
- Admin panel defaults to /admin/templates on entry
- WORKDIR creates directory if not present (mkdir -p)
- Use USER command in pre-build instead of raw adduser
- Fix Svelte whitespace stripping in step keyword display
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.
File browser:
- Add shiki-based syntax highlighting (lazy-loaded, zero initial bundle
impact) with support for 30+ languages
- Cap highlighting at 2000 lines to avoid freezing on large files
- Pre-compute preview lines as derived state instead of re-splitting
on every render
- Add content-visibility: auto on code lines for off-screen skip
- Remove per-line CSS transitions (unnecessary paint on 5000 elements)
- Cap row entrance animations to first 30 entries
Capsules list:
- Pause auto-refresh polling when browser tab is hidden
- Add empty state for search with no results
- Fix error state not clearing on successful refresh
- Fix action menu positioning near viewport edges
- Disable create button when no template selected
Give each provider (Discord, Slack, Teams, Google Chat, Telegram,
Matrix, Webhook) its own distinctive color for badges, row hover
stripes, and dialog tags. Move channel count into the header as a
serif numeral for stronger typographic hierarchy.
Template field is now a filterable dropdown that fetches available
templates on dialog open. Selecting a snapshot auto-fills and disables
vCPU/memory inputs since they must match the original capsule config.
After initial page load animations complete, subsequent filter switches
render instantly (duration: 0) instead of replaying staggered fly-in/out
transitions that caused all rows to flash before filtering took effect.
Adds Page Visibility API to StatsPanel, templates, and capsule detail
pages so polling pauses when the browser tab is hidden. Capsule metrics
now use range-appropriate poll intervals (10s for 5m/10m, up to 120s for
24h) instead of a flat 10s. Chart updates are skipped when the data
fingerprint hasn't changed, avoiding unnecessary Canvas redraws.
Consolidate three identical click-outside $effect blocks into a reusable
useClickOutside helper. Extract duplicated events checkbox list into an
eventsDropdownItems snippet shared by create and edit dialogs. Add brand
SVG icons for Teams, Google Chat, and Matrix providers.
Add lifecycle buttons (pause, resume, snapshot, destroy) to the
individual capsule detail page and refactor both the list and detail
pages to share the new dialog components.
- Cap text preview at 5,000 lines with truncation footer and download link
to prevent browser freeze on large files (300k+ DOM nodes)
- Add request generation counters to discard stale API responses from
rapid directory/file clicking
- Guard initial $effect with hasInitiallyLoaded to prevent double-load
- Add download loading state with spinner and disabled button
- Delay URL.revokeObjectURL by 5s so browser can start download
- Replace btoa/atob with TextEncoder/TextDecoder for binary-safe base64
encoding — fixes crash on multi-byte UTF-8 input (emoji, CJK, accents)
- Auto-reconnect on abnormal WebSocket close while session is live
- Cap concurrent sessions at 8 with disabled "+" button at limit
- Guard all ws.send() calls with try/catch via wsSend() wrapper
- Clean up input flush timer on session close and component destroy
- Close all sessions when capsule stops running (isRunning → false)
- Clean up orphaned display entry if DOM container fails to render
64-entry buffer was too small for high-throughput PTY output (e.g.
ls -laihR /). The consumer couldn't drain fast enough over the RPC
stream, causing the non-blocking send fallback to silently discard
data. 4096 entries (~64MB at 16KB/chunk) handles sustained output
without drops while still preventing deadlock on stuck consumers.
- Merge separate status bar into unified tab bar (one row of chrome instead of two)
- Bump font/button/icon sizes to match rest of capsule page
- VS Code-style tab separators with intelligent hiding around active tab
- Hide tab bar when no sessions exist (empty state has its own CTA)
- Fix xterm background gaps by painting viewport/screen backgrounds
- Increase terminal font from 13px to 14px
- 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.
The small bordered card looked broken and misaligned — now uses a
full-width centered layout with floating icon, matching the app's
empty-state pattern.
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.
- Default to ~ instead of hardcoded /home/user — envd resolves it
to the actual home dir of the configured user
- Pass ~ and ~/... paths through to envd for server-side expansion
- Resolve actual absolute path from response entries for breadcrumbs
- Fall back to / if home dir is empty or doesn't exist
- Fix leftover label prop on admin templates CopyButton
Implements a split-panel file browser: directory tree on the left with
path input and breadcrumb navigation, file preview on the right with
line numbers. Binary/large files (>10MB) show a download prompt instead.
Also adds CopyButton component across capsule, snapshot, and template
pages, and fixes pre-existing type errors in StatsPanel and admin
templates page.
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
