yuzutech/kroki v0.34.0 on GitHub

Added

Add support for Lini diagrams (lini), with theme and static options. Local image paths are refused unless KROKI_SAFE_MODE is unsafe (#2169)
Add a page option to TikZ diagrams to render only the specified page in SVG, PNG and JPEG output (#2167)

Changed

BPMN and diagrams.net conversions are now capped (KROKI_BPMN_MAX_CONCURRENCY and KROKI_DIAGRAMSNET_MAX_CONCURRENCY, default 6) to bound Chromium memory usage, and the BPMN, diagrams.net and Excalidraw wait queues are bounded like Mermaid's (KROKI_<SERVICE>_MAX_QUEUE_SIZE, default 100, and KROKI_<SERVICE>_QUEUE_TIMEOUT, default 30s): requests beyond these limits get a 503. KROKI_<SERVICE>_MAX_QUEUE_SIZE can be set to 0 to reject requests immediately when every slot is busy (#2182)

Fixed

Fix the Mermaid service running out of memory after Chromium crashes: a failure while connecting to the browser or opening a page leaked a concurrency slot, until every request waited forever. The wait queue is now also bounded (KROKI_MERMAID_MAX_QUEUE_SIZE, default 100, and KROKI_MERMAID_QUEUE_TIMEOUT, default 30s); rejected requests get a 503 (#2183)
Fix the Excalidraw container becoming unresponsive under load (Runtime.callFunctionOn timed out, Target crashed): pages are now initialized once and reused instead of loading the Excalidraw library for every request, conversions are capped (KROKI_EXCALIDRAW_MAX_CONCURRENCY, default 4) and a render taking longer than KROKI_EXCALIDRAW_CONVERT_TIMEOUT (default 15s) returns a 408 (#2182)
Fix the BPMN and diagrams.net services leaking their browser connection when opening a page failed (#2182)
Fix the Mermaid, BPMN, diagrams.net and Excalidraw containers ignoring SIGTERM: Chrome was closed but the Node.js process kept running (and relaunched Chrome on the next request), so docker stop had to wait for its grace period and kill the container. They now stop accepting connections and exit once in-flight conversions are done, or after 8 seconds (#2182)
Reduce log noise in the Chromium-based companion containers (Mermaid, BPMN, Excalidraw, diagrams.net): Chromium output is no longer written unformatted before the JSON logger, harmless Chromium messages (D-Bus, SharedImageManager, rejected IPC messages, crashpad dump collection) are logged at debug level, other Chromium output is logged as warn instead of error, and diagram syntax errors (already returned as a 400) are logged at debug level instead of error (#2184)

Diagram libraries

Update bpmn-js to 18.31.0 (#2185)
Update Mermaid to 12.2.0 (#2185)

What's Changed

Add page option to TikZ service by @bluelightspirit in #2167
feat(docs): add ZopDay to hosting providers by @muskanbandta23 in #2168
feat(docs): add Pethost to hosting providers by @sadfun in #2171
Add Lini diagram support by @monfa-red in #2169
Track D2, Graphviz and WireViz versions with Renovate by @ggrossetie in #2172
chore(deps): update dependency buildx to v0.38.0 by @ggrossetie in #2175
chore(deps): update dependency org.mockito:mockito-core to v5.24.0 by @ggrossetie in #2177
chore(deps): update dependency bpmn-js to v18.31.0 by @ggrossetie in #2174
chore(deps): update dependency maven to v3.10.0 by @ggrossetie in #2176
chore(deps): update docker/dockerfile docker tag to v1.28 by @ggrossetie in #2179
chore(deps): update mermaid by @ggrossetie in #2178
chore(deps): update build tooling by @ggrossetie in #2173
Fix Mermaid permit leak and bound the conversion queue by @ggrossetie in #2183
chore(deps): update java dependencies by @ggrossetie in #2180
Stabilize the Chromium companions: Excalidraw page pool, bounded queues and clean shutdown by @ggrossetie in #2182
Reduce Chromium log noise in the companion containers by @ggrossetie in #2184
Sync Mermaid and bpmn-js versions and add a maintainer guide by @ggrossetie in #2185

New Contributors

@bluelightspirit made their first contribution in #2167
@muskanbandta23 made their first contribution in #2168
@sadfun made their first contribution in #2171
@monfa-red made their first contribution in #2169

Full Changelog: v0.33.0...v0.34.0