RGJorge/containerflow

v0.1.5 Feature

This release adds 1 notable feature for engineering teams evaluating rollout.

Published 19d Containers & Orchestration

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

bun containerflow containers web devops docker

+4 more

monitoring react self-hosted typescript

Summary

AI summary

Added PNG export of the dashboard graph at 3x retina resolution.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Adds PNG export of dashboard graph at 3x retina resolution. Adds PNG export of dashboard graph at 3x retina resolution. Source: llm_adapter@2026-05-21 Confidence: low	—
Feature	Low	Adds PNG export button in bottom-left to save canvas as PNG. Adds PNG export button in bottom-left to save canvas as PNG. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Feature	Low	Includes dot grid background in export while excluding UI overlays (controls, minimap, edge legend, project filter). Includes dot grid background in export while excluding UI overlays (controls, minimap, edge legend, project filter). Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Feature	Low	Preserves state indication in exported PNG via border color and inner state dot. Preserves state indication in exported PNG via border color and inner state dot. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Dependency	Medium	Adds dependency [email protected] (~20 KB). Adds dependency [email protected] (~20 KB). Source: llm_adapter@2026-05-21 Confidence: low	—
Performance	Medium	PNG export captures current viewport, excluding UI overlays for cleaner output. PNG export captures current viewport, excluding UI overlays for cleaner output. Source: llm_adapter@2026-05-21 Confidence: low	—
Bugfix	Medium	Work‑around: forces node bodies to solid dark fill during PNG capture to prevent dot grid bleed-through. Work‑around: forces node bodies to solid dark fill during PNG capture to prevent dot grid bleed-through. Source: granite4.1:30b@2026-05-22-audit Confidence: low	—
Refactor	Medium	Introduces util src/client/utils/exportPng.ts using html-to-image and manual canvas composition. Introduces util src/client/utils/exportPng.ts using html-to-image and manual canvas composition. Source: llm_adapter@2026-05-21 Confidence: low	—

Full changelog

A new button in the bottom-left controls exports the current canvas view as a PNG. Closes #4.

Added

PNG export of the dashboard graph at 3x retina resolution.
- Filename: containerflow-<hostname>-<timestamp>.png
- Captures the current viewport (use Fit view first to capture the whole graph)
- Includes the dot grid background; excludes UI overlays (controls, minimap, edge legend, project filter)
New util src/client/utils/exportPng.ts with html-to-image + manual canvas composition to work around browser limitations with SVG patterns.

Known limitations

Tailwind ring-* halos and backdrop-filter effects are not preserved in the PNG (browser limitation when serializing DOM to canvas). To keep the export readable, service node bodies are temporarily forced to a solid dark fill during capture so the dot grid doesn't bleed through.
State is still indicated in the PNG via border color and the inner state dot.

Stack

New dependency: [email protected] (~20 KB)

Compatibility

Drop-in upgrade from v0.1.4. No config changes. docker compose pull && docker compose up -d to upgrade.

Full Changelog: https://github.com/RGJorge/ContainerFlow/compare/v0.1.4...v0.1.5

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Earlier breaking changes

v0.1.4 `docker-compose.yml` now uses prebuilt image by default (was: `build: .`).