sergi0g/cup
🥤Docker container updates made easy observed · 2026-08-28
Health v2 · maintenance only
73/100
- Activity 93
- Release rhythm 57
- Longevity 57
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 6.5
- age_days: 809
- days_rel: 285
- days_push: 42
- n_releases_24m: 23
Adoption not part of the score
1340 stars · 25 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Cup is a lightweight Rust utility for checking whether Docker (or Podman) container images have available updates. It offers both a fast CLI and a self-hosted web server with a dashboard and JSON API for integrations.
Use cases
- check which of my docker containers have image updates available
- avoid docker hub rate limits when checking for container updates
- self-hosted dashboard for container image update status
- get container update info as for home assistant or homepage widgets
- run a cron job to check container updates from the terminal
- monitor multiple servers' container updates from one web interface
- lightweight alternative to what's up docker
When to choose
- you want fast, tiny-footprint update checking without pulling large docker images
- you're hitting registry rate limits with other update checkers
- you only need update visibility, not automatic container updates or triggering integrations
- you want a simple CLI plus an optional web dashboard with JSON API
When to avoid
- you need automatic container updates or direct integration triggering (use Watchtower or What's up Docker)
- you need a mature feature-complete tool with extensive ecosystem support
- you don't run Docker or Podman containers
Facets
cli-tool · maturity active
monitoring developer-tools http-server cli self-hosted developer-tools self-hosted cli rust docker-image-updates container-update-checker whats-up-docker-alternative registry-checking rate-limit-friendly -api home-assistant-integration podman-support devops containers linux docker web-server
10 sources
- readme: https://github.com/sergi0g/cup · fetched 2026-08-28 · 30d07b080544
- homepage: https://cup.sergi0g.dev · fetched 2026-08-29 · c48fa31fc602
- site_page: https://cup.sergi0g.dev/docs · fetched 2026-08-29 · a6c97829e892
- site_page: https://cup.sergi0g.dev/docs/installation/docker · fetched 2026-08-29 · 4141493af125
- site_page: https://cup.sergi0g.dev/docs/installation/binary · fetched 2026-08-29 · fe04a81b1a3b
- site_page: https://cup.sergi0g.dev/docs/usage · fetched 2026-08-29 · f20aae334324
- site_page: https://cup.sergi0g.dev/docs/usage/cli · fetched 2026-08-29 · 79d7360c6689
- site_page: https://cup.sergi0g.dev/docs/usage/server · fetched 2026-08-29 · f3fe9c072984
- site_page: https://cup.sergi0g.dev/docs/configuration · fetched 2026-08-29 · b5bc69d5b8cf
- site_page: https://cup.sergi0g.dev/docs/configuration/agent · fetched 2026-08-29 · d0947d07f42b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| sergi0g/cup | main | 73 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem