What's Up Docker? (WUD)
Keep your containers up-to-date across any orchestrator, automatically and effortlessly.
💡 About WUD
WUD (What's Up Docker?) is a lightweight, proactive container update monitoring and automation tool. It continuously scans your container environments, detects image updates across public and private registries, performs semantic version analysis, and alerts you via your favorite notification channels—or triggers automatic container updates seamlessly.
flowchart LR
W["🔍 <b>WATCHERS</b><br/>Discover running containers<br/><i>Docker, Swarm, Kubernetes, Compose, Nomad...</i>"]
WUD{{"⚡ <b>WUD ENGINE</b><br/>Compare versions & digests"}}
R["📦 <b>REGISTRIES</b><br/>Inspect tags & manifests<br/><i>Docker Hub, GHCR, Private OCI</i>"]
T["🚀 <b>TRIGGERS</b><br/>Notify & Auto-Update<br/><i>Discord, Slack, Compose, MQTT</i>"]
W -->|"Scan"| WUD
WUD <-->|"Inspect"| R
WUD -->|"Execute"| T
✨ Features
- 🔍 Multi-Orchestrator Engine
Monitor standalone Docker daemons, remote Docker engines over TLS, Docker Compose setups, Docker Swarm clusters, native Kubernetes clusters (Deployments, StatefulSets, DaemonSets, CronJobs), or HashiCorp Nomad clusters.
- 📦 Multi-Registry Integration
Zero-config & authenticated support for Docker Hub, GitHub Container Registry (GHCR), AWS ECR, Google GCR/GAR, Azure ACR, Quay, GitLab, Gitea, Forgejo, Codeberg, LinuxServer (LSCR), and any custom/self-hosted OCI registry.
- 🔔 30+ Notification & Automation Triggers
Discord, Matrix, Mattermost, Zulip, XMPP, Telegram, Slack, Signal, WhatsApp, Bark, Prowl, Home Assistant, Gotify, Ntfy, Pushover, Apprise, Webhooks, Kafka, AMQP/RabbitMQ, NATS, Opsgenie, PagerDuty, Uptime Kuma, GitHub Actions, GitLab CI, SMTP email, shell scripts, and native Docker / Compose / Nomad auto-updaters.
- 🔄 Automated Container Updates
Automatically pull new images and recreate containers on demand (Docker, Docker Compose, Nomad).
- ⚡ Registry Webhooks: Registry push notifications, including GitLab Self-Managed, immediately check matching watched images while preserving existing labels and trigger policies.
- 🔎 Central Digest Configuration: Enable digest watching for selected Docker containers by name with
CONTAINERDIGESTS, while preserving container label precedence.
- 🏷️ SemVer & Tag Filtering
Flexible versioning strategies: target semver (major, minor, patch), match custom regular expressions, pin versions, or define include/exclude tag rules.
- 🖥️ Interactive Web UI & REST API
Clean, responsive web dashboard to inspect container statuses, trigger manual update checks, and query data via a full-featured REST API.
- 📊 Prometheus & Grafana Ready
Built-in Prometheus /metrics endpoint and pre-built Grafana dashboards for observability.
- 🔒 Enterprise-Grade Authentication & RBAC
Role-Based Access Control (admin, rw, ro), database-backed user management, personal API tokens, and single sign-on with OpenID Connect (OIDC) (Keycloak, Authentik, Authelia, etc.) or local accounts.
⚡ Quick Start
1. Run with Docker
docker run -d \
--name wud \
-p 3000:3000 \
-e WUD_AUTH_ADMIN_USER="admin" \
-e WUD_AUTH_ADMIN_PASSWORD="MySecurePassword123" \
-v /var/run/docker.sock:/var/run/docker.sock \
getwud/wud:latest
2. Run with Docker Compose
services:
whatsupdocker:
image: getwud/wud:latest
container_name: wud
ports:
- "3000:3000"
environment:
- WUD_AUTH_ADMIN_USER=admin
- WUD_AUTH_ADMIN_PASSWORD=MySecurePassword123
volumes:
- /var/run/docker.sock:/var/run/docker.sock
restart: unless-stopped
🌐 Access the Web UI: Open http://localhost:3000 in your browser (login with admin / MySecurePassword123).
3. Run in One-Shot CLI Mode (CI/CD & Cron)
WUD can also run as a stateless, headless CLI tool without starting the web server or creating a database file:
This is the beginning of the README. Read the rest at the original. Read the full README ↗
