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Diun · on a Docker VPS New release · v4.33.1

Never miss a Docker image update again

🔒 VPS only

A image update notifier powered by Diun, installed and maintained by you. Monitor your registries and get real-time alerts — on your VPS Docker, from our French servers, in compliance with GDPR.

View compatible offers →FAQ
Hosted in FranceDocker MonitoringOpen source (lightweight)GDPR CompliantOfficial publisher image
Overview

What is Diun?

Diun (Docker Image Update Notifier) is a lightweight open source command-line utility written in Go, with a simple mission: to alert you when an update is available for a Docker image you use. Lightweight and self-contained, it integrates naturally into a container infrastructure without adding operational overhead.

Diun can monitor images in several ways: from your running Docker containers, your Docker Swarm or Kubernetes services, a configuration file, or directly by querying a registry (Docker Hub, GitHub Container Registry, GitLab, Quay, private registries). It detects both updates to existing tags and the appearance of new tags.

When a new version is detected, Diun sends a notification via one of its many supported channels — email, Slack, Telegram, Discord, Gotify, webhooks and more. It never updates the containers itself: it leaves the decision and timing of deployment to the administrator, making it an ideal companion for a controlled maintenance approach.

Compatible offers

Host Diun at DINAO

No managed container for Diun: this application is installed on a VPS hosted in France (1 vCPU / 64 Mo / 1 Go minimum).

Diun needs a level of access to the machine that the managed container, shared between several customers, does not give. Two VPS hosted in France: DINAO installs and manages it for you, or you administer it yourself.

Technical reason: mounting the Docker socket (full control of the host).

Option 2 The simplest

Managed VPS with Docker and the application pre-installed

from €28,70 /month excl. VAT

  • Diun installed by DINAO when you order
  • The machine is yours alone: Diun can control Docker on it without affecting any other customer
  • System and Docker managed by DINAO, monitoring included
  • Priority support included (2-hour response time, DINAO business days and hours)
  • Stated, capped resources (2 vCPU, 2 GB, 20 GB): beyond that, a larger size is offered
  • Application updates on request
  • Backups as an option (€20,00 excl. VAT/month)
  • No administrator access to the machine

To use Diun without installing or administering anything.

Order →

Option 3 100% self-managed

VPS Docker

from €11,00 /month excl. VAT

  • Your virtual machine, full administrator access
  • Docker pre-installed, control panel of your choice
  • Free to install Diun or any other application, including those that drive Docker
  • Delivered empty: you install and maintain Diun yourself (or DINAO installs it on quotation)
  • No backup by default (optional: €20,00 excl. VAT/month)
  • No management service by default (optional from €55,00 excl. VAT/month); monitoring as an option

By default you keep full control; but without an additional service, you handle everything: maintenance, configuration, deployment.

Discover the VPS Docker →
CriterionManaged VPS with Docker and the application pre-installedVPS Docker
Who installs DiunDINAO, when you orderNobody by default: VPS delivered with Docker and, at your choice, Portainer / Dockge, without the application. You install it, or DINAO on quotation
Application updatesDINAO, on requestYou
System and DockerDINAO, without a control panel: one VPS, one applicationYou: no management service by default (optional: €55,00 or €75,00 excl. VAT/month, business days)
BackupsOptional: €20,00 excl. VAT/month for 7 days (100 GB quota)None by default; optional: €20,00 excl. VAT/month for 7 days (100 GB quota)
MonitoringIncludedOptional: from €1,00 to €10,00 excl. VAT/month
SupportPriority handling included (2-hour response time, DINAO business days and hours, no guaranteed resolution time)Best effort
IsolationA virtual machine of your own, for this application onlyA virtual machine of your own
ResourcesSized for the OS, Docker and Diun: 2 vCPU, 2 GB, 20 GB, stated as a cap; beyond that, a larger size is offeredRecommended size for Diun: 2 vCPU, 4 GB, 50 GB; can be extended
Administrator access (root)NoYes
Applications that require privileged access to the machineYes: the machine is yours aloneYes
Starting price€28,70 excl. VAT/month€11,00 excl. VAT/month (VPS only, without the application)

Options 2 and 3 sized for Diun (application requirements plus the system and Docker): 2 vCPU, 2 GB, 20 GB for option 2, 2 vCPU, 4 GB, 50 GB for option 3, whose base is larger.

Under the hood

Technical details

vCPU
1 vCPU
ideal : 1 vCPU
Memory
64 Mo
ideal : 128 Mo
Disk
1 Go
ideal : 2 Go
Image : crazymax/diun:latest Registry : docker.io Services : diun Ports : —
Frequently asked questions

You might be wondering…

About Diun 6 questions

Does Diun update my containers automatically?

No, and that's intentional: Diun notifies you that an update is available but never touches your containers. You retain full control over the deployment timing.

Which registries can I monitor?

Docker Hub, GitHub Container Registry, GitLab, Quay, as well as your authenticated private registries. Diun can also read your local Docker containers and Swarm services.

How am I alerted?

Via more than 15 channels: email, Slack, Telegram, Discord, Gotify, custom webhooks… You choose the channel(s) that suit you.

Are my registry credentials secure?

Yes. They are stored encrypted on your VPS, hosted in France, and are never shared with third parties.

Where is the instance hosted?

On the DINAO infrastructure in France, in one of the available datacenters, in an isolated container.

Is this application tested before it is offered?

This application has not yet passed our automatic deployment test. It can still be installed, but we invite you to contact us before ordering: we will then test it as a priority. The deployment template used was last updated on 3 July 2026. Each new version released by the publisher triggers this test again: the date above therefore follows the version actually offered.

Option 2Option 3 On a VPS 7 questions

One answer per option: the two VPS offers do not cover the same things.

Who installs Diun on a VPS?

Managed VPSDINAO, when you order

VPS DockerNobody by default: the VPS is delivered with Docker, without the application. You install it, or DINAO on quotation

Who updates Diun on a VPS?

Managed VPSDINAO, on request

VPS DockerYou

Is the VPS managed?

Managed VPSYes: DINAO manages the system and Docker, without a control panel (one VPS, one application). Monitoring is included

VPS DockerNot by default: you manage the system and Docker. The management service and monitoring can be added as options when ordering

Is my data backed up on a VPS?

Managed VPSAs an option: backup is added when ordering

VPS DockerNone by default; backup can be added as an option when ordering

Do I get administrator (root) access to the VPS?

Managed VPSNo

VPS DockerYes

Do you provide on-call support outside business hours on a VPS?

Managed VPSNo: monitoring is included, interventions take place on business days

VPS DockerNo: monitoring is an option, support is best effort

In which data centre is my service hosted?

In France, in DINAO's private racks within two third-party data centres: Free Pro in Marseille (MAR02) and Euclyde DC1 in Sophia-Antipolis. The operator provides the building, power, cooling and physical security; DINAO operates everything inside its racks, entirely and independently.