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Rancher

A container management platform built for organizations that deploy containers in production.

  • Infrastructure
  • Network Services
  • Tools & Utilities
A container management platform built for organizations that deploy containers in production. The Docker version of Rancher cannot be made HA (High Availability), however the clusters it creates can be. It is also possible to connect to and use clusters created by Rancher when it is down. Useful as a management interface for deploying, scaling, and editing apps on other systems. (In the cloud, a Raspberry Pi cluster, VMs running k3os, etc.) Perfect for running and managing the apps that you'd rather not go down while maintaining your server.

Platform availability

Available on 2 of 9 platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS (not listed)
  • Proxmox (not listed)
  • Helm
  • Mac (not listed)
  • Windows (not listed)
  • Linux (not listed)

Health score?A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). When the source code has been checked, a fifth factor, security check (20%: automated scan for committed secrets, unsafe desktop-app settings, known-vulnerable dependencies and project hygiene; any serious finding caps it at 20), is added. Factors without data are left out and the rest are rescaled.

84/100 Excellent

Maintained
100last commit 7 days ago
Popular
8825,961 GitHub stars
Easy to install
452 install platforms, install notes, Docker image
Light to run
No data

Based on 3 of 4 factors.

Availability: platform listings confirmed today, links checked 16 days ago

GitHub stars
25,961
Open issues
3367
Last commit
2026-10-06
Latest release
v2.15.2
License
Apache-2.0
Activity
steady

Checked 7 days ago - source: GitHub (rancher/rancher)

Resources & Compatibility

Minimum requirements: 4 GB RAM, 2 CPU core(s). ARM (e.g. Raspberry Pi) is supported.

Checked 15 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Set the address and initial password Before starting Rancher in Docker, set CATTLE_SERVER_URL to the IP or hostname you will type into a browser, and set CATTLE_BOOTSTRAP_PASSWORD (the initial admin password) to a value you will remember. If these are wrong, the UI certificate or first sign-in setup can fail, leaving you unable to reach the dashboard. source
  • Publish ports 80 and 443 When running Rancher in Docker, publish ports 80 and 443 from the container to your machine. Port 443 is the secure web UI, and the example also uses port 80; if these are not open, your browser may not be able to reach Rancher. source
  • Use a reachable Rancher IP If Rancher is on another machine or Docker detects the wrong network address, set CATTLE_RANCHER_HOST to the real IP and port, such as 192.168.1.100:443. Without this, Rancher may advertise an address other devices cannot use, causing connection problems. source

Fetched 5 days ago - each note links to its source

Alternatives (9)

  • Arcane - Docker Management UI - Web-based Docker interface with real-time monitoring, container, image, network and volume management, resource visualization, and intuitiv…
  • Cloudron - Cloudron is a complete solution for managing apps & users on your own server.
  • Coolify - Coolify is an open-source, self-hostable platform for deploying web applications, databases, and managed services as an alternative to Hero…
  • Kubernetes - Kubernetes (K8s) is an open source system for managing containerised applications across multiple hosts.
  • OpenShift - Red Hat OpenShift is a trusted, comprehensive, and consistent platform to develop, modernize, and deploy applications at scale, including t…
  • dockpeek - Dockpeek is a lightweight, self-hosted Docker port dashboard.
  • dokemon - Dokémon is a friendly GUI for managing Docker Containers.
  • openfaas - OpenFaaS is a lightweight serverless platform for deploying event-driven functions and microservices to Kubernetes or a standalone host wit…
  • stackgres-operator

Checked 12 days ago - source: AlternativeTo

Common questions

Which ports and flags are used in the Rancher quick start?

Use the Docker quick-start flags --restart=unless-stopped and --privileged, and publish ports 80 and 443. Then open the browser to the local Rancher address.

Is RancherOS a maintained choice for Rancher node operating systems?

No, the thread says RancherOS is no longer maintained. It suggests using Ubuntu or other common Linux distributions as Rancher node operating systems.

How can I set up a highly available K3s cluster to host Rancher?

Use Terraform to create a K3s cluster with HA mode, using at least two VMs, for Rancher hosting and other services.

What self-hosting migration path from Docker/Portainer is discussed?

The thread discusses moving from Docker/Portainer to Kubernetes/Rancher. It also notes that many self-hosters use k3s rather than Rancher.

Why does the Rancher troubleshooting FAQ limit editing a container to its name?

Docker containers are immutable, so their settings are not changeable.

Answers sourced from github.com, rancher.com, www.reddit.com, www.reddit.com, www.reddit.com

Community

Collected 15 days ago - public community threads