Rancher Tutorial: Learn Kubernetes Management from Scratch (2026)
Managing multiple Kubernetes clusters across on-premises and cloud was a pain point until Rancher. It handles cluster provisioning, upgrades, monitoring, and access control from a single control plane.
By the end of this tutorial, you will understand how Rancher manages Kubernetes clusters, configure authentication and RBAC for multi-team access, and deploy workloads via the Rancher UI.
Installing Rancher on Kubernetes
Rancher runs on a Kubernetes cluster. The Helm chart installs with cert-manager for TLS. I install on a dedicated 3-node RKE2 cluster. The initial setup wizard configures the server URL and admin password.
helm repo add rancher-stable https://releases.rancher.com/server-charts/stable
helm install rancher rancher-stable/rancher \
--namespace cattle-system --create-namespace \
--set hostname=rancher.example.com
kubectl get pods -n cattle-systemManaging Kubernetes Clusters with Rancher
Rancher provisions clusters on AWS, Azure, GCP, vSphere, or custom infrastructure using RKE or RKE2. It can also import existing clusters. Cluster management includes upgrades, monitoring, backup, and node scaling from the UI.
# Import existing cluster
kubectl apply -f https://rancher.example.com/v3/import/xxxx.yaml
# Rancher UI: Cluster Management -> Create -> CustomProjects, Namespaces, and Multi-Tenancy
Projects group namespaces within a cluster and enforce resource quotas, network policies, and RBAC. I create projects per team. Each project has its own container registry, monitoring, and app catalog. Rancher's multi-cluster apps deploy across multiple clusters.
# Rancher UI:
# Cluster -> Projects/Namespaces -> Create Project
# Set resource quotas and pod security policies per projectAuthentication, RBAC, and Policy Enforcement
Rancher supports LDAP, Active Directory, GitHub, SAML, and OIDC authentication. Global roles define cluster creation permissions. Cluster roles define namespace-level access. Pod Security Policies and OPA Gatekeeper enforce security standards.
# Rancher UI:
# Users & Authentication -> Configure provider
# Set Global Permissions for cluster creation
# Set Cluster Member roles per user/groupApplication Catalog and Marketplace
Rancher's app catalog includes Helm charts from repositories. I use it to deploy monitoring, logging, service mesh, CI/CD tools, and databases with a single click. Custom catalogs point to private Helm repositories for internal applications.
# Rancher UI:
# Apps -> Charts -> Browse catalog
# Select and install monitoring (Prometheus/Grafana)
# Configure values via UI formMonitoring, Logging, and Backup
Rancher Monitoring deploys Prometheus and Grafana. Rancher Logging deploys Elasticsearch, Fluentd, and Kibana. The backup restore operator backs up Rancher and downstream cluster configurations to S3 or local storage.
# Rancher UI:
# Tools -> Monitoring -> Enable
# Tools -> Logging -> Configure
# Tools -> Backups -> Schedule daily backupsFrequently Asked Questions
What is the difference between Rancher and OpenShift?
Rancher is a Kubernetes management platform that works with any CNCF-compliant cluster. OpenShift is Red Hat's full Kubernetes platform with integrated build pipelines and image streams.
Can Rancher manage on-premises clusters?
Yes. Rancher provisions clusters on vSphere, OpenStack, and bare metal using RKE or RKE2. It also imports existing on-premises clusters for unified management.
How does Rancher handle high availability?
Rancher runs as a multi-replica deployment on Kubernetes backed by an external PostgreSQL database. Downstream clusters continue to operate independently if Rancher management goes down.
What is the difference between Rancher and Rancher Desktop?
Rancher manages production Kubernetes clusters. Rancher Desktop is a desktop application for local Kubernetes development using k3s or RKE2.
Originally published on Ayodhyyya. Last updated June 1, 2026.