mirror of https://github.com/k3s-io/k3s
81 lines
3.6 KiB
Markdown
81 lines
3.6 KiB
Markdown
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# Kubernetes Cluster Admin Guide
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The cluster admin guide is for anyone creating or administering a Kubernetes cluster.
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It assumes some familiarity with concepts in the [User Guide](user-guide.md).
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## Planning a cluster
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There are many different examples of how to setup a kubernetes cluster. Many of them are listed in this
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[matrix](getting-started-guides/README.md). We call each of the combinations in this matrix a *distro*.
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Before chosing a particular guide, here are some things to consider:
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- Are you just looking to try out Kubernetes on your laptop, or build a high-availability many-node cluster? Both
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models are supported, but some distros are better for one case or the other.
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- Will you be using a hosted Kubernetes cluster, such as [GKE](https://cloud.google.com/container-engine), or setting
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one up yourself?
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- Will your cluster be on-premises, or in the cloud (IaaS)? Kubernetes does not directly support hybrid clusters. We
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recommend setting up multiple clusters rather than spanning distant locations.
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- Will you be running Kubernetes on "bare metal" or virtual machines? Kubernetes supports both, via different distros.
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- Do you just want to run a cluster, or do you expect to do active development of kubernetes project code? If the
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latter, it is better to pick a distro actively used by other developers. Some distros only use binary releases, but
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offer is a greater variety of choices.
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- Not all distros are maintained as actively. Prefer ones which are listed as tested on a more recent version of
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Kubernetes.
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- If you are configuring kubernetes on-premises, you will need to consider what [networking
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model](networking.md) fits best.
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- If you are designing for very [high-availability](availability.md), you may want multiple clusters in multiple zones.
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## Setting up a cluster
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Pick one of the Getting Started Guides from the [matrix](getting-started-guides/README.md) and follow it.
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If none of the Getting Started Guides fits, you may want to pull ideas from several of the guides.
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One option for custom networking is *OpenVSwitch GRE/VxLAN networking* ([ovs-networking.md](ovs-networking.md)), which
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uses OpenVSwitch to set up networking between pods across
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Kubernetes nodes.
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If you are modifying an existing guide which uses Salt, this document explains [how Salt is used in the Kubernetes
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project.](salt.md).
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## Upgrading a cluster
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[Upgrading a cluster](cluster_management.md).
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## Managing nodes
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[Managing nodes](node.md).
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## Optional Cluster Services
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* **DNS Integration with SkyDNS** ([dns.md](dns.md)):
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Resolving a DNS name directly to a Kubernetes service.
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* **Logging** with [Kibana](logging.md)
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## Multi-tenant support
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* **Namespaces** ([namespaces.md](namespaces.md)): Namespaces help different
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projects, teams, or customers to share a kubernetes cluster.
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* **Resource Quota** ([resource_quota_admin.md](resource_quota_admin.md))
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## Security
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* **Kubernetes Container Environment** ([container-environment.md](container-environment.md)):
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Describes the environment for Kubelet managed containers on a Kubernetes
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node.
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* **Securing access to the API Server** [accessing the api]( accessing_the_api.md)
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* **Authentication** [authentication]( authentication.md)
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* **Authorization** [authorization]( authorization.md)
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* **Admission Controllers** [admission_controllers]( admission_controllers.md)
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[]()
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[]()
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