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Automated way of cluster setup added (updated) 

Followed the recommendations in https://github.com/kubernetes/kubernetes.github.io/pull/73
pull/73/head
Ihor Dvoretskyi 2016-04-02 19:46:52 -07:00
parent 7657bf367a
commit 8f032384ec
1 changed files with 16 additions and 10 deletions
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26
docs/getting-started-guides/libvirt-coreos.md
View File

@ -117,23 +117,29 @@ setfacl -m g:kvm:--x ~
By default, the libvirt-coreos setup will create a single Kubernetes master and 3 Kubernetes nodes. Because the VM drives use Copy-on-Write and because of memory ballooning and KSM, there is a lot of resource over-allocation.
There are two major ways of how-to run and configure the libvirt-based Kubernetes cluster on CoreOS instances:
There is both an automated way and a manual, customizable way of setting up libvert Kubernetes clusters on CoreOS.
#### Automated setup
To start and setup your local CoreOS-Kubernetes cluster the following command might be easily runned:
There is an automated setup script on https://get.k8s.io that will download the tarball for Kubernetes and spawn a Kubernetes cluster on a local CoreOS instances that the script creates. To run this script, use wget or curl with the KUBERNETES_PROVIDER environment variable set to libvirt-coreos:
`export KUBERNETES_PROVIDER=libvirt-coreos; wget -q -O - https://get.k8s.io | bash`
```shell
export KUBERNETES_PROVIDER=libvirt-coreos; wget -q -O - https://get.k8s.io | bash
```
or, in favor of curl:
Here is the curl version of this command:
`export KUBERNETES_PROVIDER=libvirt-coreos; curl -sS https://get.k8s.io | bash`
```shell
export KUBERNETES_PROVIDER=libvirt-coreos; curl -sS https://get.k8s.io | bash`
```
Just wait a few minutes, the tarball with the latest Kubernetes release will be downloaded; CoreOS instances will be spawned and Kubernetes cluster on them will be launched.
This script downloads and unpacks the tarball, then spawns a Kubernetes cluster on CoreOS instances with the following characteristics:
Cluster configuration will be the following: 4 KVM/QEMU instances, where 1 instance will act as a Kubernetes Master node and 3 as Minion nodes.
- Total of 4 KVM/QEMU instances
- 1 instance acting as a Kubernetes master node
- 3 instances acting as minion nodes
If you'd like to run this cluster with customized settings, run it in a manual way:
If you'd like to run this cluster with customized settings, follow the manual setup instructions.
#### Manual setup
@ -255,7 +261,7 @@ On Arch:
pacman -S qemu libvirt
```
On Ubuntu 14.04.1:
On Ubuntu 14.04:
```shell
aptitude install qemu-system-x86 libvirt-bin
@ -277,7 +283,7 @@ On Arch:
systemctl start libvirtd
```
On Ubuntu 14.04.1:
On Ubuntu 14.04:
```shell
service libvirt-bin start