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Kubernetes CoreOS

This how-to guide demostrates how to setup Google Kubernetes on CoreOS

Quick Start

The following steps will setup a single node Kubernetes cluster. For a more robust setup using cloud-config see the Installation Guide.

Install Kubernetes binaries

sudo mkdir -p /opt/bin
sudo wget https://storage.googleapis.com/kubernetes/binaries.tar.gz
sudo tar -xvf binaries.tar.gz -C /opt/bin

Add the Kubernetes systemd units

git clone https://github.com/kelseyhightower/kubernetes-coreos.git
sudo cp kubernetes-coreos/units/* /etc/systemd/system/

Start the Kubernetes services

sudo systemctl start apiserver
sudo systemctl start scheduler
sudo systemctl start controller-manager
sudo systemctl start kubelet
sudo systemctl start proxy

Running commands remotely

Setup a SSH tunnel to the Kubernetes API Server.

sudo ssh -f -nNT -L 8080:127.0.0.1:8080 core@${APISERVER}

Download a kubecfg client

Darwin

curl -o /usr/local/bin/kubecfg https://storage.googleapis.com/kubernetes/darwin/kubecfg
chmod +x /usr/local/bin/kubecfg

Linux

wget https://storage.googleapis.com/kubernetes/kubecfg -O /usr/local/bin/kubecfg

Issue commands remotely using the kubecfg command line tool.

kubecfg list /pods
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Comments (3)
nik786
15 days ago

wget https://storage.googleapis.com/kubernetes/binaries.tar.gz
This command does nt work.so not able to download binaries.

2017-08-03 12:55:05 ERROR 403: Forbidden

mralexc
2 years ago

Hi, sorry if is a basic question, but following the steps , when I try to add the Kubenetes Systemd units appears an error saying "cp: cannot stat 'kubernetes-coreos/units/*': No such file or directory". Effectively the units directory doesn´t exists, and obviously can´t start the services.
Thanks for help.