K8s notes

After docker gets installed, it is better to have the regular user be able to do docker command.

sudo gpasswd -a $USER docker

The above command will grant the current user docker permission.

This is the command to pull docker image from gcr.io

docker pull gcr.io/google-containers/hyperkube:v1.9.1

The above command will pull the hyperkube image version v1.9.1 onto your docker environment.

K8S release web site:

https://github.com/kubernetes/kubernetes/releases

It seems that k8s has recommended the following:

run as native services:
  docker, kubelet, and kube-proxy

run as containers:
  etcd, kube-apiserver, kube-controller-manager, and kube-scheduler

hyperkube is a super image which contains kubelet, kube-proxy, kube-controller-manager and kube-scheduler.

You will run docker, kubelet, and kube-proxy outside of a container, the same way you would run any system daemon, so you just need the bare binaries. For etcd, kube-apiserver, kube-controller-manager, and kube-scheduler, we recommend that you run these as containers, so you need the hyperkube image.

Things needed for setting up k8s

etcd:

gcr.io/google-containers/etcd:2.2.1 or
quay.io/coreos/etcd:v2.2.1 

 
k8s:     

gcr.io/google-containers/hyperkube:v1.9.1
BIN_SITE=https://storage.googleapis.com/kubernetes-release/release/
$BIN_SITE/v1.9.1/bin/linux/amd64/kubelet
$BIN_SITE/v1.9.1/bin/linux/amd64/kube-proxy