install kubernetes 1.6 on centos 7.3

install-kubernetes-1-6-on-centos-7-3.md

install kubernetes 1.6 on centos 7.3

Install kubelet, kubeadm, docker, kubectl and kubernetes-cni

1. Install Yum Repo

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://yum.kubernetes.io/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
        https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOF

2. Disable SELinux

setenforce 0

3. Install from yum

yum install -y docker kubelet kubeadm kubectl kubernetes-cni

4. Enable docker and kubelet

systemctl enable docker && systemctl start docker
systemctl enable kubelet && systemctl start kubelet

5. Edit the 10-kubadm.conf see

vi /etc/systemd/system/kubelet.service.d/10-kubeadm.conf

Add the following before "ExeStart="

Environment="KUBELET_EXTRA_ARGS=--cgroup-driver=systemd"

6. Enable Overlay FS

sudo tee /etc/modules-load.d/overlay.conf <<-'EOF'
overlay
EOF

7. Reboot to reload kernel modules

reboot

8. Verify that OverlayFS is enabled:

lsmod | grep overlay
overlay

9. Edit the docker-storage-setup file

vi /etc/sysconfig/docker-storage-setup

add

STORAGE_DRIVER="overlay"

10. Start Docker and Kubelet Services

systemctl start docker
systemctl start kubelet

Hi,
I had done same steps but it's showing an error.

systemctl status kubelet
● kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/etc/systemd/system/kubelet.service; enabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: activating (auto-restart) (Result: exit-code) since Thu 2017-11-16 08:49:03 UTC; 2s ago
Docs: http://kubernetes.io/docs/
Process: 2382 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_SYSTEM_PODS_ARGS $KUBELET_NETWORK_ARGS $KUBELET_DNS_ARGS $KUBELET_AUTHZ_ARGS $KUBELET_CADVISOR_ARGS $KUBELET_CGROUP_ARGS $KUBELET_CERTIFICATE_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=1/FAILURE)
Main PID: 2382 (code=exited, status=1/FAILURE)

Nov 16 08:49:03 master1.com systemd[1]: kubelet.service: main process exited, code=exited, status=1/FAILURE
Nov 16 08:49:03 master1.com systemd[1]: Unit kubelet.service entered failed state.
Nov 16 08:49:03 master1.com systemd[1]: kubelet.service failed.

Perfect! Thanks!
Actually, from your instructions, I made an Ansible playbook, with that I created a basic Cenots7.3/Docker/Kubelet VM. After imaging, this VM, I created a cluster of VMs having Kubelet and Docker running. And then followed these instructions: https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm to start the master node, and join the next ones. Now, I am running k8s v1.8.4. Thanks again.

For any issue you can checkout this documentation
https://github.com/vevsatechnologies/Install-Kubernetes-on-CentOs

Hi, I've followed this and got error Permission denied. This error persists event if I run the command with a privileged user with sudo. I am using CentOs 7

Command
sudo cat <<EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64 enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg EOF

Error:
-bash: /etc/yum.repos.d/kubernetes.repo: Permission denied