Kubernetes Docker cluster manager

• Add google apt-key

  •  curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - 

• Add to apt sources.list

  • cat <<EOF > /etc/apt/sources.list.d/kubernetes.list
    deb http://apt.kubernetes.io/ kubernetes-xenial main
    EOF

• install packages

  • sudo apt-get install -y docker.io kubelet kubeadm kubectl kubernetes-cni
    sudo systemctl enable docker.service

• Got a error for docker certificate, had to delete it to get the docker deamon to start
  • error

    • level=fatal msg="Error creating cluster component ...Bla...Bla...Bla... certificate expired.

  • fix  rm /var/lib/docker/swarm/certificates/swarm-node.* 

• setup kubernetes (k8s) master node

  • sudo kubeadm init

  • error in pre-flight checks

    DOCKER_GRAPH_DRIVER: btrfs

  • fix, edit the /etc/docker/deamon.conf and add devicemapper option, remember "," after options.

    • "storage-driver": "devicemapper",

...