Prepare the Hosts

The following packages have to be installed. If the tdnf command returns “Nothing to do,” the package is already installed.

• Install Kubernetes on all hosts (both photon-master and photon-node).

  tdnf install kubernetes
  

• Install iptables on photon-master and photon-node:

  tdnf install iptables
  

• Open the tcp port 8080 (api service) on the photon-master in the firewall

  iptables -A INPUT -p tcp --dport 8080 -j ACCEPT
  

• Open the tcp port 10250 (api service) on the photon-node in the firewall

  iptables -A INPUT -p tcp --dport 10250 -j ACCEPT
  

• Install Docker on photon-node:

  tdnf install docker
  

• Add master and node to /etc/hosts on all machines (not needed if the hostnames are already in DNS). Make sure that communication works between photon-master and photon-node by using a utility such as ping.

  echo "192.168.121.9	photon-master
  192.168.121.65	photon-node" >> /etc/hosts
  

• Edit /etc/kubernetes/config, which will be the same on all the hosts (master and node), so that it contains the following lines:

  # Comma separated list of nodes in the etcd cluster
  KUBE_MASTER="--master=http://photon-master:8080"
  
  # logging to stderr routes it to the systemd journal
  KUBE_LOGTOSTDERR="--logtostderr=true"
  
  # journal message level, 0 is debug
  KUBE_LOG_LEVEL="--v=0"
  
  # Should this cluster be allowed to run privileged docker containers
  KUBE_ALLOW_PRIV="--allow_privileged=false"