#Kubeadm centos 7 firewall full#

apiserver serving cert is signed for DNS names and IPs Generating 'apiserver' certificate and key Using certificateDir folder '/etc/kubernetes/pki' Writing kubelet configuration to file '/var/lib/kubelet/config.yaml' Writing kubelet environment file with flags to file '/var/lib/kubelet/kubeadm-flags.env'

You can also perform this action in beforehand using 'kubeadm config images pull' This might take a minute or two, depending on the speed of your internet connection Pulling images required for setting up a Kubernetes cluster # systemctl enable kubelet & systemctl start kubelet Create cluster # systemctl enable docker & systemctl start dockerДЄdd Kubernetes YUM repository. # sed -i 's/^SELINUX=enforcing$/SELINUX=permissive/' /etc/selinux/config I created a firewall rule that allowed port 22, along with an internal firewall rule with all the recommended ports.Д¬onfigure iptables to receive bridged network traffic. # systemctl disable firewalld & systemctl stop firewalld Verify the MAC address and product_uuid are unique for every node.

Machine Type: n1-standard-2 (2 vCPUs, 7.5 GB memory).

I created a quick VPC called itsmetommy and three VMs within GCP. YouВ MUSTВ disable swap in order for the kubelet to work properly.

Certain ports are open on your machines.

Unique hostname, MAC address, and product_uuid for every node.

#Kubeadm centos 7 firewall full#

Full network connectivity between all machines in the cluster (public or private network is fine).2 GB or more of RAM per machine (any less will leave little room for your apps).IвЂ™m writing the requirements here, but will go through all the steps below.