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Code Block
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
 
 
source /etc/network/interfaces.d/*
 
# The loopback network interface
auto lo
iface lo inet loopback
 
# The primary network interface 
auto enp0s3
iface enp0s3 inet static
        address 10.0.2.100
        netmask 255.255.255.0
        network 10.0.2.0
        broadcast 10.0.2.255
        gateway 10.0.2.1
        dns-nameservers 10.0.2.1 8.8.8.8


Disable SWAP

> swapoff > sudo swapoff -va

> sudo vi /etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=e7b204f7-9f41-42d4-b55f-292990f4137a /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
#UUID=9ca9f4cb-876e-4e23-91a4-2f543b5537ac none            swap    sw              0       0

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> sudo kubeadm init --apiserver-advertise-address 19210.1680.562.100 --pod-network-cidr 192.168.0.0/16network-cidr 192.168.0.0/16

Code Block
[init] Using Kubernetes version: v1.13.1
[preflight] Running pre-flight checks
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Activating the kubelet service
[certs] Using certificateDir folder "/etc/kubernetes/pki"
[certs] Generating "ca" certificate and key
[certs] Generating "apiserver-kubelet-client" certificate and key
[certs] Generating "apiserver" certificate and key
[certs] apiserver serving cert is signed for DNS names [k8master kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.96.0.1 10.0.2.100]
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate and key
[certs] etcd/server serving cert is signed for DNS names [k8master localhost] and IPs [10.0.2.100 127.0.0.1 ::1]
[certs] Generating "apiserver-etcd-client" certificate and key
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer serving cert is signed for DNS names [k8master localhost] and IPs [10.0.2.100 127.0.0.1 ::1]
[certs] Generating "etcd/healthcheck-client" certificate and key
[certs] Generating "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
[kubeconfig] Writing "admin.conf" kubeconfig file
[kubeconfig] Writing "kubelet.conf" kubeconfig file
[kubeconfig] Writing "controller-manager.conf" kubeconfig file
[kubeconfig] Writing "scheduler.conf" kubeconfig file
[control-plane] Using manifest folder "/etc/kubernetes/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
[control-plane] Creating static Pod manifest for "kube-controller-manager"
[control-plane] Creating static Pod manifest for "kube-scheduler"
[etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
[apiclient] All control plane components are healthy after 20.009880 seconds
[uploadconfig] storing the configuration used in ConfigMap "kubeadm-config" in the "kube-system" Namespace
[kubelet] Creating a ConfigMap "kubelet-config-1.13" in namespace kube-system with the configuration for the kubelets in the cluster
[patchnode] Uploading the CRI Socket information "/var/run/dockershim.sock" to the Node API object "k8master" as an annotation
[mark-control-plane] Marking the node k8master as control-plane by adding the label "node-role.kubernetes.io/master=''"
[mark-control-plane] Marking the node k8master as control-plane by adding the taints [node-role.kubernetes.io/master:NoSchedule]
[bootstrap-token] Using token: i25b7g.0rowxx40128kpf0n
[bootstrap-token] Configuring bootstrap tokens, cluster-info ConfigMap, RBAC Roles
[bootstraptoken] configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials
[bootstraptoken] configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token
[bootstraptoken] configured RBAC rules to allow certificate rotation for all node client certificates in the cluster
[bootstraptoken] creating the "cluster-info" ConfigMap in the "kube-public" namespace
[addons] Applied essential addon: CoreDNS
[addons] Applied essential addon: kube-proxy
Code Block
...
Your Kubernetes master has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

You can now join any number of machines by running the following on each node
as root:


  kubeadm join 19210.1680.562.100:6443 --token 69sqqpi25b7g.yelc6ct7o3v3uoqp0rowxx40128kpf0n --discovery-token-ca-cert-hash sha256:03b55f52661338d761e8dd68203b738f3e126428cda239db81c2723a7bccba83
92b2711cb1d1f7da7c6536991321a4c5224e05490da8ef07a7512372cddc9223


Record the kubeadm join command! 

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Code Block
kubectl get pods -o wide --all-namespaces

NAMESPACE     NAME                               READY   STATUS    RESTARTS   AGE    IP          NODE       NOMINATED NODE   READINESS GATES
kube-system   coredns-86c58d9df4-8zk5t           0/1     Pending   0          2d3h   <none>      <none>     <none>           <none>
kube-system   coredns-86c58d9df4-tsftk           0/1     Pending   0          2d3h   <none>      <none>     <none>           <none>
kube-system   etcd-k8master                      1/1     Running   1          2d3h   10.0.32.15100   k8master   <none>           <none>
kube-system   kube-apiserver-k8master            1/1     Running   1          2d3h   10.0.32.15100   k8master   <none>           <none>
kube-system   kube-controller-manager-k8master   1/1     Running   1          2d3h   10.0.32.15100   k8master   <none>           <none>
kube-system   kube-proxy-88gdq                   1/1     Running   1          2d3h   10.0.32.15100   k8master   <none>           <none>
kube-system   kube-scheduler-k8master            1/1     Running   1          2d3h   10.0.32.15100   k8master   <none>           <none>

...


Install Flannel Network Plugin
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