fixing bug

Signed-off-by: vsoch <vsoch@users.noreply.github.com>

README.md

@@ -113,12 +113,46 @@ $ sudo kubeadm join 192.168.33.13:6443 --token xxxxxxxxxxxxxxxxxxxxxxxxxxx \
 Then go back to the main node, and check your cluster again:
 
 ```bash
-$ kubectl get cluster
+$ kubectl get nodes
+NAME       STATUS   ROLES                  AGE     VERSION
+main       Ready    control-plane,master   10m     v1.23.1
+worker-1   Ready    <none>                 3m11s   v1.23.1
+worker-2   Ready    <none>                 102s    v1.23.1
 ```
 
+Now create a test deployment.
+
 ```bash
 $ kubectl create deployment nginx --image=nginx --port 80
 $ kubectl create deployment webserver --image=nginx --port 80 --replicas=5
+
 To access from the internet we have to expose it as follow
-vagrant@master:~$ kubectl expose deployment webserver --port 80 --type=NodePort
+$ kubectl expose deployment webserver --port 80 --type=NodePort
+```
+
+And then get the ip address:
+
+```bash
+$ kubectl describe services webserver
+Name:                     webserver
+Namespace:                default
+Labels:                   app=webserver
+Annotations:              <none>
+Selector:                 app=webserver
+Type:                     NodePort
+IP Family Policy:         SingleStack
+IP Families:              IPv4
+IP:                       10.96.1.240
+IPs:                      10.96.1.240
+Port:                     <unset>  80/TCP
+TargetPort:               80/TCP
+NodePort:                 <unset>  32502/TCP
+Endpoints:                10.244.1.3:80,10.244.1.4:80,10.244.2.2:80 + 2 more...
+Session Affinity:         None
+External Traffic Policy:  Cluster
+Events:                   <none>
+```
+And get it!
+
+```bash
 ```

Vagrantfile

@@ -1,6 +1,5 @@
-
 Vagrant.configure("2") do |config|
-  config.vm.box = "ubuntu/bionic64"
+  config.vm.box = "ubuntu/focal64"
   config.vm.define "main" do | w |
   w.vm.hostname = "main"
   w.vm.network "private_network", ip: "192.168.33.13"
@@ -17,7 +16,7 @@ Vagrant.configure("2") do |config|
    SHELL
   end
 
-  config.vm.box = "ubuntu/bionic64"
+  config.vm.box = "ubuntu/focal64"
   config.vm.define "worker-1" do | w |
       w.vm.hostname = "worker-1"
       w.vm.network "private_network", ip: "192.168.33.14"
@@ -34,7 +33,7 @@ Vagrant.configure("2") do |config|
      apt-get install -y git wget vim
    SHELL
   end
-  config.vm.box = "ubuntu/bionic64"
+  config.vm.box = "ubuntu/focal64"
   config.vm.define "worker-2" do | w |
       w.vm.hostname = "worker-2"
       w.vm.network "private_network", ip: "192.168.33.15"
@@ -52,3 +51,4 @@ Vagrant.configure("2") do |config|
    SHELL
   end
 end
+

k8s-setup-main.sh

@@ -3,18 +3,17 @@
 #set -Eeuo pipefail
 #trap cleanup SIGINT SIGTERM ERR EXIT
 
-
 IFNAME=$1
 ADDRESS="$(ip -4 addr show $IFNAME | grep "inet" | head -1 |awk '{print $2}' | cut -d/ -f1)"
 sed -e "s/^.*${HOSTNAME}.*/${ADDRESS} ${HOSTNAME} ${HOSTNAME}.local/" -i /etc/hosts
 
-# remove ubuntu-bionic entry
-sed -e '/^.*ubuntu-bionic.*/d' -i /etc/hosts
+# remove ubuntu-focal entry
+sed -e '/^.*ubuntu-focal.*/d' -i /etc/hosts
 sed -i -e 's/#DNS=/DNS=8.8.8.8/' /etc/systemd/resolved.conf
 
 # Update /etc/hosts about other hosts
 cat >> /etc/hosts <<EOF
-192.168.33.13 master
+192.168.33.13 main
 192.168.33.14 worker-1
 192.168.33.15 worker-2
 EOF
@@ -25,15 +24,15 @@ apt-get install containerd -y
 mkdir -p /etc/containerd
 containerd config default  /etc/containerd/config.toml
 
-#install kubectl
+# install kubectl
 apt-get update &&  apt-get install -y apt-transport-https gnupg2 curl
 curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg |  apt-key add -
 echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" |  tee -a /etc/apt/sources.list.d/kubernetes.list
 apt-get update
 apt-get install -y kubelet kubeadm kubectl 
 apt-get install bash-completion
 echo 'source <(kubectl completion bash)' >>~/.bashrc
-#source /usr/share/bash-completion/bash_completion
+# source /usr/share/bash-completion/bash_completion
 kubectl completion bash >/etc/bash_completion.d/kubectl
 
 # Set iptables bridging
@@ -45,11 +44,11 @@ sudo echo '1' > /proc/sys/net/ipv4/ip_forward
 sudo sysctl --system
 
 
-#load a couple of necessary modules 
+# load a couple of necessary modules 
 sudo modprobe overlay
 sudo modprobe br_netfilter
-#disable swaping
-#sed 's/#   /swap.*/#swap.img/' /etc/fstab
-#sudo swapoff -a
+# disable swaping
+# sed 's/#   /swap.*/#swap.img/' /etc/fstab
+# sudo swapoff -a
 
-service systemd-resolved restart
+service systemd-resolved restart