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README.md

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-# k8s-cluster
+# Kubernetes cluster
+
+A vagrant script to deploy a Kubernetes cluster.
+
+## Requirements
+* Vagrant
+* Virtualbox
+
+## How to Deploy
+Download the code and execute the following command in the same folder as the Vagrantfile:
+
+```
+vagrant up
+```
+
+It will create 3 nodes (1 master and 2 workers). If more than 2 nodes are
+required, you can add more by editing the servers array in the Vagrantfile.
+Also, the provision create and run nginx service on the cluster.
+
+This process will take some time, so go grab a coffee :)
+
+After all deployment, you should see a list with all running pods in all
+namespaces.
+
+
+## Testing
+Get in to the mater node and run any kubectl command.
+
+```
+vagrant ssh k8s-master
+kubectl get nodes
+```
+
+This last command should show the nodes status.
+
+```
+vagrant@k8s-master:~$ kubectl get nodes
+NAME         STATUS   ROLES    AGE     VERSION
+k8s-master   Ready    master   5m51s   v1.15.3
+k8s-node1    Ready    <none>   3m41s   v1.15.3
+k8s-node2    Ready    <none>   85s     v1.15.3
+```
+
+There is a python script on master vm's home that shows all the pods running. This
+script is executed after the ```vagrant up```.
+
+```
+cd pyclient
+python3 main.py
+```
+
+
+Also, you may open a browser and put 192.168.50.x:30180 to see nginx running.
+Where x may be 10, 11 or 12 as defined on node's IPs.
+
+## Cleanup
+```
+vagrant halt
+vagrant destroy -f
+```

Vagrantfile

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+# -*- mode: ruby -*-
+servers = [
+    {
+        :name => "k8s-master",
+        :type => "master",
+        :box => "ubuntu/xenial64",
+        :ip => "192.168.50.10",
+        :mem => "2048",
+        :cpu => "2"
+    },
+    {
+        :name => "k8s-node1",
+        :type => "node",
+        :box => "ubuntu/xenial64",
+        :ip => "192.168.50.11",
+        :mem => "1024",
+        :cpu => "2"
+    },
+    {
+        :name => "k8s-node2",
+        :type => "node",
+        :box => "ubuntu/xenial64",
+        :ip => "192.168.50.12",
+        :mem => "1024",
+        :cpu => "2"
+    }
+]
+
+Vagrant.configure("2") do |config|
+    servers.each do |opts|
+        config.vm.define opts[:name] do |config|
+            config.vm.box = opts[:box]
+            config.vm.hostname = opts[:name]
+            config.vm.network "private_network", ip: opts[:ip]
+
+            config.vm.provider "virtualbox" do |v|
+                v.name = opts[:name]
+                v.customize ["modifyvm", :id, "--memory", opts[:mem]]
+                v.customize ["modifyvm", :id, "--cpus", opts[:cpu]]
+            end
+            config.vm.provision "shell", path: "scripts/configurebox.sh"
+
+            if opts[:type] == "master"
+                config.vm.provision "shell", path: "scripts/configuremaster.sh"
+                config.vm.provision "file", source: "pyclient", destination: "pyclient"
+            else
+                config.vm.provision "shell", path: "scripts/configurenode.sh"
+            end
+
+            # trigger command on master after the last node is up
+            config.trigger.after :up do |t|
+                t.only_on = "k8s-node2"
+                t.info = "Running after the last node is up"
+                t.run = {inline: "vagrant ssh k8s-master -c 'pip3 install -r pyclient/requirements.txt  && python3 pyclient/main.py'"}
+            end
+        end
+    end
+end