Kubernetes Training Materials

deployment-gethostname.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: gethostname
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: gethostname
    spec:
      containers:
      - name: gethostname
        image: danrjohnson/gethostname:latest
        ports:
        - containerPort: 8080

deployment-nginx.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  replicas: 5
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80

pod-nginx.yaml

apiVersion: v1
kind: Pod
metadata:
  name: nginx
  labels:
    name: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    ports:
      - containerPort: 80

replicaset-nginx.yaml

apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  # modify replicas according to your case
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx 
        image: nginx
        ports:
          - containerPort: 80

service-gethostname.yaml

apiVersion: v1
kind: Service
metadata:
  name: gethostnames
  labels:
    app: gethostname
spec:
  # if your cluster supports it, uncomment the following to automatically create
  # an external load-balanced IP for the frontend service.
  type: LoadBalancer
  ports:
    # the port that this service should serve on
  - port: 8080
  selector:
    app: gethostname

service-nginx.yaml

kind: Service
apiVersion: v1
metadata:
  name: nginx-service
spec:
  selector:
    app: nginx
  ports:
  - protocol: TCP
    port: 80
  type: LoadBalancer

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

Vagrant::DEFAULT_SERVER_URL.replace('https://vagrantcloud.com')

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  config.vm.box = "bento/ubuntu-18.04"

  config.vm.network "forwarded_port", guest: 8443, host: 8443
  config.vm.network "forwarded_port", guest: 8001, host: 8001
  config.vm.network "forwarded_port", guest: 30000, host: 30000

  config.vm.provision "shell", inline: <<-SHELL
    apt-get update
    apt-get install -y apt-transport-https ca-certificates curl software-properties-common
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    apt-key fingerprint 0EBFCD88
    add-apt-repository  "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

    curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
    sudo touch /etc/apt/sources.list.d/kubernetes.list 
    echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list

    apt-get update
    apt-get install -y docker-ce kubectl

    curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.28.2/minikube-linux-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/

    echo "alias minikubestart='sudo minikube start --vm-driver=none'" >> /home/vagrant/.bashrc
    minikube start --vm-driver=none

    mv /root/.kube /home/vagrant/.kube # this will write over any previous configuration
    chown -R vagrant /home/vagrant/.kube
    chgrp -R vagrant /home/vagrant/.kube
    
    mv /root/.minikube /home/vagrant/.minikube # this will write over any previous configuration
    chown -R vagrant /home/vagrant/.minikube
    chgrp -R vagrant /home/vagrant/.minikube

    sed -i 's@root@home\/vagrant@' /home/vagrant/.kube/config
  SHELL
end