Kubernetes Local (Minikube + Kubectl)

kubernetes_local.txt

1. Install VirtualBox
  - wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
  - wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -
  - sudo add-apt-repository "deb http://download.virtualbox.org/virtualbox/debian `lsb_release -cs` contrib"
  - sudo apt-get update
  - sudo apt-get install virtualbox-5.2
  - # WARNING load kernel modules - modprob vboxdrv
  - # sudo /sbin/rcvboxdrv setup
  - # sudo /sbin/vboxconfig
  - # sudo apt-get install dkms
  - # sudo apt install --reinstall linux-headers-$(uname -r) virtualbox-dkms dkms
 
2. Install kubectl
  - sudo apt-get update && sudo apt-get install -y apt-transport-https
  - curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
  - echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee -a /etc/apt/sources.list.d/kubernetes.list
  - sudo apt-get update
  - sudo apt-get install -y kubectl
  
3. Install minikube
  - curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.32.0/minikube-linux-amd64 && chmod +x minikube && sudo cp minikube /usr/local/bin/ && rm minikube
  
4. Install kompose
  - curl -L https://github.com/kubernetes/kompose/releases/download/v1.17.0/kompose-linux-amd64 -o kompose
  - chmod +x kompose
  - sudo mv ./kompose /usr/local/bin/kompose

--
 
Minikube commands:

  - minikube start/status/stop => start/status/stop kubernetes cluster (VM VirtualBox)
  - eval $(minikube docker-env) => Configure env vars to connect cluster docker
  - minikube ip => Show Cluster IP
  - minikube dashboard => Create tunnel to open Kubernetes Dashboard
  - minikube addons list => List addons
  - minikube ssh => Open ssh connection to cluster
  - minikube addons enable <addon_name> - Enable addons (ingress)
  
Kubectl commands:

  - kubectl cluster-info => Show cluster info
  - kubectl get servies | pods | deploy | all => Show resources
  - kubectl create/replace -f <yaml_file> => Create/replace resource on cluster
  - kubectl logs <POD | CONTAINER name> => Show logs
  - kubectl config current-context => Show current context
  - kubectl config get-contexts => Show all contexts
  - kubectl config set-context <context_name> => Change current context

Kompose commands:
  - kompose convert -f docker-compose.yaml => Convert docker-compose.yaml to kubernetes yamls
  - kompose -f docker-compose.yaml up | down => Up/Down service to kubernetes from docker-compose.yaml