Kubernetes

Links:

• https://kubernetes.io/
• https://kubernetes.io/docs/concepts/
• https://www.slideshare.net/imesh/an-introduction-to-kubernetes
• https://www.slideshare.net/InfoQ/building-a-microservices-platform-with-kubernetes
• http://www.dasblinkenlichten.com/understanding-cni-container-networking-interface/
• http://www.dasblinkenlichten.com/using-cni-docker/
• http://www.dasblinkenlichten.com/ipam-dns-cni/
• http://www.dasblinkenlichten.com/getting-started-kubernetes-using-ansible/
• http://www.dasblinkenlichten.com/kubernetes-networking-101-pods/
• http://www.dasblinkenlichten.com/kubernetes-networking-101-services/
• http://www.dasblinkenlichten.com/getting-started-with-calico-on-kubernetes/
• https://thenewstack.io/hackers-guide-kubernetes-networking/

 

• kube-spawn
  

  See https://github.com/kinvolk/kube-spawn/tree/v0.2.1

  Fresh setup of cluster:

  • vagrant up
  • vagrant ssh
  • ./build.sh

  From this you can access the nodes by using sudo machinectl shell kubespawndefault0. In the machine you can use

• Glusterfs
  

  Install glusterfs

  Add gluster repo

  Create the repo file "/etc/yum.repos.d/glusterfs.repo":

  [gluster312]
name=Gluster 3.12
baseurl=http://mirror.centos.org/centos/7/storage/$basearch/gluster-3.12/
gpgcheck=0
enabled=1

  Install packages

  • yum in…
• Internals
  

  Components

  • docker
  • etcd
  • flannel
  • kubelet
  • api server
  • kube controller manager
  • cloud controller manager
  • proxy
  • scheduler
  • cluster DNS

  

  docker

  …
• Kubernetes with vSphere
  

  Here I will describe how to install Kubernetes manually and use the vSphere storage for dynamic provisioning of volumes. The good thing is also that as soon as the claim is removed the vmdk could also be removed from the cluster. No ghost storage is left behind.

  Warning: my blog removes all backslashes at the end of the line and so you'll have to add them yourself... Sorrie

  vSp…

• PostgressHA in Kubernetes
  

  Use 'helm' to install the configuration. 'helm'uses charts for this and I'll create a chart for the PostgressHA cluster.

  Steps

  • Do the steps in https://docs.helm.sh/using-helm/#quick-start to get helm up and running

  Create the Chart

  • helm create postgresha
  • cd postgresha