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Loc Nguyen 513cebe7b7 VMware vSphere Integrated Containers provider (#206 )

* Add Virtual Kubelet provider for VIC

Initial virtual kubelet provider for VMware VIC.  This provider currently
handles creating and starting of a pod VM via the VIC portlayer and persona
server.  Image store handling via the VIC persona server.  This provider
currently requires the feature/wolfpack branch of VIC.

* Added pod stop and delete.  Also added node capacity.

Added the ability to stop and delete pod VMs via VIC.  Also retrieve
node capacity information from the VCH.

* Cleanup and readme file

Some file clean up and added a Readme.md markdown file for the VIC
provider.

* Cleaned up errors, added function comments, moved operation code

1. Cleaned up error handling.  Set standard for creating errors.
2. Added method prototype comments for all interface functions.
3. Moved PodCreator, PodStarter, PodStopper, and PodDeleter to a new folder.

* Add mocking code and unit tests for podcache, podcreator, and podstarter

Used the unit test framework used in VIC to handle assertions in the provider's
unit test.  Mocking code generated using OSS project mockery, which is compatible
with the testify assertion framework.

* Vendored packages for the VIC provider

Requires feature/wolfpack branch of VIC and a few specific commit sha of
projects used within VIC.

* Implementation of POD Stopper and Deleter unit tests (#4)

* Updated files for initial PR

2018-06-04 15:41:32 -07:00

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Kubernetes initial testing notes

Required HW setup:

Ubuntu 16.04
4 CPU
16GB memory
80GB disk
(might need 8CPU/32GB of memory, as the above recommended was quite slow still)

Initial install:

sudo apt-get update
sudo apt-add-repository ppa:juju/stable
sudo apt-add-repository ppa:conjure-up/next
sudo apt update
sudo apt install conjure-up

Configure container hypervisor:

newgrp lxd
sudo lxd init

Walkthrough the config (just hit enter) - select NO when asked to setup IPv6

Point juju at the new hypervisor:

juju bootstrap localhost lxd-test

Start the k8s cluster:

conjure-up canonical-kubernetes

Just hit enter a few times until you get to the summary and hit Q

watch -c juju status --color

Wait for quite a while until the cluster is completely up/active/idle. Can take upwards of an hour!

Finalize setup:

mkdir -p ~/.kube
juju scp kubernetes-master/0:config ~/.kube/config
juju scp kubernetes-master/0:kubectl ~/bin/kubectl

Verify it is working and the cluster is up:

kubectl cluster-info

Example commands:

kubectl run -i -t busybox --image=busybox --restart=Never
kubectl run nginx --image=nginx

Show the running pods:

kubectl get pods

To scale up the cluster:

juju add-unit kubernetes-worker

To show the controller:

juju switch

To destroy the cluster:

juju destroy-controller lxd-test --destroy-all-models

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