Jason Greathouse jgreat

Install with custom script

AMI:

Ubuntu Server 16.04 - ami-91659f4

Size:

t2.medium

Azure Node Driver

Create an cluster with an existing vnet/subnet in your subscription

Credentals

You need to set up an app access (service principal): https://rancher.com/docs/rancher/v1.6/en/hosts/azure/#app-registration

Vnet/Subnet

MySQL Config Tuning

Connections:

First and foremost it is important to not run out of connections from the Rancher Server to the MySQL database server. The threads per server are driven by the thread pool size. So max connections should follow this basic formula:

Number of nodes x Total threads + buffer for non-rancher tasks

Number of nodes: Rancher Management server nodes.
Total Threads: Sum of all thread pools (maximums) found on (http(s):///admin/processes/pools). Default: 150
Buffer: Non-rancher tasks such as monitoring, admin, backups and other ad hoc tasks require connections as well.

Prerequisits

Describe installs for.

rke
kubectl
helm

storageClass with PersistentVolumeClaims are really the way to do storage with Kubernetes.

For Azure There are 3 types of storage avalible.

(Slow, Limited, Going to cause tears) AzureFiles - CIFS share, with all the limitaions of CIFS :(
(Better) Azure Disk (Storage Account) - You can use this type with Azure "Node Driver" VMs in Rancher.
(Best) Azure Disk (Managed) - You will need to create your own VMs that support managed disk with premium storage, then use the "Custom" option.

CA

First we need to generate a CA for signing the website certs.

Generate CA Private Key

openssl genrsa -out ca.key 2048

	PACKER_LOG=1 packer build post.json
	2017/01/02 17:27:46 [INFO] Packer version: 0.12.1
	2017/01/02 17:27:46 Packer Target OS/Arch: linux amd64
	2017/01/02 17:27:46 Built with Go Version: go1.7.3
	2017/01/02 17:27:46 Detected home directory from env var: /home/jgreat
	2017/01/02 17:27:46 Using internal plugin for amazon-instance
	2017/01/02 17:27:46 Using internal plugin for azure-arm
	2017/01/02 17:27:46 Using internal plugin for docker
	2017/01/02 17:27:46 Using internal plugin for file
	2017/01/02 17:27:46 Using internal plugin for profitbricks

	#!/bin/bash

	### kubectl should really allow you to export a singel context.
	### if you only have one context you can just run `kubectl config view --flatten`
	### if you have more than one context use this script.
	###
	### **Requires jq: https://stedolan.github.io/jq/
	###

	context=${1:-"minikube"}

	apiVersion: extensions/v1beta1
	kind: Deployment
	metadata:
	creationTimestamp: null
	labels:
	run: server
	name: server
	spec:
	replicas: 1
	selector:

	docker rm -fv $(docker ps -qa)
	docker volume ls -q \| xargs docker volume rm
	rm -rf /etc/ceph \
	/etc/cni \
	/etc/kubernetes \
	/opt/cni \
	/opt/rke \
	/run/secrets/kubernetes.io \
	/run/calico \
	/run/flannel \