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kubernetes all in one

grab an atomic host

$ vagrant init fedora/25-atomic-host
$ vagrant up
$ vagrant ssh

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Step By Step Guide to Configure a CoreOS Cluster From Scratch

This guide describes how to bootstrap new Production Core OS Cluster as High Availability Service in a 15 minutes with using etcd2, Fleet, Flannel, Confd, Nginx Balancer and Docker.

Content

• Introduction
  • Tools Used
• Basic Configuration

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Vagrant with Ansible Provisioner on Windows

Long story short, ansible does not work on a Windows control machine, so you basically have to:

• either run ansible --connection=local ... in the target vm
• set up a separate control vm where ansible is installed via shell provisioner

Below are Vagrantfile examples for both approaches

Within the Target VM

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Vagrant + Librarian + Chef on Windows

Steps

1. http://www.vagrantup.com/downloads.html
2. Download and install vagrant_1.6.3.msi
3. Reboot
4. [run] vagrant box add opscode_ubuntu-12.04_chef-11.4.0 https://opscode-vm-bento.s3.amazonaws.com/vagrant/opscode_ubuntu-12.04_chef-11.4.0.box
5. http://gnuwin32.sourceforge.net/packages/gtar.htm

• Download and install http://gnuwin32.sourceforge.net/downlinks/tar-bin.php

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Weave Net and Docker Swarm

This example show how-to setup a very simple Swarm cluster enabled with Weave Net.

## Infratructure

There are two hosts that have a recent version of Docker Engine running.

These hosts are named host1 and host2, and might have the following in /etc/hosts or you just substitute IP addresses in the commands shown below.

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#!/bin/bash

# Author: Erik Kristensen
# Email: erik@erikkristensen.com
# License: MIT
# Nagios Usage: check_nrpe!check_docker_container!_container_id_
# Usage: ./check_docker_container.sh _container_id_
#
# The script checks if a container is running.
#   OK - running

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###Pre-Req's:

Installing Cloudera Repo on all nodes that you'll install hadoop daemons on:

sudo cat > /etc/yum.repos.d/cloudera.repo <<EOF
[cloudera-cdh5]
# Packages for Cloudera's Distribution for Hadoop, Version 5, on RedHat	or CentOS 6 x86_64
name=Cloudera's Distribution for Hadoop, Version 5
baseurl=http://archive.cloudera.com/cdh5/redhat/6/x86_64/cdh/5/

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- prepare work
a. make cm node can ssh to all nodes without password
   ssh-genkey, ssh-copy-id
b. hostname mapping
c. mysql server
d. postgresql
e. ntp
   systemctl disable chrony
   centos7 default enable chrony server, even enable ntpd, cuase chrony started, ntpd will not started
   this will cause CDH ntp error, so need to disable chrony.

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#!/bin/bash

# Installation:
#
# 1.   vim /etc/ssh/sshd_config 
#      PrintMotd no
#
# 2.   vim /etc/pam.d/login
#      # session optional pam_motd.so
#

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Font=Powerline Consolas
ForegroundColour=131,148,150
BackgroundColour=0,43,54
CursorColour=220,50,47
Black=7,54,66
BoldBlack=0,43,54
Red=220,50,47
BoldRed=203,75,22
Green=133,153,0
BoldGreen=88,110,117