Installing OpenStack on AWS

1. Prerequisites – Minimal requirements for hosting in AWS, but not limited to:

  • Ubuntu Server 14.04.3 LTS – 64bit
  • Minimum 2VCPU – Cores
  • Minimum 8 GB RAM for just OpenStack (m4.large), Minimum 16 GB RAM for Sahara and clustering (m4.xlarge)
  • Atleast 40 GB of diskspace

2. Install Ubuntu if you dont have one

3. Verify installed version using

lsb_release -d
free -m
df -h

4. Update to the latest binaries

sudo apt-get update

5. Create a SUDO user – alternatively you can use the /devstack/tools/create-stack-user.sh to create a user after step 8

sudo -i
adduser stack			
	Enter new UNIX password:
	Retype new UNIX password:
	passwd: password updated successfully
	Changing the user information for username
	Enter the new value, or press ENTER for the default
	Full Name []:stack
	Room Number []:
	Work Phone []:
	Home Phone []:
	Other []:
	Is the information correct? [Y/n] Y

6. Add user to SUDOERs group

usermod -aG sudo stack 
echo "stack ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

7. Switch to the new stack user

su - stack
check if the user can do sudo operations without password prompts
sudo ls -la /root

8. Switch to user home and install GIT and checkout devstack

cd ~
sudo apt-get install git
git clone https://github.com/openstack-dev/devstack

9. Configure devstack – update local.config and move to /devstack

cd /devstack
cp sample/local.conf .

* Update the passwords for the accounts

[email protected]
[email protected]
[email protected]
[email protected]

* If you are running on a physical machine with a static IP you can update the following property. On AWS its better to leave it commented as the local IP will be changed on each restart, unless the Elastic IP is assigned to the instance

HOST_IP=172.31.26.172

* And add the following line at the end of the file. These entries will add the Sahara plugin (Data Processing) in OpenStack UI

echo "enable_plugin sahara git://github.com/openstack/sahara" >> local.conf
echo "enable_plugin sahara-dashboard git://github.com/openstack/sahara-dashboard" >> local.conf
echo "enable_plugin ceilometer git://github.com/openstack/ceilometer" >> local.conf

10. Start the stack services

./stack.sh

* This takes up sometime and logs will be available at /opt/stack/logs. On successful completion you will find details something similar as below.

=========================
DevStack Component Timing
=========================
Total runtime         1169
run_process            57
test_with_retry         3
apt-get-update          3
pip_install           299
restart_apache_server  10
wait_for_service       11
git_timed             244
apt-get                69
=========================

This is your host IP address: 172.31.26.172
This is your host IPv6 address: ::1
Horizon is now available at http://172.31.26.172/dashboard
Keystone is serving at http://172.31.26.172/identity/
The default users are: admin and demo
The password: [email protected]
[email protected]:~/devstack$

11. To access the dashboard hit http://172.31.26.172/dashboard in browser (with the ip as displayed in the above step). If you are running in local PC you can directly access with the above url. But if you are running on AWS, this is the internal IP and will not be available to the outside world. In this case, allow HTTP access on 80 port for the outside world and access the service with the Public IP or DNS hostname allocated to your instance. This in my case http://54.23.123.43/dashboard.

Installing Oracle JDK in Amazon AWS EC2 Ubuntu

Lately I tried to install Oracle JDK in one of my Ubuntu servers on Amazon EC2 instance. Unfortunately the inbuilt installers support the installation of OpenJDK.

For some requirements, I was in need of installing a specific version of JDK and test my application, you could get the older version from Oracle Site. I used the following script from one of the blogs, hope it helps someone.

#!/usr/bin/env bash
wget -O 'jdk-7u80-linux-x64.tar.gz' --no-cookies --no-check-certificate --header 'Cookie:gpw_e24=http://www.oracle.com; oraclelicense=accept-securebackup-cookie' 'http://download.oracle.com/otn-pub/java/jdk/7u80-b15/jdk-7u80-linux-x64.tar.gz'
tar -xvf jdk-7u80-linux-x64.tar.gz
sudo mkdir /usr/lib/jvm
sudo mv ./jdk1.7* /usr/lib/jvm/jdk1.7.0
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.0/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.0/bin/javaws" 1
sudo chmod a+x /usr/bin/java
sudo chmod a+x /usr/bin/javac
sudo chmod a+x /usr/bin/javaws

The Key here is Oracle need you to accept the license terms before using the any version of Oracle JDK. You could do the same from the scripting by just adding --no-cookies --no-check-certificate --header 'Cookie:gpw_e24=http://www.oracle.com; oraclelicense=accept-securebackup-cookie' params to the WGET.

Alternative, you could download the installers/zip files from external CDNs, like REUCON, move it to EC2 instance through SFTP and install it.