Yet Another AWS Compatibility Example Using Vagrant-AWS Plugin and Eucalyptus 3.4 to Deploy Docker

Something that Eucalyptus has been constant about from the beginning is its stance on being the best open source, on-premise AWS-compatible cloud on the market.   This blog entry is just another example of demonstrating this compatibility.

My most recent blog entries have been centered around Docker and how to deploy it on Eucalyptus.  This entry will show how a user can take Docker’s own documentation on deploying Docker using Vagrant with AWS – but with Eucalyptus.   Before getting started, there are some prerequisites that need to be in place.

Prerequisites for Eucalyptus Cloud

In order to get started, the Eucalyptus cloud needs to have an Ubuntu Raring Cloud Image bundled, uploaded and registered before the steps below can be followed.  The previous blog entries below will help here:

In addition to the Ubuntu Raring Cloud EMI being available, the user also needs to have the following:

After these prerequisites have been met, the user is ready to set up Vagrant to interact with Eucalyptus.

Setting up Vagrant Environment

To start out, we need to set up the Vagrant environment.  The steps below will get you going:

  1. Install Vagrant from http://www.vagrantup.com/. (optional – package manager can be used here instead)
  2. Install the vagrant aws plugin:  

    vagrant plugin install vagrant-aws

After Vagrant and the vagrant aws plugin have been successfully installed, all that is left is to create a Vagrantfile to provide information to Vagrant as to how to interact with Eucalyptus.  Since the vagrant aws plugin is being used, and Eucalyptus is compatible with AWS, the configuration will be very similar to AWS.

I provided a Vagrantfile on Github to help get users up to speed quicker.  To check out the Vagrantfile, just clone the repository from Github:

$ git clone https://github.com/hspencer77/eucalyptus-docker-raring.git

After checking out the file, change directory to eucalyptus-docker-raring, and edit the following variables to match your user information for the Eucalyptus cloud that will run the Docker instance:

AWS_ENDPOINT = "<EC2_URL for Eucalyptus Cloud>"
AWS_AMI = "<ID for Ubuntu Raring EMI>"
AWS_ACCESS_KEY = "<Access Key ID>"
AWS_SECRET_KEY = "<Secret Key>"
AWS_KEYPAIR_NAME = "<Key Pair name>"
AWS_INSTANCE_TYPE = '<VM type>'
SSH_PRIVKEY_PATH = "<The path to the private key for the named keypair, for example ~/.ssh/docker.pem>"

Once the Vagrantfile is populated with the correct information, we are now ready to launch the Docker instance.

Launch the Docker Instance Using Vagrant

From here, Vagrant makes this very straight-forward.  There are only two steps to launch the Docker instance.

  1. Run the following command to launch the instance:

     vagrant up --provider=aws
  2. After Vagrant finishes deploying the instance, SSH into the instance:

    vagrant ssh

Thats it!  Once you are SSHed into the instance, to run Docker, execute the following command:

ubuntu@euca-172-17-120-212:~$ sudo docker

You have successfully launched a Docker instance on Eucalyptus using Vagrant.  Since Eucalyptus works with the vagrant aws plugin, the same Vagrantfile can be used against AWS (of course, the values for the variables above will change).  This is a perfect dev/test to production setup whether Eucalyptus is being used for dev/test and AWS being used for production (and vise versa).

Yet Another AWS Compatibility Example Using Vagrant-AWS Plugin and Eucalyptus 3.4 to Deploy Docker

Step-by-Step Deployment of Docker on Eucalyptus 3.4 for the Cloud Administrator

Docker

Eucalyptus Systems, Inc.

Docker has been in the news lately as one of the hot open-source project promoting linux containers. Some use cases for Docker include the following:

  • Automation of packaging and application deployment
  • Lightweight PaaS environments
  • Automated testing and continuous integration/deployment
  • Deploying and scaling web applications, databases and backend services

The focus of this blog entry is to show how to deploy Docker on Eucalyptus from a cloud administrator’s point-of-view – all in the cloud.  This is a step-by-step guide to create an Docker EMI from an existing Ubuntu Cloud Raring EMI using AWS’s documentation.  This entry will also show how to build euca2ools from source in the Ubuntu Cloud image.

Prerequisites

This entry assumes the following:

After confirming that the prerequisites are met, let’s get started.

Creating an EMI From an Existing EMI

As mentioned earlier, these steps will be based off of  AWS’s documentation on creating an instance store-backed AMI from an existing AMI.  In this example, here is an existing Ubuntu Raring instance thats running on Eucalyptus:

$ euca-describe-instances --region eucalyptus-admin@
RESERVATION r-3E423E33 961915002812 default
INSTANCE i-827E3E88 emi-06663A57 euca-10-104-7-12.eucalyptus.euca-hasp.eucalyptus-systems.com
euca-172-17-118-27.eucalyptus.internal running euca-admin 0 m1.medium 
2013-11-18T22:41:35.694Z LayinDaSmackDown eki-28F338EB eri-51253C0A 
monitoring-disabled 10.104.7.12 172.17.118.27 instance-store

This instance is using the following EMI, EKI and ERI:

$ euca-describe-images emi-06663A57 eki-28F338EB eri-51253C0A --region eucalyptus-admin@
IMAGE eki-28F338EB latest-raring-kernel/raring-server-cloudimg-amd64-vmlinuz-generic.manifest.xml 
441445882805 available public x86_64 kernel instance-store
IMAGE emi-06663A57 latest-raring/raring-server-cloudimg-amd64.img.manifest.xml 441445882805 
available public x86_64 machine eki-28F338EB eri-51253C0A instance-store paravirtualized
IMAGE eri-51253C0A latest-raring-kernel/raring-server-cloudimg-amd64-loader.manifest.xml 441445882805 
available public x86_64 ramdisk instance-store

To start, copy the zip file cloud administrator credentials obtained by the euca_conf command mentioned in the Eucalyptus 3.4 documentation to the running instance:

# scp -i euca-admin.priv admin.zip 
ubuntu@euca-10-104-7-12.eucalyptus.euca-hasp.eucalyptus-systems.com:/tmp/.

Next, install the following packages for the 3.8.0-33 kernel, and packages needed to build euca2ools:

ubuntu@euca-172-17-118-27:~$ sudo apt-get install python-setuptools git python-lxml unzip linux-headers-3.8.0-33-generic linux-image-extra-3.8.0-33-generic

Find the ephemeral storage using the instance metadata service, format, and mount the ephemeral to /mnt/image:

ubuntu@euca-172-17-118-27:~$ curl http://169.254.169.254/latest/meta-data/block-device-mapping/ephemeral
sda2
ubuntu@euca-172-17-118-27:~$ sudo mkdir /mnt/image
ubuntu@euca-172-17-118-27:~$ sudo mkfs.ext4 /dev/vda2
ubuntu@euca-172-17-118-27:~$ sudo mount /dev/vda2 /mnt/image

Download euca2ools from Github:

ubuntu@euca-172-17-118-27:~$ git clone https://github.com/eucalyptus/euca2ools.git

Install euca2ools:

ubuntu@euca-172-17-118-27:~$ cd euca2ools; sudo python setup.py install

Unzip the cloud administrator credentials in /tmp:

ubuntu@euca-172-17-118-27:~$ cd /tmp; unzip admin.zip

Change to the root user, and source the cloud administrator credentials:

ubuntu@euca-172-17-118-27:~$ sudo -s; source /tmp/eucarc

Bundle, upload and register the ramdisk and kernel under /boot:

root@euca-172-17-118-27:~# euca-bundle-image -i /boot/initrd.img-3.8.0-33-generic 
--ramdisk true -r x86_64
root@euca-172-17-118-27:~# euca-upload-bundle -b ubuntu-raring-docker-ramdisk 
-m /var/tmp/bundle-SQrAuT/initrd.img-3.8.0-33-generic.manifest.xml
root@euca-172-17-118-27:~# euca-register -n ubuntu-raring-docker-ramdisk 
ubuntu-raring-docker-ramdisk/initrd.img-3.8.0-33-generic.manifest.xml 
IMAGE eri-6BF033EE
root@euca-172-17-118-27:~# euca-bundle-image -i /boot/vmlinuz-3.8.0-33-generic 
--kernel true -r x86_64
root@euca-172-17-118-27:~# euca-upload-bundle -b ubuntu-raring-docker-kernel 
-m /var/tmp/bundle-31Lnxy/vmlinuz-3.8.0-33-generic.manifest.xml
root@euca-172-17-118-27:~# euca-register -n ubuntu-raring-docker-kernel 
ubuntu-raring-docker-kernel/vmlinuz-3.8.0-33-generic.manifest.xml
IMAGE eki-17093995

Use euca-bundle-vol to bundle the root filesystem. Make sure to exclude /tmp, /mnt/image, and /home/ubuntu. Additionally, make sure and set the size of the image to be 5 GB:

root@euca-172-17-118-27:~# euca-bundle-vol -p ubuntu-raring-docker 
-s 5120 -e /tmp,/root,/mnt/image,/home/ubuntu -d /mnt/image 
--kernel eki-17093995 --ramdisk eri-6BF033EE -r x86_64

Next, upload and register the root filesystem:

root@euca-172-17-118-27:~# euca-upload-bundle -b ubuntu-raring-docker-rootfs 
-m /mnt/image/ubuntu-raring-docker.manifest.xml
root@euca-172-17-118-27:~# euca-register -n ubuntu-raring-docker-rootfs 
ubuntu-raring-docker-rootfs/ubuntu-raring-docker.manifest.xml
IMAGE emi-26403979

We have the new EMI, EKI and ERI for the Docker instance.  Lastly, set the image permissions so that all users on the cloud can use the EMI, EKI and ERI:

root@euca-172-17-118-27:~# euca-modify-image-attribute -l -a all emi-26403979
root@euca-172-17-118-27:~# euca-modify-image-attribute -l -a all eki-17093995
root@euca-172-17-118-27:~# euca-modify-image-attribute -l -a all eri-6BF033EE

Now its time to launch the Docker EMI.

Running the Docker Instance with Cloud-Init

Before launching the EMI, the cloud-init configuration file needs to be created.  This file will be responsible for configuring the instance repositories, downloading and installing Docker.  With your favorite command-line editor, create a file called cloud-init-docker.config, with the following content:

#cloud-config
apt_update: true
apt_upgrade: true
disable_root: true
packages:
 - less
cloud_config_modules:
 - ssh
 - [ apt-update-upgrade, always ]
 - updates-check
 - runcmd
runcmd:
 - [ sh, -xc, "INST_HOSTNAME=`/bin/hostname`; META_IP=`curl -s http://169.254.169.254/latest/meta-data/local-ipv4`; echo ${META_IP} ${INST_HOSTNAME} >> /etc/hosts" ]
 - [ locale-gen, en_US.UTF-8 ]
 - [ sh, -xc, "wget -qO docker-io.gpg https://get.docker.io/gpg" ]
 - [ apt-key, add, docker-io.gpg ]
 - [ sh, -xc, "echo 'deb http://get.docker.io/ubuntu docker main' > /etc/apt/sources.list.d/docker.list" ]
 - [ apt-get, update ]
 - [ apt-get, install, -y, --force-yes, lxc-docker ]
 - [ modprobe, -q, aufs ]

Now, use euca-run-instances to launch the instance:

root@euca-172-17-118-27:~# euca-run-instances -k euca-admin emi-351237D1 
-t m1.medium --user-data-file cloud-init-docker.config

After launching the instance, leave the current instance to get back to end client.

root@euca-172-17-118-27:~# exit
exit
ubuntu@euca-172-17-118-27:~$ exit
logout
Connection to 10.104.7.12 closed.

Once the instance reaches running state, ssh into the instance using the keypair specified (which in this case will be euca-admin.priv), and execute the following Docker command to run an interactive shell session inside a minimal Ubuntu container:

$ euca-describe-instances --region eucalyptus-admin@
RESERVATION r-A1613D7F 961915002812 default
INSTANCE i-AFDB3D4C emi-26403979 euca-10-104-7-13.eucalyptus.euca-hasp.eucalyptus-systems.com 
euca-172-17-118-16.eucalyptus.internal running euca-admin 0 m1.medium 
2013-11-19T01:21:10.880Z LayinDaSmackDown eki-17093995 eri-6BF033EE monitoring-disabled 
10.104.7.13 172.17.118.16 instance-store
# ssh -i euca-admin.priv ubuntu@euca-10-104-7-13.eucalyptus.euca-hasp.eucalyptus-systems.com
Welcome to Ubuntu 13.04 (GNU/Linux 3.8.0-33-generic x86_64)
* Documentation: https://help.ubuntu.com/
System information as of Thu Nov 14 23:18:38 UTC 2013
System load: 0.0 Users logged in: 0
 Usage of /: 21.6% of 4.89GB IP address for eth0: 172.17.184.76
 Memory usage: 4% IP address for lxcbr0: 10.0.3.1
 Swap usage: 0% IP address for docker0: 10.1.42.1
 Processes: 83
Graph this data and manage this system at https://landscape.canonical.com/
Get cloud support with Ubuntu Advantage Cloud Guest:

http://www.ubuntu.com/business/services/cloud

Use Juju to deploy your cloud instances and workloads:

https://juju.ubuntu.com/#cloud-raring

New release '13.10' available.
Run 'do-release-upgrade' to upgrade to it.
Last login: Thu Nov 14 23:08:09 2013 from 10.104.10.6
ubuntu@euca-172-17-184-76:~$ sudo docker run -i -t ubuntu /bin/bash
Unable to find image 'ubuntu' (tag: latest) locally
Pulling repository ubuntu
8dbd9e392a96: Download complete
b750fe79269d: Download complete
27cf78414709: Download complete
root@041d5ddcd6b9:/# (Ctrl-p Ctrl-q to exit out of shell)
ubuntu@euca-172-17-184-76:~$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
041d5ddcd6b9 ubuntu:12.04 /bin/bash 27 seconds ago Up 26 seconds pink_frog

Thats it!  For more information regarding Docker, please refer to the latest Docker documentation.

Enjoy!

Step-by-Step Deployment of Docker on Eucalyptus 3.4 for the Cloud Administrator

Another Great Example of AWS Fidelity – Neo4j, Cloud-Init and Eucalyptus

I recently ran across a blog entry entitled Neo4j 1.9.M01 – Self-managed HA.  I found the concept of graph databases storing data really interesting and reached out to the guys at Neo4j to get some insight on how to deploy their HA solution on Eucalyptus.   Amongst the resources that they provided,  they shared this little gem – how to deploy Neo4j on EC2.  In order to run first, you need to know how to walk – so before going down the path of standing up HA Neo4j, I decided to be influenced by the DIY on EC2 article provided by Neo4j and deploy Neo4j on Eucalyptus  – with a little help from Cloud-Init.  The follow-up blog will show how to use the same setup, and deploy an HA Neo4j environment.

The Setup

Eucalyptus

The Eucalyptus cloud I used is configured using Eucalyptus High-Availability.  Its running on CentOS 6.3, running KVM.  Its also running in Managed networking mode, so that we can take advantage of network isolation of the VMs, and the use of security groups  – interacting very much in the same way as its done in the security groups provided in AWS EC2.

Ubuntu Cloud Image – 12.04 LTS Precise Pangolin

The image that we will use is the Ubuntu 12.04 LTS Cloud image.  The reasons for using this image is as follows:

  • Ubuntu cloud images come pre-packaged with cloud-init, which helps with bootstrapping the instance.
  • I wanted to have the solution work on AWS EC2 and Eucalyptus; since Ubuntu cloud images work on both, its a great choice.

Registering the Ubuntu Cloud Image with Eucalyptus

In order for us to get started, we need to get the Ubuntu Cloud image into Eucalyptus so that we can use it for our instance.  To upload, bundle and register the Ubuntu Cloud image, ramdisk and kernel, do the following:

  1. Download current version of  Ubuntu Precise Server AMD64 from the Ubuntu Cloud Image – Precise page, then unpack (ungzip, unarchive) the tar-gzipped file.  
    $ tar -zxvf precise-server-cloudimg-amd64.tar.gz
    x precise-server-cloudimg-amd64.img
    x precise-server-cloudimg-amd64-vmlinuz-virtual
    x precise-server-cloudimg-amd64-loader
    x precise-server-cloudimg-amd64-floppy
    x README.files

  2. Make sure to download and source your Eucalyptus credentials.
  3. We need to bundle, upload, and register precise-server-cloudimg-amd64-loader (ERI), precise-server-cloudimg-amd64-vmlinuz-virtual (EKI), and precise-server-cloudimg-amd64.img (EMI).  For more information regarding this, please refer to the “Image Overview” section of the Eucalyptus 3.1 User Guide.  
    $ euca-bundle-image -i precise-server-cloudimg-amd64-loader --ramdisk true
    $ euca-upload-bundle -b latest-ubuntu-precise -m /tmp/precise-server-cloudimg-amd64-loader.manifest.xml
    $ euca-register -a x86_64 latest-ubuntu-precise/precise-server-cloudimg-amd64-loader.manifest.xml
    $ euca-bundle-image -i precise-server-cloudimg-amd64-vmlinuz-virtual --kernel true
    $ euca-upload-bundle -b latest-ubuntu-precise -m /tmp/precise-server-cloudimg-amd64-vmlinuz-virtual.manifest.xml
    $ euca-register -a x86_64 latest-ubuntu-precise/precise-server-cloudimg-amd64-vmlinuz-virtual.manifest.xml
    $ euca-bundle-image -i precise-server-cloudimg-amd64.img
    $ euca-upload-bundle -b latest-ubuntu-precise -m /tmp/precise-server-cloudimg-amd64.img.manifest.xml
    $ euca-register -a x86_64 latest-ubuntu-precise/precise-server-cloudimg-amd64.img.manifest.xml

After bundling, uploading and registering the ramdisk, kernel and image, the latest-ubuntu-precise bucket in Walrus should have the following images:

$ euca-describe-images | grep latest-ubuntu-precise
IMAGE eki-0F3937E9 latest-ubuntu-precise/precise-server-cloudimg-amd64-vmlinuz-virtual.manifest.xml 345590850920 available public x86_64 kernel instance-store

IMAGE emi-C1613E67 latest-ubuntu-precise/precise-server-cloudimg-amd64.img.manifest.xml 345590850920 available public x86_64 machine instance-store

IMAGE eri-0BE53BFD latest-ubuntu-precise/precise-server-cloudimg-amd64-loader.manifest.xml 345590850920 available public x86_64 ramdisk instance-store

Cloud-init Config File

Now that we have the image ready to go, we need to create a cloud-init config file to pass in using the –user-data-file option that is part of euca-run-instances.  For more examples of different cloud-init files, please refer to the cloud-init-dev/cloud-init repository on bazaar.launchpad.net.  Below is the cloud-init.config file I created for bootstrapping the instance with an install of Neo4j, using ephemeral disk for the application storage, and installing some other packages (i.e. latest euca2ools, mlocate, less, etc.). The script can be also accessed from github as well – under the eucalptus/recipes repo.

#cloud-config
apt_update: true
apt_upgrade: true
disable_root: true
package_reboot_if_required: true
packages:
 - less
 - bind9utils
 - dnsutils
 - mlocate
cloud_config_modules:
 - ssh
 - [ apt-update-upgrade, always ]
 - updates-check
 - runcmd
runcmd:
 - [ sh, -xc, "if [ -b /dev/sda2 ]; then tune2fs -L ephemeral0 /dev/sda2;elif [ -b /dev/vda2 ]; then tune2fs -L ephemeral0 /dev/vda2;elif [ -b /dev/xvda2 ]; then tune2fs -L ephemeral0 /dev/xvda2;fi" ]
 - [ sh, -xc, "mkdir -p /var/lib/neo4j" ]
 - [ sh, -xc, "mount LABEL=ephemeral0 /var/lib/neo4j" ]
 - [ sh, -xc, "if [ -z `ls /var/lib/neo4j/*` ]; then sed --in-place '$ iMETA_HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/local-hostname`\\nMETA_IP=`curl -s http://169.254.169.254/latest/meta-data/local-ipv4`\\necho ${META_IP}   ${META_HOSTNAME} >> /etc/hosts; hostname ${META_HOSTNAME}; sysctl -w kernel.hostname=${META_HOSTNAME}\\nif [ -d /var/lib/neo4j/ ]; then mount LABEL=ephemeral0 /var/lib/neo4j; service neo4j-service restart; fi' /etc/rc.local; fi" ] 
 - [ sh, -xc, "META_HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/local-hostname`; META_IP=`curl -s http://169.254.169.254/latest/meta-data/local-ipv4`; echo ${META_IP}   ${META_HOSTNAME} >> /etc/hosts" ]
 - [ sh, -xc, "META_HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/local-hostname`; hostname ${META_HOSTNAME}; sysctl -w kernel.hostname=${META_HOSTNAME}" ]
 - [ sh, -xc, "wget -O c1240596-eucalyptus-release-key.pub http://www.eucalyptus.com/sites/all/files/c1240596-eucalyptus-release-key.pub" ]
 - [ apt-key, add, c1240596-eucalyptus-release-key.pub ]
 - [ sh, -xc, "echo 'deb http://downloads.eucalyptus.com/software/euca2ools/2.1/ubuntu precise main' > /etc/apt/sources.list.d/euca2ools.list" ]
 - [ sh, -xc, "echo 'deb http://debian.neo4j.org/repo stable/' > /etc/apt/sources.list.d/neo4j.list" ]
 - [ apt-get, update ]
 - [ apt-get, install, -y, --force-yes, euca2ools ]
 - [ apt-get, install, -y, --force-yes, neo4j ]
 - [ sh, -xc, "sed --in-place 's/#org.neo4j.server.webserver.address=0.0.0.0/org.neo4j.server.webserver.address=0.0.0.0/' /etc/neo4j/neo4j-server.properties" ]
 - [ sh, -xc, "service neo4j-service restart" ]
 - [ sh, -xc, "export LANGUAGE=en_US.UTF-8" ]
 - [ sh, -xc, "export LANG=en_US.UTF-8" ]
 - [ sh, -xc, "export LC_ALL=en_US.UTF-8" ]
 - [ locale-gen, en_US.UTF-8 ]
 - [ dpkg-reconfigure, locales ]
 - [ updatedb ]
mounts:
 - [ ephemeral0, /var/lib/neo4j, auto, "defaults,noexec" ]

Now, we are ready to launch the instance.

Putting It All Together

Before launching the instance, we need to set up our keypair and security group that we will use with the instance.

  1. To create a keypair, run euca-create-keypair.  *NOTE* Make sure you change the permissions of the keypair to 0600 after its been created.
    euca-create-keypair  neo4j-user > neo4j-user.priv; chmod 0600 neo4j-user.priv

  2. Next, we need to create a security group for our instance.  To create a security group, use euca-create-group.  To open any ports you  need for the application, use euca-authorize.  The ports we will open up for the Neo4j application are SSH (22), ICMP, HTTP( 7474), and HTTPS (7473).
    • Create security group:
      # euca-create-group neo4j-test -d "Security for Neo4j Instances"

    • Authorize SSH:
      # euca-authorize -P tcp -p 22 -s 0.0.0.0/0 neo4j-test

    • Authorize HTTP:
      # euca-authorize -P tcp -p 7474 -s 0.0.0.0/0 neo4j-test

    • Authorize HTTPS:
      # euca-authorize -P tcp -p 7473 -s 0.0.0.0/0 neo4j-test

    • Authorize ICMP:
      # euca-authorize -P icmp -t -1:-1 -s 0.0.0.0/0 neo4j-test

  3. Finally, we use euca-run-instances to launch the Ubuntu Precise image, and use cloud-init to install Neo4j:
    # euca-run-instances -k neo4j-user --user-data-file cloud-init-neo4j.config emi-C1613E67 --kernel eki-0F3937E9 --ramdisk eri-0BE53BFD --group neo4j-test

To check the status of the instance, use euca-describe-instances.

# euca-describe-instances i-A9EF448C
RESERVATION r-ED8E4699 345590850920 neo4j-test
INSTANCE i-A9EF448C emi-C1613E67 euca-192-168-55-104.wu-tang.euca-hasp.eucalyptus-systems.com 
euca-10-106-69-154.wu-tang.internal running admin 0 m1.small 2012-12-04T03:13:13.869Z 
enter-the-wu eki-0F3937E9 eri-0BE53BFD monitoring-disable 
euca-192-168-55-104.wu-tang.euca-hasp.eucalyptus-systems.com euca-10-106-69-154.wu-tang.internal instance-store

Because I added in the cloud-init config file to do an “apt-get upgrade”, it takes about 5 to 7 minutes until the instance is fully configured and Neo4j is running.  Once you have it running, go to https://<ip-address of instance>:7473.  It will direct you to the web administration page for monitoring and management of the Neo4j instance.  In this example, the URL will be https://euca-192-168-55-104.wu-tang.euca-hasp.eucalyptus-systems.com:7473

Neo4j Monitoring and Management Tool
Neo4j Monitoring and Management Tool

Thats it!  The cool thing about this too, is that you can find an Ubuntu Precise AMI on AWS EC2, use the same cloud-init script, use euca2ools, and follow these instructions to get the same deployment on AWS EC2.

As mentioned before, the follow-up blog will be how to deploy the HA solution of Neo4j on Eucalyptus. Enjoy!

Another Great Example of AWS Fidelity – Neo4j, Cloud-Init and Eucalyptus