Jointly exploit EGI and EUDAT services

Overview

For users

For resource providers

Infrastructure status

Site-specific configuration

Architecture

EGI and EUDAT interoperability

Interconnect EGI Federated Cloud VMs with EUDAT B2STAGE and B2SAFE services

Prerequisites

• You need to have granted access to the EGI Federated Cloud resources. See how to get access.
• You need to have granted access to a B2STAGE and B2SAFE instances with the same credential used to access the EGI Federated Cloud. Directly contact the EUDAT contact person at the computing centre offering B2STAGE/B2SAFE services. They will need the Distinguished Name (DN) of your personal certificate, e.g.

  /DC=org/DC=terena/DC=tcs/C=SE/O=<your organization>/CN=<your name>

• Setup the OCCI client as described in HOWTO11 or request access to AppDB VMOps Dashboard (currently in Alpha)

Create a VM in the EGI Federated Cloud

This section describes how to create a VM in the EGI Federated Cloud with pre-configured on board all the software needed to interact with B2STAGE and B2SAFE services.

• Select a VM image in the AppDB or upload a new one.
• Download the contextualisation script from the EGI-EUDAT integration pilot software appliance. The script was tested on an Ubuntu 14 machine, small changes could be needed if applied to other distributions.
  • Click on the Software Appliance Version tab and download the EGI-EUDAT-Integration.yml script available under the Contextualisation Script section.
• Open the EGI-EUDAT-Integration.yml contextualization script and copy your SSH public key where indicated.
• Create a VM from the chosen image applying the downloaded contextualisation script. You can follow the instructions available here.
• The GridFTP client globus-url-copy (needed to access EUDAT B2SAFE services) is installed in the just started VM and username/password are set to egieudat/egieudat (do not forget to change the password!).
• Get the IP of the machine using the OCCI describe command and access it through SSH. More information on managing VMs is found at Managing_VMs.

Add block storage to the VM

• Create a block storage, at the same resource provider that is hosting the VM and attach it to the VM following this instructions.
• Block Storage will appear as block devices into your VM. Usually these devices are empty upon creation. The device will be initially empty, so you will need to format it and mount it. This will remove all data stored on the device, then execute the following steps only the first time the device is used.
  • Log in in the machine through SSH
  • Find the disk via the command fdisk. This returns a list of devices, select the one which has the corresponding size:

    fdisk -l

  • Follow this instructions to format and mount the device.