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$ qemu-img convert -f qcow2 -O raw debian-8.2.0-openstack-amd64.qcow2 debian-8.2.0-openstack-amd64.raw

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upload upload

Uploading new images

To upload a new image to glance, the following command can be useful:

glanceopenstack image- create --name <image_name> --file <image_location> --disk-format raw --container-format bare [--public|--private] <image_name>
# There is-public True --progress  a bug where in some/most/many circumstances you will not be able to use --protected with the "image create" command. Workaround: Just set the protected flag after the image has been uploaded
openstack image set --protected <image_name>

For example, the following command would upload an ubuntu image:

glanceopenstack image-create --name "Ubuntu Server 16.04 (Xenial) amd64"  create --file xenial-server-cloudimg-amd64-disk1.img.raw --disk-format raw --container-format bare --is-public True --progress "Ubuntu Server 16.04 (Xenial) amd64"
openstack image set --protected "Ubuntu Server 16.04 (Xenial) amd64"

The "–publicThe "–is-public True" flag is used to indicate that all tenants projects should have access to this image, and the upload would then require admin credentials. In the case of an image upload which should only be accessible to the tenant project uploading it, that flag can be omitted.

Change existing images

Creating Windows Images

Cloudbase.it provides tools for creating OpenStack-ready cloud images. They've created a Windows Server 2012R2 images, which is ready for use (download and instructions here). This image is already imported into our environment.

If you need an another Windows Version, you must build the image yourself, with good help from the automated cloudbase-scripts. It is recommended to create the image on a Windwos 10 host or VM. The following examples is a list of what we did to create a cloud ready Windows 10 image.

1. Install the Windows 10 ADK (download) and choose only Deployment Tools 
2. Download the Windows 10 Enterprise Evaluation ISO, and mount it in your host/VM (you need to login with your Microsoft account to download ISOs)
3. Download the stable amd64 virto-win iso, following this link
4. Download the Windows OpenStack Imaging Tools
5. Change the following:

   1. UnattendTemplate.xml: Change InputLocale and UserLocale from en-US to nb-NO

   2. Added ntnu_wallpaper.png to the UnattendResources-folder
   3. UnattendResources\Specialize.ps1:
      1. Change the line with Wallpaper.png to ntnu_wallpaper.png (do not change the destination filename in the copy-command, as the wallpaper is set through an imported local GPO)
      2. Replace the ICMP-firewall-command with the following to commands: netsh advfirewall firewall add rule name="All ICMP V4" protocol=icmpv4:any,any dir=in action=allow and netsh advfirewall firewall add rule name="All ICMP V6" protocol=icmpv6:any,any dir=in action=allow
6. Create the following powershell-script, modify the three path-variables, and run it:

7. Code Block
   language powershell title CreateOpenStackImage.ps1 linenumbers true
   Import-Module .\windows-openstack-imaging-tools-master\WinImageBuilder.psm1 $virtualDiskPath = "<C:\path\to\diskfile.raw>" $wimFilePath = "<windowsiso-mountpoint>\sources\install.wim>" $virtIOISOPath = "<C:\path\to\virtio-win-x.x.xxx.iso>" $images = Get-WimFileImagesInfo -WimFilePath $wimFilePath $image = $images[0] New-WindowsCloudImage -WimFilePath $wimFilePath -ImageName $image.ImageName -VirtualDiskFormat RAW -VirtualDiskPath $virtualDiskPath -SizeBytes 18GB -VirtIOISOPath $virtIOISOPath -InstallUpdates

8. You now have a .raw diskfile, which contains a Windows 10-installation that will automatically run sysprep once booted. Now you have to choices:

   1. Import the .raw file to glance (see Upload new images), and spawn an instance from the new image
   2. Create a new local KVM-vm (on a Linux host), be sure to choose a virtio NIC, attach the .raw-file, boot the VM
9. Wait for the instance to shutdown (it will install updates, run the powershellscripts Logon.ps1, FirstLogon.ps1 and Specialize.ps1 and finally run sysprep
10. If you chose 8a, create a public snapshot of the instance. This snapshot is your new cloud ready Windows 10 image.
11. If you chose 8b, upload the .raw-file to glance (Upload new images)

Manipulate image-init images

Required packages for ubuntu, other OS might have different names. The procedure is tested with raw and qcow2 images.

• qemu-utils
• guestfish
• libguestfs-tools
• working sudo for your user

Verify that the cloud-init image is ok.

:~$  qemu-img check <image name>
No errors were found on the image.
14510/36032 = 40.27% allocated, 98.23% fragmented, 98.04% compressed clusters
Image end offset: 289210368

Manipulate the image with guestfish

# Mounting the filesystem
:~$ sudo guestfish

Welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.

Type: 'help' for help on commands
      'man' to read the manual
      'quit' to quit the shell

><fs> add <path to image>
><fs> run
><fs> list-filesystems 
/dev/sda1: ext4
><fs> mount /dev/sda1 /

# Editing a file
><fs> vi /etc/fstab

#Copying in a file from outside the image
><fs> copy-in <file outside the image> <pat to where to put it inside image>

# Commiting and exiting guestfish. Exit does both
><fs> exit

Change existing images

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