Possible to create Openstack images in qcow2 format with packer without specifying in the post-proc?

[Lorena Lobato]

Hello,

Is it possible to create an OS image already compressed? All the tests that I was doing is always in raw format. We are not interested in compress the image in the post-processor. And we need to compress somehow the image since it is too big (impossible to reduce it in our case)

Could I use "qemu" builder and "OS" builder in the same template to carry out this approach?

Thanks so much in advance
Regards
Lorena

[Lorena Lobato]

Hello,

Fixed by uploading packer to 0.10.1 version and using post-processor for OpenStack (which is valid with this version). In this post-processor I called to a script which was downloading the "snapshot", convert it to qcow2 (and compress it) and upload it again to glance.

For the record, only using OS builder.

Thanks
Lore

[Stacy Véronneau]

Hello Lorena,

Could you post your post-processor syntax and the script to download, convert, compress and upload in Glance?

Thank you!

/Stacy

[Lorena Lobato]

Hello Stacy,

Sure. 

   "post-processors": [

    {

    "type": "shell-local",

    "inline": [

      "/usr/bin/glance image-download  snapshotv2016 --file /tmp/tempImage.qcow2

      "/usr/bin/qemu-img convert -p -c -O qcow2  tempImage imagecompressed01.qcow2",

      "/usr/bin/glance image-create --name final_image --file imagecompressed01.qcow2 --disk-format qcow2 --container-format bare"

      ]

    }]

Hope it helps :-)

Cheers,

Lorena

[Lorena Lobato]

Sorry, have typed too fast :-)

 "post-processors": [

    {

    "type": "shell-local",

    "inline": [

      "/usr/bin/glance image-download  snapshotv2016 --file /tmp/tempImage.qcow2

      "/usr/bin/qemu-img convert -p -c -O qcow2  /tmp/tempImage.qcow2 imagecompressed01.qcow2",

      "/usr/bin/glance image-create --name final_image --file imagecompressed01.qcow2 --disk-format qcow2 --container-format bare"

      ]

    }]