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3.7. Obtaining Images for Overcloud Nodes
The director requires several disk images for provisioning Overcloud nodes. This includes:
- A discovery kernel and ramdisk - Used for bare metal system discovery over PXE boot.
- A deployment kernel and ramdisk - Used for system provisioning and deployment.
- An Overcloud kernel, ramdisk, and full image - A base Overcloud system that is written to the node's hard disk.
Obtain these images from the Red Hat Enterprise Linux OpenStack Platform downloads page on the Red Hat Customer Portal at https://access.redhat.com/downloads/content/191/ver=7/rhel---7/7/x86_64/product-downloads. This location on the Customer Portal contains the images in TAR archives.
Download these image archives to the
images directory on the stack user's home on the directory host (/home/stack/images/) and extract the images from the archives:
cd ~/images for tarfile in *.tar; do tar -xf $tarfile; done
$ cd ~/images
$ for tarfile in *.tar; do tar -xf $tarfile; done
Run the following command to import these images into the director:
openstack overcloud image upload --image-path /home/stack/images/
$ openstack overcloud image upload --image-path /home/stack/images/
This uploads the following images into the director:
bm-deploy-kernel, bm-deploy-ramdisk, overcloud-full, overcloud-full-initrd, overcloud-full-vmlinuz. These are the images for deployment and the Overcloud. The script also installs the discovery images on the director's PXE server.
View a list of the images in the CLI using the following command:
This list will not show the discovery PXE images (
discovery-ramdisk.*). The director copies these files to /httpboot.
Note
Ironic manages the
boot.ipxe file and the pxelinux.cfg directory in /httpboot during introspection and provisioning. These files might not appear when you view this directory.
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