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Chapter 3. Updating the undercloud
This process updates the undercloud and its overcloud images to the latest Red Hat OpenStack Platform 16.1 version.
3.1. Performing a minor update of a containerized undercloud Link kopierenLink in die Zwischenablage kopiert!
Director provides commands to update the main packages on the undercloud node. This allows you to perform a minor update within the current version of your OpenStack Platform environment.
Procedure
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Log in to the director as the
stackuser. Run
dnfto upgrade the director main packages:sudo dnf update -y python3-tripleoclient* tripleo-ansible ansible
$ sudo dnf update -y python3-tripleoclient* tripleo-ansible ansibleCopy to Clipboard Copied! Toggle word wrap Toggle overflow The director uses the
openstack undercloud upgradecommand to update the undercloud environment. Run the command:openstack undercloud upgrade
$ openstack undercloud upgradeCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Wait until the undercloud upgrade process completes.
Reboot the undercloud to update the operating system’s kernel and other system packages:
sudo reboot
$ sudo rebootCopy to Clipboard Copied! Toggle word wrap Toggle overflow - Wait until the node boots.
3.2. Updating the overcloud images Link kopierenLink in die Zwischenablage kopiert!
You need to replace your current overcloud images with new versions. The new images ensure the director can introspect and provision your nodes using the latest version of OpenStack Platform software.
Prerequisites
- You have updated the undercloud to the latest version.
Procedure
Source the
stackrcfile:source ~/stackrc
$ source ~/stackrcCopy to Clipboard Copied! Toggle word wrap Toggle overflow Remove any existing images from the
imagesdirectory on thestackuser’s home (/home/stack/images):rm -rf ~/images/*
$ rm -rf ~/images/*Copy to Clipboard Copied! Toggle word wrap Toggle overflow Extract the archives:
cd ~/images for i in /usr/share/rhosp-director-images/overcloud-full-latest-16.1.tar /usr/share/rhosp-director-images/ironic-python-agent-latest-16.1.tar; do tar -xvf $i; done cd ~
$ cd ~/images $ for i in /usr/share/rhosp-director-images/overcloud-full-latest-16.1.tar /usr/share/rhosp-director-images/ironic-python-agent-latest-16.1.tar; do tar -xvf $i; done $ cd ~Copy to Clipboard Copied! Toggle word wrap Toggle overflow Import the latest images into the director:
openstack overcloud image upload --update-existing --image-path /home/stack/images/
$ openstack overcloud image upload --update-existing --image-path /home/stack/images/Copy to Clipboard Copied! Toggle word wrap Toggle overflow Configure your nodes to use the new images:
openstack overcloud node configure $(openstack baremetal node list -c UUID -f value)
$ openstack overcloud node configure $(openstack baremetal node list -c UUID -f value)Copy to Clipboard Copied! Toggle word wrap Toggle overflow Verify the existence of the new images:
openstack image list ls -l /var/lib/ironic/httpboot
$ openstack image list $ ls -l /var/lib/ironic/httpbootCopy to Clipboard Copied! Toggle word wrap Toggle overflow
- When you deploy overcloud nodes, ensure that the overcloud image version corresponds to the respective heat template version. For example, use only the RHOSP 16.1 images with the RHOSP 16.1 heat templates.
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If you deployed a connected environment that uses the Red Hat Customer Portal or Red Hat Satellite Server, the overcloud image and package repository versions might be out of sync. To ensure that the overcloud image and package repository versions match, you can use the
virt-customizetool. For more information, see the Red Hat Knowledgebase solution Modifying the Red Hat Linux OpenStack Platform Overcloud Image with virt-customize. -
The new
overcloud-fullimage replaces the oldovercloud-fullimage. If you made changes to the old image, you must repeat the changes in the new image, especially if you want to deploy new nodes in the future.
3.3. Undercloud post-upgrade notes Link kopierenLink in die Zwischenablage kopiert!
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If you are using a local set of core templates in your
stackusers home directory, ensure that you update the templates by using the recommended workflow in Using customized core heat templates in the Advanced Overcloud Customization guide. You must update the local copy before upgrading the overcloud.