Applies to SUSE OpenStack Cloud 9

48 Testing PTFs (Program Temporary Fixes) on a Single Node #

If you want to test a PTF (Program Temporary Fix) before deploying it on all nodes to verify that it fixes a certain issue, you can manually install the PTF on a single node.

In the following procedure, a PTF named venv-openstack-nova-x86_64-ptf.rpm, containing a fix for nova, is installed on the Compute Node 01.

Procedure 48.1: Testing a Fix for nova #

Check the version number of the package(s) that will be upgraded with the PTF. Run the following command on the deployer node:
```
ardana > rpm -q venv-openstack-nova-x86_64
```
Install the PTF on the deployer node:
```
tux > sudo zypper up ./venv-openstack-nova-x86_64-ptf.rpm
```
This will install a new TAR archive in /opt/ardana_packager/ardana-8/sles_venv/x86_64/.
Register the TAR archive with the indexer:
```
tux > sudo  create_index --dir \
      /opt/ardana_packager/ardana-8/sles_venv/x86_64
```
This will update the indexer /opt/ardana_packager/ardana-8/sles_venv/x86_64/packages.

Deploy the fix on Compute Node 01:

Check whether the fix can be deployed on a single Compute Node without updating the Control Nodes:

ardana > cd ~/scratch/ansible/next/ardana/ansible
ardana > ansible-playbook -i hosts/verb_hosts nova-upgrade.yml \
--limit=inputmodel-ccp-compute0001-mgmt --list-hosts

If the previous test passes, install the fix:

ardana > ansible-playbook -i hosts/verb_hosts nova-upgrade.yml \
--limit=inputmodel-ccp-compute0001-mgmt

Validate the fix, for example by logging in to the Compute Node to check the log files:
```
ardana > ssh ardana@inputmodel-ccp-compute0001-mgmt
```
In case your tests are positive, install the PTF on all nodes as described in Chapter 47, Applying PTFs (Program Temporary Fixes) Provided by SUSE L3 Support .
In case the test are negative uninstall the fix and restore the previous state of the Compute Node by running the following commands on the deployer node;
```
tux > sudo zypper install --force venv-openstack-nova-x86_64-OLD-VERSION
ardana > cd ~/scratch/ansible/next/ardana/ansible
ardana > ansible-playbook -i hosts/verb_hosts nova-upgrade.yml \
--limit=inputmodel-ccp-compute0001-mgmt
```
Make sure to replace OLD-VERSION with the version number you checked in the first step.