Fixed Ansible lint errors ANSIBLE0012 and ANSIBLE0013
which address the usage of shell and command modules properly.
* When a shell/command task creates a file, it should explictly
specify it with a 'creates' argument.
* When shell is not required, use the command module.
* If a task is not changing anything (e.g. cat <file>)
it should be marked as "changed_when: false".
Also, fixed lines with 'ignore_error' to be 'ignore_errors'.
Change-Id: I1ef35242e2d1427d96320c47aff22e86bc035ada
This patch adds ansible playbooks and roles to carry out migration of
an existing ML2/OVS tripleo setup to ML2/OVN.
In this patch, all the migration tasks are carried out using ansible.
Below are the migration steps
1. Generates a hosts file with the ip addresses of the controllers
and computes.
2. Creates pre migration resources (including a VM) and validates them
3. Runs the overcloud deploy script with ovn-controller's configured to
use a temporary ovs bridge (OVNIntegrationBridge: "br-migration")
4. Carry out the migration tasks
- Generate the OVN north db by running ovn sync util
- Configure ovn-controllers to take over br-int
- Delete all the qrouter/q-dhcp namespaces
5. Validates the pre migration resources again to check if everything is fine
or not.
6. Deletes the pre migration resources and creates and validates post migration
resources.
7. Deletes the post migration resources
8. And finally runs the overcloud deploy script again by setting
"OVNIntegrationBridge: "br-int"
Co-authored-by: Miguel Angel Ajo <majopela@redhat.com>
Change-Id: I29f0d729f8e2ad644aa1eead7c0802995ee279a9
abregman