Use zuul checkout for stackhpc-libvirt roles

This allows us to use the Depends-On: syntax in future commits.

Depends-On: https://review.opendev.org/#/c/618511/
Depends-On: stackhpc/ansible-role-libvirt-vm#29
Change-Id: I4007edf0939d21115b0e2699857a4593cae30b74

playbooks/tenks-deploy-teardown/pre.yml

@@ -24,6 +24,11 @@
         requirements: "{{ tenks_src_dir }}/requirements.txt"
         virtualenv: "{{ tenks_venv }}"
 
+    - name: Template requirements overrides
+      template:
+        src: requirements-overrides.yml.j2
+        dest: "{{ tenks_requirements_overrides_path }}"
+
     - name: Install Ansible Galaxy dependencies
       vars:
         ansible_galaxy_bin: "{{ tenks_venv }}/bin/ansible-galaxy"
@@ -33,6 +38,17 @@
           -p {{ tenks_src_dir }}/ansible/roles
         chdir: "{{ tenks_src_dir }}"
 
+    - name: Override Galaxy dependencies with equivalent modules from the zuul checkout
+      # We override so that as we add more dependenices we won't have to keep two files in
+      # sync
+      vars:
+        ansible_galaxy_bin: "{{ tenks_venv }}/bin/ansible-galaxy"
+      command:
+        cmd: >-
+          {{ ansible_galaxy_bin }} install -f -r "{{ tenks_requirements_overrides_path }}"
+          -p {{ tenks_src_dir }}/ansible/roles
+        chdir: "{{ tenks_src_dir }}"
+
     - name: Ensure network bridge for physnet1 exists
       command: "{{ item }}"
       become: true

playbooks/tenks-deploy-teardown/templates/requirements-overrides.yml.j2

@@ -0,0 +1,10 @@
+---
+
+# Override these ansible roles to point to the zuul source checkout
+# so that we can rely on Depends-On: syntax
+
+- src: git+{{ stackhpc_libvirt_host_src_dir }}/.git
+  name: stackhpc.libvirt-host
+
+- src: git+{{ stackhpc_libvirt_vm_src_dir }}/.git
+  name: stackhpc.libvirt-vm

playbooks/tenks-deploy-teardown/vars/common.yml

@@ -3,8 +3,13 @@
 # Variables shared between the playbooks
 
 tenks_src_dir: "{{ ansible_env.HOME ~ '/' ~ zuul.projects['opendev.org/openstack/tenks'].src_dir }}"
+stackhpc_libvirt_host_src_dir: >-
+  {{ ansible_env.HOME ~ '/' ~ zuul.projects['github.com/stackhpc/ansible-role-libvirt-host'].src_dir }}
+stackhpc_libvirt_vm_src_dir: >-
+  {{ ansible_env.HOME ~ '/' ~ zuul.projects['github.com/stackhpc/ansible-role-libvirt-vm'].src_dir }}
 upper_constraints_path: "{{ ansible_env.HOME ~ '/' ~ zuul.projects['opendev.org/openstack/requirements'].src_dir ~ '/upper-constraints.txt' }}"
 tenks_venv: "{{ ansible_env.HOME ~ '/' ~ 'venv-tenks' }}"
 config_dir: "{{ ansible_env.HOME ~ '/' ~ 'tenks-config' }}"
 tenks_overrides_path: "{{ config_dir ~ '/' ~ 'tenks-overrides.yml' }}"
+tenks_requirements_overrides_path: "{{ tenks_src_dir }}/requirements-overrides.yml"
 logs_dir: "/tmp/logs"

zuul.d/base.yaml

@@ -11,6 +11,8 @@
     post-run: playbooks/tenks-deploy-teardown/post.yml
     required-projects:
       - name: openstack/requirements
+      - name: stackhpc/ansible-role-libvirt-vm
+      - name: stackhpc/ansible-role-libvirt-host
     attempts: 1
     timeout: 1800
     irrelevant-files: